NASASpaceFlight.com Forum
Commercial and US Government Launch Vehicles => NGIS (Formerly Orbital ATK) - Antares/Cygnus Section => Topic started by: John44 on 03/13/2006 10:15 am
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ST5 Mission
NASA's Space Technology 5 (ST5) Project is building and testing three smaller satellites called micro-satellites. These micro-sats will test and validate new technologies for future science missions.
- Launch Vehicle: Orbital Sciences Pegasus XL
- Launch Date: March 14, 2006
Launch Window: 8:57 a.m. to 10:19 a.m.
Target Drop Time: 9:02 a.m.
- ST5 Pre Launch Media Briefing (video)
- ST5 Mission Science Media Briefing (video)
http://www.space-multimedia.nl.eu.org/index.php?option=com_content&task=view&id=147&Itemid=2 (http://www.space-multimedia.nl.eu.org/index.php?option=com_content&task=view&id=147&Itemid=2)
website ST5 Mission :
http://www.nasa.gov/mission_pages/st-5/main/index.html (http://www.nasa.gov/mission_pages/st-5/main/index.html)
http://nmp.jpl.nasa.gov/st5/index.html (http://nmp.jpl.nasa.gov/st5/index.html)
NASA TV: 7:15 a.m. - 10:30 a.m. - ST5 Launch Coverage Begins (Launch Scheduled 9:02 a.m.) - Vandenberg (Mission Coverage)
All times Eastern (EDT).
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Nicely done John. I'll make this the live launch thread as it's a good opening post of reference.
Also note the pre-mission thread: http://forum.nasaspaceflight.com/forums/thread-view.asp?tid=1158&posts=21#M24920
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But no press kit as far as I can see? Does anyone have one?
I assume the planned drop point is the usual 36.0N 123.0W ?
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jcm - 13/3/2006 8:04 AMBut no press kit as far as I can see? Does anyone have one?I assume the planned drop point is the usual 36.0N 123.0W ?
Right here
http://www.nasa.gov/pdf/143648main_ST5PressKit.pdf
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Mission delayed 24 hrs to Wednesday due to predicted unfavorable weather conditions on Tuesday. 80% chance of favorable weather on Wednesday.
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DaveS - 13/3/2006 5:11 PM
Mission delayed 24 hrs to Wednesday due to predicted unfavorable weather conditions on Tuesday. 80% chance of favorable weather on Wednesday.
We can live with that.
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Thanks. I see the link on the NASA HQ site now. Could have sworn it wasn't there
when I looked this morning :-). Oh well...
Some nice things in the press kit. Spacecraft dimensions 0.53m dia 0.48m high stowed, mass 25 kg fully fuelled. Planned orbit 300 x 4500 km x 97 deg.
Drop at 12.2 km altitude.
Timeline: Drop+0:05 stage 1 burn, +1:17 stage 1 burnout at 55 km, +1:31 stage 2 burn at 72 km, +2:11 fairing sep at 115 km, +3:06 stage 2 burnout at 156 km,
+5:03 stage 3 burn at 283 km, +6:11 stage 3 burnout at 302 km, +9:31 ST5-FWD sep, +12:41 ST5-MID sep, +15:51 ST5-AFT sep.
GSFC has in-house prime contractor/integrator role, as far as I can tell.
Some things not in the press kit, but maybe someone here knows:
- Dry mass of spacecraft (or equally good, mass of propellant loaded)
- Drop point coords
- Nominal delta-v of stage 3 burn
- Span of spacecraft once boom is deployed (I guess about 1.0 meter)
- WHAT ARE THE THREE S/C GOING TO BE CALLED ONCE ON ORBIT? The only hint in the press kit is the
diagram calling them FWD, MID and AFT. But maybe they have serial numbers like S/N 1,2,3? and maybe they will be
given individual names (Larry, Curly, Moe? :-)). Any clues?
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jcm - 13/3/2006 5:36 PMThanks. I see the link on the NASA HQ site now. Could have sworn it wasn't therewhen I looked this morning :-). Oh well... Some nice things in the press kit. Spacecraft dimensions 0.53m dia 0.48m high stowed, mass 25 kg fully fuelled. Planned orbit 300 x 4500 km x 97 deg.Drop at 12.2 km altitude.Timeline: Drop+0:05 stage 1 burn, +1:17 stage 1 burnout at 55 km, +1:31 stage 2 burn at 72 km, +2:11 fairing sep at 115 km, +3:06 stage 2 burnout at 156 km,+5:03 stage 3 burn at 283 km, +6:11 stage 3 burnout at 302 km, +9:31 ST5-FWD sep, +12:41 ST5-MID sep, +15:51 ST5-AFT sep.GSFC has in-house prime contractor/integrator role, as far as I can tell.Some things not in the press kit, but maybe someone here knows: - Dry mass of spacecraft (or equally good, mass of propellant loaded) - Drop point coords - Nominal delta-v of stage 3 burn- Span of spacecraft once boom is deployed (I guess about 1.0 meter)- WHAT ARE THE THREE S/C GOING TO BE CALLED ONCE ON ORBIT? The only hint in the press kit is thediagram calling them FWD, MID and AFT. But maybe they have serial numbers like S/N 1,2,3? and maybe they will begiven individual names (Larry, Curly, Moe? :-)). Any clues?
