| ITOS-E | |
| Mission Type: | Weather |
| Operator: | NOAA[1] |
| Mission Duration: | Launch failure |
| Manufacturer: | RCA Astro |
| Launch Mass: | 747kg (1,647lb) |
| Launch Date: | UTC[2] |
| Launch Site: | Vandenberg SLC-2W |
| Orbit Epoch: | Planned |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Sun-synchronous |
| Apsis: | gee |
| Programme: | ITOS |
| Previous Mission: | NOAA-2 |
| Next Mission: | NOAA-3 |
ITOS-E was a weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA). It was part of a series of satellites called ITOS, or improved TIROS.[3] ITOS-E was released on July 16, 1973, from the Vandenberg Air Force Base, California, with a Delta rocket, but failed to achieve orbit.