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HS-376

January 01, 1970

The Boeing 376 (sometimes referred to as the BSS-376, and previously as the HS-376) is a communications satellite bus introduced in 1978 by Hughes Space and Communications Company. It was a spin-stabilized bus that the manufacturer falsely claims was the first standardized platform.[1][2] The Lockheed "Standard Agena" had been in use for more than two decades when the first HS-376 was launched.

Boeing 376
ManufacturerBoeing Satellite Development Center
Country of originUnited States
ApplicationsCommunications satellite
Specifications
Spacecraft typeSpin-stabilized
Power800 to 2,000 Watts
Production
StatusRetired
On order58
Built58
Launched58
Maiden launchAnik C1 April 12, 1985
Last launcheBird 1 September 27, 2003
Related spacecraft
Derived fromHS-333
DerivativesHS-393
← HS-333 Boeing 601 →


Design edit

The satellite bus was designed and manufactured by Hughes. This spin-stabilized platform had two main sections. The spinning section was kept rotating at 50 rpm to maintain attitude, and a despun section was used by the payload to maintain radio coverage.[3][4]

The spinning section included the apogee kick motor, most of the attitude control, the power subsystem and the command and telemetry subsystems. The despun section contained the communications payload, including the antennas and transponders.[3][4]

The stock version had a launch mass of 1,100 to 1,450 kg (2,430 to 3,200 lb), a mass of 540 to 790 kg (1,190 to 1,740 lb) after reaching geostationary orbit and an 8 to 10-year design life. When stowed for launch, its dimensions were 2.8 to 3.15 m (9 ft 2 in to 10 ft 4 in) in height and 2.16 m (7 ft 1 in) in diameter. With its solar panels fully extended its height was 6.6 to 8 m (22 to 26 ft).[5][6][4]

Its power system generated approximately 1,100 to 1,200 watts of power at beginning of life, thanks to two cylindrical solar panels. The bottom panel was retracted around the body and top panel for launch, and extended downwards for operation. It also had two NiCd batteries for solar eclipses.[5][6][4]

Versions edit

There were four variations of this platform:

  • HS-376: The original version of the platform was launched in 1977. It had a mass between 1.1 to 1.45 t (1.21 to 1.60 tons).[2]
  • HS-376L: The Longer life version of the platform was launched in 1991. It had reduced power of 700 Watts and reduced electronics weight, which allowed for increased station keeping propellant supply. This lengthened the design life to 13.5 years.[2][7][5]
  • HS-376HP: A Higher Power version of the platform was launched in 1995. It had a mass between 1.45 to 1.55 t (1.60 to 1.71 tons).[2]
  • HS-376W: The Wide version of the platform was launched in 1990. It was wider, more powerful and modernized electronics. It was a joint development with INPE. It had a diameter of 3.43 m (11.3 ft) and more power.[2][8][9]

Satellites edit

The HS-376 was a very successful satellite platform with 58 satellites ordered, built and launched. It was also the first satellite to launch from the Space Shuttle.[2]

