Author Topic: The SpaceX Scrubs thread  (Read 119062 times)

Offline cartman

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The SpaceX Scrubs thread
« on: 01/06/2015 08:16 PM »
Every time SpaceX scrubs a launch we have the usual gnashing of teeth, somebody will ask if it is normal that they still find problems after so many launches and static fires, another will say that other companies launch on the first time, SpaceX should be mature by now yada yada....

So I am starting this thread in order to get in one place all the info about SpaceX scrubs (I will edit this post to create a table with every launch attempt, so please help me with any info you have), and hopefully some good info about why they happened. In time I will try to get some statistics and comparison with other launch vehicles. Finally I think this is a good place to have a conversation about why they are happening, if there are some recurring patterns like helium leaks, valves etc.

----Key----
S: Static fire attempt (unsuccessful)
X: Weather scrub of static fire
F: Successful static fire
C: Countdown attempt (unsuccessful)
W: Weather scrub of launch
R: Range scrub of launch
D: Mission delay
L: Launch
LF: Launch Failure
BL: Booster Lost (controlled re-entry/landing attempted)
BR: Booster Recovered

[] source
(not verified) kindly requesting the community to verify my info about this mission, as I believe I have gathered all public info about it
(verified) mission info verified

----Missions---
->Falcon 1
Falcon 1 flight 01 - FalconSAT-2
Falcon 1 flight 02 - DemoFlight 2
Falcon 1 flight 03 - Trailblazer, NanoSail-D, PRESat, Explorers
Falcon 1 flight 04 - RatSat
Falcon 1 flight 05 - RazakSAT

->Falcon 9 v1.0
Falcon 9 flight 01 - Test flight 1
(incomplete)
  S) 2010-03-09, Abort at spin start T-0:02[44]
  C) 2010-06-04, Out of range engine parameter, sensor error T-0:01[43]
Falcon 9 flight 02 - COTS Demo flight 1 (not verified)
  S) 2010-12-03, Aborted at T-1.1 seconds due to high engine chamber pressure [50]
  S) 2010-12-04, Low gas generator pressure in engine 6. [51]
  F) 2010-12-04, Successful static fire [52]
  C) 2010-12-08, False abort on the Ordnance Interrupter (OI) ground feedback  [53]
  L) 2010-12-08, Successful launch [54]
Falcon 9 flight 03 - COTS Demo flight 2 (incomplete)
  C) 2012-05-19, High pressure reading in engine 5 chamber due to a faulty check valve T-0:01[42]
Falcon 9 flight 04 - SpaceX CRS-1 (not verified)
  F) 2012-09-29, Successful static fire [32]
  L) 2012-10-07, Successful launch (the one with the engine failure) [33]
Falcon 9 Flight 05 - SpaceX CRS-2 (not verified)
  F) 2013-02-25, Successful static fire [28]
  L) 2013-03-01, Successful launch [29]

->Falcon 9 v1.1
Falcon 9 flight 06 - CASSIOPE (verified)
  S) 2013-09-11, Several issues during tanking [3]
  S) 2013-09-12, Countdown abort [3]
  S) 2013-09-12, Countdown abort [3]
  S) 2013-09-12, Fired with issues [3]

  F) 2013-09-19, Successful static fire [3]
  D) 2013-09-19 - 2013-09-29, Delay due to LRR and mostly due to range conflicts [31]
  L) 2013-09-29, Successful launch [4]

  BL) 2013-09-29, First Boostback/landing burn attempt. First water landing attempt but "spun up due to aero torque, centrifuged and flamed out" (received telemetry only)
Falcon 9 flight 07 - SES-8 (not verified)
  S) 2013-11-20, Unspecified issues, weather [7]
  F) 2013-11-21, Successful static fire (the one with the excessive venting) [7]
  C) 2013-11-25, 1st stage LOX vent/pressure relief valve. [5]
  C) 2013-11-25, Ground electrical power supply. [5]
  C) 2013-11-25, 1st stage LOX vent/pressure relief valve, premature release of ECS duct. [5][41]
  C) 2013-11-28, Abort at ignition by low ramp up of thrust on Merlin 1D engines, T-0:01 [6][40]
  C) 2013-11-28, Oxygen contamination of ground side TEA-TEB T-1:00 [6]

