Spaceflight Now



STS-126 Ascent Timeline
COMPILED BY WILLIAM HARWOOD
Updated: November 11, 2008

Changes and additions:
- October 8: Posting initial release
- November 11: Updating throughout


TIME/EST......MM:SS...Thurst..Alt (ft)..Mach...VELr.......VELi......Gs....Range

07:55:34 PM...00:00...100.0...-23.......0.0....0.0..........914.4...0.3...0.0
07:55:44 PM...00:10...104.5...797.......0.2....128.2........922.6...1.7...0.0
07:55:54 PM...00:20...104.5...4,090.....0.4....313.0......1,030.3...1.9...0.1
07:56:04 PM...00:30...104.5...9,409.....0.7....499.1......1,168.7...1.9...0.5
07:56:14 PM...00:40...72.0....17,576....0.9....676.4......1,318.1...1.7...1.1
07:56:24 PM...00:50...78.0....26,568....1.1....815.5......1,447.6...1.7...2.0
07:56:34 PM...01:00...104.5...37,035....1.5....996.9......1,614.0...2.1...3.2

07:56:44 PM...01:10...104.5...50,929....2.0....1,268.3....1,873.1...2.4...4.9
07:56:54 PM...01:20...104.5...65,995....2.5....1,592.2....2,200.4...2.5...7.1
07:57:04 PM...01:30...104.5...85,063....3.0....1,989.0....2,610.2...2.5...10.4
07:57:14 PM...01:40...104.5...104,267...3.5....2,369.5....3,002.3...2.5...14.3
07:57:24 PM...01:50...104.5...126,999...3.9....2,778.7....3,423.7...2.1...19.7
07:57:34 PM...02:00...104.5...148,078...4.0....2,943.7....3,600.3...0.9...25.3

07:57:44 PM...02:10...104.5...168,824...4.1....3,038.5....3,708.1...1.0...31.6
07:57:54 PM...02:20...104.5...187,801...4.3....3,152.3....3,834.2...1.0...38.0
07:58:04 PM...02:30...104.5...207,387...4.6....3,293.5....3,986.3...1.0...45.5
07:58:14 PM...02:40...104.5...224,021...5.1....3,434.6....4,134.9...1.1...52.7
07:58:24 PM...02:50...104.5...241,045...5.5....3,602.4....4,310.2...1.1...61.1
07:58:34 PM...03:00...104.5...255,383...5.9....3,767.4....4,479.9...1.1...69.2

07:58:44 PM...03:10...104.5...269,925...6.3....3,960.4....4,677.7...1.1...78.6
07:58:54 PM...03:20...104.5...282,051...6.8....4,147.2....4,867.3...1.2...87.7
07:59:04 PM...03:30...104.5...293,156...7.2....4,344.3....5,065.7...1.2...97.2
07:59:14 PM...03:40...104.5...304,220...7.4....4,573.4....5,295.5...1.2...108.3
07:59:24 PM...03:50...104.5...313,256...7.6....4,791.6....5,514.4...1.2...118.9
07:59:34 PM...04:00...104.5...322,095...7.8....5,040.5....5,762.6...1.3...131.1

07:59:44 PM...04:10...104.5...329,172...8.1....5,277.1....5,998.5...1.3...142.8
07:59:54 PM...04:20...104.5...335,937...8.3....5,549.8....6,269.9...1.4...156.4
08:00:04 PM...04:30...104.5...341,191...8.5....5,808.2....6,526.9...1.4...169.3
08:00:14 PM...04:40...104.5...345,621...8.8....6,077.6....6,794.2...1.4...182.8
08:00:24 PM...04:50...104.5...349,579...9.1....6,386.5....7,101.1...1.5...198.4
08:00:34 PM...05:00...104.5...352,382...9.5....6,679.7....7,392.3...1.5...213.3

08:00:44 PM...05:10...104.5...354,639...9.9....7,016.5....7,725.7...1.6...230.5
08:00:54 PM...05:20...104.5...355,985...10.3...7,335.7....8,042.8...1.7...246.8
08:01:04 PM...05:30...104.5...356,698...10.7...7,668.4....8,372.8...1.7...263.9
08:01:14 PM...05:40...104.5...356,806...11.3...8,051.6....8,752.6...1.8...283.6
08:01:24 PM...05:50...104.5...356,340...11.8...8,415.1....9,113.3...1.9...302.3
08:01:34 PM...06:00...104.5...355,290...12.4...8,833.7....9,528.6...1.9...323.9

08:01:44 PM...06:10...104.5...353,986...13.0...9,230.6....9,922.7...2.0...344.5
08:01:54 PM...06:20...104.5...352,475...13.7...9,645.9....10,334.6..2.1...366.0
08:02:04 PM...06:30...104.5...350,575...14.4...10,130.0...10,815.3..2.2...390.8
08:02:14 PM...06:40...104.5...348,576...15.2...10,594.4...11,276.9..2.3...414.4
08:02:24 PM...06:50...104.5...346,185...16.1...11,134.4...11,812.9..2.5...441.6
08:02:34 PM...07:00...104.5...343,950...17.0...11,654.0...12,329.1..2.6...467.5