Satellite Other names Operator Model Ordered Launch Launch vehicle Launch result Mass (kg) at... Remarks
Launch BOL
SBS 1 HS-376 1977 1980-11-15 Delta-3910/PAM-D Success 1117 540 [6][10]
SBS 2 HS-376 1977 1981-09-24 Delta-3910/PAM-D Success 1117 540 [6][10]
Westar 4 HS-376 1980 1982-02-26 Delta-3910/PAM-D Success 1100 582
Westar 5 HS-376 1982 1982-06-09 Delta-3910/PAM-D Success 1100 582
Anik D1 HS-376 1982-08-26 Delta-3920/PAM-D Success 1140 634
Anik C3 HS-376 1978 1982-11-11 Shuttle/PAM-D Success 1140 563
SBS 3 HS-376 1981 1982-11-11 Shuttle/PAM-D Success 1117 540 [6][10]
Anik C2 Nahuel I2 HS-376 1978 1983-06-18 Shuttle/PAM-D Success 1140 563
Palapa B1 Palapa Pacific 1 HS-376 1980 1983-06-18 Shuttle/PAM-D Success 1200 692 [4][11]
Galaxy 1 HS-376 1983-06-28 Delta-3920/PAM-D Success 1200 709
Telstar 301 Arabsat-1E HS-376 1980 1983-07-28 Delta-3920/PAM-D Success 1140 653
Galaxy 2 HS-376 1983-09-22 Delta-3920/PAM-D Success 1200 709
Palapa B2 HS-376 1980 1984-02-03 Shuttle/PAM-D PAM ignition failed, satellite recovered 1200 692 Launched along Westar 6. PAM-D failed to ignite, Shuttle recovered the satellite. Was relaunched as Palapa B2R.[4][11]
Westar 6 HS-376 1984-02-03 Shuttle/PAM-D PAM ignition failed, satellite recovered 1244 582 Launched along Palapa B2. PAM-D failed to ignite, Shuttle recovered the satellite. Was relaunched as AsiaSat 1.
SBS 4 HGS 5 HS-376 1983 1984-08-30 Shuttle/PAM-D Success 1117 540 [6][10]
Telstar 302 HS-376 1980 1984-08-30 Shuttle/PAM-D Success 1140 653
Galaxy 3 HS-376 1984-09-21 Delta-3920/PAM-D Success 1200 709
Anik D2 Satcom 4R
Arabsat 1D		 HS-376 1984-11-08 Shuttle/PAM-D Success 1140 634
Brasilsat-A1 SBTS 1 HS-376 1982 1985-02-08 Ariane 3 Success 1195 —
Anik C1 Nahuel I1
Brasil 1T		 HS-376 1978 1985-04-12 Shuttle/PAM-D Success 1140 563
Morelos 1 HS-376 1982 1985-06-17 Shuttle/PAM-D Success 1140 647
Telstar 303 HS-376 1980 1985-06-17 Shuttle/PAM-D Success 1140 653
Aussat A1 Optus A1 HS-376 1982 1985-08-27 Shuttle/PAM-D Success 1250 654
Aussat A2 Optus A2 HS-376 1982 1985-11-27 Shuttle/PAM-D Success 1250 654
Morelos 2 HS-376 1982 1985-11-27 Shuttle/PAM-D Success 1140 647
Brasilsat-A2 SBTS 2 HS-376 1982 1986-03-28 Ariane 3 Success 1195 —
Palapa B2P Palapa B3
Agila 1		 HS-376 1984 1987-03-20 Delta-3920/PAM-D Success 1200 692 [4][11]
Aussat A3 Optus A3 HS-376 1982 1987-09-16 Ariane 3 Success 1250 696
SBS 5 HS-376 1983 1988-09-08 Ariane 3 Success 1117 540 [6][10]
Marcopolo 1 Sirius 1
Sirius W		 HS-376 1987 1989-08-27 Delta-4925 Success 1250 660
AsiaSat 1 HS-376 1990-04-07 Long March 3 Success 1244 582 Was Westar 6, but the launch on Space Shuttle failed. It was recovered and launched again as AsiaSat 1.
Palapa B2R NewSat 1 HS-376 1990-04-13 Delta-6925-8 Success 1200 692 Was Palapa B2, but the launch on Space Shuttle failed. It was recovered and launched again as Palapa B2R.[4][11]
Marcopolo 2 Thor 1 HS-376 1987 1990-08-18 Delta-6925-8 Success 1250 662
Prowler HS-376 1990-11-15 Shuttle/PAM-D Success — —
Galaxy 5 HS-376 1989 1992-03-14 Atlas I Success 1390 788
Palapa B4 HS-376 1992-05-14 Delta-7925-8 Success 1200 692 [4]
Galaxy 1R HS-376 1989 1992-08-22 Atlas I Failure 1390 788 Launch failure
Galaxy 6 Westar 6S HS-376 1983 1992-10-12 Ariane-44L Success 1390 709
Thaicom 1 Thaicom 1A HS-376L 1991 1993-12-18 Ariane-44L Success 1080 629 [5]
Galaxy 1R2 HS-376 1992 1994-02-19 Delta-7925-8 Success 1390 788
APSTAR-1 ZX-5E HS-376 1992 1994-07-21 Long March 3 Success 1400 726
Brasilsat B1 HS-376W 1990 1994-08-10 Ariane-44LP Success 1757 1052 [8][9]
Thaicom 2 HS-376L 1991 1994-10-07 Ariane-44L Success 1080 629 [5]
Brasilsat B2 HS-376W 1990 1995-03-28 Ariane-44LP Success 1757 1052 [8][9]
MEASAT-1 AFRICASAT-1 HS-376 1994 1996-01-12 Ariane-44L Success 1450 886
Galaxy 9 HS-376 1995 1996-05-24 Delta-7925 Success 1390 788
APSTAR-1A ZX-5D HS-376 1995 1996-07-03 Long March 3 Success 1400 726
ZX 7 Chinasat-7
HGS 2		 HS-376 1995 1996-08-18 Long March 3 Failure 1384 734 Launch failure
MEASAT-2 AFRICASAT-2 HS-376 1994 1996-11-13 Ariane-44L Success 1450 886
BSAT-1a HS-376 1993 1997-04-16 Ariane-44LP Success 1236 723 [3]
Thor 2 HS-376HP 1995 1997-05-20 Delta-7925 Success 1467 853
Brasilsat B3 HS-376W 1995 1998-02-04 Ariane-44LP Success 1757 1052 [8][9]
BSAT-1b HS-376 1993 1998-04-28 Ariane-44P Success 1236 723 [3]
Thor 3 HS-376HP 1997 1998-06-10 Delta-7925 Success 1451 853
Sirius 3 HS-376HP 1997 1998-10-05 Ariane-44L Success 1465 815
Bonum 1 HS-376HP 1997 1998-11-22 Delta-7925 Success 1425 793
Brasilsat B4 HS-376W 1998 2000-08-17 Ariane-44LP Success 1757 1052 [8][9]
Astra 2D HS-376HP 1999 2000-12-20 Ariane 5G Success 1445 824
Astra 3A HS-376HP 2000 2002-03-29 Ariane-44L Success 1514 908
eBird 1 Eurobird 3
Eutelsat 33A
Eutelsat 31A		 HS-376HP 2000 2003-09-27 Ariane 5G Success 1530 895