  L) 2013-12-03, Successful launch [6]
Falcon 9 flight 08 - Thaicom 6 (not verified)
  F) 2013-12-29, Successful static fire [26]
  D) 2014-01-03 - 2014-01-06, Delay due to payload fairing issue [26]
  L) 2014-01-06, Successful launch [27]
Falcon 9 flight 09 - SpaceX CRS-3 (verified)
  X) 2014-03-07, Weather scrub of static fire [30]
  F) 2014-03-08, Successful static fire [21]
  D) 2014-03-16 - 2014-03-30, Delay due to payload contamination [22]
  D) 2014-03-30 - 2014-04-14, Delay due to fire damage to range radar [23]
  C) 2014-04-14, Helium leak on 1st stage [24][39]
  L) 2014-04-18, Successful launch [25]
  BL) 2014-04-18, First use of landing legs. NSF video reconstruction effort
Falcon 9 flight 10 - OG2 Mission 1 (not verified)
  S) 2014-05-08, Umbilical connections between the pad and the rocket [15]
  S) 2014-05-09, Helium leak at Composite Overwrap Pressure Vessels (COPV) [16]
  D) 2014-05-10 - 2015-06-20, Delay due to helium leak, range, re-test on the satellites [16,17]
  F) 2014-06-13, Successful static fire [18]
  C) 2014-06-20, Pressure decrease in 2nd stage [19]
  W) 2014-06-21, Weather (the one without the webcast) [19]
  C) 2014-06-22, 1st stage TVC actuator [19]
  D) 2014-06-22 - 2015-07-14, Delay due to TVC actuator, range maintenance [19]
  F) 2014-07-11, 2nd Successful static fire [19]
  C) 2014-07-14, Ground Support Equipment (GSE) [20]
  L) 2014-07-14, Successful launch [20]
  BL) 2014-07-14, Third water landing attempt, first "soft" water landing
Falcon 9 flight 11 - Asiasat 8 (not verified)
  F) 2014-07-31, Successful static fire [13]
  C) 2014-08-06, Abort, 1st stage hydraulic parameters T-0:45 [14]
  L) 2014-08-06, Successful launch [14]
Falcon 9 flight 12 - Asiasat 6 (not verified)
  F) 2014-08-22, Successful static fire [10]
  D) 2014-08-27 - 2014-09-06, Delay due to F9R accident, commonality evaluation [11]
  L) 2014-09-07, Successful launch [12]
Falcon 9 flight 13 - SpaceX CRS-4 (not verified)
  F) 2014-09-17, Successful static fire [8]
  W) 2014-09-19, Weather scrub [9][45]
  L) 2014-09-21, Successful launch [9]
Falcon 9 flight 14 - SpaceX CRS-5 (not verified)
  S) 2014-12-17, Early engine shutdown during static fire [8]
  F) 2014-12-19, Successful static fire [1]
  D) 2014-12-19 - 2015-01-05, Delay due to static fire issue, ISS beta angles and holidays [1]
  C) 2015-01-06, Z axis actuator drift on the 2nd stage thrust vector control system, Τ-1:21 [2][38]
  L) 2015-01-10, Successful launch (the one with the ASDS crash landing) [34]
  BL) 2015-01-10, First ASDS landing attempt, First use of Hypersonic Grid fins (ran out of hydraulic fluid), 45 degree crash/explosion
Falcon 9 flight 15 - DSCOVR (not verified)
  F) 2015-01-31, Successful static fire [35]
  R) 2015-02-08, Scrub due to AF radar outage, Τ-2:26. Issue with 1st stage video transmitter (not needed for launch). There may have been a non-public vehicle issue that would have scrubbed launch as well [36][37]
  D) 2015-02-09, Weather delay[36]
  W) 2015-02-10, Weather scrub, red upper level winds T-12:41[36]
  L) 2015-02-11, Successful launch (the one with the ASDS call off due to 10m waves) [36]
  BL) 2015-02-11, No ASDS - 10m waves - "soft, precise water landing"
Falcon 9 Flight 16 - ABS-3A & Eutelsat 115 West B (not verified)
  F) 2015-02-25, Successful static fire [46]
  L) 2015-03-02, Successful launch (The one with the 2 electric satellites) [47]
Falcon 9 Flight 17 - SpaceX CRS-6 (not verified)
  F) 2015-04-11, Successful static fire [48]
  W) 2015-04-13, Weather scrub, anvil rule, T-3:07 [48]
  L) 2015-04-14, Successful launch (the one where the 1st stage landed and tipped over)[48]
  BL) 2015-04-14, Second ASDS landing attempt, high lateral velocity (because of stuck valve), tipped over.
Falcon 9 Flight 18 - TurkmenAlem52/MonacoSat (not verified)
  F) 2015-04-22, Successful static fire [56]
  L) 2015-04-27, Successful launch (the one that was swapped with CRS-6 due to a helium bottle issue) [55]
Falcon 9 Flight 19 - SpaceX CRS-7 (not verified)
  F) 2015-06-26, Successful static fire [57]
  LF) 2015-06-28, Launch failure (the one where the second stage went kaboom 139 seconds into first stage flight) [58]

