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ESSA
American agency overseeing development of spacecraft. Environmental Science Services Administration, USA.
Country: 
USA. 
Spacecraft: 
TIROS, 
TOS, 
ITOS. 
1965 July 2 - . 
04:07 GMT - . 
Launch Site: 
Cape Canaveral. 
Launch Complex: 
Cape Canaveral LC17B. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta C. 
- Tiros 10 - . 
 Payload: Tiros OT1. Mass: 127 kg (279 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: Tiros. 
 USAF Sat Cat:  1430 .  COSPAR: 1965-051A. Apogee: 807 km (501 mi). Perigee: 722 km (448 mi). Inclination: 98.80 deg. Period: 100.10 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1966 February 3 - . 
07:41 GMT - . 
Launch Site: 
Cape Canaveral. 
Launch Complex: 
Cape Canaveral LC17A. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta C. 
- ESSA 1 - . 
 Payload: Tiros OT3. Mass: 138 kg (304 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: Tiros. 
 USAF Sat Cat:  1982 .  COSPAR: 1966-008A. Apogee: 806 km (500 mi). Perigee: 684 km (425 mi). Inclination: 97.80 deg. Period: 99.70 min. Environmental Survey Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1966 February 28 - . 
13:58 GMT - . 
Launch Site: 
Cape Canaveral. 
Launch Complex: 
Cape Canaveral LC17B. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E. 
- ESSA 2 - . 
 Payload: Tiros OT2. Mass: 132 kg (291 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: Tiros. 
 USAF Sat Cat:  2091 .  COSPAR: 1966-016A. Apogee: 1,415 km (879 mi). Perigee: 1,355 km (841 mi). Inclination: 101.30 deg. Period: 113.50 min. Environmental Survey Satellite; carried APT cameras. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1966 October 2 - . 
10:39 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E. 
- ESSA 3 - . 
 Payload: TOS A. Mass: 145 kg (319 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  2435 .  COSPAR: 1966-087A. Apogee: 1,486 km (923 mi). Perigee: 1,387 km (861 mi). Inclination: 100.90 deg. Period: 114.60 min. Environmental Survey Satellite 3; replace ESSA 1. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1967 January 26 - . 
17:31 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E. 
- ESSA 4 - . 
 Payload: TOS B. Mass: 132 kg (291 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  2657 .  COSPAR: 1967-006A. Apogee: 1,440 km (890 mi). Perigee: 1,326 km (823 mi). Inclination: 102.00 deg. Period: 113.40 min. Replaced ESSA 2. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1967 April 20 - . 
11:21 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E. 
- ESSA 5 - . 
 Payload: TOS C. Mass: 145 kg (319 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  2757 .  COSPAR: 1967-036A. Apogee: 1,422 km (883 mi). Perigee: 1,355 km (841 mi). Inclination: 102.00 deg. Period: 113.50 min. Replaced ESSA 3. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1967 November 10 - . 
17:53 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E1. 
- ESSA 6 - . 
 Payload: TOS D. Mass: 132 kg (291 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  3035 .  COSPAR: 1967-114A. Apogee: 1,485 km (922 mi). Perigee: 1,409 km (875 mi). Inclination: 102.10 deg. Period: 114.80 min. Returned cloud cover images. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1968 May 2 - . 
22:42 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas. 
- Ionosphere mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 95 km (59 mi). 
 
1968 June 10 - . 
02:35 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas. 
- Ionosphere mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 95 km (59 mi). 
 
1968 August 16 - . 
11:24 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta N. 
- ESSA 7 - . 
 Payload: TOS E. Mass: 145 kg (319 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  3345 .  COSPAR: 1968-069A. Apogee: 1,473 km (915 mi). Perigee: 1,431 km (889 mi). Inclination: 101.90 deg. Period: 114.90 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1968 November 2 - . 
16:17 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas. 
- Ionosphere/Plasma mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 102 km (63 mi). 
 
1968 November 2 - . 
21:50 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas. 
- Ionosphere/Plasma mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 102 km (63 mi). 
 
1968 December 15 - . 
17:21 GMT - . 
Launch Site: 
Vandenberg. 
Launch Complex: 
Vandenberg SLC2E. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta N. 
- ESSA 8 - . 
 Payload: TOS F. Mass: 132 kg (291 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  3615 .  COSPAR: 1968-114A. Apogee: 1,464 km (909 mi). Perigee: 1,414 km (878 mi). Inclination: 102.00 deg. Period: 114.60 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1969 February 26 - . 
07:47 GMT - . 
Launch Site: 
Cape Canaveral. 
Launch Complex: 
Cape Canaveral LC17B. 
LV Family: 
Thor. 
Launch Vehicle: 
Thor Delta E1. 
- ESSA 9 - . 
 Payload: TOS G. Mass: 145 kg (319 lb). Nation: USA. 
Agency: ESSA. 
Program: Tiros. 
Class: Earth. 
 Type: Weather satellite. Spacecraft: TOS. 
 USAF Sat Cat:  3764 .  COSPAR: 1969-016A. Apogee: 1,505 km (935 mi). Perigee: 1,425 km (885 mi). Inclination: 101.80 deg. Period: 115.20 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).. 
 
1969 April 14 - . 
02:03 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas 2. 
- Ionosphere mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 101 km (62 mi). 
 
1969 April 14 - . 
05:19 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas 2. 
- Ionosphere mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 99 km (61 mi). 
 
1969 April 14 - . 
21:08 GMT - . 
Launch Site: 
Fort Churchill. 
LV Family: 
Arcas. 
Launch Vehicle: 
Boosted Arcas 2. 
- Ionosphere mission - . 
Nation: USA. 
Agency: ESSA, 
NASA. 
Apogee: 110 km (60 mi). 
 
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