 Image of TIROS-4. | |
| Mission type | Weather satellite |
|---|---|
| Operator | NASA |
| Harvard designation | 1962 β 1 |
| COSPAR ID | 1962-002A |
| SATCAT no. | 226 |
| Mission duration | 6 months |
| Spacecraft properties | |
| Spacecraft type | TIROS |
| Manufacturer | RCA Astro / GSFC |
| Launch mass | 129.3 kilograms (285 lb)[1] |
| Start of mission | |
| Launch date | February 8, 1962, 12:29 UTC[2] |
| Rocket | Thor-Delta |
| Launch site | Cape Canaveral LC-17A |
| End of mission | |
| Last contact | June 30, 1962 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Eccentricity | 0.00894[1] |
| Perigee altitude | 712 kilometers (442 mi)[1] |
| Apogee altitude | 840 kilometers (520 mi)[1] |
| Inclination | 48.3°[1] |
| Period | 100 minutes[1] |
| Epoch | February 8, 1962[1] |
| Instruments | |
| Low Resolution Omnidirectional Radiometer Widefield Radiometer Scanning Radiometer Television Camera System | |
TIROS-4 (also called TIROS-D and A9) was a spin-stabilized meteorological satellite. It was the fourth in a series of Television Infrared Observation Satellites.