Falcon 9 Flight 21 - Jason-3 (not verified)
payload mass: 510 kilograms, orbit: LEO 1,336km [62]
  F) 2016-01-11, Successful static fire [63]
  L) 2016-01-17, Successful launch (the one that was the last F9 v1.1)[62]
  BL) 2016-01-17, Successful barge landing but a leg lockout didn’t latch, so it tipped over after landing [62]

->Falcon 9 FT
Falcon 9 Flight 20 - ORBCOMM-2 RTF Mission (not verified)
  S) 2015-12-16, Unsuccessful static fire [59]
  S) 2015-12-17, Unsuccessful static fire, deep cryo liquid oxygen presenting some challenges [59]
  F) 2015-12-18, Successful static fire [59]
  D) 2015-12-20, 24h delay for improved odds for landing attempt and better analysis for subcooled LOX (Possibly due to wind gusts that affect landing and LOX temps) [60]
  L) 2015-12-21, Successful launch (the one with the epic landing at LZ1)[61]
  BR) 2015-12-21, Successful landing at LZ1[61]
  S) 2016-01-14, Static fire scrub (ground side issues) [67]
  F) 2016-01-15, Successful static fire (engine 9 showed thrust fluctuations. Maybe some debris ingestion) [67]

Falcon 9 Flight 22 - SES-9 (not verified)
payload mass: 5,271 kilograms, orbit: geosynchronous, delivered orbit: 334 x 40648 km x 27.96° [65], [69]
  F) 2016-02-22, Successful static fire [64]
  D) 2016-02-24, 24h delay to ensure liquid oxygen temperatures are as cold as possible in an effort to maximize performance of the vehicle (due to high winds) [66]
  C) 2016-02-25, Scrub at T-1:41, LOX loading issues [65]
  R) 2016-02-28, Delay, wayward boat got into range [65]
  C) 2016-02-28, Scrub at T-0, aborted on low thrust alarm. Rising oxygen temps due to hold for boat and helium bubble triggered alarm [65]
  D) 2016-03-01, Delay due to extreme high altitude wind shear [68]
  L) 2016-03-05, Successful launch (the one with the difficult landing attempt) [65]
  BL) 2016-03-05, Hard landing on the ASDS (3 engine landing burn, run out of propellant, no boostback burn) [65][74]

Falcon 9 Flight 23 - CRS-8 (not verified)
payload mass: Dragon + 3,136 kilograms delivered to ISS, orbit: LEO, delivered orbit: 357 x 211 km x 51.66° [71],[73]       
  (McGregor) 2016-02-05, Successful static fire [72]
  (McGregor) 2016-02-08, GSE failure damaged most of the first stage’s engine nozzles [72]

  F) 2016-04-06, Successful static fire [70]
  L) 2016-04-08, Successful launch (the one with the webcam stalking at port Canaveral) [71]
  BR) 2016-04-08, Successful landing at OCISLY [71]

Falcon 9 Flight 24 - JCSAT-14 (not verified)
payload mass: 4,696.2 kilograms, orbit: geosynchronous, delivered orbit: 189 x 35957 km x 23.70° [75] [78]
  F) 2016-05-01, Successful static fire (no payload) [74]
  D) 2016-05-05, Weather delay [76]
  L) 2016-05-06, Successful launch (the one with the first GTO barge landing) [77]
  BR) 2016-05-06, Successful landing at OCISLY (3 engine landing burn) [77]

