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The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":-6.7899,"z":-41.0284},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-base-C706","tower":1,"case":"base","column":706,"sourceId":"w1b-706","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":14.541666666666657,"z":-5.083333333333343},"sourceNominalColumnPixelX":196,"windowFloorBounds":[91.368421,100.321429],"pieces":[{"id":"WTC1-base-C706-retained-1","samples":[{"floor":95.350877,"dxFt":0,"dzFt":0.0,"sourcePixel":[196,302]},{"floor":100.321429,"dxFt":0,"dzFt":0.0,"sourcePixel":[196,20]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC1-base-C706-retained-2","samples":[{"floor":91.368421,"dxFt":0,"dzFt":0.0,"sourcePixel":[196,529]},{"floor":92.982456,"dxFt":0,"dzFt":0.0,"sourcePixel":[196,437]},{"floor":93.45614,"dxFt":0,"dzFt":2.283933,"sourcePixel":[207,410]},{"floor":93.894737,"dxFt":0,"dzFt":6.021279,"sourcePixel":[225,385]},{"floor":94.192982,"dxFt":0,"dzFt":8.928103,"sourcePixel":[239,368]},{"floor":94.403509,"dxFt":0,"dzFt":9.550994,"sourcePixel":[242,356]},{"floor":94.649123,"dxFt":0,"dzFt":8.097582,"sourcePixel":[235,342]},{"floor":94.929825,"dxFt":0,"dzFt":4.983127,"sourcePixel":[220,326]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":18.1331,"z":-3.625},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C503","tower":1,"case":"severe","column":503,"sourceId":"w1s-503","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-24.66666666666667,"z":-41.750000000000014},"sourceNominalColumnPixelX":21,"windowFloorBounds":[91.394737,100.351351],"pieces":[{"id":"WTC1-severe-C503-retained-1","samples":[{"floor":95.447368,"dxFt":0,"dzFt":4.343783,"sourcePixel":[35,196]},{"floor":96.051282,"dxFt":0,"dzFt":4.343783,"sourcePixel":[35,173]},{"floor":96.589744,"dxFt":0,"dzFt":2.171891,"sourcePixel":[28,152]},{"floor":97.157895,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,130]},{"floor":100.351351,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,10]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC1-severe-C503-retained-2","samples":[{"floor":91.394737,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,350]},{"floor":95.315789,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,201]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":-25.8018,"z":-41.1932},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C504","tower":1,"case":"severe","column":504,"sourceId":"w1s-504","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-4.583333333333343,"z":-41.91666666666667},"sourceNominalColumnPixelX":21,"windowFloorBounds":[91.421053,100.307692],"pieces":[{"id":"WTC1-severe-C504-retained-1","samples":[{"floor":95.921053,"dxFt":0,"dzFt":12.622451,"sourcePixel":[62,185]},{"floor":96.236842,"dxFt":0,"dzFt":8.928075,"sourcePixel":[50,173]},{"floor":96.631579,"dxFt":0,"dzFt":4.61797,"sourcePixel":[36,158]},{"floor":97.026316,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,143]},{"floor":100.307692,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,17]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC1-severe-C504-retained-2","samples":[{"floor":91.421053,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,357]},{"floor":92.315789,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,323]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":-6.7899,"z":-41.0284},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C706","tower":1,"case":"severe","column":706,"sourceId":"w1s-706","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":14.541666666666657,"z":-5.083333333333343},"sourceNominalColumnPixelX":133,"windowFloorBounds":[91.421053,100.289474],"pieces":[{"id":"WTC1-severe-C706-retained-1","samples":[{"floor":95.342105,"dxFt":0,"dzFt":0.0,"sourcePixel":[133,199]},{"floor":100.289474,"dxFt":0,"dzFt":0.0,"sourcePixel":[133,12]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC1-severe-C706-retained-2","samples":[{"floor":91.421053,"dxFt":0,"dzFt":0.0,"sourcePixel":[133,350]},{"floor":92.973684,"dxFt":0,"dzFt":0.0,"sourcePixel":[133,291]},{"floor":93.564103,"dxFt":0,"dzFt":3.102702,"sourcePixel":[143,268]},{"floor":94.051282,"dxFt":0,"dzFt":8.997835,"sourcePixel":[162,249]},{"floor":94.564103,"dxFt":0,"dzFt":17.06486,"sourcePixel":[188,229]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":18.1331,"z":-3.625},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-base-C1001","tower":2,"case":"base","column":1001,"sourceId":"w2b-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":40.541666666666664,"z":65.75000000000001},"sourceNominalColumnPixelX":34,"windowFloorBounds":[76.288462,85.313725],"pieces":[{"id":"WTC2-base-C1001-retained-1","samples":[{"floor":83.38,"dxFt":0,"dzFt":-0.0,"sourcePixel":[34,113]},{"floor":85.313725,"dxFt":0,"dzFt":-0.0,"sourcePixel":[34,15]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-base-C1001-retained-2","samples":[{"floor":77.538462,"dxFt":0,"dzFt":2.384873,"sourcePixel":[24,416]},{"floor":78.017241,"dxFt":0,"dzFt":1.192437,"sourcePixel":[29,391]},{"floor":78.948276,"dxFt":0,"dzFt":-3.815797,"sourcePixel":[50,337]},{"floor":79.58,"dxFt":0,"dzFt":-8.347056,"sourcePixel":[69,305]},{"floor":80.22,"dxFt":0,"dzFt":-11.685879,"sourcePixel":[83,273]},{"floor":80.72,"dxFt":0,"dzFt":-10.016467,"sourcePixel":[76,248]},{"floor":81.803922,"dxFt":0,"dzFt":-4.769746,"sourcePixel":[54,193]},{"floor":82.843137,"dxFt":0,"dzFt":-0.238487,"sourcePixel":[35,140]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-base-C1001-retained-3","samples":[{"floor":76.288462,"dxFt":0,"dzFt":-0.0,"sourcePixel":[34,481]},{"floor":77.346154,"dxFt":0,"dzFt":-0.0,"sourcePixel":[34,426]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":41.0284,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-base-C903","tower":2,"case":"base","column":903,"sourceId":"w2b-903","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":24.916666666666657,"z":24.66666666666667},"sourceNominalColumnPixelX":179,"windowFloorBounds":[76.177778,85.304348],"pieces":[{"id":"WTC2-base-C903-retained-1","samples":[{"floor":83.377778,"dxFt":0,"dzFt":-0.0,"sourcePixel":[179,105]},{"floor":85.304348,"dxFt":0,"dzFt":-0.0,"sourcePixel":[179,17]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-base-C903-retained-2","samples":[{"floor":77.8,"dxFt":0,"dzFt":-12.663949,"sourcePixel":[227,367]},{"floor":78.226415,"dxFt":0,"dzFt":-13.191614,"sourcePixel":[229,346]},{"floor":78.735849,"dxFt":0,"dzFt":-14.774607,"sourcePixel":[235,319]},{"floor":79.326087,"dxFt":0,"dzFt":-15.829936,"sourcePixel":[239,290]},{"floor":79.717391,"dxFt":0,"dzFt":-15.038439,"sourcePixel":[236,272]},{"floor":80.333333,"dxFt":0,"dzFt":-10.817123,"sourcePixel":[220,244]},{"floor":81.152174,"dxFt":0,"dzFt":-3.693652,"sourcePixel":[193,207]},{"floor":82.108696,"dxFt":0,"dzFt":0.263832,"sourcePixel":[178,163]},{"floor":83.2,"dxFt":0,"dzFt":1.582994,"sourcePixel":[173,113]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-base-C903-retained-3","samples":[{"floor":76.177778,"dxFt":0,"dzFt":0.791497,"sourcePixel":[176,440]},{"floor":77.266667,"dxFt":0,"dzFt":0.791497,"sourcePixel":[176,391]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":26.0341,"z":25.8018},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C1001","tower":2,"case":"severe","column":1001,"sourceId":"w2s-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":40.541666666666664,"z":65.75000000000001},"sourceNominalColumnPixelX":46,"windowFloorBounds":[76.166667,85.303571],"pieces":[{"id":"WTC2-severe-C1001-retained-1","samples":[{"floor":83.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[46,134]},{"floor":85.303571,"dxFt":0,"dzFt":-0.0,"sourcePixel":[46,26]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-severe-C1001-retained-2","samples":[{"floor":77.481481,"dxFt":0,"dzFt":3.071717,"sourcePixel":[32,465]},{"floor":78.328125,"dxFt":0,"dzFt":-4.388167,"sourcePixel":[66,416]},{"floor":79.072727,"dxFt":0,"dzFt":-10.312192,"sourcePixel":[93,369]},{"floor":79.872727,"dxFt":0,"dzFt":-18.210892,"sourcePixel":[129,325]},{"floor":80.563636,"dxFt":0,"dzFt":-15.139175,"sourcePixel":[115,287]},{"floor":81.592593,"dxFt":0,"dzFt":-9.434558,"sourcePixel":[89,231]},{"floor":82.345455,"dxFt":0,"dzFt":-4.388167,"sourcePixel":[66,190]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-severe-C1001-retained-3","samples":[{"floor":76.166667,"dxFt":0,"dzFt":-0.0,"sourcePixel":[46,536]},{"floor":77.259259,"dxFt":0,"dzFt":-0.0,"sourcePixel":[46,477]