.jpg) ESSA-9 being checked out before launch | |
| Mission type | Meteorology |
|---|---|
| Operator | ESSA (1969-70) NOAA (1970-72) |
| COSPAR ID | 1969-016A |
| SATCAT no. | 3764 |
| Mission duration | 1,726 days (achieved) 55 years, 8 months and 9 days (in orbit) |
| Spacecraft properties | |
| Launch mass | 145 kilograms (320 lb) |
| Start of mission | |
| Launch date | February 26, 1969, 07:47:01 UTC[1] |
| Rocket | Delta E1 |
| Launch site | Cape Canaveral LC-17B |
| End of mission | |
| Disposal | Decommissioned |
| Deactivated | November 1972 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Semi-major axis | 7,843.18 kilometers (4,873.53 mi) |
| Eccentricity | 0.00508 |
| Perigee altitude | 1,432 kilometers (890 mi) |
| Apogee altitude | 1,512 kilometers (940 mi) |
| Inclination | 101.99 degrees |
| Period | 115.21 minutes |
| Mean motion | 12.49 |
| Epoch | December 7, 2013, 20:28:49 UTC[2] |
| Instruments | |
| Advanced Vidicon Camera System (AVCS), Flat Plate Radiometer (FPR)[3] | |
ESSA-9, also known as TOS-G, was a meteorological satellite.[4] Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA). ESSA-9 replaced the ESSA-7 satellite.
- ^ Launch info
- ^ "ESSA 9 (TOS-G) Satellite details 1969-016A NORAD 3764". N2YO. December 7, 2013. Retrieved December 8, 2013.
- ^ Experiments on ESSA-9
- ^ tbs-satellite.com Satellit Fact Sheet: ESSA-9