Falcon 9 Flight 25 - Thaicom-8 (not verified)
payload mass: ~3,200 kilograms, orbit: geosynchronous, delivered orbit: 349 x 90392 km x 21.21° [81]
  F) 2016-05-24, Successful static fire (with payload) [79]
  C) 2016-05-26, Scrub due to a issue with an upper stage engine actuator [80]
  L) 2016-05-27, Successful launch (the one with the first stage landing cam) [80]
  BR) 2016-05-27, Successful landing at OCISLY (1-3-1 engine landing burn) [80]

Falcon 9 Flight 26 - Eutelsat 117W B & ABS 2A (not verified)
payload mass: 4,200 kilograms, orbit: geosynchronous
delivered orbit: 395 x 62591 km x 24.68°(Eutelsat), 398 x 62750 km x 24.68°(ABS) [83] [84]
  D) 2016-06-10, 2 day static fire delay probably due to range conflict with Delta IV Heavy at the pad [85]
  F) 2016-06-12, Successful static fire [85]
  L) 2016-06-15, Successful launch (the one with the Delta IV Heavy conflict) [82]
  BL) 2016-06-15, Hard landing on the ASDS (3 engine landing burn, low thrust on 1 engine) [82][86]


----Sources----
[1] http://www.nasaspaceflight.com/2014/12/spacex-static-fire-falcon-9-crs-5/
[2] http://www.nasaspaceflight.com/2015/01/spacex-dragon-crs-5-launch-historic-core-return/
[3] http://www.nasaspaceflight.com/2013/09/falcon-9-v1-1-hot-fire-ahead-cassiope-mission/
[4] http://www.nasaspaceflight.com/2013/09/spacex-debut-falcon-9-v1-1-cassiope-launch/
[5] http://www.nasaspaceflight.com/2013/11/falcon-9-aiming-thanksgiving-launch-ses-8/
[6] http://www.nasaspaceflight.com/2013/12/spacex-falcon-9-v1-1-milestone-ses-8-launch/
[7] http://www.nasaspaceflight.com/2013/11/spacex-falcon-9-v1-1-hot-fire-slc-40/
[8] http://www.nasaspaceflight.com/2014/09/falcon-9-v1-1-static-fire-crs-4-launch/
[9] http://www.nasaspaceflight.com/2014/09/spacex-launch-dragon-crs-4-mission/
[10] http://www.nasaspaceflight.com/2014/08/spacex-static-fire-asiasat-6-test-failure/
[11] http://www.nasaspaceflight.com/2014/08/spacex-delay-asiasat-6-launch/
[12] http://www.nasaspaceflight.com/2014/09/spacex-falcon-9-asiasat-6-mission/
[13] http://www.nasaspaceflight.com/2014/07/falcon-9-static-fire-test-ahead-asiasat-8-mission/
[14] http://www.nasaspaceflight.com/2014/08/spacex-falcon-9-v1-1-asiasat-8-launch/
[15] http://www.nasaspaceflight.com/2014/05/spacex-falcon-9-static-fire-test/
[16] http://www.nasaspaceflight.com/2014/05/spacex-targets-june-11-falcon-9-orbcomm/
[17] http://www.nasaspaceflight.com/2014/06/commercial-duo-refine-upcoming-launch-dates/
[18] http://www.nasaspaceflight.com/2014/06/spacex-completes-falcon-9-static-fire-delays-launch/
[19] http://www.nasaspaceflight.com/2014/07/spacex-conducts-static-fire-next-falcon-9/
[20] http://www.nasaspaceflight.com/2014/07/spacex-falcon-9-v1-1-orbcomm-og2-mission/
[21] http://www.nasaspaceflight.com/2014/03/falcon-9-v1-1-static-fire-crs-3-mission/
[22] http://www.nasaspaceflight.com/2014/03/sewing-machine-contamination-spacexs-crs-3-dragon/
[23] http://www.nasaspaceflight.com/2014/03/eastern-range-radar-upcoming-launches/
[24] http://forum.nasaspaceflight.com/index.php?topic=34476.15
[25] http://www.nasaspaceflight.com/2014/04/spacex-crs-3-dragon-new-milestones/
[26] http://www.nasaspaceflight.com/2014/01/spacex-falcon-9-v1-1-static-fire-test-thaicom-6-launch/
[27] http://www.nasaspaceflight.com/2014/01/spacex-falcon-9-v1-1-launch-thaicom-6/
[28] http://forum.nasaspaceflight.com/index.php?topic=30700.msg1017390#msg1017390
[29] http://www.nasaspaceflight.com/2013/03/spacex-milestone-falcon9-launch-dragon-crs2/
[30] http://www.spaceflightinsider.com/space-flight-news/spacex-delays-static-test-fire-falcon-9-crs-3-mission/
[31] http://spacenews.com/37251pad-interface-anomalies-range-conflicts-push-falcon-9-11-launch-to-late/