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":41.0284,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C802","tower":2,"case":"severe","column":802,"sourceId":"w2s-802","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":5.541666666666657,"z":40.33333333333333},"sourceNominalColumnPixelX":161,"windowFloorBounds":[76.169811,85.351852],"pieces":[{"id":"WTC2-severe-C802-retained-1","samples":[{"floor":80.365385,"dxFt":0,"dzFt":-0.0,"sourcePixel":[161,297]},{"floor":85.351852,"dxFt":0,"dzFt":-0.0,"sourcePixel":[161,27]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-severe-C802-retained-2","samples":[{"floor":77.566038,"dxFt":0,"dzFt":3.955943,"sourcePixel":[143,462]},{"floor":78.111111,"dxFt":0,"dzFt":-1.318648,"sourcePixel":[167,432]},{"floor":78.650794,"dxFt":0,"dzFt":-7.032788,"sourcePixel":[193,398]},{"floor":79.116667,"dxFt":0,"dzFt":-12.527154,"sourcePixel":[218,369]},{"floor":79.5,"dxFt":0,"dzFt":-14.944674,"sourcePixel":[229,346]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-severe-C802-retained-3","samples":[{"floor":76.169811,"dxFt":0,"dzFt":-0.0,"sourcePixel":[161,536]},{"floor":77.320755,"dxFt":0,"dzFt":-0.0,"sourcePixel":[161,475]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":4.2841,"z":41.9379},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C803","tower":2,"case":"severe","column":803,"sourceId":"w2s-802","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":5.541666666666657,"z":14.0},"sourceNominalColumnPixelX":281,"windowFloorBounds":[76.169811,85.351852],"pieces":[{"id":"WTC2-severe-C803-retained-1","samples":[{"floor":80.365385,"dxFt":0,"dzFt":-0.0,"sourcePixel":[281,297]},{"floor":85.351852,"dxFt":0,"dzFt":-0.0,"sourcePixel":[281,27]}],"connectToNext":false,"sourceVisible":true},{"id":"WTC2-severe-C803-retained-2","samples":[{"floor":76.169811,"dxFt":0,"dzFt":1.977972,"sourcePixel":[272,536]},{"floor":77.301887,"dxFt":0,"dzFt":1.977972,"sourcePixel":[272,476]},{"floor":78.126984,"dxFt":0,"dzFt":-1.318648,"sourcePixel":[287,431]},{"floor":78.746032,"dxFt":0,"dzFt":-5.054816,"sourcePixel":[304,392]},{"floor":79.316667,"dxFt":0,"dzFt":-7.911886,"sourcePixel":[317,357]},{"floor":79.9,"dxFt":0,"dzFt":-9.670083,"sourcePixel":[325,322]}],"connectToNext":false,"sourceVisible":true}],"interpretation":"Disconnected source-visible column pieces. The severed table classification is preserved; retained material is restored only along these documented projected paths.","limits":["A row elevation constrains one projected displacement component; out-of-plane displacement is not resolved and is set to zero.","Thin raster path centers and broken ends are approximate; source-pixel uncertainty2px, registration roughly0.1floor.","Loose ambiguous fragments, connections, local flange/web tearing and numerical solver histories are not reconstructed."],"previousDiagramPositionFt":{"x":4.2841,"z":14.9379},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-base-C604","tower":1,"case":"base","column":604,"sourceId":"w1b-504","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-4.25,"z":-25.58333333333333},"sourceNominalColumnPixelX":119,"windowFloorBounds":[91.344828,100.293103],"pieces":[{"id":"WTC1-base-C604-retained-1","samples":[{"floor":92.586207,"dxFt":0,"dzFt":-0.621965,"sourcePixel":[116,454]},{"floor":93.072727,"dxFt":0,"dzFt":1.036608,"sourcePixel":[124,426]},{"floor":93.745455,"dxFt":0,"dzFt":3.317144,"sourcePixel":[135,389]},{"floor":94.157895,"dxFt":0,"dzFt":4.975716,"sourcePixel":[143,366]},{"floor":94.701754,"dxFt":0,"dzFt":6.012324,"sourcePixel":[148,335]},{"floor":95.105263,"dxFt":0,"dzFt":4.975716,"sourcePixel":[143,312]},{"floor":95.982456,"dxFt":0,"dzFt":2.487858,"sourcePixel":[131,262]},{"floor":97.017544,"dxFt":0,"dzFt":0.621965,"sourcePixel":[122,203]},{"floor":98.035714,"dxFt":0,"dzFt":0.0,"sourcePixel":[119,145]},{"floor":100.293103,"dxFt":0,"dzFt":0.0,"sourcePixel":[119,16]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC1-base-C604-retained-2","samples":[{"floor":91.344828,"dxFt":0,"dzFt":0.0,"sourcePixel":[119,526]},{"floor":92.258621,"dxFt":0,"dzFt":0.0,"sourcePixel":[119,473]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Upper and bent intermediate length remain continuous in this projection; only the clear lower break separates the bottom stub.