Objectives and Applications
Meteorology, agriculture and forestry, environmental monitoring, climatology, physical oceanography, Volcanic eruption monitoring, ice and snow cover, total ozone studies, space environment, solar flux analysis.
Full Name
National Oceanic and Atmospheric Administration - 4
Mission Status
Mission complete
Mission Agencies
Launch Date
15 Nov 1974
Mission Links
EOL Date
18 Nov 1978
Orbit Type
Sun-synchronous
Orbit Period
101.9 minutes
Orbit Sense
Descending
Orbit Inclination
98.9 deg
Orbit Altitude
850 km
Orbit Longitude
Orbit LST
Repeat Cycle
0.5 days
NORAD Catalog #
International Designator
SPM - Solar Proton Monitor |
| SR - Scanning Radiometer |
| VHRR - Very High Resolution Radiometer |
| VTPR - Vertical Temperature Profile Radiometer |