Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from beak.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Mon, 25 Jun 1990 01:57:40 -0400 (EDT) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Mon, 25 Jun 1990 01:57:09 -0400 (EDT) Subject: SPACE Digest V11 #569 SPACE Digest Volume 11 : Issue 569 Today's Topics: News From OSCAR-11 08Jun90 NASA Headline News for 06/22/90 (Forwarded) Payload Status for 06/22/90 (Forwarded) Payload Summary for 06/22/90 (Forwarded) Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: 23 Jun 90 15:09:04 GMT From: att!tsdiag!ka2qhd!kd2bd@ucbvax.Berkeley.EDU (John Magliacane) Subject: News From OSCAR-11 08Jun90 * UOSAT-2 OBC STATUS INFORMATION * DIARY OPERATING SYSTEM V3.1 SMH MLJM MSH Today's date is 23 /6 /90 (Saturday) Time is 14 :22 :38 UTC Auto Mode is selected Spin Period is - 288 Z Mag firings = 0 + SPIN firings = 27 - SPIN firings = 12 SEU count = 361 RAM WASH pointer at C80E WOD commenced 23 /6 /90 at 0 :0 :8 with channels 10 ,11 ,19 ,29 , Last cmnd was 109 to 0 , 0 Attitude control initiated, mode 1 Digitalker active **** UoSAT-OSCAR-11 BULLETIN - 217 08 June 1990 **** UoSAT MISSION CONTROL CENTRE University of Surrey, Guildford, Surrey, GU2 5XH, England ** UoSAT-OSCAR-14 ** A new version of the PCE Housekeeping Integration Task (HIT) has been uploaded to the spycecraft. In addition to providing telemetry and file broadcast, this version also incorporates digipeating. The digipeat callsign is UOSAT3 (SSID 0). All binary data (e.g. telemetry & broadcast packets) will now be sent from UOSAT3-11 to allow filtering with the LCALLS command. ** CPE DETECTS SOLAR FLARE ** The Cosmic Particle Experiment (CPE) on UO-14 has been monitoring the LEO radiation environment since late April. On Mondqy 21st May, at just before Midnight, the CPE picked up enhanced activity at high latitudes, in which the particle count rate grew by two orders magnitude, peaking after about 8 hours - indicating that a solar flare had occurred. There was then a slow decay until about 22:00 hours on Thursday 24th, when there was a very sudden increase in auroral region activity - again about two orders of magnitude. This activity decreased rather more slowly, with further enhancements occurring on the evening of the 26th May and the morning of the 28th. Since then, the activity has decreased, reaching its 'normal' level by 1st June. Data from this experi- ment are collected and analysed at UoSAT Mission Control before being passed on to RAE Farnborough. ** 5th AMSAT-UK/UoSAT Colloquium ** The 5th AMSAT-UK/UoSAT Colloquium is taking place at the University of Surrey, England from July 26th - 29th 1990. As usual, there will be a varied programme of lectures for both the beginner and the experienced operator. Booking forms must be returned by 1st July 1990. Further details are available from Ron Broadbent, G3AAJ at AMSAT-UK. ** AO-13 ** The present transponder schedule for AO-13 is as follows: Mode-B : MA 000 to MA 100 Mode-JL : MA 100 to MA 125 Mode-LS : MA 125 to MA 130 (Mode S Beacon only) Mode-S : MA 130 to MA 135 Mode-BS : MA 135 to MA 140 Mode-B : MA 140 to MA 256 Omnis : MA 220 to MA 040 The best estimate of the current attitude is: BLON = 179 and BLAT = -2.1 for 04 Jun 90 Cross mode B and S QSOs are possible during MA 135 to 140. ** AO-10 ** AMSAT-OSCAR-10 appears to be receiving sufficient solar panel illumination to support Mode-B transponder operations, therefore, the transponder is available for general use whenever AO-10 is in view at your location. Please DO NOT use the transponder if the signals are FMing. The current estimate of AO-10's attitude is LON 24 deg LAT -9 deg. ** BID ** Please use BID $UOSAT.217 when copying to the packet network. -- AMPR : KD2BD @ NN2Z (Neptune, NJ) UUCP : ucbvax!rutgers!petsd!tsdiag!ka2qhd!kd2bd "For every problem, there is one solution which is simple, neat and wrong." -- H.L. Mencken ------------------------------ Date: 25 Jun 90 05:13:44 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: NASA Headline News for 06/22/90 (Forwarded) ---------------------------------------------------------- Friday, June 22, 1990 Audio Service: 202/755-1788 ----------------------------------------------------------- This is NASA Headline News for Friday, June 22...... The Kennedy Space Center engineers completed another traditional mission milestone yesterday. The Countdown Demonstration Test for the Space Shuttle Atlantis successfully concluded on schedule. The astronauts were on board the Atlantis as they proceded through the last three hours of the countdown. They left for Houston yesterday afternoon following the mission debriefing. A helium signature leak check of the main propulsion system and the three main engines of the Atlantis will conclude today. The hypergolic storable propellants will be loaded onboard the Space Shuttle orbital maneuvering system pod and the attitude control system this weekend. Next week, the supercold liquid hydrogen rocket fuel will be loaded into the ship's external tank to make sure no leaks are present. This will also verify that the leak that occurred to hold the launch of STS-35 is unique to the Space Shuttle Columbia. The Flight Readiness Review is scheduled for next Thursday and Friday. A new launch date is scheduled to be established at that time. ******** Preliminary reports from the Galileo's science observations during its February Venus flyby will be featured on the Committee for Space Research Conference agenda next week in the Netherlands. The Galileo spacecraft is now 95 million miles from Earth. Since launch, Galileo has logged almost 422 million miles in solar orbit. It is currently traveling at over 55,000 miles per hour. Operations are now directed by a new software sequence transmitted June 8. ******** The Jet Propulsion Laboratory scientists and engineers began an extensive period of field testing this week of a semi-autonomous navigation system on a computer-operated robotic vehicle prototype. It is being considered for possible use in future planetary explorations. Developing new technologies, including a new generation of planetary rovers, is seen as critical to the success and cost effectiveness of the Space Exploration Initiative. ******** ----------------------------------------------------------------- Here's the broadcast schedule for Public Affairs events on NASA Select TV. All times are Eastern. Friday, June 22...... 