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":-6.4704,"z":-26.0341},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C505","tower":1,"case":"severe","column":505,"sourceId":"w1s-505-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":4.416666666666657,"z":-41.91666666666667},"sourceNominalColumnPixelX":21,"windowFloorBounds":[91.324324,100.289474],"pieces":[{"id":"WTC1-severe-C505-retained-1","samples":[{"floor":95.421053,"dxFt":0,"dzFt":2.453693,"sourcePixel":[29,197]},{"floor":95.973684,"dxFt":0,"dzFt":2.760404,"sourcePixel":[30,176]},{"floor":96.394737,"dxFt":0,"dzFt":1.533558,"sourcePixel":[26,160]},{"floor":97.0,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,137]},{"floor":100.289474,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,12]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC1-severe-C505-retained-2","samples":[{"floor":91.324324,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,352]},{"floor":92.972973,"dxFt":0,"dzFt":0.0,"sourcePixel":[21,291]},{"floor":93.692308,"dxFt":0,"dzFt":1.533558,"sourcePixel":[26,263]},{"floor":94.5,"dxFt":0,"dzFt":3.373828,"sourcePixel":[32,232]},{"floor":95.210526,"dxFt":0,"dzFt":4.600674,"sourcePixel":[36,205]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Clear offset upper and lower ends; small ambiguous fragments to their left are excluded.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":6.9497,"z":-41.0284},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C604","tower":1,"case":"severe","column":604,"sourceId":"w1s-604704-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-4.25,"z":-25.58333333333333},"sourceNominalColumnPixelX":96,"windowFloorBounds":[91.38,100.313725],"pieces":[{"id":"WTC1-severe-C604-retained-1","samples":[{"floor":95.75,"dxFt":0,"dzFt":8.891131,"sourcePixel":[134,253]},{"floor":96.098039,"dxFt":0,"dzFt":4.211589,"sourcePixel":[114,235]},{"floor":96.568627,"dxFt":0,"dzFt":1.169886,"sourcePixel":[101,211]},{"floor":97.058824,"dxFt":0,"dzFt":0.0,"sourcePixel":[96,186]},{"floor":100.313725,"dxFt":0,"dzFt":0.0,"sourcePixel":[96,20]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC1-severe-C604-retained-2","samples":[{"floor":91.38,"dxFt":0,"dzFt":0.0,"sourcePixel":[96,474]},{"floor":92.34,"dxFt":0,"dzFt":0.0,"sourcePixel":[96,426]},{"floor":93.0,"dxFt":0,"dzFt":3.27568,"sourcePixel":[110,393]},{"floor":93.24,"dxFt":0,"dzFt":7.253291,"sourcePixel":[127,381]},{"floor":93.36,"dxFt":0,"dzFt":10.294994,"sourcePixel":[140,375]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"visibility-limit-at-overlap"}],"interpretation":"The lower bent member enters a dense beam/column overlap near pixel140,375. Trace stops at the last identifiable column centerline; this endpoint is a visibility limit, not an identified fracture surface.","reviewStatus":"partial-overlap-limited-trace","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"unresolvedRegions":[{"sourcePixelBounds":[136,349,198,383],"reason":"Overlapping column and beam fragments; lower-column continuation cannot be uniquely identified.","endpointIsConfirmedFracture":false}],"previousDiagramPositionFt":{"x":-6.4704,"z":-26.0341},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC1-severe-C704","tower":1,"case":"severe","column":704,"sourceId":"w1s-604704-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-4.541666666666671,"z":-3.6666666666666714},"sourceNominalColumnPixelX":188,"windowFloorBounds":[91.38,100.313725],"pieces":[{"id":"WTC1-severe-C704-retained-1","samples":[{"floor":95.384615,"dxFt":0,"dzFt":2.339771,"sourcePixel":[198,272]},{"floor":95.903846,"dxFt":0,"dzFt":1.403863,"sourcePixel":[194,245]},{"floor":96.411765,"dxFt":0,"dzFt":0.935909,"sourcePixel":[192,219]},{"floor":97.019608,"dxFt":0,"dzFt":0.0,"sourcePixel":[188,188]},{"floor":100.313725,"dxFt":0,"dzFt":0.0,"sourcePixel":[188,20]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC1-severe-C704-retained-2","samples":[{"floor":91.38,"dxFt":0,"dzFt":-0.467954,"sourcePixel":[186,474]},{"floor":92.28,"dxFt":0,"dzFt":-0.467954,"sourcePixel":[186,429]},{"floor":92.9,"dxFt":0,"dzFt":0.935909,"sourcePixel":[192,398]},{"floor":93.48,"dxFt":0,"dzFt":3.041703,"sourcePixel":[201,369]},{"floor":93.9,"dxFt":0,"dzFt":6.083406,"sourcePixel":[214,348]},{"floor":94.313725,"dxFt":0,"dzFt":4.211589,"sourcePixel":[206,327]},{"floor":94.745098,"dxFt":0,"dzFt":2.105794,"sourcePixel":[197,305]},{"floor":95.096154,"dxFt":0,"dzFt":1.403863,"sourcePixel":[194,287]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Clear split in the vertical member above its bent lower length. Adjacent torn beam fragments are not assigned to the column.