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Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: WDC-A R&S Launch Announcement 12934: Cosmos 2350 Привет всем! Вот, свалилось из Internet... COSPAR/ISES WORLD WARNING AGENCY FOR SATELLITES WORLD DATA CENTER-A FOR R & S, NASA/GSFC CODE 633, GREENBELT, MARYLAND, 20771. USA SPACEWARN 12934 COSPAR/WWAS USSPACECOM NUMBER SPACECRAFT INTERNATIONAL ID (CATALOG NUMBER) LAUNCH DATE,UT COSMOS 2350 1998-025A 25315 28 APRIL 1998 DR. JOSEPH H. KING, DIRECTOR, WDC-A-R&S. [PH: (301) 286 7355. E-MAIL: KING@NSSDCA.GSFC.NASA.GOV 29 APRIL 1998, 21:45 UT] Further details will be in the next SPACEWARN Bulletin Dr. Edwin V. Bell, II _/ _/ _/_/_/ _/_/_/ _/_/_/ _/_/ Mail Code 633 _/_/ _/ _/ _/ _/ _/ _/ _/ NASA Goddard Space _/ _/ _/ _/_/ _/_/ _/ _/ _/ Flight Center _/ _/_/ _/ _/ _/ _/ _/ _/ Greenbelt, MD 20771 _/ _/ _/_/_/ _/_/_/ _/_/_/ _/_/ +1-301-286-1187 ed.bell@gsfc.nasa.gov SPACEWARN home page: http://nssdc.gsfc.nasa.gov/spacewarn/ Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Next Space Science Update Features Largest Explosion Since The Big Ban Subject: Next Space Science Update Features Largest Explosion Since The Big Ban Привет всем! Вот, свалилось из Internet... Donald Savage Headquarters, Washington, DC April 30, 1998 (Phone: 202/358-1547) Bill Steigerwald Goddard Space Flight Center, Greenbelt, MD (Phone: 301/286-5017) NOTE TO EDITORS: N98-27 NEXT SPACE SCIENCE UPDATE FEATURES LARGEST EXPLOSION SINCE THE BIG BANG The next Space Science Update, scheduled for 2 p.m. EDT, Wednesday, May 6, 1998, at NASA Headquarters, Washington, DC, will feature the discovery of a gamma-ray burst which scientists are calling the most powerful explosion since the creation of the universe in the Big Bang. The gamma-ray burst, originating in a distant galaxy, was first detected by the Italian Beppo-Sax satellite and NASA's Compton Gamma Ray Observatory, with follow-up observations using the Keck Observatory in Hawaii and the Kitt Peak Observatory in Arizona, and confirmed by NASA's Hubble Space Telescope. Panelists will be: * Dr. Shrinivas Kulkarni, Astronomer, California Institute of Technology, Pasadena, CA * Dr. David Helfand, Professor of Astronomy, Columbia University, New York * Dr. Stan Woosley, Professor of Astronomy and Astrophysics, University of California, Santa Cruz * Dr. John Bahcall, Professor, School of Natural Sciences at the Institute for Advanced Study, Princeton University, NJ * Dr. Alan Bunner, Science Director for the Structure and Evolution of the Universe program, NASA Headquarters, Washington, DC, panel moderator. The Space Science Update will originate from the NASA Headquarters Auditorium, 300 E St., S.W., Washington, DC, and will be carried live on NASA TV with two-way question-and-answer capability for reporters covering the event from participating NASA centers. NASA Television is broadcast on the GE-2 satellite, located on Transponder 9C, at 85 degrees West longitude, vertical polarization, frequency 3880.0 Mhz, audio 6.8 MHz. Live audio of the broadcast will be available on voice circuit at NASA's Kennedy Space Center, FL, on 407/867-1220. - end - Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Student Winners To Be Honored In Washington, DC Привет всем! Вот, свалилось из Internet... Beth Schmid Headquarters, Washington, DC April 30, 1998 (Phone: 202/358-1760) RELEASE: 98-72 STUDENT WINNERS TO BE HONORED IN WASHINGTON, DC Twenty-nine students from public and private schools across the United States have won national recognition in NASA's 18th annual Space Science Student Involvement Program (SSIP) competition. The students will be honored along with their teachers at the National Space Science Symposium, May 2-5, at the Hotel Washington, 515 15th St., NW, Washington, DC. On Monday, May 4, all symposium events will be open to the press. Beginning at 8:30 a.m. EDT, the national winners of four of the competitions will present their winning proposals in the Hotel Washington's Ballroom. At 1 p.m., eight national semi- finalist high school student winners will present proposals for a Mars science experiment project to a panel of NASA scientists. On Tuesday, May 5, students will tour the Capitol and meet their members of Congress. The competition, sponsored by NASA and administered by the National Science Teachers Association, is an interdisciplinary program designed to address the need for greater literacy in the areas of science, critical and creative thinking, mathematics and technology. Nearly 10,000 students in elementary, junior high, and high school competed in five competition categories using their skills in mathematics, science, technology, art and creative writing. The