See also edit

References edit

  1. ^ . Boeing Satellite Development Center. Archived from the original on 2010-03-05. Retrieved 2016-08-16.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  2. ^ a b c d e f Krebs, Gunter Dirk (2016-04-21). "Hughes / Boeing: HS-376 / BSS-376". Gunter's Space Page. Retrieved 2016-08-16.
  3. ^ a b c d . Boeing Satellite Development Center. Archived from the original on 2010-02-07. Retrieved 2016-08-18.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  4. ^ a b c d e f g h i . Boeing Satellite Development Center. Archived from the original on 2010-02-07. Retrieved 2016-08-18.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  5. ^ a b c d e . Boeing Satellite Development Center. Archived from the original on 2010-02-07. Retrieved 2016-08-18.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  6. ^ a b c d e f g . Boeing Satellite Development Center. Archived from the original on 2010-02-07. Retrieved 2016-08-18.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  7. ^ Krebs, Gunter Dirk (2016-08-08). "Thaicom 1, 2". Gunter's Space Page. Retrieved 2016-08-18.
  8. ^ a b c d e . Boeing Satellite Development Center. Archived from the original on 2010-02-07. Retrieved 2016-08-18.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  9. ^ a b c d e Krebs, Gunter Dirk (2016-04-17). "Brasilsat B 1, 2, 3, 4". Gunter's Space Page. Retrieved 2016-08-18.
  10. ^ a b c d e Krebs, Gunter Dirk (2016-04-17). "SBS 1, 2, 3, 4, 5 / HGS 5". Gunter's Space Page. Retrieved 2016-08-18.
  11. ^ a b c d Krebs, Gunter Dirk (2016-04-17). "Palapa B1, B2, B2P, B2R, B4 / Palapa Pacific / Agila 1 / NewSat 1". Gunter's Space Page. Retrieved 2016-08-18.

