Lead (space probe)
| Halley's comet exploration testing equipment "I lead it" (MS-T5) | |
|---|---|
 Bloom; a cliff | |
| Position | Institute of Space and Astronautical Science (ISAS) |
| The main manufacturer | NEC |
| International mark number | 1985-001A |
| Catalogue number | 15464 |
| State | The operational end |
| Purpose | Testing equipment of comet (PLANET-A) |
| It is targeted for observation | Halley's comet, interplanetary space |
| Display machine | The M-3SII rocket first unit |
| The launching date and time | 1985January 804:26 |
| Closest approach day | 1986March 11 |
| Operational end day | 1999January 7 |
| Off-the-air day | January 8, 1999 |
| Physical good point | |
| Main body dimensions | ⌀1.4m x 0.7m |
| Mass | 138 kg |
| Outbreak electricity | 100W |
| Main pusher | Hydrazine 1 liquid raster |
| Posture control system | Spin stability method |
| Orbital element | |
| It is targeted for go-around | The sun |
| Orbit | Elliptic orbit |
| Orbit period (P) | Approximately 319 days |
| Observation equipment | |
| SOW | Solar wind ion observation device |
| PWP | Plasma wave observation device |
| IMF | Solar wind, interplanetary space magnetic field observation device |
I lead it, and (MS-T5) is the interplanetary space space probe which Japanese Institute of Space and Astronautical Science launched for the first time (man-made planet). It was launched in the M-3SII rocket first unit on January 8, 1985 by the Kagoshima outer space observatory.
It was launched as an examination space probe of the comets (PLANET-A) which explored Halley's comet leading it. Other than the exploration of Halley's comet, it was aimed for the acquisition of the performance confirmation and farther space exploration technology of the newly improved M-3SII rocket. The imaging device is not equipped with to lead it unlike the comet which is sisters plane.
It bloomed, and, on October 31, 1984 ahead of display of the cliff, Usuda outer space observatory was founded as a receiving antenna for PLANET plans, and a 64m parabolic antenna was built.
I accessed Halley's comet to 6,990,000km as a member of space probe group by the international collaboration, the fine weather fleet on March 11, 1986 and observed a solar wind magnetic field and plasma of the neighborhood of comet.
I performed the first earth swing-by for a Japanese space probe in 1987 and changed orbit and observed magnetosphere section to go through from the earth magnetospheric tail region to the head as a Japanese space probe by earth swing-by (distance 80,000 kilos to bring into closest contact) that I hung it on January 9 from January 7, 1992 for the first time. It traveled side by side with the earth "to lead" that I changed orbit more, and the sun was cast into the orbit which revolved by earth swing-by of 1992. Following; while "lead it" was occasionally in the gravitation range (approximately 1,500,000 kilos) of the earth, kept distance from the earth less than 40 million kilos, and observed solar wind and the interaction with the earth magnetosphere (originally observe solar wind and the interaction of the earth magnetosphere in earth neighborhood, and this is the process that is at all reverse to ISEE-3 which performed Halley's comet observation by the Shitsuki swing-by).
The plan that I came close and observed to the Giacobini ツィナー comet was examined in 1998, but because a propellent was short, I was given up and the transmitter of the space probe was stopped on January 8, 1999 and finished use.
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