From: yee@trident.arc.nasa.gov (Peter E. Yee)
Subject: NASA Daily News for 09/01/92 (Forwarded)
Apparently-To: sci-space-news@ames.arc.nasa.gov
Followup-To: sci.space
Organization: NASA Ames Research Center, Moffett Field, CA
Date: Thu, 3 Sep 1992 19:45:42 GMT

	Daily                News
Tuesday, September 1, 1992  24-hour audio service at 202/755-1788

 % STS-47 Flight Readiness Review underway today in Florida;
 % Extreme Ultraviolet Explorer investigators announce new findings;
 % TOPEX/Poseidon spacecraft returns from "safe mode," all elements fine;
 % Goddard flight controllers report Hubble Telescope is back on line;
 % Goddard also reports that UARS instrument problem persists;
 % TV replay of World Space Congress opening ceremony today at 1:00 pm.

The Space Flight management Flight Readiness Review for the upcoming
STS-47 Spacelab-Japan mission is underway today at the Kennedy Space
Center.  Following the review, the management team will issue an
official launch date for the mission currently holding steady for a
launch on September 12.  The mission is an international science
mission with a crew of seven, including a Japanese payload specialist.
Endeavour's payload bay is outfitted with the Spacelab long module for
this planned seven-day scientific exploration flight.

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

Extreme Ultraviolet Explorer principal investigators Stuart Bowyer and
Roger Malina, both University of California at Berkeley, yesterday
announced to the attendees of the World Space Congress that their
instruments have detected an object outside of the Milky Way galaxy
which is emitting extreme ultraviolet light.  It had been thought that
the interstellar dust and gas, which is the prevalent form of matter
throughout the Milky Way, would block observations of UV objects beyond
the galaxy's confines because of the extreme opaqueness of this matter
to ultraviolet light.

The EUVE team also reported their finding of an extreme ultraviolet
corona around a star much like the Sun at a distance of some 16 light
years from Earth.  The EUVE findings give astronomers yet another tool
to probe the universe and represent one of the last of the unexplored
spectral regions open to astronomers.  The EUVE spacecraft is now six
weeks into its planned six-month- long all-sky extreme ultraviolet
survey and is performing nominally.  All instruments are reported to be
performing at or above their expected levels.  The scientific operation
of the spacecraft is being performed from the UC Berkeley campus and
employs a novel teaching approach wherein university undergraduates are
getting hands-on educational experience in the daily operations.

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

Jet Propulsion Laboratory flight controllers report the TOPEX/Poseidon
spacecraft has fully recovered from the safe hold it entered into last
Thursday.  The satellite is performing nominally and is fully
operational.  The NASA altimeter is presently in its track mode and
obtaining good data.  (Yesterday, Daily News inaccurately reported that
control of the spacecraft was from the Goddard Space Flight Center.)

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

Goddard controllers report the Hubble Space Telescope has returned to
normal science operations following the recent series of safe hold
events.  On July 30 a chain of events caused the Hubble to enter a
series of safe holds.  The analysis team has concluded that an
incorrect ephemeris table and a series of onboard software instruction
execution errors were the cause of the spacecraft's entry into safe
mode.  Those science observations which were affected by the
spacecraft's outage will be rescheduled.

Goddard controllers also report that their attempts to restart the
chopper wheel motor for the Upper Atmosphere Research Satellite's
Improved Stratospheric and Mesospheric Sounder instrument have not been
successful.  The chopper wheel breaks incoming light into bands so the
instrument can analyze it.  The instrument measures ozone, nitrogen
compounds and other gasses important in the ozone-destruction cycle.
These measurements, though, are also being made by other UARS
instruments, so the loss of the sounder instrument data is a minimal
impact.

  
Here's the broadcast schedule for Public Affairs events on NASA Select
TV.  Note that all events and times may change without notice, and that
all times listed are Eastern.  Live indicates a program is transmitted
live.

Tuesday, September 1, 1992
  12:00 pm  Yesterday's highlights from the World Space Congress, being held
            this week in Washington, D.C.
   1:00 pm  Replay of the World Space Congress opening ceremony featuring Vice
            President Dan Quayle and NASA Administrator Daniel Goldin.
   4:00 pm  NASA Today and subsequent programming repeats.
   8:00 pm  NASA Today and subsequent programming repeats.
  12:00 am  NASA Today and subsequent programming repeats.
  
This report is filed daily at noon, Monday through Friday.  It is a
service of NASA's Office of Public Affairs.  The editor is Charles
Redmond, 202/453-8425 or CREDMOND on NASAmail.  NASA Select TV is
carried on GE Satcom F2R, transponder 13, C-Band, 72 degrees West
Longitude, transponder frequency is 3960 MegaHertz, audio subcarrier is
6.8 MHz, polarization is vertical.
Newsgroups: sci.space.news