[32] http://www.nasaspaceflight.com/2012/09/falcon-9-hot-fires-engines-iss-prepares-dragons-arrival/
[33] http://www.nasaspaceflight.com/2012/10/falcon-9loft-dragon-crs-1-mission-iss-attempt1/
[34] http://www.nasaspaceflight.com/2015/01/spacex-dragon-crs-5-launch-historic-core-return/
[35] http://www.nasaspaceflight.com/2015/01/spacex-static-fire-test-dscovr-mission/
[36] http://www.nasaspaceflight.com/2015/02/spacex-falcon-9-dscovr-mission/
[37]
[38]
[39]
[40]
[41]
[42]
[43]
[44]
[45]
[46] http://www.nasaspaceflight.com/2015/02/legless-falcon-9-static-fire-ahead-launch/
[47] http://www.nasaspaceflight.com/2015/03/spacex-falcon-9-debut-dual-satellite-mission/
[48] http://www.nasaspaceflight.com/2015/04/spacex-falcon-9-crs-6-dragon-stage-return/
[50] http://forum.nasaspaceflight.com/index.php?topic=23454.msg665911#msg665911
[51] http://forum.nasaspaceflight.com/index.php?topic=23454.msg666165#msg666165
[52] http://forum.nasaspaceflight.com/index.php?topic=23454.msg666253#msg666253
[53] http://forum.nasaspaceflight.com/index.php?topic=23516.msg668072#msg668072
[54] http://forum.nasaspaceflight.com/index.php?topic=23516.msg668153#msg668153
[55] http://www.nasaspaceflight.com/2015/04/spacex-falcon-9-loft-turkmenistans-first-satellite
[56] http://www.nasaspaceflight.com/2015/04/spacex-ready-launch-key-commercial-crew-test
[57] http://www.nasaspaceflight.com/2015/06/spacex-static-fire-falcon-9-crs7-mission
[58] http://www.nasaspaceflight.com/2015/06/falcon-9-crs-7-dragon-commute-orbit
[59] http://www.nasaspaceflight.com/2015/12/spacex-static-fire-falcon-9-og-2-rtf
[60] http://forum.nasaspaceflight.com/index.php?topic=38667.msg1460721#msg1460721
[61] http://www.nasaspaceflight.com/2015/12/spacex-rtf-core-return-attempt-og2
[62] http://www.nasaspaceflight.com/2016/01/spacex-launch-jason-3
[63] http://www.nasaspaceflight.com/2016/01/spacex-preparing-west-coast-jason-3-launch-with-last-falcon-9-v1-1
[64] http://www.nasaspaceflight.com/2016/02/spacex-falcon-9-static-fire-ahead-ses-9-launch
[65] http://www.nasaspaceflight.com/2016/03/spacex-falcon9-ses-9-launch
[66] http://forum.nasaspaceflight.com/index.php?topic=39348.msg1495393#msg1495393
[67] http://www.nasaspaceflight.com/2016/01/spacex-fire-up-falcon-9-first-stage-slc-40
[68] https://twitter.com/elonmusk/status/704770247769722880
[69] http://forum.nasaspaceflight.com/index.php?topic=39348.msg1499997#msg1499997
[70] https://www.nasaspaceflight.com/2016/04/spacex-falcon-9-static-fire-crs-8-mission
[71] https://www.nasaspaceflight.com/2016/04/spacex-dragon-rtf-falcon9-launch
[72] https://www.nasaspaceflight.com/2016/02/spacex-prepares-ses-9-mission-dragons-return
[73] http://forum.nasaspaceflight.com/index.php?topic=39537.msg1514345#msg1514345
[74] https://www.nasaspaceflight.com/2016/05/spacex-static-fire-jcsat-14-mission
[75] http://forum.nasaspaceflight.com/index.php?topic=40231.msg1528689#msg1528689
[76] https://twitter.com/SpaceX/status/727873475466153984
[77] https://www.nasaspaceflight.com/2016/05/falcon-9-jcsat-14-launch
[78] http://forum.nasaspaceflight.com/index.php?topic=39843.msg1529873#msg1529873
[79] https://www.nasaspaceflight.com/2016/05/spacex-line-up-falcon-9-upcoming-missions
[80] https://www.nasaspaceflight.com/2016/05/falcon-9-thaicom-8-launch
[81] http://forum.nasaspaceflight.com/index.php?topic=40182.msg1541194#msg1541194
[82] https://www.nasaspaceflight.com/2016/06/spacex-falcon-9-dual-satellite-launch
[83] http://www.zarya.info/Diaries/Launches/Launches.php?year=2016#038
[84] http://spaceflightnow.com/2016/06/14/mission-events-timeline-for-falcon-9s-launch-for-abs-and-eutelsat
[85] https://www.nasaspaceflight.com/2016/06/spacex-readies-falcon-9-reuse-testing
[86] https://twitter.com/elonmusk/status/743097337782763521

