-
#1180
by
Shuttle Scapegoat
on 25 Jul, 2008 23:02
-
This may be a strange question, but what is the reasoning behind the handover to JSC at lift-off? I understand the handoff, but was it not considered to keep both LCC and MCC at KSC? I'm thinking there's an obvious reasons, but can't think of it.
After all, don't Atlas and Delta have both in the same building?
-
#1181
by
Jorge
on 25 Jul, 2008 23:21
-
This may be a strange question, but what is the reasoning behind the handover to JSC at lift-off? I understand the handoff, but was it not considered to keep both LCC and MCC at KSC? I'm thinking there's an obvious reasons, but can't think of it.
Largely chronicled in
Suddenly, Tomorrow Came. NASA wanted Mission Control in the same center that was doing manned spacecraft engineering, and they wanted manned spacecraft engineering to be near a large metropolitan area to be able to draw upon an educated work force. Central Florida, at the time the decision was made, simply didn't have that. Orlando was (and is) the largest city in the area, and in those pre-Disney days it was a pretty small town.
Yes, there were political considerations in site selection as well, but those came into play after the decision that MSC would be built somewhere other than KSC. And that decision was fairly well justified from a technical standpoint, IMO.
After all, don't Atlas and Delta have both in the same building?
For Atlas and Delta, the "mission" ends when the payload separates. It's so short that there's no point in separating launch control from mission control.
-
#1182
by
Shuttle Scapegoat
on 25 Jul, 2008 23:34
-
Thank you Jorge!
-
#1183
by
Jim
on 26 Jul, 2008 13:15
-
This may be a strange question, but what is the reasoning behind the handover to JSC at lift-off? I understand the handoff, but was it not considered to keep both LCC and MCC at KSC? I'm thinking there's an obvious reasons, but can't think of it.
After all, don't Atlas and Delta have both in the same building?
For Atlas and Delta, the "mission" ends when the payload separates. It's so short that there's no point in separating launch control from mission control.
More clarification.
1. NASA manned flight is the non standard way of doing thing. The Russians hand over from the LCC to MCC at spacecraft separation.
2. Launch control is much different from mission control. There really isn't much syngerism
3. The ELV LCCs don't have any control of the launch vehicle during flight, they just monitor. Additionally, there is a separate "control" center at the cape for management and post launch monitoring, it is at Hangar AE and contains the MDC (mission director's center), LVDC (launch vehicle data center) and telemetry station.
NASA has one on each coast. They have been used to support the bulk of all NASA and commercial and some DOD launches. Delta-IV and Atlas V has added some of the MDC functions to their LCC's but still use Hangar AE
4. There are spacecraft control centers all over the country. JPL, APL, GSFC, LASP, some colleges, most of the comsat builders, comsat users, DOD, Sunnyvale, Colorado Springs, Aurora, CO, etc.
-
#1184
by
jeff122670
on 27 Jul, 2008 22:23
-
does anyone know of a document that outlines the procedures for the Ground Launch Sequencer (GLS).
i remember reading on here SOMEWHERE about the GLS functions regarding holds and aborts as well as resuming countdowns.
is there a specific operators handbook or a document that details the functions and responsibilities of this console position?
thanks!!!
jeff
-
#1185
by
mkirk
on 28 Jul, 2008 00:32
-
does anyone know of a document that outlines the procedures for the Ground Launch Sequencer (GLS).
i remember reading on here SOMEWHERE about the GLS functions regarding holds and aborts as well as resuming countdowns.
is there a specific operators handbook or a document that details the functions and responsibilities of this console position?
thanks!!!
jeff
I promised to provide an older copy of the GLSDD (ground launch sequencer description document) a while back - I will send it to Chris tomorrow so he can post it. This is not a "reader friendly document but it does have the relevant information. I'm not too familiar with KSC's version of the Console Handbooks so I will leave it to the forum's former CGLS guy ("jcopella" I believe) to fill in the rest of the details.
Mark Kirkman
-
#1186
by
jeff122670
on 29 Jul, 2008 01:02
-
Thanks Mark!!
Jeff
-
#1187
by
Antares
on 29 Jul, 2008 01:29
-
It's so short that there's no point in separating launch control from mission control.
Tell that to someone waiting through a 6+ hr coast out to GEO.
-
#1188
by
Endeavour118
on 29 Jul, 2008 18:59
-
How come all the HST-s missions never launched in the daylight?
-
#1189
by
Jim
on 29 Jul, 2008 19:06
-
Move to shuttle Q&A
-
#1190
by
Jorge
on 29 Jul, 2008 20:31
-
How come all the HST-s missions never launched in the daylight?
Luck of the draw, more or less. The HST launch window moves about 30 minutes earlier each day and there are no constraints that would prevent a daylight launch.
-
#1191
by
Endeavour118
on 30 Jul, 2008 06:27
-
how come the launch times for sts-71 and 91 were in the day? Was sts-74 a day launch cause it looked lie it was @ sunrise i know the rule was sunrise+15 minutes and how come sts-76,79,81,84,86,and 89 were night launches?
