Headline News
Internal Communications Branch (POC) NASA HQ

	
Tuesday, October 9, 1990	Audio Service: 202/755-1788
	

This is NASA Headline News for Tuesday, October 9, 1990

The crew of STS-41 had a very successful weekend starting with 
their launch just a few minutes into their window on Saturday, and 
continuing with the deployment of the Ulysses solar probe later that 
day.  The crew spent yesterday working on cabin experiments and 
taking photographs of Tropical Storm Klaus and other Earth features.  
Today's agenda has the crew closing up their experiments and 
preparing for entry tomorrow morning.  Discovery is set for landing 
tomorrow morning at 9:57 am EDT at Edwards Air Force Base.  
Weather for Edwards is predicted to be fine for landing.

  * * * * * * * * * * * * * * * * * * * * * * * * * *  

At the Kennedy Space Center, Columbia is set to be rolled back to 
the Vehicle Assembly Building this morning.  This rollback is based on 
Tropical Storm Klaus' trajectory representing a potential threat to 
Florida's Space Coast.  Atlantis, still in the VAB, is currently set for roll 
out to launch pad 39-A, possibly this Thursday.  Columbia could be 
rolled back out to Pad 39-B as early as Friday, with a tanking test 
possibly next week.

The investigation into Atlantis' aft compartment beam incident 
last week continues, but so far indications are that the damage is very 
minor.  A broken purge duct and a small section of a manifold relief line 
in the main propulsion system will be replaced.

  * * * * * * * * * * * * * * * * * * * * * * * * * *  

Galileo is now about 32 million miles from Earth and closing at a 
rate of more than 52,187 miles per hour.  The trajectory correction 
maneuver, for fine-tuning the spacecraft's incoming trajectory to Earth, 
is scheduled to take place today.  This will change Galileo's velocity by 
about 1.1 mph.  Spacecraft health continues to be excellent.

  * * * * * * * * * * * * * * * * * * * * * * * * * *  

On Magellan, one of the high power transmitters experienced a 
spurious shutdown on Sunday, causing the normal fault protection 
procedures to operate.  Thirty-seven minutes of radar mapping data 
was lost while the ground system reconfigured.  The shutdown occurred 
in the B-side of the traveling wave tube amplifier, a system which has 
experienced spurious shutoffs during the earlier cruise mode.  An 
investigation of the problem is being conducted.

  * * * * * * * * * * * * * * * * * * * * * * * * * *  

Ulysses is on its way to Jupiter at a velocity of more than 34,000 
mph.  This is the fastest departure speed of any craft ever to have left 
Earth.  On Sunday, Ulysses deployed its radial boom, slowing the craft's 
revolution from 6.8 to 4.7 revolutions per minute - as planned.  The next 
scheduled event is the pointing of Ulysses' high gain antenna towards 
Earth, set to occur later this week.  A trajectory correction maneuver is 
also planned for Monday, Oct. 15.

	
Here's the broadcast schedule for Public Affairs events on NASA Select 
TV.  All times are Eastern.  **indicates a live program.

Tuesday, 10/9/90
	2:07 pm	**Earth views and SSBUV operations from Discovery.
	6:00 pm	Replay of STS-41 day 4 activities from JSC.
	6:30 pm	**Change-of-Shift briefing from JSC.

Wednesday, 10/10/90
	2:30 am	**Change of Shift briefing from JSC.
	8:12 am	**Begin landing coverage from DFRF.
	9:57 am	**Expected landing of Discovery at DFRF.
	11:30 am	**Post-landing briefing from DFRF.
	1:15 pm	**Magellan at Venus status briefing from JPL.

	

All events and times may change without notice.  This report is filed 
daily, Monday through Friday, at 12:00 pm, EDT.  It is a service of 
Internal Communications Branch at NASA Headquarters.  Contact:  
CREDMOND on NASAmail or at 202/453-8425.
	

NASA Select TV:  Satcom F2R, Transponder 13, C-Band, 72 degrees 
West Longitude, Audio 6.8, Frequency 3960 MHz.