January 01, 1970
boeing, sometimes, referred, previously, communications, satellite, introduced, 1978, hughes, space, communications, company, spin, stabilized, that, manufacturer, falsely, claims, first, standardized, platform, lockheed, standard, agena, been, more, than, dec. The Boeing 376 sometimes referred to as the BSS 376 and previously as the HS 376 is a communications satellite bus introduced in 1978 by Hughes Space and Communications Company It was a spin stabilized bus that the manufacturer falsely claims was the first standardized platform 1 2 The Lockheed Standard Agena had been in use for more than two decades when the first HS 376 was launched Boeing 376ManufacturerBoeing Satellite Development CenterCountry of originUnited StatesApplicationsCommunications satelliteSpecificationsSpacecraft typeSpin stabilizedPower800 to 2 000 WattsProductionStatusRetiredOn order58Built58Launched58Maiden launchAnik C1 April 12 1985Last launcheBird 1 September 27 2003Related spacecraftDerived fromHS 333DerivativesHS 393 HS 333 Boeing 601 Contents 1 Design 2 Versions 3 Satellites 4 See also 5 ReferencesDesign editThe satellite bus was designed and manufactured by Hughes This spin stabilized platform had two main sections The spinning section was kept rotating at 50 rpm to maintain attitude and a despun section was used by the payload to maintain radio coverage 3 4 The spinning section included the apogee kick motor most of the attitude control the power subsystem and the command and telemetry subsystems The despun section contained the communications payload including the antennas and transponders 3 4 The stock version had a launch mass of 1 100 to 1 450 kg 2 430 to 3 200 lb a mass of 540 to 790 kg 1 190 to 1 740 lb after reaching geostationary orbit and an 8 to 10 year design life When stowed for launch its dimensions were 2 8 to 3 15 m 9 ft 2 in to 10 ft 4 in in height and 2 16 m 7 ft 1 in in diameter With its solar panels fully extended its height was 6 6 to 8 m 22 to 26 ft 5 6 4 Its power system generated approximately 1 100 to 1 200 watts of power at beginning of life thanks to two cylindrical solar panels The bottom panel was retracted around the body and top panel for launch and extended downwards for operation It also had two NiCd batteries for solar eclipses 5 6 4 Versions editThere were four variations of this platform HS 376 The original version of the platform was launched in 1977 It had a mass between 1 1 to 1 45 t 1 21 to 1 60 tons 2 HS 376L The Longer life version of the platform was launched in 1991 It had reduced power of 700 Watts and reduced electronics weight which allowed for increased station keeping propellant supply This lengthened the design life to 13 5 years 2 7 5 HS 376HP A Higher Power version of the platform was launched in 1995 It had a mass between 1 45 to 1 55 t 1 60 to 1 71 tons 2 HS 376W The Wide version of the platform was launched in 1990 It was wider more powerful and modernized electronics It was a joint development with INPE It had a diameter of 3 43 m 11 3 ft and more power 2 8 9 Satellites editThe HS 376 was a very successful satellite platform with 58 satellites ordered built and launched It was also the first satellite to launch from the Space Shuttle 2 Satellite