1:00 P.M. The two-minute planetary rover video news release. 11:00 A.M. Ulysses space craft briefing and showing at Kennedy Space Center. Tuesday, June 26..... 12:00 - 2:00 P.M. NASA Video Programs. ----------------------------------------------------------------- All events and times are subject to change without notice. These reports are filed daily, Monday through Friday, at 12:00 P.M. EDT. This is a service of the Internal Communications Branch, NASA HQ. Contact: JSTANHOPE or 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. ----------------------------------------------------------------- ------------------------------ Date: 25 Jun 90 05:15:24 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Status for 06/22/90 (Forwarded) Daily Status/KSC Payload Management and Operations 06-22-90. - STS-35 ASTRO-1/BBXRT (at OPF) - Preps for BBXRT liquid argon servicing will be performed today. At the O&C, GSE preps for Freon loop servicing are active. - STS-37 GRO (at PHSF) - Propellant system leak and pressure checks will be performed today. - STS-40 SLS-1 (at O&C) - CITE interface testing continues. - STS-41 Ulysses (at Hanger AO) - The RTG compatibility test will be worked today. At ESA- 60, the PAM-S systems test is active. At the VPF, landline validation and CITE preps are active. - STS-42 IML-1 (at O&C) - Rack, floor, and module staging is continuing. The empty RHS for rack 8 will be weighed today. - Atlas-1 (at O&C) - Aft orthogrid and EPDB installations will occur today. - STS-46 TSS-1 (at O&C) - No activities are scheduled for today. - STS-47 Spacelab-J (at O&C) - Rack 11 staging continues on second shift. ------------------------------ Date: 25 Jun 90 05:14:35 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Summary for 06/22/90 (Forwarded) STS-35, 40, AND 42 PAYLOAD STATUS REPORT FRIDAY, JUNE 22, 1990 -- 2 P.M. Patricia E. Phillips NASA Public Affairs/KSC 407/867-2468 ASTRO-1/STS-35 Technicians are preparing to service the Broad Band X-Ray Telescope with liquid argon on June 25. The telescope was last serviced with argon beginning on Sun- day, June 10, at Launch Pad 39A. The operation concluded shortly after midnight Monday, June 11. Both dewars were topped off and then the argon was frozen solid. The freezing provided up to 16 days of cooling for the sensitive instrument during orbiter rollback to the Vehicle Assembly Building, demating, and transfer to the OPF. The reservice with liquid argon is a standard procedure during times when payload technicians can have access to the telescope about every 10 days. The frozen servicing is used with longer periods between servicing such as transportation, launch pad, and flight requirements. Routine checking of items such as temperature, pressure, and potential contamination will continue throughout the payload's stay in the OPF. In essence, the payload team will duplicate the successful procedures followed during Astro-1's first stay in the OPF after its installation into Columbia. When the payload bay is opened, the payload and its support equipment will be covered. Protective drapes will also be placed around work areas. To save use of payload flight power systems, payload components requiring power will be maintained on ground support equipment (GSE) whenever possible. Technicians will also ensure that the HUT camera is turned on and off regularly to maintain its flight readiness. Valves will be opened to support BBXRT off-venting requirements. Offsite, specialists are developing a new mass memory unit (MMU) load that will update computer software for the revised mission, now targeted for a mid-August launch. That work will be performed over the next few weeks. The payload is healthy. Managers anticipate that four to six more servicings -- at least two with frozen argon -- could be be required before flight. The next BBXRT servicing will be scheduled in early July. SPACELAB LIFE SCIENCES 1 (SLS-1)/STS-40 SLS-1 is targeted to complete the Cargoe Integration Test Equipment (CITE) test next week. A major milestone in the in- tegrated systems testing required before flight, the test began June 14. No major problems have been reported. The integrated SLS module was moved into the CITE test stand in the Operations and Checkout Building on May 31. The CITE stand was designed and constructed to serve as a stand-in for the Space Shuttle. This allows important data and communica- tions checkouts, such as CITE, to be performed without having to use the orbiter itself. Prior to the move, the SLS-1 payload successfully completed the Mission Sequence Test in mid-May. Other pre-move operations included the installation of insulation. Because SLS-1 has been remanifested from August to December, payload team members will power down the unit except as required for specific testing. In September, SLS experiments will undergo status checks prior to SLS installation in the orbiter. That in- stallation is now scheduled for October. INTERNATIONAL MICROGRAVITY LABORATORY (IML)/STS-42 The first racks have been installed on the floor. The remaining racks are scheduled to be installed in July. The post-integration functional test on the Gravitational Plant Physiology Experiment has been completed. Integration has also been completed on the Critical Point Facility Experiment (Rack 9). Video monitors for the experiment were delivered on June 19. Installation will occur in the near future. ------------------------------ End of SPACE Digest V11 #569 *******************