Explorer 38

Explorer 38
Explorer 38 satellite
NamesRAE-A
RAE-1
Radio Astronomy Explorer-1
Mission typeRadio astronomy
OperatorNASA
COSPAR ID1968-055A Edit this at Wikidata
SATCAT no.03307
Mission duration1 year (achieved)
56 years, 2 months and 29 days
(in orbit)
Spacecraft properties
SpacecraftExplorer XXXVIII
Spacecraft typeRadio Astronomy Explorer
BusRAE
ManufacturerGoddard Space Flight Center
Launch mass602 kg (1,327 lb)
Power25 watts
Start of mission
Launch date4 July 1968, 17:26:50 GMT[1]
RocketThor-Delta J
(Thor 476 / Delta 057)
Launch siteVandenberg, SLC-2E
ContractorDouglas Aircraft Company
Entered service4 July 1968
End of mission
DisposalDecommissioned
Last contact4 July 1969
Orbital parameters
Reference systemGeocentric orbit[2]
RegimeMedium Earth orbit
Perigee altitude5,851 km (3,636 mi)
Apogee altitude5,861 km (3,642 mi)
Inclination120.60°
Period224.40 minutes
Instruments
Capacitance Probe
Impedance Probe
Planar Electron Trap
Radio Bursts Receivers
Step Frequency Radiometers

Explorer 38 (also called as Radio Astronomy Explorer A, RAE-A and RAE-1) was the first NASA satellite to study Radio astronomy. Explorer 38 was launched as part of the Explorer program, being the first of the 2 RAE satellites. Explorer 38 was launched on 4 July 1968 from Vandenberg Air Force Base, California, with a Delta J launch vehicle.[3]

  1. ^ McDowell, Jonathan (21 July 2021). "Launch Log". Jonathan's Space Report. Retrieved 13 November 2021.
  2. ^ "Trajectory: Explorer 38 (RAE-A) 1968-055A". NASA. 28 October 2021. Retrieved 13 November 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ Cite error: The named reference Display was invoked but never defined (see the help page).