Other names Operator Model Ordered Launch Launch vehicle Launch result Mass kg at Remarks Launch BOL SBS 1 HS 376 1977 1980 11 15 Delta 3910 PAM D Success 1117 540 6 10 SBS 2 HS 376 1977 1981 09 24 Delta 3910 PAM D Success 1117 540 6 10 Westar 4 HS 376 1980 1982 02 26 Delta 3910 PAM D Success 1100 582 Westar 5 HS 376 1982 1982 06 09 Delta 3910 PAM D Success 1100 582 Anik D1 HS 376 1982 08 26 Delta 3920 PAM D Success 1140 634 Anik C3 HS 376 1978 1982 11 11 Shuttle PAM D Success 1140 563 SBS 3 HS 376 1981 1982 11 11 Shuttle PAM D Success 1117 540 6 10 Anik C2 Nahuel I2 HS 376 1978 1983 06 18 Shuttle PAM D Success 1140 563 Palapa B1 Palapa Pacific 1 HS 376 1980 1983 06 18 Shuttle PAM D Success 1200 692 4 11 Galaxy 1 HS 376 1983 06 28 Delta 3920 PAM D Success 1200 709 Telstar 301 Arabsat 1E HS 376 1980 1983 07 28 Delta 3920 PAM D Success 1140 653 Galaxy 2 HS 376 1983 09 22 Delta 3920 PAM D Success 1200 709 Palapa B2 HS 376 1980 1984 02 03 Shuttle PAM D PAM ignition failed satellite recovered 1200 692 Launched along Westar 6 PAM D failed to ignite Shuttle recovered the satellite Was relaunched as Palapa B2R 4 11 Westar 6 HS 376 1984 02 03 Shuttle PAM D PAM ignition failed satellite recovered 1244 582 Launched along Palapa B2 PAM D failed to ignite Shuttle recovered the satellite Was relaunched as AsiaSat 1 SBS 4 HGS 5 HS 376 1983 1984 08 30 Shuttle PAM D Success 1117 540 6 10 Telstar 302 HS 376 1980 1984 08 30 Shuttle PAM D Success 1140 653 Galaxy 3 HS 376 1984 09 21 Delta 3920 PAM D Success 1200 709 Anik D2 Satcom 4RArabsat 1D HS 376 1984 11 08 Shuttle PAM D Success 1140 634 Brasilsat A1 SBTS 1 HS 376 1982 1985 02 08 Ariane 3 Success 1195 Anik C1 Nahuel I1Brasil 1T HS 376 1978 1985 04 12 Shuttle PAM D Success 1140 563 Morelos 1 HS 376 1982 1985 06 17 Shuttle PAM D Success 1140 647 Telstar 303 HS 376 1980 1985 06 17 Shuttle PAM D Success 1140 653 Aussat A1 Optus A1 HS 376 1982 1985 08 27 Shuttle PAM D Success 1250 654 Aussat A2 Optus A2 HS 376 1982 1985 11 27 Shuttle PAM D Success 1250 654 Morelos 2 HS 376 1982 1985 11 27 Shuttle PAM D Success 1140 647 Brasilsat A2 SBTS 2 HS 376 1982 1986 03 28 Ariane 3 Success 1195 Palapa B2P Palapa B3Agila 1 HS 376 1984 1987 03 20 Delta 3920 PAM D Success 1200 692 4 11 Aussat A3 Optus A3 HS 376 1982 1987 09 16 Ariane 3 Success 1250 696 SBS 5 HS 376 1983 1988 09 08 Ariane 3 Success 1117 540 6 10 Marcopolo 1 Sirius 1Sirius W HS 376 1987 1989 08 27 Delta 4925 Success 1250 660 AsiaSat 1 HS 376 1990 04 07 Long March 3 Success 1244 582 Was Westar 6 but the launch on Space Shuttle failed It was recovered and launched again as AsiaSat 1 Palapa B2R NewSat 1 HS 376 1990 04 13 Delta 6925 8 Success 1200 692 Was Palapa B2 but the launch on Space Shuttle failed It was recovered and launched again as Palapa B2R 4 11 Marcopolo 2 Thor 1 HS 376 1987 1990 08 18 Delta 6925 8 Success 1250 662 Prowler HS 376 1990 11 15 Shuttle PAM D Success Galaxy 5 HS 376 1989 1992 03 14 Atlas I Success 1390 788 Palapa B4 HS 376 1992 05 14 Delta 7925 8 Success 1200 692 4 Galaxy 1R HS 376 1989 1992 08 22 Atlas I Failure 1390 788 Launch failure Galaxy 6 Westar 6S HS 376 1983 1992 10 12 Ariane 44L Success 1390 709 Thaicom 1 Thaicom 1A HS 376L 1991 1993 12 18 Ariane 44L Success 1080 629 5 Galaxy 1R2 HS 376 