----Thanks----
Erazzzer, Proponent, eriblo, rower2000, saliva_sweet, heweheweh, meekGee, llanitedave, savuporo,
foltster, deruch, Bargemanos, Smoke-away, Comga, Swoopert, mikelepage

----Graphs and statistics----
Falcon 9 on-time launch probability graph, compared to Atlas V by saliva_sweet
« Last Edit: 06/16/2016 09:52 PM by cartman »

Offline Erazzzer

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Re: The SpaceX Scrubs thread
« Reply #1 on: 01/06/2015 09:10 PM »
SES-8 mission, November 28th 2013:



Same mission, November 25th:



CRS-4 mission, September 19th 2014:



Just search on YouTube "Spacex scrub"
« Last Edit: 01/06/2015 09:16 PM by Erazzzer »

Offline Proponent

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Re: The SpaceX Scrubs thread
« Reply #2 on: 01/06/2015 09:19 PM »
Great idea for a thread.  I think this kind of information is quite interesting and gives insight into the rate of progress.

Attached is a spreadsheet on which I've been attempting to track Falcon 9 v1.1 scrubs.  It is, I'm sure, incomplete and suffers from the lack of a consistent definition of "attempt."

Offline Erazzzer

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Re: The SpaceX Scrubs thread
« Reply #3 on: 01/06/2015 09:28 PM »
What I personally would like on that sheet is also the delayed/postponed attempts. SpaceX had a lot of those too and not all of them were due to weather issues.

Offline cartman

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Re: The SpaceX Scrubs thread
« Reply #4 on: 01/06/2015 09:32 PM »
Thanks for your great replies, Proponent your spreadsheet is a very good start for this thread!
Also, it will be very nice if we manage to have videos or some documentation of the attempts, thanks Erazzzer!

Offline MTom

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Re: The SpaceX Scrubs thread
« Reply #5 on: 01/06/2015 09:49 PM »
Thanks for the opening post!

Suggestion:
The title should be modified to "general" thread.
Details about scrubbed missions should discussed in the mission threads.
The spreadsheet here should be only an overview allowing general discussion about scrubs at SpaceX.


Online cscott

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Re: The SpaceX Scrubs thread
« Reply #6 on: 01/06/2015 10:01 PM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

Offline Lar

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Re: The SpaceX Scrubs thread
« Reply #7 on: 01/06/2015 10:03 PM »
What follows does not include weather scrubs. Only scrubs for technical issues. Also, IMHO... and I am a fan boy not a rocket scientist.

My background is software and I've learned that you never get the last bug out of complex systems. There was an academic effort to devise methods to prove programs correct. It fizzled. Any large complex software package always has bugs, IMHO. You fix them as you find them and your goal is to introduce less new bugs than you fix. Over time older code gets more and more robust (but since the large complex software package is having new features bolted on, it may or may not be getting buggier overall)

I'm not bothered by scrubs, per se.

What would bother me is if the scrubs were due to the same exact problem over and over.

