Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Wikipedia

Boeing 702

Boeing 702 is a communication satellite bus family designed and manufactured by the Boeing Satellite Development Center, and flown from the late-1990s into the 2020s. It covers satellites massing from 1,500 kg (3,300 lb) to 6,100 kg (13,400 lb) with power outputs from 3 to 18 kW and can carry up to approximately 100 high-power transponders.[1]

Boeing Space Systems (BSS-702) Bus
WGS (Wideband Global Satcom) satellite
ManufacturerBoeing Defense, Space & Security
Country of originUnited States
ApplicationsCommunications
Specifications
Launch mass1,500 to 6,100 kg (3,300 to 13,400 lb)
Payload capacity200 to 1,620 kg (440 to 3,570 lb)
Power3 to 18 kW
RegimeGeostationary
Design life15 years
Production
StatusIn production
On order60
Launched47
Lost3
Maiden launchDecember 22, 1999, (Galaxy XI)
Last launchAugust 6, 2019, (ViaSat-2)
← BSS-601

The baseline Boeing 702 is compatible with several orbital launch systems, including Atlas V, Ariane 5, Delta IV, Falcon 9, Proton, and the Sea Launch-operated Zenit 3SL.[1][2]

Platform versions

edit

After the introduction of the original 702 in 1997, the platform has been continually updated. New members of the platform have been introduced through the years, which allowed the common systems and approaches to span the whole range of mass and power for geosynchronous orbit satellites. The family currently spans four different members: the 702HP for high-power applications, the 702HP-GEO for mobile-telephone services, the 702MP for medium-power requirements and the 702SP for small satellites.[1]

Boeing 702 platform family[1][3]
Platform 702HP 702HP-GEO 702MP 702SP
Year of introduction 1997 1997 2009 2012
First launch 1999 2000 2012 2015
First customer PanAmSat SkyTerra Intelsat Asia Broadcast Satellite and SatMex (joint order)
Payload mass 600 kg (1,300 lb) to 1,620 kg (3,570 lb) 1,250 kg (2,760 lb) to 1,480 kg (3,260 lb) 300 kg (660 lb) to 650 kg (1,430 lb) 200 kg (440 lb) to 680 kg (1,500 lb)
Power, kW >12 8–10 6–12 3–8
Spacecraft mass 5,400 kg (11,900 lb) to 5,900 kg (13,000 lb) 5,100 kg (11,200 lb) to 5,900 kg (13,000 lb) 5,800 kg (12,800 lb) to 6,100 kg (13,400 lb) 1,500 kg (3,300 lb) to 2,300 kg (5,100 lb)

702HP

edit

The high-power 702 platform was originally announced in October 1998. With the 2009 introduction of the 702MP "mid-power version", the legacy Boeing 702 platform, which had been continuously evolved, was designated the Boeing 702HP for "high-power".[4] According to Moog-ISP, the 702HP platform uses its bipropellant thrusters.[5]

The SES-9, a 702HP model, launched aboard the Falcon 9 Flight 22 on 4 March 2016.

702 GEO-Mobile

edit

Developed in 1997 for their launch customer Thuraya, it is a special version of the 702HP platform with a 12.25-meter deployable antenna, onboard digital signal processing and beamforming. It is a specialized platform for direct service of mobile users.[6]

702MP

edit

In 2009 Boeing introduced the 702MP platform, a mid-power solution based on the high-power 702HP platform. The 702MP provides the high-capability features inherent in the flight-proven Boeing 702HP satellite model, but with a substantially updated satellite bus structure and simplified propulsion system.[7] The 702MP was designed for satellites in the middle-level power ranges, supporting payloads ranging from 6 to 12 kilowatts. According to Moog-ISP, the 702MP platform uses both its bipropellant thrusters and LEROS liquid apogee engine.[5]

