Nimbus 4
Artist rendering of the Nimbus 4 | |
| Mission type | Weather satellite |
|---|---|
| Operator | NASA |
| COSPAR ID | 1970-025A |
| SATCAT no. | 4362 |
| Mission duration | 10 years and 5 months |
| Spacecraft properties | |
| Manufacturer | RCA Astrospace |
| Launch mass | 619.6 kilograms (1,366 lb) |
| Dimensions | 3.7 m × 1.5 m × 3.0 m (12.1 ft × 4.9 ft × 9.8 ft) |
| Start of mission | |
| Launch date | April 8, 1970, 08:17:56 UTC |
| Rocket | Thorad-SLV2G Agena-D |
| Launch site | Vandenberg SLC-2E |
| End of mission | |
| Last contact | September 30, 1980 |
| Decay date | September 30, 1980 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Eccentricity | 0.00107 |
| Perigee altitude | 1,092 kilometers (679 mi) |
| Apogee altitude | 1,108 kilometers (688 mi) |
| Inclination | 80.114° |
| Period | 107.2 minutes |
| Epoch | April 8, 1970 |
Nimbus 4 (also called Nimbus D) was a meteorological satellite. It was the fourth in a series of the Nimbus program.