56 lbs
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GN2 is the propellant
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NASA'S ST5 LAUNCH POSTPONED DUE TO WEATHER FORECAST
Predicted weather conditions postponed Tuesday's scheduled launch of
NASA's Space Technology 5 (ST5) spacecraft. It will launch Wednesday,
March 15, at 9:02 a.m. EST.
The forecast improves on Wednesday with only a 20 percent chance of
not having acceptable weather.
ST5 launch coverage on NASA TV begins Wednesday at 7:30 a.m. EST. NASA
TV's Public
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| 56 lbs
Are you sure? , 56 lbs is the fully fuelled mass according to the sources I've seen, not the dry mass.
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jcm - 14/3/2006 8:01 AM| 56 lbsAre you sure? , 56 lbs is the fully fuelled mass according to the sources I've seen, not the dry mass.
For the size of the spacecraft, how much GN2 do you think they can compress to really make a difference? There isn't a "dry" or "wet" mass, since it uses GN2.
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Live Vandenberg video feed ST5 mission (realplayer): http://www.space-multimedia.nl.eu.org/stream/Vandenberg_Select_TV.php
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Better yet
Actual countdown status and events with 4 video feeds
http://countdown.ksc.nasa.gov/elv/index-vafb.html
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Jim - 14/3/2006 11:26 AM
jcm - 14/3/2006 8:01 AM| 56 lbsAre you sure? , 56 lbs is the fully fuelled mass according to the sources I've seen, not the dry mass.
For the size of the spacecraft, how much GN2 do you think they can compress to really make a difference? There isn't a "dry" or "wet" mass, since it uses GN2.
Ahh, good point. Wasn't thinking straight.
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Everything looking good for a a launch today. L-1011 take-off is planned for 8:04 am EST, 1304 UTC. Weather is predicted to be 100% go at Pegasus XL drop time.
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Trying to watch all the feeds on
http://countdown.ksc.nasa.gov/elv/index-vafb.html
plus NASA select
Is there anyway of opening more than one Realplayer window?
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Pegasus drop-4 minutes.
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Keep on it Dave. I've got no feed here, for some reason.
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Chris Bergin - 15/3/2006 8:35 AMKeep on it Dave. I've got no feed here, for some reason.
Are you on the countdown page?
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L-1 minute
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Fin batts activated
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stuck fin, abort
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I'm getting a faulty page on the countdown link :(
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Looking at a recycle or scrub
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Launch coverage is live on NASA TV like any NASA launches.
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DaveS - 15/3/2006 8:42 AMLaunch coverage is live on NASA TV like any NASA launches.
Not everybody gets it at home or the office
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DaveS - 15/3/2006 8:42 AM
Launch coverage is live on NASA TV like any NASA launches.
Thanks, as that countdown page was broken for me.
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It's availabe through the Internet: http://www.nasa.gov/multimedia/nasatv/index.html
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DaveS - 15/3/2006 8:46 AMIt's availabe through the Internet: http://www.nasa.gov/multimedia/nasatv/index.html
or here
http://countdown.ksc.nasa.gov/elv/
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It's a scrub for today. The L1011 with Pegasus and ST5 is returning to Vandenberg as the fin battery on the Pegasus has expired. No idea on how long the delay will be.
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Minimum 48 hour scrub - George Diller, NASA TV.
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The launch of NASA's ST5 spacecraft aboard an Orbital Sciences Pegasus
XL rocket was called off today when a locking pin in the rocket's
flight control service mechanism did not retract just prior to
launch. Orbital Sciences Corporation and NASA engineers will diagnose
and correct the problem. A new launch date will be established at the
earliest opportunity pending resolution of the issue, the
availability of the Western Range, and acceptable weather conditions
at the Vandenberg Air Force Base, Calif., launch site. The delay will
be at least 48 hours.
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A battery???
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Avron - 15/3/2006 11:22 PMA battery???
Don't understand the comment.
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Jim - 16/3/2006 7:07 AM
Avron - 15/3/2006 11:22 PMA battery???
Don't understand the comment.
I understand that the power to remove the pins is supplied by a battey that has "limited" life, My question, was the battery not able to provide the power to remove the pin? Maybe a faulty battery or one that had become discharged.
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March 21 ST5 Launch
Launch Window: 5:57:31 a.m. to 7:19:50 a.m. PST
8:57:31 a.m. to 10:19:50 a.m. EST
Target Drop Time: 6:02 a.m. PST/ 9:02 a.m. EST
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Avron - 16/3/2006 9:30 PMJim - 16/3/2006 7:07 AMAvron - 15/3/2006 11:22 PMA battery???
Don't understand the comment.
I understand that the power to remove the pins is supplied by a battey that has "limited" life, My question, was the battery not able to provide the power to remove the pin? Maybe a faulty battery or one that had become discharged.
The pin was jammed , batteries "issue" was unrelated. The batteries, which drive the fins, are thermal batteries. They are high power but with short lives. They are used because a hydraulic system would be heavier. Time just ran out on the battery life.
Launch is now schedule for 3/22
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Spacex use of range assets is delaying ST-5
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SpaceX's use of _Vandenberg_ range assets, or is there a conflict at Kwajalein for tracking capabilities?
I didn't think SpaceX was doing much at Vandenberg since the whole Lockheed flare-up last summer.
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Western Range, Pacific Missile Range