Intelsat is the lead customer for the 702MP. Boeing built Intelsat 21, Intelsat 22, Intelsat 27 and Intelsat 29e (the first EpicNG) satellites based on the platform.[8] In May 2013, Intelsat ordered an additional four EpicNG satellites from Boeing. The first of this new order will be Intelsat 33e.[9] In July 2014, Boeing announced the order of a ninth Intelsat 702MP order, the EpicNG Intelsat 35e.[10]

On January 15, 2015, the SatNews Publishers disclosed Boeing's second 702MP customer. New York Broadband LLC would order an L-band satellite Silkwave 1 to be fully leased to CMMB Vision of Hong Kong.[11] The satellite is expected to enter service in 2018 in the 105° east orbital slot to replace AsiaStar.[12][13]

702SP

edit

By 2005, Boeing was offering a Xenon Electrostatic ion thruster System (XIPS) option for the 702 satellite system.[14] XIPS is 10 times more efficient than conventional liquid-fuel systems. On a XIPS equipped 702 satellite, four 25 cm (9.8 in) thrusters provide economical station keeping, needing only 5 kg (11 lb) of fuel per year, "a fraction of what bipropellant or arcjet systems consume".[14] An XIPS-equipped satellite can be used for final orbit insertion, conserving even more payload mass, as compared to using a traditional on-board liquid apogee engine.[14][15]

Beginning in 2012, Boeing began manifesting all-electric propulsion commsats on the 702SP XIPS propulsion bus for eventual location in geosynchronous orbit. These satellites were the first to be launched with the intent to fully position the satellites using electric propulsion, thus requiring 4–6 months following launch to ready the satellite for its communication mission, but at substantial reduction in launch mass and, therefore, launch cost.[2][15]

As of March 2014, Boeing had sold four of the 702SP satellites to Asia Broadcast Satellite (ABS) of Hong Kong and Mexico's SatMex, with the first two commsats planned for a paired launch in early 2015.[16]

In November 2014, Boeing released information that two of the 702SP satellites they have built—ABS-3A and Eutelsat 115 West B—had completed manufacture and had been stacked conjoined as they prepared for a launch on a SpaceX Falcon 9 vehicle in early 2015. This was to be Boeing's first conjoined launch of two commsats.[17] The two commsats were launched aboard a SpaceX rocket from Cape Canaveral, Florida, at 3:50AM UTC on 2 March 2015 (10:50PM EST on 1 March 2015).

In February 2014, SES announced that it had ordered a Boeing 702SP-based sat for SES-15.[18]

In March 2014, Boeing disclosed an early-2013 order by an unnamed U.S. government agency for three 702SP spacecraft.[19]

In June 2015, Asia Broadcast Satellite (ABS) ordered an additional 702SP, ABS-8, planned to be launched by late 2017, in part because they were well satisfied with performance of ABS-3A, even before it reached its operative orbit. When launched on a Falcon 9, the total investment for ABS was sufficiently low that it would be acceptable even if another satellite to pair on the launch was not added.[20] ABS later cancelled the order after failing to successfully finance the project, in part related to changes to the mechanisms of the Ex-Im Bank during 2015. As of 2015, Boeing and ABS considering other business agreement options.[21][needs update]

Customers

edit
Customer 702HP Satellites 702HP GEO-Mobile 702MP Satellites 702SP Satellites Comments
Asia Broadcast Satellite
DirecTV
Eutelsat
Global IP Cayman
Hughes Communications
Inmarsat
Intelsat
Plus 3 unnamed EpicNG
Mexican Government
New Skies
plus 2 options
New York Broadband LLC Silkwave 1 (NYBBSat 1)[11][13]
PanAmSat
Telesat Canada
SES
SkyTerra
Thuraya
Unnamed U.S. Government agency 3 Unspecified Satellites[19]
United States Air Force Wideband Global SATCOM system
ViaSat
XM Satellite Radio