National Space Science Symposium brings together the 29 national winners and their teachers to recognize their academic achievement in an environment designed to further challenge their talents. The trip to the symposium includes formal presentations of their entries by the students. In addition to their recognition in Washington, other awards include opportunities to intern at a NASA field center for a week during the summer, Space Camp scholarships, medals, ribbons and certificates. Winners of the Intergalactic Art competition will have their artwork displayed at the Hotel Washington during the symposium. Interested persons can view the display in the Hotel Washington's Ballroom through Tuesday, May 5. After the symposium, artwork will be on display in museums, schools and other public sites throughout this year. At 6:00 p.m. on May 5, the students and their teachers will be honored at a banquet at the Hotel Washington. The banquet speaker will be Steven S. Oswald, an astronaut who currently serves as the Deputy Associate Administrator for Space Operations in the Office of Space Flight at NASA Headquarters, Washington, DC. A complete list of SSIP winners can be found at the following URL: ftp://ftp.hq.nasa.gov/pub/pao/pressrel/1998/98-072a.txt -end- Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Cassini Update - May 1, 1998 Привет всем! Вот, свалилось из Internet... Cassini Significant Event Report For Week Ending 05/1/98 Spacecraft Status: The Cassini spacecraft is presently traveling at a speed of approximately 147,000 kilometers/hour (~91,000 mph) relative to the sun and has traveled approximately 555 million kilometers (~344 million miles) since launch on October 15, 1997. Cassini's first planetary gravity assist, a technique used to increase spacecraft velocity, occurred early Sunday morning, April 26th. Cassini is now traveling approximately 11,000 kph (7,000 mph) faster than it was a week ago. The Venus-1 flyby was a tremendous success. Post-flyby Navigation tracking has indicated that the spacecraft is precisely on the desired trajectory. This information has allowed the Program to cancel the next trajectory correction maneuver, which had been planned for May 14, as it is no longer needed. The most recent Spacecraft status is from the DSN tracking pass on Tuesday, 04/28, over Canberra. There have been two additional no-telemetry passes on Wednesday 04/29 and Thursday 04/30. The Cassini spacecraft is in an excellent state of health and is executing the C7 sequence nominally. Inertial attitude control is being maintained using the spacecraft's hydrazine thrusters (RCS system). The spacecraft continues to fly in a High Gain Antenna-to-Sun attitude. It will maintain the HGA-to-Sun attitude, except for planned trajectory correction maneuvers, for the first 14 months of flight. Communication with Earth during early cruise is via one of the spacecraft's two low-gain antennas; the antenna selected depends on the relative geometry of the Sun, Earth and the spacecraft. The downlink telemetry rate is presently 40 bps. Spacecraft Activity Summary: On Friday, 04/24, there were no changes to spacecraft configuration. On Saturday, 04/25, the Solid State Recorder (SSR) record and playback pointers were reset, according to plan. This housekeeping activity, done approximately weekly, maximizes the amount of time that recorded engineering data is available for playback to the ground should an anomaly occur on the spacecraft. On Sunday, 04/26, the Venus-1 flyby and associated activities took place, with Venus closest approach occurring at 6:44am PDT. The Radio & Plasma Wave Science (RPWS) instrument conducted a several-hour search for signals which could indicate the occurrence of lightning in the Venusian atmosphere. The Radar instrument conducted an engineering test near closest approach to attempt to acquire its first "bounce" from a target body - a closed-loop test very difficult to accomplish on the ground. Finally, during the portion of flyby when the spacecraft flew behind Venus (as seen from the Earth), some of NASA's Deep Space Network equipment was employed to conduct an atmospheric occultation experiment to obtain data which can be used by the Radio Science team. Results of the RPWS and Radar activities are going to be played back from the Cassini Solid State Recorders (SSRs) this coming Saturday (5/2) and Sunday (5/3), respectively. On Monday, 04/27, as part of the onboard sequence, Cassini executed a Memory Readout of Mass Properties in preparation for TCM#4. As it turns out, TCM#4 will not be needed and has since been cancelled (see above). On Tuesday, 04/28, a maintenance activity was performed on the SSR Flight Software Partitions. This