My expectation is that over time, the scrubs/launch ratio will decline, and that the nature of the problems that caused scrubs would become more and more esoteric and  more and more edge case related.
"I think it would be great to be born on Earth and to die on Mars. Just hopefully not at the point of impact." -Elon Musk
"We're a little bit like the dog who caught the bus" - Musk after CRS-8 S1 successfully landed on ASDS OCISLY

Offline Lar

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Re: The SpaceX Scrubs thread
« Reply #8 on: 01/06/2015 10:05 PM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

I think this thread has merit. But I'm not sure I'd move every single scrub related post here. This is something to discuss with the other mods, please don't worry it to death here, ok?
"I think it would be great to be born on Earth and to die on Mars. Just hopefully not at the point of impact." -Elon Musk
"We're a little bit like the dog who caught the bus" - Musk after CRS-8 S1 successfully landed on ASDS OCISLY

Offline heweheweh

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Re: The SpaceX Scrubs thread
« Reply #9 on: 01/06/2015 10:08 PM »
... so please help me with any info you have...

Falcon 9 Flight 11 - Asiasat 8
2014-08-05, Abort T-45 seconds, First stage: Hydraulic parameters
http://forum.nasaspaceflight.com/index.php?topic=35210.msg1239035#msg1239035
http://forum.nasaspaceflight.com/index.php?topic=35210.msg1239105#msg1239105
http://www.nasaspaceflight.com/2014/08/spacex-falcon-9-v1-1-asiasat-8-launch/

Falcon 9 Flight 12 - Asiasat 6
2014-08-26, Fixed, Helium leak, two valves replaced
2014-08-26, Delayed, potential commonality with failed test rocket
http://www.nasaspaceflight.com/2014/08/spacex-delay-asiasat-6-launch/

Falcon 9 Flight 13 - SpaceX CRS-4
2014-09-19, Delayed, to accommodate preparations
http://www.nasa.gov/press/2014/september/nasa-coverage-set-for-fourth-spacex-mission-to-space-station/

2014-09-20, Scrub, Weather
http://forum.nasaspaceflight.com/index.php?topic=35593.msg1259128#msg1259128

Offline cartman

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Re: The SpaceX Scrubs thread
« Reply #10 on: 01/06/2015 10:21 PM »
Thanks everybody for your replies. At first i will try to get one line for every static fire scrub and static fire success, every countdown scrub and finally every launch. I think we shouldn't include anything that happened while the rocket was inside. An attempt is either a static fire or a launch campaign with the payload integrated and an intention to "light this candle"
« Last Edit: 01/06/2015 10:24 PM by cartman »

Offline MTom

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Re: The SpaceX Scrubs thread
« Reply #11 on: 01/06/2015 10:24 PM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

I think this thread has merit. But I'm not sure I'd move every single scrub related post here. This is something to discuss with the other mods, please don't worry it to death here, ok?

If we look at (as example) some recent posts:
- there are posts which discuss about the technical details (facts or opinions), like this
http://forum.nasaspaceflight.com/index.php?topic=35853.msg1311412#msg1311412
- and general discussion about scrubs, like this:
http://forum.nasaspaceflight.com/index.php?topic=35853.msg1311271#msg1311271

The difference is significant.

Both of them are worthy posts.
But while the first one is on-topic, the second one is off-Topic in the mission section.
Personally I will use "Report to mods" in the future in this case (second one).
« Last Edit: 01/06/2015 10:32 PM by MTom »

Offline meekGee

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Re: The SpaceX Scrubs thread
« Reply #12 on: 01/06/2015 10:29 PM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.
'Sactly.  This is a fundamental question, and doing it in the individual mission threads A) dilutes them, and B) leads to repetition.

I like this thread idea
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Offline Paul Adams

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Re: The SpaceX Scrubs thread
« Reply #13 on: 01/06/2015 10:39 PM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

Agreed, it will make it more efficient and enjoyable for those of us who prefer to read about progress  rather than doom and gloom and 'I told you so' posts.
It's all in the data.

Offline cartman

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Re: The SpaceX Scrubs thread
« Reply #14 on: 01/06/2015 10:42 PM »
I think i have completed the CASSIOPE, SES-8 and CRS-5 launch campaigns, how do you find the overall formatting etc?