Orders and launches

edit
Customer Satellite Ordered Launched Result Rocket Model Launch mass (kg) Mass at BOL Notes and references
PanAmSat Galaxy XI 1997 1999-12-22 Success Ariane 44L BSS-702 (concentrator arrays) 4488 2775 degradation of solar concentrators - long term power loss [3]
Thuraya Thuraya 1 1997 2000-10-21 Success Zenit-3SL 702HP-GEO (Concentrator Arrays) 5108 3200 degradation of solar concentrators - long term power loss[3]
PanAmSat Intelsat 1R
(formerly PAS-1R and Galaxy XIV)		 1997 2000-11-16 Success Ariane 5 G BSS-702 (concentrator arrays) 4758 2990 degradation of solar concentrators - long term power loss[3]
Telesat Canada Anik F1 1998 2000-11-21 Success Ariane 44L BSS-702 (concentrator arrays) 4711 2950 degradation of solar concentrators - long term power loss[3]
XM Satellite Radio XM-2 (Roll) 1998 2001-03-18 Success Zenit-3SL BSS-702 (concentrator arrays) 4682 2950 degradation of solar concentrators - long term power loss[3][30]
XM Satellite Radio XM-1 (Rock) 1998 2001-05-08 Success Zenit-3SL BSS-702 (concentrator arrays) 4682 2950 degradation of solar concentrators - long term power loss[3][30]
PanAmSat Galaxy III-C
(formerly PAS 9 and Galaxy XIII)		 1997 2002-06-15 Success Zenit-3SL BSS-702HP 4810 2835 [3]
Thuraya Thuraya 2 1997 2003-06-10 Success Zenit-3SL 702HP-GEO 5177 3200 [3]
Telesat Canada Anik F2 2000 2004-07-18 Success Ariane 5 G+ BSS-702HP 5950 3805 [3]
XM Satellite Radio MX-3 (Rhythm) 2003 2005-03-01 Success Zenit-3SL BSS-702HP 4703 [31]
Hughes Communications Spaceway F1 1999 2005-04-26 Success Zenit-3SL BSS-702HP 6080 3832 [3]
Hughes Communications Spaceway F2 1999 2005-11-16 Success Ariane 5 ECA BSS-702HP 6116 3832 [3]
XM Satellite Radio XM-4 (Blues) 2003 2006-10-30 Success Zenit-3SL BSS-702HP 5193 [31]
New Skies NSS-8 2001 2007-01-30 Failure Zenit-3SL BSS-702HP 5920 3800 Plus 2 options[3]
DirecTV DirecTV-10 2004 2007-07-07 Success Proton-M / Briz-M BSS-702HP 5893 3700 [3]
Hughes Communications Spaceway F3 1999 2007-08-14 Success Ariane 5 ECA BSS-702HP 6116 3832 [3]
United States Air Force WGS 1 (USA 195) 2002 2007-10-11 Success Atlas V (421) BSS-702HP 5987 [28]
Thuraya Thuraya 3 2002 2008-01-15 Success Zenit-3SL 702HP-GEO 5250 3200 [3]
DirecTV DirecTV-11 2004 2008-03-19 Success Zenit-3SL BSS-702HP 5923 3700 [3]
United States Air Force WGS 2 (USA 204) 2002 2009-04-04 Success Atlas V (421) BSS-702HP 5987 [28]
