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Thor Comsat
The Thor communication satellites are orbited by Telenor of Norway and provide television services to Scandinavia. Thor 1 satellite was originally orbited by British Satellite Broadcasting as Marcopolo 2. It was purchased on orbit in 1992 from BSB.
Country:
Norway.
Spacecraft:
HS 376.
Launch Vehicles:
Delta 6925,
Delta 7925,
Delta 7925-9.5.
Projects:
BSB.
Launch Sites:
Cape Canaveral.
Agency:
El Segundo,
Telenor.
1990 August 18 - .
00:42 GMT - .
Launch Site:
Cape Canaveral.
Launch Complex:
Cape Canaveral LC17B.
LV Family:
Thor.
Launch Vehicle:
Delta 6925.
- Thor 1 / BSB-R2 - .
Payload: Marco Polo 2. Mass: 1,220 kg (2,680 lb). Nation: Norway.
Agency: BSB.
Program: Thor Comsat.
Class: Communications.
Type: Civilian communications satellite. Spacecraft: HS 376.
USAF Sat Cat: 20762 . COSPAR: 1990-074A. Apogee: 35,794 km (22,241 mi). Perigee: 35,779 km (22,231 mi). Inclination: 0.00 deg. Period: 1,436.10 min.
UK DBS; 31 deg W. Direct broadcasting system. Expected operational life 12.5 yr. Owner/operator: British Sky Broadcasting Ltd, 6 Centaurs Business Park, Grant Way, Isleworth, Middlesex TW7 5QD. Sold on-orbit in 1992 to Telenor Norway and redesignated Thor 1. Positioned in geosynchronous orbit at 50 deg W in 1990; 31 deg W in 1991-1992; 1 deg W in 1992-1999 As of 3 September 2001 located at 0.72 deg W drifting at 0.001 deg E per day. As of 2007 Mar 9 located at 61.51W drifting at 3.830W degrees per day.
1997 May 20 - .
22:39 GMT - .
Launch Site:
Cape Canaveral.
Launch Complex:
Cape Canaveral LC17A.
LV Family:
Thor.
Launch Vehicle:
Delta 7925.
- Thor 2 - .
Payload: Thor 2A. Mass: 2,800 kg (6,100 lb). Nation: Norway.
Agency: Telenor.
Manufacturer: El Segundo.
Program: Thor Comsat.
Class: Communications.
Type: Civilian communications satellite. Spacecraft: HS 376.
USAF Sat Cat: 24808 . COSPAR: 1997-025A. Apogee: 35,793 km (22,240 mi). Perigee: 35,780 km (22,230 mi). Inclination: 0.00 deg. Period: 1,436.10 min. Geosynchronous. Stationed over 0.8W Positioned in geosynchronous orbit at 1 deg W in 1997-1999 As of 5 September 2001 located at 0.73 deg W drifting at 0.000 deg E per day. As of 2007 Mar 9 located at 0.76W drifting at 0.002W degrees per day..
1998 June 10 - .
00:35 GMT - .
Launch Site:
Cape Canaveral.
Launch Complex:
Cape Canaveral LC17A.
LV Family:
Thor.
Launch Vehicle:
Delta 7925-9.5.
- Thor 3 - .
Mass: 2,800 kg (6,100 lb). Nation: Norway.
Agency: Telenor.
Manufacturer: El Segundo.
Program: Thor Comsat.
Class: Communications.
Type: Civilian communications satellite. Spacecraft: HS 376.
USAF Sat Cat: 25358 . COSPAR: 1998-035A. Apogee: 35,798 km (22,243 mi). Perigee: 35,777 km (22,230 mi). Inclination: 0.10 deg. Period: 1,436.10 min.
The spacecraft was delivered to its final orbit in a complex series of five engine burns by three rocket stages. The Delta's second stage demonstrated its restart capability in 4 burns: Burn 1 placed the rocket and payload into a low circular orbit; Burn 2 raised the apogee to 1400 km; Burn 3 circularised the orbit at 1400 km. The second stage then separated, and Burn 4 lowered the spent stage's perigee to a low altitude to ensure the stage would decay quickly and not add to the space junk already on orbit. Stage 3 burned once to place the payload and its kick motor into a high 1400 km perigee geosynchronous transfer orbit. The Stage 4 Star 30 apogee kick motor circularised the spacecraft's orbit at geostationary altitude. Geostationary at 0.8 degrees W. Positioned in geosynchronous orbit at 1 deg W in 1998-1999 As of 4 September 2001 located at 0.83 deg W drifting at 0.000 deg E per day. As of 2007 Mar 9 located at 0.85W drifting at 0.002W degrees per day.
2008 February 11 - .
11:34 GMT - .
Launch Site:
Baikonur.
LV Family:
Proton.
Launch Vehicle:
Proton-M/Briz-M.
- Thor 5 - .
Mass: 1,940 kg (4,270 lb). Nation: Norway.
Agency: ILS.
Program: Thor Comsat.
Class: Communications.
Type: Military communications satellite. Spacecraft: Star bus.
USAF Sat Cat: 32487 . COSPAR: 2008-006A. Apogee: 35,796 km (22,242 mi). Perigee: 35,777 km (22,230 mi). Inclination: 0.10 deg. Period: 1,436.10 min. Ku-band light geostationary satellite operated by Telenor Satellite Broadcasting..
2009 October 29 - .
20:00 GMT - .
Launch Site:
Kourou.
Launch Complex:
Kourou ELA3.
LV Family:
Ariane 5.
Launch Vehicle:
Ariane 5ECA.
- Thor 6 - .
Payload: Spacebus 4000B2. Mass: 3,050 kg (6,720 lb). Nation: France.
Agency: Arianespace.
Program: Thor Comsat.
Class: Communications.
Type: Civilian communications satellite. Spacecraft: Spacebus 4000.
USAF Sat Cat: 36033 . COSPAR: 2009-058B. Apogee: 35,793 km (22,240 mi). Perigee: 35,780 km (22,230 mi). Inclination: 0.00 deg. Period: 1,436.10 min. Direct broadcast satellite stationed at 1 deg W..
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