Falcon 9 Flight 06 - CASSIOPE
  S) 2013-09-11, Several issues during tanking [3]
  S) 2013-09-12, Countdown abort [3]
  S) 2013-09-12, Countdown abort [3]
  S) 2013-09-12, Fired with issues [3]
  F) 2013-09-19, Successful static fire [3]
  L) 2013-09-29, Successful launch [4]

Falcon 9 Flight 07 - SES-8
  S) 2013-11-20, Unspecified issues, weather [7]
  F) 2013-11-21, Successful static fire [7] (the one with the excessive venting)
  C) 2013-11-25, 1st stage LOX tankage vent/pressure relief valve. [5]
  C) 2013-11-25, Ground electrical power supply. [5]
  C) 2013-11-25, 1st stage LOX tankage vent/pressure relief valve, premature release of the ECS duct. [5]
  C) 2013-11-28, Abort at ignition by low ramp of up thrust on Merlin 1D engines, T-0:01 [6]
  C) 2013-11-28, Oxygen contamination of ground side TEA-TEB T-1:00 [6]
  L) 2013-12-03, Successful launch [6]

Falcon 9 Flight 14 - SpaceX CRS-5
  S) 2014-12-17, Early engine shutdown during static fire [1]
  F) 2014-12-19, Successful static fire [1]
  C) 2015-01-05, Actuator drift on the Ζ actuator of the 2nd stage thrust vector control system, Τ-1:21 [2]

----Key----
S: Static Fire attempt
F: Successful static fire
C: Countdown attempt
L: Launch
« Last Edit: 01/06/2015 11:15 PM by cartman »

Offline llanitedave

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Re: The SpaceX Scrubs thread
« Reply #15 on: 01/06/2015 11:18 PM »
If you put the key at the top of the lists it might be more readable for people looking at the thread for the first time.
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Offline cartman

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Re: The SpaceX Scrubs thread
« Reply #16 on: 01/06/2015 11:49 PM »
If you put the key at the top of the lists it might be more readable for people looking at the thread for the first time.
You are right, i have done that, plus various formatting changes trying to make everything easier to read.
« Last Edit: 01/06/2015 11:49 PM by cartman »

Offline meekGee

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Re: The SpaceX Scrubs thread
« Reply #17 on: 01/07/2015 12:10 AM »
A) Very nice job on presentation. 

B) from the flights populated so far, #06 is the pattern we should be seeing - the hot fire finding any open issues, and then you go directly from "F" to "L".  Flight #07 is the exact opposite.

Which flight was it that had a seal on an internal pressurized tank blow?  The one that took them offline for a few months?

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Offline Brovane

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Re: The SpaceX Scrubs thread
« Reply #18 on: 01/07/2015 12:38 AM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

Personally for me I would like to know how SpaceX compares to historical scrub rates with the early launches of Atlas-V/Delta-IV.  Because of how much press SpaceX gets, any scrub seems to be under more scrutiny.  I then hear it from people that SpaceX is just not performing.   To me the data will tell more of the story.  What is also interesting is that it is hard to even sometimes define a delay etc.  I had one person telling me on another board because a SpaceX mission was originally proposed to lift off in February but was re-scheduled to a later date in the year for (whatever reason) that means the mission was late. 
"Look at that! If anybody ever said, "you'll be sitting in a spacecraft naked with a 134-pound backpack on your knees charging it", I'd have said "Aw, get serious". - John Young - Apollo-16

Offline nadreck

Re: The SpaceX Scrubs thread
« Reply #19 on: 01/07/2015 12:44 AM »
Details about scrubbed missions should discussed in the mission threads.

No!  I'm tired of reading all the wailing about scrubs on the mission threads.  IMO the mods should bulk-move any scrub-related complaining from mission threads over to this centralized thread, where those who care can discuss whether the latest boat in the keepout zone means that SpaceX is doomed doomed doomed or whatever.

It will make the mission threads more pleasant for the rest of us.

Personally for me I would like to know how SpaceX compares to historical scrub rates with the early launches of Atlas-V/Delta-IV.  Because of how much press SpaceX gets, any scrub seems to be under more scrutiny.  I then hear it from people that SpaceX is just not performing.   To me the data will tell more of the story.  What is also interesting is that it is hard to even sometimes define a delay etc.  I had one person telling me on another board because a SpaceX mission was originally proposed to lift off in February but was re-scheduled to a later date in the year for (whatever reason) that means the mission was late.
I think it would be fairer to compare them to something earlier in the Delta family, or the Titan II
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