United States Air Force WGS 3 (USA 211) 2002 2009-12-06 Success Delta IV M+(5,4) BSS-702HP 5987 [28]
DirecTV DirecTV-12 2004 2009-12-29 Success Proton-M / Briz-M BSS-702HP 6060 3700 [3]
SkyTerra SkyTerra-1 (ex MSV 1) 2006 2010-11-14 Success Proton-M / Briz-M 702HP-GEO 5390 3200 [3]
United States Air Force WGS 4 (USA 233) 2006 2012-01-20 Success Delta IV M+(5,4) BSS-702HP [28]
Intelsat Intelsat 22 2009 2012-03-25 Success Proton-M / Briz-M BSS-702MP 6199 [24]
Intelsat Intelsat 21 2009 2012-08-19 Success Zenit-3SL BSS-702MP 5984 [24]
Intelsat Intelsat 27 2010 2013-02-01 Failure Zenit-3SL BSS-702MP 6241 [24]
United States Air Force WGS 5 2006 2013-05-25 Success Delta IV M+(5,4) BSS-702HP [28]
United States Air Force WGS 6 2007 2013-08-08 Success Delta IV M+(5,4) BSS-702HP [28]
Inmarsat Inmarsat-5 F1 2010 2013-12-08 Success Proton-M / Briz-M BSS-702HP 6070 3750 [22]
Inmarsat Inmarsat-5 F2 2010 2015-02-01 Success Proton-M / Briz-M BSS-702HP 6070 3750 [22]
Asia Broadcast Satellite ABS-3A 2012 2015-03-02 Success Falcon 9 v1.1 BSS-702SP 1954 [3]
Eutelsat Eutelsat 115 West B (ex SATMEX 7) 2012 2015-03-02 Success Falcon 9 v1.1 BSS-702SP 2205 [3]
Mexican Government MEXSAT 1 (Centenario) 2010 2015-05-16 Failure Proton-M / Briz-M 702HP-GEO 5325 [25]
United States Air Force WGS 7 2011 2015-07-24 Success Delta IV M+(5,4) BSS-702HP [28]
Inmarsat Inmarsat-5 F3 2010 2015-08-28 Success Proton-M / Briz-M BSS-702HP 6070 3750 [22]
Mexican Government MEXSAT 2 (Morelos 3) 2010 2015-10-02 Success Atlas V (421) 702HP-GEO 5325
Intelsat Intelsat 29e 2012 2016-01-27 Success Ariane 5 ECA BSS-702MP 6552 Developed a fuel leak in April 2019, during attempts to recover satellite it experienced another anomaly and debris was spotted around satellite. Declared lost.[32][24]
SES SES-9 2012 2016-03-04 Success Falcon 9 FT BSS-702HP 5330 [26][27]
Asia Broadcast Satellite ABS-2A 2012 2016-06-15 Success Falcon 9 FT BSS-702SP [3]
Eutelsat Eutelsat 117 West B (ex SATMEX 9) 2012 2016-06-15 Success Falcon 9 FT BSS-702SP 1963 [3]
Intelsat Intelsat 33e 2013 2016-08-24 Success Ariane 5 ECA BSS-702MP Satellite broke up 19 October 2024.[33][24]
United States Air Force WGS 8 2011 2016-12-07 Success Delta IV M+(5,4) BSS-702HP [28]
United States Air Force WGS 9 2012 2017-03-08 Success Delta IV M+(5,4) BSS-702HP [28]
SES SES-15 2015 2017-05-18 Success Soyuz ST-B / Fregat-MT BSS-702SP 2300 [18]
