Explorer 49
E1033000
Explorer program spacecraft
NASA spacecraft
artificial satellite
lunar orbiter
radio astronomy satellite
Explorer 49 was a NASA lunar-orbiting radio astronomy satellite launched in 1973 to study low-frequency radio emissions from space.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Explorer program spacecraft
ⓘ
NASA spacecraft ⓘ artificial satellite ⓘ lunar orbiter ⓘ radio astronomy satellite ⓘ |
| alsoKnownAs | RAE-B NERFINISHED ⓘ |
| antennaConfiguration | three orthogonal dipole antennas ⓘ |
| antennaType | long dipole antennas ⓘ |
| boomLength | about 230 meters ⓘ |
| countryOfOperator |
United States of America
ⓘ
surface form:
United States
|
| dataTransmission | radio telemetry ⓘ |
| destination | Moon NERFINISHED ⓘ |
| discovererOrMaker | NASA Goddard Space Flight Center NERFINISHED ⓘ |
| frequencyBandLowerLimit | about 25 kHz ⓘ |
| frequencyBandUpperLimit | about 13 MHz ⓘ |
| frequencyRangeObserved |
low frequency radio waves
ⓘ
very low frequency radio waves ⓘ |
| fullName | Radio Astronomy Explorer-B NERFINISHED ⓘ |
| launchComplex | Launch Complex 17B NERFINISHED ⓘ |
| launchDate | 1973-06-10 ⓘ |
| launchRocketFamily | Delta rocket NERFINISHED ⓘ |
| launchSite |
Cape Canaveral
NERFINISHED
ⓘ
Cape Canaveral Air Force Station NERFINISHED ⓘ |
| launchVehicle | Delta 1913 NERFINISHED ⓘ |
| launchYear | 1973 ⓘ |
| massAtLaunch | approximately 330 kilograms ⓘ |
| missionEnd | late 1970s ⓘ |
| missionStart | 1973 ⓘ |
| missionType |
lunar orbiter
ⓘ
radio astronomy ⓘ |
| notableFeature |
carried very long deployable antennas for low-frequency observations
ⓘ
operated on the far side of the Moon for reduced terrestrial radio interference ⓘ |
| operator | NASA ⓘ |
| orbitType | lunar orbit ⓘ |
| powerSource |
rechargeable batteries
ⓘ
solar panels ⓘ |
| predecessor | Explorer 38 NERFINISHED ⓘ |
| primaryBodyOrbited | Moon NERFINISHED ⓘ |
| program | Explorer program NERFINISHED ⓘ |
| purpose |
investigate planetary and cosmic radio sources
ⓘ
map low-frequency radio emissions from the Milky Way ⓘ measure solar radio emissions at low frequencies ⓘ study low-frequency radio emissions from space ⓘ |
| scientificDiscipline |
radio astronomy
ⓘ
space physics ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraftBus | Explorer 38 / RAE-B derived bus NERFINISHED ⓘ |
| status | mission completed ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.