-
#1192
by
ChrisGebhardt
on 30 Jul, 2008 06:53
-
how come the launch times for sts-71 and 91 were in the day? Was sts-74 a day launch cause it looked lie it was @ sunrise i know the rule was sunrise+15 minutes and how come sts-76,79,81,84,86,and 89 were night launches?
STS-71 and STS-91 were both missions to MIR so their launch times were governed by the rotation of Earth underneath MIR's orbit just like all ISS mission launch times are governed by the rotation of the Earth into the orbital corridor of the ISS.
If all the other launches you mentioned were the missions to MIR then their launch times were determined by Earth's rotation in relation to MIR's orbit. In other words... whenever MIR's orbital ground track passed over the launch pads at KSC is when the Shuttle's where launched. Therefore, they had no choice as to the time of launch.
For STS-74, Atlantis lifted off 45minutes after sunrise. And the nighttime launch rule is Sunrise -15minuts and Sunset +15minutes.
-
#1193
by
Endeavour118
on 30 Jul, 2008 23:39
-
how come the launch times for sts-71 and 91 were in the day? Was sts-74 a day launch cause it looked lie it was @ sunrise i know the rule was sunrise+15 minutes and how come sts-76,79,81,84,86,and 89 were night launches?
STS-71 and STS-91 were both missions to MIR so their launch times were governed by the rotation of Earth underneath MIR's orbit just like all ISS mission launch times are governed by the rotation of the Earth into the orbital corridor of the ISS.
If all the other launches you mentioned were the missions to MIR then their launch times were determined by Earth's rotation in relation to MIR's orbit. In other words... whenever MIR's orbital ground track passed over the launch pads at KSC is when the Shuttle's where launched. Therefore, they had no choice as to the time of launch.
For STS-74, Atlantis lifted off 45minutes after sunrise. And the nighttime launch rule is Sunrise -15minuts and Sunset +15minutes.
so basically launch times evolves around earths rotation? and if the shuttle were to launch to the ISS would it be possible?
-
#1194
by
Jorge
on 31 Jul, 2008 00:16
-
how come the launch times for sts-71 and 91 were in the day? Was sts-74 a day launch cause it looked lie it was @ sunrise i know the rule was sunrise+15 minutes and how come sts-76,79,81,84,86,and 89 were night launches?
STS-71 and STS-91 were both missions to MIR so their launch times were governed by the rotation of Earth underneath MIR's orbit just like all ISS mission launch times are governed by the rotation of the Earth into the orbital corridor of the ISS.
If all the other launches you mentioned were the missions to MIR then their launch times were determined by Earth's rotation in relation to MIR's orbit. In other words... whenever MIR's orbital ground track passed over the launch pads at KSC is when the Shuttle's where launched. Therefore, they had no choice as to the time of launch.
For STS-74, Atlantis lifted off 45minutes after sunrise. And the nighttime launch rule is Sunrise -15minuts and Sunset +15minutes.
so basically launch times evolves around earths rotation?
Half right. It is when Earth's rotation lines up the launch site with the target orbital plane.
and if the shuttle were to launch to the ISS would it be possible?
What do you mean by "it"?
-
#1195
by
capcomespace
on 31 Jul, 2008 21:09
-
Hi everybody, I saw on any STS mission in year 2000 what TSM of each MLP was "graffitied" by the name of MLP.
MLP 2 on STS 103
MLP 3 on STS 99 (previously on STS 32 and 78)
MLP 1 on STS 101, 97, 108, 111 and 107.
Do you know who have painted this grafiti on TSM ? Worker, ingineers ?
-
#1196
by
Zero-G
on 05 Aug, 2008 23:58
-
Shuttle autoland system flight tests?
I know that the Shuttle's autoland system was flight tested on STS-3 from the normal engage altitude of 10'000 ft down to approx. 140 ft, when the commander, Jack Lousma, took over to perform the touchdown manually.
Had there been other flight tests of the autoland system? (E.g. on other missions or on some of the five ALT free-flights with Enterprise?)
If so, what were the parameters of these tests (altitude for autoland engage and for manual takeover, TD distances from threshold, TD speeds, rate of descent at TD, etc.)?
Had the autoland system ever been flight tested all the way to touchdown on any mission, actually?
-
#1197
by
Jim
on 06 Aug, 2008 00:32
-
Shuttle autoland system flight tests?
I know that the Shuttle's autoland system was flight tested on STS-3 from the normal engage altitude of 10'000 ft down to approx. 140 ft, when the commander, Jack Lousma, took over to perform the touchdown manually.
Had there been other flight tests of the autoland system? (E.g. on other missions or on some of the five ALT free-flights with Enterprise?)
If so, what were the parameters of these tests (altitude for autoland engage and for manual takeover, TD distances from threshold, TD speeds, rate of descent at TD, etc.)?
Had the autoland system ever been flight tested all the way to touchdown on any mission, actually?
nope
-
#1198
by
Generacy
on 06 Aug, 2008 21:00
-
Is the shuttle approach, docking, and undocking trajectories with respect to station published anywhere public?
-
#1199
by
Jorge
on 06 Aug, 2008 21:20
-