Inmarsat Inmarsat-5 F4 2013 2017-05-15 Success Falcon 9 FT BSS-702HP 6070 3750 [23]
ViaSat ViaSat-2 2013 2017-06-01 Success Ariane 5 ECA BSS-702HP 6400 [29]
Intelsat Intelsat 35e 2014 2017-07-05 Success Falcon 9 FT BSS-702MP [10]
Intelsat Intelsat 37e 2013 2017-09-17 Success Ariane 5 ECA BSS-702MP [3]
Intelsat Horizons-3e 2015 2018-09-25 Success Ariane 5 ECA BSS-702MP [3]
United States Air Force WGS 10 2012 2018-03-19 Success Delta IV M+(5,4) BSS-702HP [28]
Spacecom Amos-17 2016 2019-08-06 Success Falcon 9 FT BSS-702MP 6500 [3]
SKY Perfect JSAT JCSat 18/Kacific 1 2017 2019-12-16 Success Falcon 9 FT BSS-702MP 6800 [3]
New York Broadband LLC Silkwave 1 (NYBBSat 1) 2015 TBD Planned BSS-702MP ~6000 [11][13]
Intelsat Intelsat TBD 2013 202x Planned BSS-702MP [3]
SES SES-20 2020 2022 Planned BSS-702SP [3]
SES SES-21 2020 2022 Planned BSS-702SP [3]
ViaSat ViaSat-3 Americas 2016 2023-05-01 Partial failure Falcon Heavy BSS-702HP 6418 Experienced antenna-deployment anomaly that limited throughput to <10%.[3]
ViaSat ViaSat-3 EMEA 2016 2025 Planned Atlas V 551 BSS-702HP 6400 [3]
ViaSat ViaSat-3 APAC 2019 2025 Planned Ariane 64 BSS-702HP 6400 [3]
ViaSat ViaSat-3 (option) TBA BSS-702HP 6400 Option[3]
United States Air Force WGS 11 2019 2023 Planned BSS-702X [28]
Unnamed U.S. Government agency (US Gov 1) 2013 TBA TBA BSS-702SP [3][19]
Unnamed U.S. Government agency (US Gov 2) 2013 TBA TBA BSS-702SP [3][19]
Unnamed U.S. Government agency (US Gov 3) 2013 TBA TBA BSS-702SP [3][19]
APMT APMT 1 1998 Cancelled Cancelled Long March 3B 702HP-GEO (Concentrator Arrays) Order cancelled after manufacturer failed to get an export license for launching on a Chinese rocket [3]
APMT APMT 2 1998 Cancelled Cancelled Long March 3B 702HP-GEO (Concentrator Arrays) Order cancelled after manufacturer failed to get an export license for launching on a Chinese rocket [3]
Asia Broadcast Satellite ABS-8 2015 TBD Cancelled Falcon 9 FT BSS-702SP Order cancelled due to the U.S. Export-Import Bank's loss of its operating charter due to congressional opposition[3]
Global IP Cayman GiSAT-1 2016 TBD Cancelled BSS-702MP 6000 Order cancelled after the company was the center of controversies, as Chinese investors had taken control of Global IP.[3][34]
Mobile Satellite Ventures MSV SA 2006 Cancelled Cancelled 702HP-GEO 5400 3200 [3]
SkyTerra SkyTerra 2 (ex MSV 2) 2006 Cancelled Cancelled Proton-M / Briz-M 702HP-GEO 5400 3200 [3]