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":-6.4704,"z":-3.4602},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-base-C901","tower":2,"case":"base","column":901,"sourceId":"w2b-903","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":25.58333333333333,"z":66.08333333333333},"sourceNominalColumnPixelX":22,"windowFloorBounds":[76.177778,85.326087],"pieces":[{"id":"WTC2-base-C901-retained-1","samples":[{"floor":80.777778,"dxFt":0,"dzFt":-2.37449,"sourcePixel":[31,224]},{"floor":81.021739,"dxFt":0,"dzFt":-2.37449,"sourcePixel":[31,213]},{"floor":81.543478,"dxFt":0,"dzFt":-1.055329,"sourcePixel":[26,189]},{"floor":82.043478,"dxFt":0,"dzFt":-0.0,"sourcePixel":[22,166]},{"floor":85.326087,"dxFt":0,"dzFt":-0.0,"sourcePixel":[22,16]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-base-C901-retained-2","samples":[{"floor":76.177778,"dxFt":0,"dzFt":-0.0,"sourcePixel":[22,440]},{"floor":78.54717,"dxFt":0,"dzFt":-0.0,"sourcePixel":[22,329]},{"floor":79.434783,"dxFt":0,"dzFt":-0.791497,"sourcePixel":[25,285]},{"floor":80.222222,"dxFt":0,"dzFt":-1.055329,"sourcePixel":[26,249]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Clear opening between the upper remnant and lower retained member; adjacent horizontal beam does not bridge the column.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":26.0341,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-base-C1002","tower":2,"case":"base","column":1002,"sourceId":"w2b-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":41.74999999999999,"z":45.66666666666667},"sourceNominalColumnPixelX":119,"windowFloorBounds":[76.288462,85.313725],"pieces":[{"id":"WTC2-base-C1002-retained-1","samples":[{"floor":80.36,"dxFt":0,"dzFt":-0.715462,"sourcePixel":[122,266]},{"floor":80.68,"dxFt":0,"dzFt":-1.192437,"sourcePixel":[124,250]},{"floor":81.137255,"dxFt":0,"dzFt":-1.192437,"sourcePixel":[124,227]},{"floor":82.019608,"dxFt":0,"dzFt":-0.0,"sourcePixel":[119,182]},{"floor":85.313725,"dxFt":0,"dzFt":-0.0,"sourcePixel":[119,15]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"projected-contact-severance-unresolved"},{"id":"WTC2-base-C1002-retained-2","samples":[{"floor":76.288462,"dxFt":0,"dzFt":-0.0,"sourcePixel":[119,481]},{"floor":78.034483,"dxFt":0,"dzFt":-0.0,"sourcePixel":[119,390]},{"floor":79.0,"dxFt":0,"dzFt":-0.715462,"sourcePixel":[122,334]},{"floor":79.96,"dxFt":0,"dzFt":-2.146386,"sourcePixel":[128,286]},{"floor":80.36,"dxFt":0,"dzFt":-2.146386,"sourcePixel":[128,266]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"projected-contact-severance-unresolved"}],"interpretation":"Published table says severed. Offset end surfaces touch/overlap in the row projection; unique fracture separation is unresolved. Retain two independent pieces at the projected end level without inventing a white gap.","reviewStatus":"projected-contact-separation-unresolved","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved.","Table-classified severance does not establish a visible open gap in this projection; the source pieces meet/overlap in projection. Their 3D connectivity and separation remain unresolved."],"previousDiagramPositionFt":{"x":41.0284,"z":46.0917},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-base-C1003","tower":2,"case":"base","column":1003,"sourceId":"w2b-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":41.74999999999999,"z":24.750000000000014},"sourceNominalColumnPixelX":206,"windowFloorBounds":[76.288462,85.313725],"pieces":[{"id":"WTC2-base-C1003-retained-1","samples":[{"floor":80.34,"dxFt":0,"dzFt":-1.430924,"sourcePixel":[212,267]},{"floor":80.62,"dxFt":0,"dzFt":-1.192437,"sourcePixel":[211,253]},{"floor":81.0,"dxFt":0,"dzFt":-0.238487,"sourcePixel":[207,234]},{"floor":81.980392,"dxFt":0,"dzFt":-0.0,"sourcePixel":[206,184]},