From dj@haagar.Jpl.Nasa.Gov Thu Jun 10 12:57:40 1993 To: adam@vlsi.cs.caltech.edu, cjb2@cc.bellcore.com, cvadrnla@csupomona.edu, dwyer@fshvmx.iinus1.ibm.com, goldie@panix.com, ian@agranat.com, khare@caltech.edu, kinman@haagar.Jpl.Nasa.Gov, mikem@ll.mit.edu, paull@avid.devo.ilx.com Subject: FWD: JPL prjects update Article 1484 of jpl.spacecraft: From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 PLANETARY MISSION STATUS May 27, 1993 GALILEO: The spacecraft is now en route to Jupiter, scheduled to enter orbit December 7, 1995. Spacecraft performance and condition are excellent except that the high-gain antenna is only partly deployed; science and engineering data are being transmitted via the low-gain antenna. The mission team is planning to use the low-gain antenna for the Jupiter mission and for the encounter August 28, 1993 with asteroid Ida. Galileo was launched October 18, 1989, flew by Venus in 1990 and Earth in 1990 and 1992 for gravity assists, and flew by asteroid Gaspra in October 1991 for scientific observation. Contact: Jim Wilson, (818) 354-5011. MAGELLAN: The Magellan spacecraft has concluded its eight-month survey of the gravitational field of Venus from its elliptical orbit. On May 25, flight controllers began an 80-day program to lower and circularize the spacecraft's orbit by aerobraking, dipping into Venus's upper atmosphere each orbit. Magellan was launched May 4, 1989 and radar-mapped more than 98 percent of Venus's surface from September 1990 to September 1992. Contact: Jim Doyle, (818) 354-5011. MARS OBSERVER: Spacecraft health and performance are normal, after several episodes in which it entered contingency mode, a safe state triggered by the spacecraft computer because of attitude-reference anomalies. A software fix has solved the problem. Mars Observer is scheduled to enter Mars orbit August 24, 1993; it will be moved into a mapping orbit by November 8 and science operations are planned to start November 22. Mars Observer was launched September 25, 1992. Contact: Diane Ainsworth, (818) 354-5011. TOPEX/POSEIDON: The satellite is healthy, and all scientific instruments are performing normally, typically providing three playbacks per day. The mission is mapping ocean circulation. TOPEX/Poseidon was launched August 10, 1992. Contact: Mary Hardin, (818) 354-5011. ULYSSES: The spacecraft is in a highly inclined solar orbit now 31.7 degrees south relative to the Sun's equator, in transit from its Jupiter gravity assist in February 1992 toward its solar polar passages (about 80 degrees south and north) in 1994 and 1995. Spacecraft condition and performance are excellent, with Ulysses gathering data on the heliosphere -- the realm dominated by the solar wind, a stream of charged particles flowing from the Sun. The Ulysses spacecraft was built by the European Space Agency and launched October 6, 1990. Contact: Diane Ainsworth, (818) 354-5011. VOYAGER 1 and 2: The two Voyager spacecraft have detected low- frequency radio emissions believed to originate at the boundary between the solar wind and the interstellar medium, called the heliopause. Detection and measurement of this boundary is the principal goal of the Voyager Interstellar Mission. Voyager 1, launched September 5, 1977, is currently 7.8 billion kilometers (4.8 billion miles) from the Sun after flying by Jupiter and Saturn in 1979 and 1980; Voyager 2, launched August 20, 1977, to fly by Jupiter (1979), Saturn (1981), Uranus (1986) and Neptune (1989), is now 6 billion kilometers (3.7 billion miles) from the Sun. Contact: Mary Hardin, (818) 354-5011. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Never laugh at anyone's /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | dreams. |_____|/ |_|/ |_____|/ | DJ M/S 161-241 dj@haagar.jpl.nasa.gov (818) 354-8889 Jet Propulsion Laboratory #include 4800 Oak Grove Drive The difficult we do immediately, Pasadena, CA 91109 the impossible takes a little longer. *** The Space Calendar is updated monthly and the latest copy is available at ames.arc.nasa.gov in the /pub/SPACE/FAQ directory. Please send any updates or corrections to Ron Baalke (baalke@kelvin.jpl.nasa.gov). Note that launch dates are subject to change. *** From dj@haagar.Jpl.Nasa.Gov Tue Jun 29 19:26:11 1993 To: adam@vlsi.cs.caltech.edu, byrne@kelvin.Jpl.Nasa.Gov, cjb2@cc.bellcore.com, drogosz@kelvin.Jpl.Nasa.Gov, dwyer@fshvmx.iinus1.ibm.com, goldie@panix.com, ian@agranat.com, khare@caltech.edu, kinman@haagar.Jpl.Nasa.Gov, mikem@ll.mit.edu, paull@avid.devo.ilx.com Subject: FWD - Planetary mission summary, June 29, 1993 Article 862 of jpl.pio.nasa-news: From: newsdesk@jplpost (Admin) Subject: Planetary mission summary, June 29, 1993 Date: 29 Jun 1993 10:24:29 -0700 PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 PLANETARY MISSION STATUS June 29, 1993 GALILEO: The spacecraft is now en route to Jupiter, scheduled to enter orbit December 7, 1995. Galileo will also fly by asteroid Ida, at 2400 kilometers, on August 28, 1993. The spacecraft's performance and condition are excellent except that the high-gain antenna is only partly deployed; science and engineering data are being transmitted via the low-gain antenna, which the mission team is planning to use for the Jupiter mission and the Ida encounter. Galileo was launched October 18, 1989, flew by Venus in 1990 and Earth in 1990 and 1992 for gravity assists, and flew by asteroid Gaspra in October 1991 for scientific observation. Contact: Jim Wilson, (818) 354-5011. MAGELLAN: The Magellan spacecraft controllers are conducting an aerobraking program, begun May 25, to lower and circularize the spacecraft's orbit, permitting higher-resolution global gravity mapping. In this 80-day innovative procedure, the spacecraft dips into Venus's upper atmosphere each orbit, slowing and shortening the orbit without expending fuel. Magellan was launched May 4, 1989. It radar-mapped more than 98 percent of Venus's surface from September 1990 to September 1992, and surveyed parts of the gravitational field from its elliptical orbit for the next 8 months. Contact: Jim Doyle, (818) 354-5011. MARS OBSERVER: Spacecraft health and performance are normal. Mars Observer is scheduled to enter Mars orbit August 24, 1993; it will be maneuvered into a mapping orbit by November 8 and science operations are planned to start November 24. Mars Observer was launched September 25, 1992. Contact: Diane Ainsworth, (818) 354-5011. TOPEX/POSEIDON: The satellite is healthy, and all scientific instruments are performing normally, typically providing three playbacks per day. The mission is mapping global sea level changes, reflecting seasonal warming and cooling and winds. So far it has accumulated 6 months of data. TOPEX/Poseidon was launched August 10, 1992. Contact: Mary Hardin, (818) 354-5011. ULYSSES: The spacecraft is in a highly inclined solar orbit, now more than 33 degrees south relative to the Sun's equator, in transit from its Jupiter gravity assist in February 1992 toward its solar polar passages (about 80 degrees south and north) in 1994 and 1995. Spacecraft condition and performance are excellent, with Ulysses gathering data on the heliosphere -- the realm dominated by the solar wind, a stream of charged particles flowing from the Sun. The Ulysses spacecraft was built by the European Space Agency and launched October 6, 1990. Contact: Diane Ainsworth, (818) 354-5011. VOYAGER 1 and 2: The two Voyager spacecraft are continuing their Interstellar Mission, having remotely detected the heliopause, the boundary between the solar magnetosphere and interstellar space, for the first time last month. Voyager 1, launched September 5, 1977, is currently 7.9 billion kilometers (4.9 billion miles) from the Sun after flying by Jupiter and Saturn in 1979 and 1980; Voyager 2, launched August 20, 1977, to fly by Jupiter (1979), Saturn (1981), Uranus (1986) and Neptune (1989), is now 6 billion kilometers (3.8 billion miles) from the Sun. Contact: Mary Hardin, (818) 354-5011. ##### DJ, JPL M/S 161-241 (818)354-8889 #include 4800 Oak Grove Drive Pasadena, CA 91109 The difficult we do immediately, dj@haagar.jpl.nasa.gov the impossible takes a little longer.