phil@rice.edu (William LeFebvre) (04/06/89)
Launch windows. We got launch windows. The rumors I heard were true. Here are the opening and closing times for the launch windows for the first seven available days (all times are CDT): Date Open Close Duration (minutes) 4/28 13:24 13:42 18 4/29 13:18 13:43 25 4/30 13:13 13:44 31 5/1 13:07 13:45 38 5/2 13:01 13:45 44 5/3 12:54 13:46 52 5/4 12:48 13:47 59 Notice that this puts the launch in the early afternoon. The constraints are really strange on this one. They have to launch very late because of Magellan, and the window closing times are constrained by sunset at the trans-atlantic abort sites. I have a chart that lists the window opening and closing times through 5/28. I'll post more if there is interest. The scedule calls for Magellan to be deployed (if memory serves me correctly) during orbit 5. Landing is scheduled for MET 4 days and 56 minutes, so the landing will also be in the early afternoon. This is probably the last flight that I'll be able to get "inside" information for, so enjoy it while you can. William LeFebvre Department of Computer Science Rice University <phil@Rice.edu>
sjeyasin@zaphod.axion.bt.co.uk (swaraj jeyasingh) (04/10/89)
From article <3030@kalliope.rice.edu>, by phil@rice.edu (William LeFebvre): > Launch windows. We got launch windows. > > The rumors I heard were true. Here are the opening and closing times for > the launch windows for the first seven available days (all times are CDT): > ^^^^ ? Can you tell me what the time zones are across the US. I know there are five but not sure which one KSC is in. Most Shuttle launch times seem to be marked as EST (eastern standard time ??) (or was it EDT !) so how come CDT here. Also, I would be interested in the other launch windows if you don't mind typing in the lot. Thanks. Swaraj Jeyasingh sjeyasingh@axion.bt.co.uk G24/SSTF British Telecom Research Labs Martlesham Heath, IPSWICH IP5 7RE UK
phil@titan.rice.edu (William LeFebvre) (04/11/89)
In article <1333@zaphod.axion.bt.co.uk> sjeyasin@zaphod.axion.bt.co.uk writes: >From article <3030@kalliope.rice.edu>, by phil@rice.edu (William LeFebvre): >> Launch windows. We got launch windows. >> (all times are CDT): >Can you tell me what the time zones are across the US. I know there are five >but not sure which one KSC is in. Most Shuttle launch times seem to be marked >as EST (eastern standard time ??) (or was it EDT !) so how come CDT here. Oh. Sorry. I tend to forget about overseas readers. KSC is in the Eastern time zone, but the Johnson Space Center (Mission Control) along with myself am in the Central zone. The charts I was working from were JSC charts, so the times were GMT and Central. The zones in the continental U.S., from east to west, are Eastern, Central, Mountain, and Pacific. Central is one hour west of Eastern. Add on top of that the fact that we are now in daylight savings time (thus the D in "CDT")...... To go from GMT to CDT (that's DAYLIGHT time), subtract 5 hours. So the 4/28 launch window opens at 18:24 GMT. >Also, I would be interested in the other launch windows if you don't mind >typing in the lot. If I have some time. I have about a third of it typed in now. But the whoe chart is quite a bit: 30 days worth. And the functions are not linear, so I can't just write a program to do it (in fact, they're probably not even polynomial). William LeFebvre Department of Computer Science Rice University <phil@Rice.edu>