{"floor":85.313725,"dxFt":0,"dzFt":-0.0,"sourcePixel":[206,15]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"projected-contact-severance-unresolved"},{"id":"WTC2-base-C1003-retained-2","samples":[{"floor":76.288462,"dxFt":0,"dzFt":-0.0,"sourcePixel":[206,481]},{"floor":78.034483,"dxFt":0,"dzFt":-0.0,"sourcePixel":[206,390]},{"floor":79.0,"dxFt":0,"dzFt":-0.238487,"sourcePixel":[207,334]},{"floor":79.96,"dxFt":0,"dzFt":-1.430924,"sourcePixel":[212,286]},{"floor":80.34,"dxFt":0,"dzFt":-1.907899,"sourcePixel":[214,267]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"projected-contact-severance-unresolved"}],"interpretation":"Published table says severed. Local ends overlap in projection and the break elevation is only approximate. Retain separate pieces with projected contact; no measured open gap is asserted.","reviewStatus":"projected-contact-separation-unresolved","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved.","Table-classified severance does not establish a visible open gap in this projection; the source pieces meet/overlap in projection. Their 3D connectivity and separation remain unresolved."],"previousDiagramPositionFt":{"x":41.0284,"z":25.8018},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C701","tower":2,"case":"severe","column":701,"sourceId":"w2s-701-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":-4.75,"z":66.04166666666667},"sourceNominalColumnPixelX":24,"windowFloorBounds":[76.132075,85.345455],"pieces":[{"id":"WTC2-severe-C701-retained-1","samples":[{"floor":80.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,289]},{"floor":85.345455,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,17]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C701-retained-2","samples":[{"floor":76.132075,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,529]},{"floor":77.962264,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,432]},{"floor":78.630769,"dxFt":0,"dzFt":-1.318648,"sourcePixel":[30,389]},{"floor":79.214286,"dxFt":0,"dzFt":-2.637295,"sourcePixel":[36,353]},{"floor":79.678571,"dxFt":0,"dzFt":-1.538422,"sourcePixel":[31,327]},{"floor":80.309091,"dxFt":0,"dzFt":-0.439549,"sourcePixel":[26,292]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Clear small separation above the bent lower member. Beam-end debris at floor79 is not substituted for column steel.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":-6.0966,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C801","tower":2,"case":"severe","column":801,"sourceId":"w2s-802","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":5.541666666666657,"z":66.04166666666667},"sourceNominalColumnPixelX":44,"windowFloorBounds":[76.169811,85.351852],"pieces":[{"id":"WTC2-severe-C801-retained-1","samples":[{"floor":80.326923,"dxFt":0,"dzFt":-0.0,"sourcePixel":[44,299]},{"floor":85.351852,"dxFt":0,"dzFt":-0.0,"sourcePixel":[44,27]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C801-retained-2","samples":[{"floor":76.169811,"dxFt":0,"dzFt":-0.219775,"sourcePixel":[45,536]},{"floor":78.238095,"dxFt":0,"dzFt":-0.219775,"sourcePixel":[45,424]},{"floor":78.84127,"dxFt":0,"dzFt":-1.098873,"sourcePixel":[49,386]},{"floor":79.583333,"dxFt":0,"dzFt":-2.417521,"sourcePixel":[55,341]},{"floor":80.25,"dxFt":0,"dzFt":-0.219775,"sourcePixel":[45,303]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Clear small separation at the upper/lower member ends; the lower member bends within the published projection.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":4.2841,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C901","tower":2,"case":"severe","column":901,"sourceId":"w2s-901903-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":25.58333333333333,"z":66.08333333333333},"sourceNominalColumnPixelX":24,"windowFloorBounds":[76.12963,85.333333],"pieces":[{"id":"WTC2-severe-C901-retained-1","samples":[{"floor":80.925926,"dxFt":0,"dzFt":-13.200379,"sourcePixel":[84,260]},{"floor":81.2,"dxFt":0,"dzFt":-7.920227,"sourcePixel":[60,245]},{"floor":81.490909,"dxFt":0,"dzFt":-5.280151,"sourcePixel":[48,229]},{"floor":81.890909,"dxFt":0,"dzFt":-1.100032,"sourcePixel":[29,207]},{"floor":82.236364,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,188]},{"floor":85.333333,"dxFt":0,"dzFt":-0.0,"sourcePixel":[24,19]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C901-retained-2","samples":[{"floor":76.12963,"dxFt":0,"dzFt":-0.220006,"sourcePixel":[25,530]},{"floor":78.967213,"dxFt":0,"dzFt":-0.220006,"sourcePixel":[25,370]},{"floor":79.517241,"dxFt":0,"dzFt":-0.220006,"sourcePixel":[25,338]},{"floor":79.982759,"dxFt":0,"dzFt":-1.100032,"sourcePixel":[29,311]},{"floor":80.259259,"dxFt":0,"dzFt":-2.200063,"sourcePixel":[34,296]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Two