SOLRAD 8

Solrad 8
Mission typeSolar science
OperatorNASA
COSPAR ID1965-093A Edit this at Wikidata
SATCAT no.1738
Mission duration59 years and 8 days (in orbit)
Spacecraft properties
ManufacturerNaval Research Lab
Launch mass56.7 kilograms (125 lb)
Start of mission
Launch dateNovember 19, 1965, 22:11:30 (1965-11-19UTC22:11:30Z) UTC [1][2]
RocketScout X-4
Launch siteWallops LA-3
End of mission
Last contactAugust 1967 (1967-09)
Orbital parameters
Reference systemGeocentric[3]
RegimeCircular orbit
Eccentricity0.01302
Perigee altitude704 kilometers (437 mi)
Apogee altitude891 kilometers (554 mi)
Inclination59.7 degrees
Period100.8 minutes
Epoch19 November 1965, 04:48:00 UTC

The SOLRAD 8,Explorer 30 or SE-A satellite was one of the NASA SOLRAD (Solar Radiation) program that began in 1960 to provide continuous coverage of solar radiation with a set of standard photometers. SOLRAD 8 was a spin-stabilized satellite oriented with its spin axis perpendicular to the sun-satellite line so that the 14 solar X-ray[4] and ultraviolet photometers[5] pointing radially outward from its equatorial belt viewed the sun on each revolution. Data were transmitted in real time by means of an FM / AM the satellite's telemetry system and were recorded by the stations on the Spacecraft Tracking and Data Acquisition Network (STADAN) tracking network.[6]

  1. ^ "Solar-observing satellites". Rammb.cira.colostate.edu. Retrieved 2014-05-27.
  2. ^ "Launch Log". Jonathan's Space Report. 21 July 2021. Retrieved 9 November 2021.
  3. ^ "Trajectory: Explorer 30 (Solrad 8) 1965-093A". NASA. 28 October 2021. Retrieved 9 November 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SATELLITE_ENVIRONMENT/XRAY_BGND/docs/solrad.txt
  5. ^ "Solrad". Designation-systems.net. Retrieved 2014-05-27.
  6. ^ "Display: Explorer 30 (Solrad 8) 1965-093A". NASA. 28 October 2021. Retrieved 9 November 2021. Public Domain This article incorporates text from this source, which is in the public domain.