Nimbus 1
| Nimbus 1 (Nimbus-A) | |
| Mission type | Weather satellite | 
|---|---|
| Operator | NASA | 
| COSPAR ID | 1964-052A | 
| SATCAT no. | 872 | 
| Mission duration | 25 days | 
| Spacecraft properties | |
| Manufacturer | RCA Astrospace | 
| Launch mass | 374.4 kilograms (825 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 | August 28, 1964, 07:56:57 UTC | 
| Rocket | Thor-DM21 Agena-B | 
| Launch site | Vandenberg 75-1-1 | 
| End of mission | |
| Last contact | September 22, 1964 | 
| Decay date | May 16, 1974 | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Low Earth | 
| Eccentricity | 0.03595 | 
| Perigee altitude | 429 kilometers (267 mi) | 
| Apogee altitude | 937 kilometers (582 mi) | 
| Inclination | 98.66° | 
| Period | 98.42 minutes | 
| Epoch | August 28, 1964 | 
Nimbus 1 (also called Nimbus-A) was a meteorological satellite. It was the first in a series of the Nimbus program.