1992 1994 02 19 Delta 7925 8 Success 1390 788 APSTAR 1 ZX 5E HS 376 1992 1994 07 21 Long March 3 Success 1400 726 Brasilsat B1 HS 376W 1990 1994 08 10 Ariane 44LP Success 1757 1052 8 9 Thaicom 2 HS 376L 1991 1994 10 07 Ariane 44L Success 1080 629 5 Brasilsat B2 HS 376W 1990 1995 03 28 Ariane 44LP Success 1757 1052 8 9 MEASAT 1 AFRICASAT 1 HS 376 1994 1996 01 12 Ariane 44L Success 1450 886 Galaxy 9 HS 376 1995 1996 05 24 Delta 7925 Success 1390 788 APSTAR 1A ZX 5D HS 376 1995 1996 07 03 Long March 3 Success 1400 726 ZX 7 Chinasat 7HGS 2 HS 376 1995 1996 08 18 Long March 3 Failure 1384 734 Launch failure MEASAT 2 AFRICASAT 2 HS 376 1994 1996 11 13 Ariane 44L Success 1450 886 BSAT 1a HS 376 1993 1997 04 16 Ariane 44LP Success 1236 723 3 Thor 2 HS 376HP 1995 1997 05 20 Delta 7925 Success 1467 853 Brasilsat B3 HS 376W 1995 1998 02 04 Ariane 44LP Success 1757 1052 8 9 BSAT 1b HS 376 1993 1998 04 28 Ariane 44P Success 1236 723 3 Thor 3 HS 376HP 1997 1998 06 10 Delta 7925 Success 1451 853 Sirius 3 HS 376HP 1997 1998 10 05 Ariane 44L Success 1465 815 Bonum 1 HS 376HP 1997 1998 11 22 Delta 7925 Success 1425 793 Brasilsat B4 HS 376W 1998 2000 08 17 Ariane 44LP Success 1757 1052 8 9 Astra 2D HS 376HP 1999 2000 12 20 Ariane 5G Success 1445 824 Astra 3A HS 376HP 2000 2002 03 29 Ariane 44L Success 1514 908 eBird 1 Eurobird 3Eutelsat 33AEutelsat 31A HS 376HP 2000 2003 09 27 Ariane 5G Success 1530 895See also edit nbsp Spaceflight portal Boeing 601 Boeing Satellite Development CenterReferences edit Boeing 376 Boeing Satellite Development Center Archived from the original on 2010 03 05 Retrieved 2016 08 16 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link a b c d e f Krebs Gunter Dirk 2016 04 21 Hughes Boeing HS 376 BSS 376 Gunter s Space Page Retrieved 2016 08 16 a b c d BSAT 1 Boeing Satellite Development Center Archived from the original on 2010 02 07 Retrieved 2016 08 18 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link a b c d e f g h i Palapa B Boeing Satellite Development Center Archived from the original on 2010 02 07 Retrieved 2016 08 18 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link a b c d e THAICOM Boeing Satellite Development Center Archived from the original on 2010 02 07 Retrieved 2016 08 18 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link a b c d e f g SBS Boeing Satellite Development Center Archived from the original on 2010 02 07 Retrieved 2016 08 18 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link Krebs Gunter Dirk 2016 08 08 Thaicom 1 2 Gunter s Space Page Retrieved 2016 08 18 a b c d e Brasilsat B Boeing Satellite Development Center Archived from the original on 2010 02 07 Retrieved 2016 08 18 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link a b c d e Krebs Gunter Dirk 2016 04 17 Brasilsat B 1 2 3 4 Gunter s Space Page Retrieved 2016 08 18 a b c d e Krebs Gunter Dirk 2016 04 17 SBS 1 2 3 4 5 HGS 5 Gunter s Space Page Retrieved 2016 08 18 a b c d Krebs Gunter Dirk 2016 04 17 Palapa B1 B2 B2P B2R B4 Palapa Pacific Agila 1 NewSat 1 Gunter s Space Page Retrieved 2016 08 18 Retrieved from https en wikipedia org w index php title HS 376 amp oldid 1199502642, wikipedia, wiki, book, books, library,

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