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Explorer 49 (also called Radio Astronomy Explorer-2, RAE-B) was a NASA 328 kg (723 lb) satellite launched on 10 June 1973, for long wave radio astronomy research. It had four 230 m (750 ft) X-shaped antenna elements, which made it one of the largest spacecraft ever built.
Spacecraft, Launch & Experiments
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Explorer 49 | Aposelene altitude | 1,064 km (661 mi) | 1.00 | infobox |
| Explorer 49 | Bus | RAE | 1.00 | infobox |
| Explorer 49 | Contractor | Douglas Aircraft Company | 1.00 | infobox |
| Explorer 49 | COSPAR ID | 1973-039A | 1.00 | infobox |
| Explorer 49 | Destroyed | September 1977 | 1.00 | infobox |
| Explorer 49 | Dimensions | 92 cm (36 in) diameter and 79 cm (31 in) high | 1.00 | infobox |
| Explorer 49 | Entered service | 10 June 1973 | 1.00 | infobox |
| Explorer 49 | Inclination | 55.70° | 1.00 | infobox |
| Explorer 49 | Last contact | August 1977 | 1.00 | infobox |
| Explorer 49 | Launch date | 10 June 1973, 14:13:00 UTC | 1.00 | infobox |
| Explorer 49 | Launch mass | 330.2 kg | 1.00 | infobox |
| Explorer 49 | Launch site | Cape Canaveral, LC-17B | 1.00 | infobox |
| Explorer 49 | Manufacturer | Goddard Space Flight Center | 1.00 | infobox |
| Explorer 49 | Mission duration | 4 years and 2 months (achieved) | 1.00 | infobox |
| Explorer 49 | Mission type | Radio astronomy | 1.00 | infobox |
| Explorer 49 | Names | RAE-B RAE-2 Radio Astronomy Explorer-2 | 1.00 | infobox |
| Explorer 49 | Operator | NASA | 1.00 | infobox |
| Explorer 49 | Orbital insertion | 15 June 1973, 07:21 UTC | 1.00 | infobox |
| Explorer 49 | Period | 221.17 minutes | 1.00 | infobox |
| Explorer 49 | Periselene altitude | 1,053 km (654 mi) | 1.00 | infobox |
| Explorer 49 | Power | 25 watts | 1.00 | infobox |
| Explorer 49 | Reference system | Selenocentric orbit | 1.00 | infobox |
| Explorer 49 | Rocket | Thor-Delta 1913 (Thor 581 / Delta 095) | 1.00 | infobox |
| Explorer 49 | SATCAT no. | 06686 | 1.00 | infobox |
| Explorer 49 | Spacecraft | Explorer XLIX | 1.00 | infobox |
| Explorer 49 | Spacecraft type | Radio Astronomy Explorer | 1.00 | infobox |
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