Heat Capacity Mapping Mission

Heat Capacity Mapping Mission
HCMM satellite
NamesExplorer 58
HCMM
AEM-A
Applications Explorer Mission-A
Mission typeCartography
OperatorNASA
COSPAR ID1978-041A Edit this at Wikidata
SATCAT no.10818
Mission duration2.4 years (achieved)
Spacecraft properties
SpacecraftExplorer LVIII
Spacecraft typeHeat Capacity Mapping Mission
BusApplications Explorer Mission
ManufacturerGoddard Space Flight Center
Launch mass117 kg (258 lb)
PowerSolar panels and batteries
Start of mission
Launch date26 April 1978, 10:20 UTC
RocketScout D-1 (S-201C)
Launch siteVandenberg, SLC-5
ContractorVought
Entered service26 April 1978
End of mission
Deactivated30 September 1980
Last contact30 September 1980
Decay date22 December 1981
Orbital parameters
Reference systemGeocentric orbit[1]
RegimeSun-synchronous orbit
Perigee altitude558 km (347 mi)
Apogee altitude646 km (401 mi)
Inclination97.60°
Period96.70 minutes
Instruments
Heat Capacity Mapping Radiometer (HCMR)

The Heat Capacity Mapping Mission (HCMM) spacecraft was the first of a series of Applications Explorer Mission (AEM) of the Explorer program.[2]

  1. ^ Cite error: The named reference Trajectory was invoked but never defined (see the help page).
  2. ^ "Display: HCMM (1978-041A)". NASA. 28 October 2021. Retrieved 22 November 2021. Public Domain This article incorporates text from this source, which is in the public domain.