08:02:44 PM...07:10...104.5...341,578...18.0...12,260.2...12,931.2..2.8...497.5
08:02:54 PM...07:20...104.5...339,638...19.0...12,847.3...13,514.8..2.9...526.1
08:03:04 PM...07:30...100.0...338,063...20.0...13,458.9...14,123.1..3.0...556.0
08:03:14 PM...07:40...93.0....336,889...21.0...14,133.3...14,794.0..3.0...590.6
08:03:24 PM...07:50...87.0....336,419...22.0...14,745.6...15,403.0..3.0...623.5
08:03:34 PM...08:00...82.0....336,692...23.0...15,421.4...16,076.0..3.0...661.3

08:03:44 PM...08:10...77.0....337,810...23.8...16,033.7...16,685.6..3.0...697.1
08:03:54 PM...08:20...67.0....340,026...24.6...16,676.0...17,324.5..2.8...736.8
08:04:04 PM...08:30...67.0....343,098...24.7...16,957.0...17,604.1..0.0...776.6
08:04:09 PM...08:35...67.0....344,674...24.6...16,957.0...17,604.8..0.0...796.2

Abort Boundaries


EST..........T+........EVENT..................VELOCITY (inertial): FPS......MPH

1 engine out abort mode: RTLS

7:55:34 PM...T+00:00...Launch
7:55:45 PM...T+00:11...START ROLL MANEUVER........................1,360.....927
7:55:52 PM...T+00:18...END ROLL MANEUVER..........................1,470...1,002
7:56:07 PM...T+00:33...START THROTTLE DOWN (72%)..................1,780...1,214
7:56:23 PM...T+00:49...START THROTTLE UP (104.5%).................2,100...1,432
7:56:35 PM...T+01:01...MAX Q (746 psf)............................2,430...1,657
7:57:37 PM...T+02:03...SRB STAGING................................5,320...3,628
7:57:47 PM...T+02:13...START OMS ASSIST (1:36 duration)...........5,510...3,757

1 engine out abort mode: TAL

7:58:03 PM...T+02:29...2 ENGINE TAL MORON (104.5%, 2s)............5,900...4,023
7:58:09 PM...T+02:35...2 ENGINE TAL ZARAGOZA (104.5%, 2s).........6,000...4,091
7:58:19 PM...T+02:45...2 ENGINE TAL ISTRES (104.5%, 2s)...........6,200...4,228
7:59:26 PM...T+03:52...NEGATIVE RETURN (KSC) (104.5%, 3s).........8,100...5,523

1 engine out abort mode: ATO

8:00:26 PM...T+04:52...PRESS TO ATO (104.5%, 2s, 160 u/s)........10,500...7,160
8:00:57 PM...T+05:23...DROOP ZARAGOZA (109%,0s)..................12,000...8,183
8:00:58 PM...T+05:24...1 ENGINE OPS-3 ZARAGOZA (109%,0s,2EO).....12,100...8,251
8:01:39 PM...T+06:05...1 ENGINE TAL ZARAGOZA (104.5%,2s,2EO).....14,300...9,751
8:01:39 PM...T+06:05...1 ENGINE TAL MORON (109%,0s,2EO SEQ)......16,300...11,115

1 engine out abort mode: Press to normal orbit

8:02:17 PM...T+06:43...PRESS TO MECO (104.5%, 2s, 160 u/s).......16,800...11,456
8:02:17 PM...T+06:43...1 ENGINE TAL ISTRES (109%,0s,2EO SEQ).....16,900...11,524
8:02:42 PM...T+07:08...1 ENGINE PRESS-TO-MECO (104.5%,588 u/s)...18,800...12,819
8:02:56 PM...T+07:22...NEGATIVE MORON (2@67%)....................20,000...13,638
8:03:16 PM...T+07:42...LAST 2 ENG PRE-MECO TAL ZARAGOZA (67%)....21,800...14,865
8:03:16 PM...T+07:42...NEGATIVE ISTRES (2@67%)...................21,800...14,865
8:03:23 PM...T+07:49...LAST 1 ENG PRE-MECO TAL ZARAGOZA..........22,500...15,342
8:03:28 PM...T+07:54...LAST 3 ENG PRE-MECO TAL ZARAGOZA (67%)....23,000...15,683
8:03:52 PM...T+08:18...LAST TAL DIEGO GARCIA.....................25,300...17,252
8:04:03 PM...T+08:29...MECO COMMANDED............................25,800...17,592
8:04:09 PM...T+08:35...ZERO THRUST...............................25,818...17,605