activity repairs any SSR double bit errors (DBEs) which have occurred in the code-containing portions of the Flight Software partitions during the preceding period. The real-time command based portion of the activity, which clears telemetry flags and reads out the results of the maintenance activity, is scheduled for this Friday, 5/1. On Wednesday, 04/29, there were no changes to spacecraft configuration. On Thursday, 04/30, the Solid State Recorder (SSR) record and playback pointers were reset, according to plan. Upcoming events: Activities scheduled for the week of 5/01 - 5/07 include: Reaction Wheel Assembly Exercise, and AACS Fault Protection Log Maintenance (05/01), playback of RPWS Venus-1 Mini sequence data (05/02), playback of Radar Venus-1 Mini sequence data (05/03), AACS Inertial Vector Propagation (IVP) Update Part#1 (05/03),AACS IVP Update Part#2 (05/04), SSR Pointer Reset (05/05), and SRU-A Decontamination (05/06). DSN Coverage: Over the past week Cassini had 17 scheduled DSN tracks, occurring from 04/24 through 4/30, to support the Venus-1 flyby. In the coming week there will be 9 DSN passes. Huygens Probe Status: No report this week. POP 98-1 Review was held on April 30, 1998 at NASA Headquarters. Teachers Workshop: The Cassini Outreach Program held a workshop for teachers on Saturday, April 25, in conjunction with the spacecraft's Venus 1 flyby the next day. Approximately 105 teachers attended and heard presentations on Cassini, swingby dynamics, Cassini's power system, the current state of knowledge regarding Venus' atmosphere and <b style="color:black;background-color:#66ffff">surface</b>, and Cassini educator materials including the teacher guide, web page, and "Ways of Seeing" CD-ROM. Survey forms returned by the attendees were very favorable. Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Educators, Community Members Onboard For Jupiter And Comet Missions Привет всем! Вот, свалилось из Internet... MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 http://www.jpl.nasa.gov Contact: Jane Platt FOR IMMEDIATE RELEASE April 30,1998 EDUCATORS, COMMUNITY MEMBERS ONBOARD FOR JUPITER AND COMET MISSIONS Educators and community members from across the country have been selected from a field of hundreds of candidates to participate in educational training and grassroots programs sponsored by NASA's Galileo project and the Stardust comet sample return mission. Both missions are managed for NASA by the Jet Propulsion Laboratory (JPL), Pasadena, CA. These programs are part of ongoing JPL and NASA efforts to enhance science and math teacher training in U.S. schools, and to bring the excitement of space travel to the community level. The Galileo project has named 55 new ambassadors and co-ambassadors to educate the public in communities across America about the Galileo Europa mission's current journey around Jupiter and its moons. The mission's main focus is on the moon Europa, which may have a liquid water ocean beneath its icy crust. The addition of the new graduates, who span the country from northeast Maine to Hawaii, brings the total number of Galileo ambassadors to 84. Each ambassador has proposed at least five community events, such as planetarium shows, museum displays and programs for Boy Scouts and Girl Scouts. The ambassadors, primarily K-12 educators, join the recently appointed Galileo Fellows, who instruct other teachers in spreading the word about the Galileo mission. A state-by-state listing of ambassadors, hometowns, contact information and a calendar of ambassador-hosted events can be found on the Internet at http://www.jpl.nasa.gov/galileo/ambassadors. The Stardust project, which will launch a spacecraft to a comet next February, has chosen the initial 10 educators from 10 states as Stardust Fellowship winners. An additional 15 will be chosen in the fall. The educators will receive intensive training on the mission and its science. The training is designed to facilitate development of a nationwide teacher training initiative with supporting educational materials. The effort is targeted at grades 4-8 and focuses on teaching students about small solar system bodies such as comets and asteroids. Stardust's Fellows Program is part of an educational outreach partnership between the project, the Virginia-based Challenger Center for Space Science Education and Lockheed Martin Astronautics, Denver, CO, which is assembling the Stardust spacecraft. Information on Stardust and its Educator Fellows can be found at http://stardust.jpl.nasa.gov. ##### Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Mars Global Surveyor Update - May 1, 1998 Привет всем! Вот, свалилось из Internet... Mars Global Surveyor Flight Status