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... temperatures during eight-hour flight in the earth's shadow, a duration record for satellites. IMP remained in the shadow for so long because of its highly eccentric orbit, carrying it ... . Preliminary evaluation of telemetry tapes at NASA Goddard Space Flight Center indicated data from the IMP experiments were of good quality. ''(NASA Release 64-111)'' First anniversary of TELSTAR II communications ...

... needed to support Apollo missions. Explorer XLI carried 12 experiments-greatest number ever carried by IMP spacecraft-provided by universities, NASA centers, and industry to measure cosmic rays, solar plasmas, and ... six previously orbited satellites - Explorer XXXIII (IMP-D), launched July 1, 1966, and Explorer XXXV (IMP-E), launched July 19, 1967-were still providing scientific data. IMP program was managed by Goddard Space ...

... detailed understanding of dynamics of regions discovered and broadly surveyed by previous earth-orbiting IMPS and lunar IMP by obtaining scientific data during period of decreasing solar activity. Explorer 47 would continue ... , Atomic Energy Commission, and Goddard Space Flight Center . Explorer 47 was ninth spacecraft in IMP series. First- Explorer 18 (IMP-A)-had been launched Nov. 26, 1963, and most recent-Explorer 43 ...

... it sees is bankruptcy." ''(Kenworthy, NYT, 3/14/71, 21)'' March 13-17: Explorer 43 (IMP-I) Interplanetary Monitoring Platform was launched by NASA from ETR by three-stage, thrust- augmented ... second-generation spacecraft designed to study solar-lunar-terrestrial relationships. It was eighth of 10 IMPs and at 288 kg (635 lbs) was largest as well as most advanced spacecraft in Explorer series, Seventh IMP, Explorer 41, had been launched June 21, 1969, and was still operating. IMP program was managed by Goddard Space Flight Center GSFC ...

... Energy Commission, and uni-versities. Explorer 50 was the 10th and final spacecraft in the IMP series, which had monitored solar radiation during an entire solar cycle. The series had provided ... with the interaction of solar wind with the geomagnetic field. The first spacecraft in the IMP series, Explorer 18, was launched Nov. 26, 1963; the most recent, Explorer 47, was launched Sept. 22, 1972. The IMP program was directed by NASA'S Office of Space Science and managed by GSFC . Tracking ...

NASA successfully launched EXPLORER XXVIII Interplanetary Monitoring Probe (Imp-C) from ETR on a three-stage Thor-Delta booster. A slightly longer than planned ... indicated that all spacecraft systems were operating normally, that separation had occurred. The Imp series began with EXPLORER XVIII (Imp-A) launched Nov. 26, 1963. ''(NASA Release 65-164; Wash, Sun. Star ...

... more complex than any of four previous satellites launched in NASA's Interplanetary Monitoring Platform (IMP) series, two of which- Explorer XXVIII (launched May 29, 1965) and Explorer XXXIII (launched July 1, 1966)-were still operating and providing scientific data. IMP series was managed by Goddard Space Flight Center GSFC under Office of Space Science and ...

... mi.; perigee, 119 mi.), and all systems appeared to be functioning as planned. Lifetime of IMP-A , launched Nov. 26 from Cape Canaveral, revised by NASA from estimated 12 months to ...

Scientific results from the EXPLORER XVIII satellite-Interplanetary Monitoring Platform (IMP)-was topic of discussion at GSFC symposium. The NASA satellite was orbited in November 1963, ... two magnetometers, three plasma probes, and five sets of low and medium energy particle detectors. IMP data revealed a shock wave existed 53,600 mi. above earth's sunlit surface, formed ...

... 10 ft. ''(M&R, 11/16/64, 8)'' NASA announced selection of scientific satellites, IMP-D and IMP-E, that will be placed in orbit around the moon in 1966-67 to ...

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