Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from corsica.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl) (->ota+space.digests) ID ; Fri, 16 Jun 89 05:16:58 -0400 (EDT) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Fri, 16 Jun 89 05:16:50 -0400 (EDT) Subject: SPACE Digest V9 #490 SPACE Digest Volume 9 : Issue 490 Today's Topics: NASA issues updated mixed fleet manifest (Forwarded) Planetoid 1989 FC information. Payload Status for 06/15/89 (Forwarded) ---------------------------------------------------------------------- Date: 14 Jun 89 19:23:32 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: NASA issues updated mixed fleet manifest (Forwarded) Barbara Selby Headquarters, Washington, D.C. June 14, 1989 2 p.m. EDT RELEASE: 89-93 NASA ISSUES UPDATED MIXED FLEET MANIFEST NASA today issued an updated mixed fleet manifest projecting current planning for primary payloads for Space Shuttle missions and expendable launch vehicles (ELV) through Fiscal Year 1995. In addition to the changes in the Space Shuttle flight sequence through STS-37 announced on May 12, this latest launch schedule continues to reflect NASA's commitment to the various science disciplines. Following the successful launch of the Magellan spacecraft to Venus in May, the planetary schedule is maintained with the Galileo flight to Jupiter being readied for launch on Oct. 12, 1989, and the Ulysses mission to study the sun scheduled for October 1990. Additionally, the first of the great observatories, the Hubble Space Telescope, is now scheduled for launch aboard the orbiter Discovery in March 1990. In support of Earth sciences, six additional Shuttle Solar Backscatter Ultraviolet (SSBUV) missions have been added to the line-up and the four previously-manifested SSBUV missions have been accelerated. The SSBUV instrumentation is a critical element in maintaining an accurate measurement of global ozone. Other major science mission changes include provisions for additional Atmospheric Laboratory for Applications and Science flights, an Astro flight and a U.S. Microgravity Payload flight. Recognizing the significance of recovering the Long Duration Exposure Facility (LDEF), a retrieval mission is slated for December of this year. The LDEF, a free-flying satellite carrying 57 science, technology and applications experiments, was deployed into orbit in 1984. After more than 5 years in space, LDEF -- in danger of being destroyed on reentry if not recovered by early 1990 -- is a valuable respository of information on space environmental effects. The first three missions to begin assembling Space Station Freedom are baselined in the new flight schedule in 1995. Also planned are two Flight Telerobotic Servicer-Demonstration Test Flights, a system being developed for the space station to assist in assembly, service and inspection of the manned base and attached payloads. In the international programs area, a third European Retrievable Carrier (Eureca-3L) is now slated for launch in May 1995. Eureca is a platform to be placed in orbit for 6 months, offering conventional services to experimenters. Two additional Spacehab modules have been booked, bringing the total number of planned flights to 6. The Spacehab is a commercially owned, pressurized module for conducting experiments in a human-tended environment. The new manifest also features six Shuttle "flight opportunities," beginning in 1992. Use of these flight opportunities by payloads which slip out of their planned time frame will minimize major manifest revisions and promote greater schedule stability in payload programs. NASA continues to employ ELVs for payloads not requiring the use of the Shuttle. Three new launches have been added to the ELV line-up in 1995 including the Solar Heliospheric Observatory aboard an Atlas II, a Geostationary Operational Environmental Satellite on an Atlas I and the Comet Rendezvous Asteroid Flyby marking NASA's first use of a Titan IV. - end - EDITORS NOTE: The June 1989 NASA Mixed Fleet Manifest is available in the NASA Headquarters and field center newsrooms. ------------------------------ Date: 15 Jun 89 20:12:00 GMT From: renoir.dec.com!klaes@decwrl.dec.com (CUP/ASG, MLO5-2/G1 6A, 223-3283) Subject: Planetoid 1989 FC information. International Astronomical Union (IAU) Circular 4767 - 1989 April 7 H. E. Holt and N. G. Thomas report their discovery of another fast moving asteroidal object on 0.46m Schmidt telescope films. E. Bowell, Lowell Observatory, communicates the following measurements by S. J. Bus and H. E. Holt. Five accurate positions measured from films taken March 31, April 2, 3, 4 follow. The "discovery" would have occurred between then and April 7, when the films were compared by blinking or in a stereoscopic comparator. Brian Marsden computed the orbital elements, and it was noted that "...the object may have made a near-record close approach to...Earth on March 23.0 ET." The asteroid was magnitude 16.5 and dimming rapidly at discovery. It had reached about magnitude 12 at closest approach. It was crossing over 30 degrees of sky per day at closest approach. For all the orbitophiles out there, the improved orbital elements from IAUC 4771: T = 1989 Jan.13.472 ET e = 0.36098 q = 0.65447 AU a = 1.02418 AU [lower case omega] = 254.903 degrees [upper case omega] = 179.912 degrees i = 4.976 degrees n = 0.950910 degrees P = 1.04 years ------------------------------ Date: 15 Jun 89 13:59:27 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Status for 06/15/89 (Forwarded) Payload Status Report Kennedy Space Center June 15, 1989 George Diller Galileo/IUS-19 Galileo was destacked during the last week of May for installation of Central Data System electronics and was followed by computer testing. The umbrella-like high gain antenna, which is scheduled for installation at the end of June, underwent a deployment test on May 31. Also that day, the probe was mated to the orbiter's despun section. This section together section with the associated retro propulsion module has now been restacked with the spun bus. Electrical testing of individual spacecraft elements has been underway over the past week. On Saturday, June 10, a "stand alone" mission sequence test was conducted to electrically verify the events which the spacecraft will perform from launch through separation from the Inertial Upper Stage. The IUS will also perform this test later in the Vertical Processing Facility. Yesterday and today, June 14-15, a total of 1300 pounds of nitrogen tetroxide oxidizer is being loaded into a pair of onboard oxidizer tanks. Next week the spacecraft will be fueled with 800 pounds of hydrazine. The Inertial Upper Stage is at Cape Canaveral Air Force Station. Electrical testing has been underway on the second stage, and a nozzle cone extension test was recently completed. Preparations are underway for mating the first and second stage late this week. Atlas Centaur AC-68/FltSatCom F-8 The Atlas first stage was erected in the gantry of Pad B on Launch Complex 36 on June 6. The interstage adapter was attached on June 7. The Centaur stage was hoisted into the gantry and mated to the Atlas on June 8. Since that time, electrical hookups and attachment of umbilicals have been underway. The work will be completed this week. A power-up of the booster is scheduled on or about June 22. The Terminal Countdown Demonstration (TCD), a tanking of the vehicle and simulated countdown, is scheduled for Aug. 9. The FltSatCom spacecraft is scheduled to arrive at Hangar AM on Cape Canaveral Air Force Station on July 31. ------------------------------ End of SPACE Digest V9 #490 *******************