Report Friday, 1 May 1998 This week, the Mars Global Surveyor flight team closed out a successful month of dedicated science operations. For over sixty consecutive orbits starting in early April and ending on Tuesday, the spacecraft's scientific instruments collected data near the low point of its 11.6-hour orbit. Every day of that month, Surveyor transmitted nearly 25 megabytes of data back to Earth. Much of the publicity generated by April's science collection activities focused on targeted observations of several selected sites on the Martian <b style="color:black;background-color:#66ffff">surface</b>. Because explicit targeting is not part of the Surveyor spacecraft's inherent abilities, these operations involved a substantial collaborative effort between Dr. Michael Malin's camera team, Dr. David Smith's laser altimeter team that assisted with Mars map corrections, and project engineering elements such as mission planning, spacecraft systems, and navigation. Major imaging highlights included three photographs of the Cydonia region in the northern hemisphere. This area is home to a one-mile (1.5- km) wide object known popularly as the "face on Mars." One of the three Cydonia images shows the so-called face at 14.1-feet (4.3 meters) per pixel, a resolution about 10 times better than the best Viking Orbiter image from 1976. In addition to the Cydonia images, Surveyor's camera also obtained two photographs of the Viking 1 landing site in Chryse Planitia, and one image of the Mars Pathfinder landing site in the Ares Valles region. Some of the objects visible in the Pathfinder image include major landmarks photographed on July 4th, 1997, including the famous "twin peaks" and "big crater." However, the lander and rover are not discernible in part because at the imaging range of about 497 miles (800 km), their size in the photograph is less than one pixel. Despite this fact, the resolution of the current image still exceeds the best photograph of Ares Valles taken during the Viking Orbiter mission over twenty years ago. During mapping operations next year, the camera may have an opportunity to image the Pathfinder landing site again at ranges as low as 235 miles (378 km). In those images, small objects such as the lander and parachute may be visible. The Viking 2 lander site at Utopia Planitia was also targeted by the camera for observation. Unfortunately, clouds obscured the site during each one of the three attempts. Similar to the situation with the Pathfinder site, further attempts at imaging the Viking 2 site may occur next year during mapping operations. Other experiments on the spacecraft have also been busy acquiring data. Besides the camera, the laser altimeter, magnetometer, thermal emission spectrometer, and radio science investigation teams have also collected data since the beginning of April. These measurements include northern hemisphere topography by the laser, local and global magnetic properties by the magnetometer, atmosphere and mineralogy studies by the spectrometer, and atmosphere and gravity field experiments by the radio science team. Of particular interest, Dr. David Smith's laser altimeter team has been gathering data about the Martian north polar ice caps. On every orbit, the laser measures the cap's topography in order to calculate its thickness. In June, the ice cap's thickness will reach a maximum during the height of the northern winter season. Thickness measurements from April compared to those that will be taken in June will contribute toward a greater understanding of the Martian cap formation. Although extremely successful, the flight team temporarily suspended science operations on Tuesday in preparation for a month-long event called solar conjunction. Starting this weekend, communications with the spacecraft will degrade as Mars begins to pass behind the Sun's corona as viewed from the Earth. As a consequence, the radio signals sent to and from Surveyor will experience a noise effect from solar electromagnetic interference. During the middle of the month, the Sun will directly eclipse the red planet and physically block radio communications with the spacecraft. Solar conjunction will end in late May as Mars moves out from behind the Sun. At that time, the flight team will re-establish commanding capability and resume science operations. Data collection will then continue until the restart of aerobraking on September 11th. The goal of this next phase of aerobraking will be to lower the current, highly elliptical, 11.6-hour orbit to a low, circular, two-hour mapping orbit by April 1999. After a mission elapsed time of 540 days from launch, Surveyor is 229.36 million miles (369.12 million kilometers) from the