clear retained pieces; the small isolated red patch near95,285 cannot be assigned to a column with confidence and is excluded.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":26.0341,"z":65.9024},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C903","tower":2,"case":"severe","column":903,"sourceId":"w2s-901903-v7","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":24.916666666666657,"z":24.66666666666667},"sourceNominalColumnPixelX":213,"windowFloorBounds":[76.148148,85.333333],"pieces":[{"id":"WTC2-severe-C903-retained-1","samples":[{"floor":83.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[213,126]},{"floor":85.333333,"dxFt":0,"dzFt":-0.0,"sourcePixel":[213,19]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C903-retained-2","samples":[{"floor":78.540984,"dxFt":0,"dzFt":-5.280151,"sourcePixel":[237,396]},{"floor":79.172414,"dxFt":0,"dzFt":-12.980372,"sourcePixel":[272,358]},{"floor":79.62069,"dxFt":0,"dzFt":-20.020574,"sourcePixel":[304,332]},{"floor":79.913793,"dxFt":0,"dzFt":-23.760682,"sourcePixel":[321,315]},{"floor":80.0,"dxFt":0,"dzFt":-22.220638,"sourcePixel":[314,310]},{"floor":80.222222,"dxFt":0,"dzFt":-15.840454,"sourcePixel":[285,298]},{"floor":80.592593,"dxFt":0,"dzFt":-8.800252,"sourcePixel":[253,278]},{"floor":81.218182,"dxFt":0,"dzFt":-2.200063,"sourcePixel":[223,244]},{"floor":81.890909,"dxFt":0,"dzFt":2.640076,"sourcePixel":[201,207]},{"floor":82.509091,"dxFt":0,"dzFt":5.280151,"sourcePixel":[189,173]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C903-retained-3","samples":[{"floor":76.148148,"dxFt":0,"dzFt":0.880025,"sourcePixel":[209,529]},{"floor":77.296296,"dxFt":0,"dzFt":0.880025,"sourcePixel":[209,467]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"The detached middle column turns back horizontally but remains monotonic in elevation; source beam fragments at its crossings remain separate.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":26.0341,"z":25.8018},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C1002","tower":2,"case":"severe","column":1002,"sourceId":"w2s-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":41.74999999999999,"z":45.66666666666667},"sourceNominalColumnPixelX":139,"windowFloorBounds":[76.166667,85.303571],"pieces":[{"id":"WTC2-severe-C1002-retained-1","samples":[{"floor":83.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[139,134]},{"floor":85.303571,"dxFt":0,"dzFt":-0.0,"sourcePixel":[139,26]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1002-retained-2","samples":[{"floor":80.690909,"dxFt":0,"dzFt":-15.7974,"sourcePixel":[211,280]},{"floor":81.166667,"dxFt":0,"dzFt":-8.556925,"sourcePixel":[178,254]},{"floor":81.685185,"dxFt":0,"dzFt":-4.826983,"sourcePixel":[161,226]},{"floor":82.290909,"dxFt":0,"dzFt":-2.6329,"sourcePixel":[151,193]},{"floor":82.981818,"dxFt":0,"dzFt":-0.438817,"sourcePixel":[141,155]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1002-retained-3","samples":[{"floor":76.166667,"dxFt":0,"dzFt":-0.0,"sourcePixel":[139,536]},{"floor":78.890625,"dxFt":0,"dzFt":-0.0,"sourcePixel":[139,380]},{"floor":79.345455,"dxFt":0,"dzFt":-2.6329,"sourcePixel":[151,354]},{"floor":79.690909,"dxFt":0,"dzFt":-8.337517,"sourcePixel":[177,335]},{"floor":80.018182,"dxFt":0,"dzFt":-12.945092,"sourcePixel":[198,317]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Three retained pieces: upper stub, bent middle length and lower member. The detached horizontal beam fragment nearfloor80 is excluded.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":41.0284,"z":46.0917},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C1003","tower":2,"case":"severe","column":1003,"sourceId":"w2s-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":41.74999999999999,"z":24.750000000000014},"sourceNominalColumnPixelX":234,"windowFloorBounds":[76.166667,85.303571],"pieces":[{"id":"WTC2-severe-C1003-retained-1","samples":[{"floor":83.