Mission type | Solar science |
---|---|
Operator | NASA |
COSPAR ID | 1965-093A |
SATCAT no. | 1738 |
Mission duration | 59 years and 8 days (in orbit) |
Spacecraft properties | |
Manufacturer | Naval Research Lab |
Launch mass | 56.7 kilograms (125 lb) |
Start of mission | |
Launch date | November 19, 1965, 22:11:30[1][2] | UTC
Rocket | Scout X-4 |
Launch site | Wallops LA-3 |
End of mission | |
Last contact | August 1967 |
Orbital parameters | |
Reference system | Geocentric[3] |
Regime | Circular orbit |
Eccentricity | 0.01302 |
Perigee altitude | 704 kilometers (437 mi) |
Apogee altitude | 891 kilometers (554 mi) |
Inclination | 59.7 degrees |
Period | 100.8 minutes |
Epoch | 19 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]