Earth and in an orbit around Mars with a high point of 11,108 miles (17,877km), a low point of 108.3 miles (174.3 km), and a period of 11.6 hours. A special, multi-week solar conjunction command sequence is currently executing on the spacecraft, and all systems continue to perform as expected. The next status report will be released sometime late May. Status report prepared by: Office of the Flight Operations Manager Mars Surveyor Operations Project NASA Jet Propulsion Laboratory California Institute of Technology Pasadena, CA 91109 Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: NASA Launching High School Experiments Привет всем! Вот, свалилось из Internet... Keith Koehler April 30, 1998 Wallops Flight Facility, Va. (Phone: 757-824-1579) RELEASE NO: 98-50 (98-11) NASA LAUNCHING HIGH SCHOOL EXPERIMENTS High school students from four states will travel to the Eastern Shore of Virginia next week to see their experiments fly on a suborbital rocket mission scheduled for launch May 6, 1998 from the NASA Goddard Space Flight Center's Wallops Flight Facility, Wallops Island. The experiments are part of the Suborbital Student Experiment Module, a pilot program to develop a payload system that allows students in primary school through high school to propose experiments for flight and launch them aboard a NASA sounding rocket within one school year. Lynn Marra, head of Student Programs in the Education Division at NASA Headquarters, Washington, D.C., said, "The students in the pilot program have shown great ingenuity in the design and assembly of their experiments. We are very excited with the future possibilities of this new and innovative program." Keith Koehler, Wallops project coordinator, said, "The students coming to Wallops and participating in the launch process is a major part of this program. We want to give the students the opportunity to participate and gain an understanding of all aspects of a rocket mission from experiment design through data analysis." "During the week the students will participate in the final payload preparations, take an active part in the launch countdown and present the preliminary results. This will be a week they will always remember," Koehler said. Four experiments will fly on a single-stage Orion sounding rocket to an altitude of 27 miles. The payload will impact in the Atlantic Ocean approximately 13 miles off the coast of Wallops Island. The U.S. Coast Guard, Chincoteague, Va., will recover the payload and the experiments returned to the students the same day of the launch. The experiments include the study of the efficiency of electric motor lubricants during launch, the heat transfer of materials, atmospheric measurements, and the effects of acceleration on zebra fish embryos. The participating schools are Worcester Country School, Berlin, Md.; Southern High School, Baltimore; North Carolina School of Science and Mathematics, Durham; Sauk Rapids/Rice High School, Minn.; and Glenbrook North High School, Northbrook, Ill.. The Glenbrook experiment is serving as a backup. The student teams submitted experiment proposals in December. At the same time, personnel from the Wallops Flight Facility began design of the payload system.Fabrication of the experiments and payloads began in late February and the experiments arrived at Wallops for integration and testing the week of April 20. Koehler said, "The development and execution of this program has been on an extremely fast track. The student and Wallops payload teams have done a tremendous job of meeting the schedule." The NASA payload system provides power and data recording systems to each deck and video cameras for two of the experiment decks. Each school was provided a 14- inch diameter deck plate on which to mount their experiment. The cost of the experiment components for each school varied from $20 to $250. The pilot program is a joint effort between the Offices of Human Resources and Education, Space Science, and Space Flight at NASA Headquarters. -end- Hа сегодня все, пока! =SANA=

Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - May 1, 1998 Привет всем! Вот, свалилось из Internet... 1998 MARS SURVEYOR PROJECT STATUS REPORT May 1, 1998 John McNamee Mars Surveyor 98 Project Manager Orbiter solar thermal vacuum (STV) testing was resumed April 27 in order to calibrate the Pressure Modulator Infrared Radiometer (PMIRR) instrument. All spacecraft and instrument STV test objectives were completed successfully (including the calibration of PMIRR) on April 28. A system aliveness test was conducted following STV with no anomalies and the go ahead was given to remove the spacecraft from the thermal vacuum chamber. The earlier PMIRR failure in STV was de