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[234,134]},{"floor":85.303571,"dxFt":0,"dzFt":-0.0,"sourcePixel":[234,26]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1003-retained-2","samples":[{"floor":80.472727,"dxFt":0,"dzFt":-12.725683,"sourcePixel":[292,292]},{"floor":80.745455,"dxFt":0,"dzFt":-12.067458,"sourcePixel":[289,277]},{"floor":81.12963,"dxFt":0,"dzFt":-11.409233,"sourcePixel":[286,256]},{"floor":81.444444,"dxFt":0,"dzFt":-9.653967,"sourcePixel":[278,239]},{"floor":81.740741,"dxFt":0,"dzFt":-6.143433,"sourcePixel":[262,223]},{"floor":82.236364,"dxFt":0,"dzFt":-2.852308,"sourcePixel":[247,196]},{"floor":83.0,"dxFt":0,"dzFt":0.438817,"sourcePixel":[232,154]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1003-retained-3","samples":[{"floor":76.166667,"dxFt":0,"dzFt":-0.0,"sourcePixel":[234,536]},{"floor":78.984375,"dxFt":0,"dzFt":-0.0,"sourcePixel":[234,374]},{"floor":79.509091,"dxFt":0,"dzFt":-2.852308,"sourcePixel":[247,345]},{"floor":80.036364,"dxFt":0,"dzFt":-7.679292,"sourcePixel":[269,316]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Three retained pieces. The horizontal member meeting the bent middle-column foot is a beam, not a continuation of the column path.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":41.0284,"z":25.8018},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"},{"id":"WTC2-severe-C1004","tower":2,"case":"severe","column":1004,"sourceId":"w2s-1001","classification":"severed","evidenceType":"NIST calculated row-elevation retained geometry","nominalPositionFt":{"x":41.916666666666664,"z":4.416666666666671},"sourceNominalColumnPixelX":321,"windowFloorBounds":[76.166667,85.303571],"pieces":[{"id":"WTC2-severe-C1004-retained-1","samples":[{"floor":83.363636,"dxFt":0,"dzFt":-0.0,"sourcePixel":[321,134]},{"floor":85.303571,"dxFt":0,"dzFt":-0.0,"sourcePixel":[321,26]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1004-retained-2","samples":[{"floor":80.418182,"dxFt":0,"dzFt":-9.21515,"sourcePixel":[363,295]},{"floor":80.890909,"dxFt":0,"dzFt":-9.21515,"sourcePixel":[363,269]},{"floor":81.259259,"dxFt":0,"dzFt":-8.118108,"sourcePixel":[358,249]},{"floor":81.759259,"dxFt":0,"dzFt":-4.388167,"sourcePixel":[341,222]},{"floor":82.236364,"dxFt":0,"dzFt":-2.194083,"sourcePixel":[331,196]},{"floor":83.109091,"dxFt":0,"dzFt":1.097042,"sourcePixel":[316,148]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"},{"id":"WTC2-severe-C1004-retained-3","samples":[{"floor":76.166667,"dxFt":0,"dzFt":-1.097042,"sourcePixel":[326,536]},{"floor":78.984375,"dxFt":0,"dzFt":-1.097042,"sourcePixel":[326,374]},{"floor":79.6,"dxFt":0,"dzFt":-4.826983,"sourcePixel":[343,340]},{"floor":80.145455,"dxFt":0,"dzFt":-8.337517,"sourcePixel":[359,310]}],"connectToNext":false,"sourceVisible":true,"endpointPolicy":"source-visible-end"}],"interpretation":"Three clear pieces including a strongly bent middle length; adjacent C1005 remains distinct and is not used to fill the break.","reviewStatus":"clear-retained-projection","limits":["Published NIST calculated result, not an observed survey of the inaccessible core.","Only the row projection is resolved; unknown orthogonal displacement remains zero.","Source end locations are raster estimates; nominal tracing uncertainty2px and floor registration about0.1floor.","Local section tearing, exact connection details and ambiguous overlapping debris remain unresolved."],"previousDiagramPositionFt":{"x":40.8636,"z":7.1095},"nominalPositionSource":"truss_layout.json / core_coordinate_registry / 97th-100th prototype"}],"scope":"All24severed tower/case entries reviewed. Source-visible retained pieces provided; local overlap and projected contact remain explicitly unresolved.","policy":{"classificationPreserved":true,"asbuiltUnchanged":true,"exteriorObservedStateUnchanged":true,"untracedSeveredColumns":"All24selected-case severed entries now have retained projection profiles; exact 3D separation remains unresolved for two projected-contact cases, and one lower-column continuation is overlap-limited."}}}