Explorer 28: Difference between revisions
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{{Infobox spaceflight |
{{Infobox spaceflight |
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| name = Explorer 28 |
| name = Explorer 28 |
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| image = |
| image = Explorer 21 IMP-B.jpg |
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| image_alt = 150px |
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| image_caption = |
| image_caption = |
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| spacecraft_bus = |
| spacecraft_bus = |
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| manufacturer = |
| manufacturer = |
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| dry_mass = |
| dry_mass = {{convert|58|kg}} |
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| launch_mass = |
| launch_mass = |
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| power = [[Solar Panels]] |
| power = [[Solar Panels]] |
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| launch_date = {{start-date|29 May 1965}} |
| launch_date = {{start-date|29 May 1965}} |
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| launch_rocket = [[Delta (rocket family)|Delta]] |
| launch_rocket = [[Delta (rocket family)|Delta]] |
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| launch_site = [[ |
| launch_site = [[Cape Canaveral Air Force Station|Cape Canaveral]] |
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| last_contact = {{end-date|12 May 1967}} |
| last_contact = {{end-date|12 May 1967}} |
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Revision as of 01:03, 11 June 2018
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| Operator | NASA |
|---|---|
| COSPAR ID | 1965-042A |
| SATCAT no. | 01388 |
| Website | [1] |
| Mission duration | ~2 Years |
| Spacecraft properties | |
| Dry mass | 58 kilograms (128 lb) |
| Power | Solar Panels |
| Start of mission | |
| Launch date | 29 May 1965 |
| Rocket | Delta |
| Launch site | Cape Canaveral |
| End of mission | |
| Last contact | 12 May 1967 |
| Decay date | 4 July 1968[1] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | LEO |
| Eccentricity | 0.71617 |
| Perigee altitude | 32,290 km (20,060 mi) |
| Apogee altitude | 227,456 km (141,335 mi) |
| Inclination | 53.6° |
| Period | 107.6 minutes |
| Instruments | |
| Radio Beacon, Langmuir probe | |
Explorer 28 (or IMP-C) was a satellite launched in May 1965 to study Space physics. It was powered by chemical batteries and Solar panels. There were 7 experiments onboard, all devoted to particle studies. Performance was normal until mid-April 1967, when intermittent problems began. It stayed in contact until May 12, 1967, when contact was lost. The orbit kept going lower and lower until it re-entered on July 4 1968.[2]
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