References

edit
  1. ^ a b c d "Boeing Satellites". Boeing. Retrieved 2015-08-19.
  2. ^ a b Svitek, Amy (2012-03-19). "Electric Satellites For Commercial Satcom". Aviation Week. Retrieved 2012-03-20.[permanent dead link]
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq Krebs, Gunter Dirk (2015-08-19). "Hughes / Boeing: HS-702 / BSS-702, HS-GEM / BSS-GEM (Geomobile)". Gunter's Space Page. Retrieved 2015-03-10.
  4. ^ "Boeing 702HP Fleet". Archived from the original on 2015-03-04. Retrieved 2015-03-09.
  5. ^ a b "Thrusters". Moog Inc. Archived from the original on 2016-08-10. Retrieved 2016-08-09.
  6. ^ "GEO-Mobile Satellite System". Archived from the original on October 4, 2012. Retrieved 2015-05-18.
  7. ^ "Boeing 702MP Satellite". Archived from the original on 2015-03-03. Retrieved 2015-03-09.
  8. ^ "Boeing 702MP Fleet - Intelsat". Boeing. Archived from the original on 2013-02-08.
  9. ^ a b "Boeing to Build 4 More Intelsat Epic 702MP Satellites" (Press Release). Boeing. 2013-05-09. Retrieved 2015-03-09.
  10. ^ a b c "Boeing to Build Intelsat 35e EpicNG Satellite" (Press Release). Boeing. 2014-07-08. Retrieved 2015-03-09.
  11. ^ a b c "The Build Of NYBBSat-1 Is Now A Boeing Effort". SatNews. 2015-01-15. Retrieved 2015-10-30.
  12. ^ "Boeing Satellite to Expand Mobile Communications Services in Asia" (Press Release). Boeing. 2015-10-27. Retrieved 2015-10-30.
  13. ^ a b c Krebs, Gunter Dirk (2015-10-27). "Silkwave 1 (NYBBSat 1)". Gunter's Space Page. Retrieved 2015-10-30.
  14. ^ a b c "Boeing 702 Fleet" (PDF). Boeing. 2005. Archived from the original (PDF) on 2016-03-03. Retrieved 2015-02-06.
  15. ^ a b Stephen Clark (2012-03-09). "Electric propulsion could launch new commercial trend". Spaceflightnow.com. Retrieved 2015-02-06.
  16. ^ Svitak, Amy (2014-03-10). "SpaceX Says Falcon 9 To Compete For EELV This Year". Aviation Week. Archived from the original on 2014-03-10. Retrieved 2014-03-11.
  17. ^ "Boeing Stacks Two Satellites to Launch as a Pair" (Press Release). Boeing. 2014-11-12. Retrieved 2014-11-17.
  18. ^ a b c "SES Orders SES-15 Satellite in North America" (Press Release). SES. 2015-02-16. Retrieved 2015-03-03.
  19. ^ a b c d e "Boeing reveals government's all-electric satellite purchase" (Article). Spaceflight Now. 2014-03-12. Retrieved 2015-05-18.
  20. ^ "ABS Teaming with Boeing, SpaceX for another Electric Satellite" (Article). SpaceNews. 2015-08-26. Retrieved 2015-06-01.
  21. ^ "Exclusive - Boeing eyes 'several hundred' layoffs in satellite division". Yahoo! Finance (Reuters). 2015-08-24. Retrieved 2015-08-26.
  22. ^ a b c d e f "Boeing Receives 3-Satellite Contract from Inmarsat" (Press Release). Boeing. 2010-08-06. Retrieved 2015-03-09.
  23. ^ a b "Inmarsat to purchase fourth Inmarsat-5 satellite from Boeing" (Press Release). Inmarsat. 2013-10-07. Retrieved 2015-03-09.
  24. ^ a b c d e f g h i "Intelsat". Boeing. Archived from the original on 2015-03-04. Retrieved 2015-03-09.
  25. ^ a b "Mexican Satellite System (Mexsat)". Archived from the original on 2015-03-09. Retrieved 2015-03-09.
  26. ^ a b "Boeing to manufacture SES' SES-9 satellite" (Press Release). SES. 2012-10-10. Retrieved 2015-03-03.
  27. ^ a b de Selding, Peter B. (2015-03-20). "SpaceX Aims To Debut New Version of Falcon 9 this Summer". Space News. Retrieved 23 March 2015.
  28. ^ a b c d e f g h i j k l "WGS 1, 2, 3, 4, 5, 6, 7, 8, 9, 10". Gunter's Space Page. Retrieved 2015-03-09.
  29. ^ a b "ViaSat Announces Next Generation Broadband Satellite" (Press Release). ViaSat. 2013-05-16. Retrieved 2015-03-09.
  30. ^ a b c d Krebs, Gunter Dirk. "XM 1, 2 (XM Rock, Roll)". Gunter's Space Page. Retrieved 2015-03-10.
  31. ^ a b c d Krebs, Gunter Dirk. "XM 3, 4 (XM Rhythm, Blues)". Gunter's Space Page. Retrieved 2015-03-10.
  32. ^ Krebs, Gunther. "Intelsat 29e (IS 29e)". Gunter's Space Page. Retrieved 2024-10-21.
  33. ^ @s4s_sda (19 October 2024). "S4S has confirmed the breakup of Intelsat 33E (#41748, 2016-053B) ~0430 UTC. Currently tracking around 20 associated pieces - analysis ongoing" (Tweet). Retrieved 20 October 2024 – via Twitter.
  34. ^ "GiSat". Gunter's Space Page. 2016-09-12. Retrieved 2016-09-13.
edit
Retrieved from "https://en.wikipedia.org/w/index.php?title=Boeing_702&oldid=1252402673"