yee@trident.arc.nasa.gov (Peter E. Yee) (04/25/89)
KSC SPACE SHUTTLE PROCESSING REPORT - TUESDAY, APRIL 25, 1989
STS-30 - ATLANTIS (0V 104) - PAD 39-B
The STS-30 launch countdown began on time today at 8 a.m.
EDT with the countdown clock ticking at the T minus 43 hour mark.
This countdown includes 35 hours and 24 minutes of built-in hold
time.
Workers are continuing with closing out the orbiter's aft
compartment this morning. The aft compartment flight doors are
being installed this morning. Closing out the aft includes
performing final inspections, removing platforms and removing
protective covers.
Today, the launch team is verifing the operation of the
orbiter's data processing system and backup flight control
system. Flight software stored in the orbiter's twin memory banks
will be reviewed, computer-controlled display systems will be
activated and the backup flight system general purpose computer
will be loaded.
Later today, workers will begin preparations on the main
engines to ready them for cryogenic loading. Orbiter navigation
aids will be turned on and tested and the Inertial Measurement
Units will be activated.
The countdown will enter the first of seven built-in holds
at midnight tonight at the T-27 hour mark. The clock will hold
for eight hours and will resume at 8 a.m. tomorrow. Activities
will begin to load liquid oxygen and liquid hydrogen reactants
into the orbiter's onboard storage tanks. These propellants are
used by the orbiter's fuel cells to produce electricity for the
orbiter during flight.
Payload closeouts are nearing completion. The orbiter's
payload bay doors are scheduled to be closed for flight by 11
p.m. tonight. Final payload software was loaded for flight and
solar panel covers were removed yesterday. At 7:24 a.m. today,
Magellan's internal clock was started for the mission.
Weather forecasts are favorable for the time of launch.
Only a 30 percent chance of violating weather criteria is
predicted. Winds are forecast to be coming from the east to
southeast from 10 to 15 knots. A single layer of scattered clouds
is predicted from 4,000 to 8,000 feet covering 50 percent of the
sky.
Launch of mission STS-30 is scheduled for April 28 at 2:24
p.m. (EDT) with a window of 23 minutes.
The five-member flight crew is scheduled to arrive today at
the Shuttle Landing Facility in T-38 jets at 5:30 p.m.barkley@unc.cs.unc.edu (Matthew Barkley) (04/27/89)
In article <24442@ames.arc.nasa.gov>, yee@trident.arc.nasa.gov (Peter E. Yee) writes: > > KSC SPACE SHUTTLE PROCESSING REPORT - TUESDAY, APRIL 25, 1989 > > The STS-30 launch countdown began on time today at 8 a.m. > EDT with the countdown clock ticking at the T minus 43 hour mark. > ... includes 35 hours and 24 minutes of built-in hold time. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ What a great idea for my next programming project! "Well, yes, I said 43 days, and it looks like the project is already a week late. But really, it's not. You see, the original schedule included 35 days of hold. I must have forgotten to tell you that." :-) :-) :-) Matt Barkley barkley@cs.unc.edu Any opinions expressed are not necessarily shared by anyone else, and may not even be my own. How an organization can have an opinion is beyond me.