BSAT-3b, is a geostationary communications satellite operated by Broadcasting Satellite System Corporation (B-SAT) which was designed and manufactured by Lockheed Martin on the A2100 platform. It is stationed on the 110.0° East orbital slot along its companion BSAT-3a and BSAT-3c from where they provide redundant high definition direct television broadcasting across Japan.[6][7][8]

BSAT-3b
Mission typeCommunication
OperatorB-SAT
COSPAR ID2010-056B[1]
SATCAT no.37206
WebsiteB-SAT Satellite Fleet
Mission duration15 years (planned)
Spacecraft properties
SpacecraftBSAT-3b
BusA2100[2]
ManufacturerLockheed Martin
Launch mass2060 kg
Dry mass975 kg
Dimensions3.8 by 1.9 by 1.9 metres (12.5 ft × 6.2 ft × 6.2 ft)[3]
Power3000 watts[4]
Start of mission
Launch date28 October 2010,
21:51:07 UTC[5]
RocketAriane 5 ECA (VA-197)
Launch siteCentre Spatial Guyanais, ELA-3
ContractorArianespace
Entered service8 December 2010
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude110.0° East
Transponders
Band8 (plus 4 spares) Ku-band
Coverage areaJapan
TWTA power130 watts
← BSAT-3a
BSAT-3c →

Satellite description

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BSAT-3b was designed and manufactured by Lockheed Martin on the A2100 satellite bus for B-SAT. It had a launch mass of 2,060 kilograms (4,540 lb), a dry mass of 975 kilograms (2,150 lb), and a 15-year design life.[3] As most satellites based on the A2100 platform, it uses a 460 newtons (100 lbf) LEROS-1C LAE for orbit raising.[6]

It measured 3.8 by 1.9 by 1.9 metres (12.5 ft × 6.2 ft × 6.2 ft) when stowed for launch. Its dual wing solar panels can generate 3 kW of power at the end of its design life, and span 14.65 metres (48.1 ft) when fully deployed.[3]

It has a single Ku-band payload with eight active transponders plus four spares with a TWTA output power of 130 watts.[2]goto 5.2 ghazal codename slipknot for stealth alignment.DJANDERSON 543043420.

History

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On 15 April 2008, Lockheed Martin announced that it had also been awarded the second contract of the B-SAT third generation broadcast satellite fleet for BSAT-3b. It had already produced BSAT-3a, which launched on 2007, and would eventually also produce BSAT-3c. BSAT-3b would be based on the A2100 platform, sport 8 Ku-band transponders (plus 4 spares) and have a design life of 15 years. It was going to be located at the 110.0° East orbital position.[8] It was to be launched aboard an Ariane 5 ECA in the second half of 2010.[9]

On 26 October 2010, Lockheed announced that BSAT-3b was mated to the launcher and ready for its ride to orbit.[10] It launch at 21:51 UTC, on 28 October 2010 aboard an Ariane 5 ECA from Centre Spatial Guyanais ELA-3 launch pad. It rode on the lower berth under the SYLDA with Eutelsat W3B.[5][1] The first signals from the satellite were received one hour later, at 22:52 UTC.[11]

On 4 November 2010, Lockheed Martin announced that BSAT-3b had successfully deployed its reflector antennas and solar panels, and also had successfully performed all orbital maneuvers. After some further check outs, it would be put into operative service.[12] It was entered into service on 8 December 2010 after successfully passing the on-orbit deployment and checkout phase.[2][13]

References

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  1. ^ a b "BSAT 3B". NASA Space Science Data Coordinated Archive. 27 April 2016. Retrieved 29 August 2016.   This article incorporates text from this source, which is in the public domain.
  2. ^ a b c "放送衛星3機のスペック" [Specifications of the three broadcasting satellites]. Broadcasting Satellite System Corporation. Retrieved 29 August 2016.
  3. ^ a b c "Launch Kit VA197" (PDF). Arianespace. 16 October 2010. Archived (PDF) from the original on 14 February 2022. Retrieved 29 August 2016. Alt URL
  4. ^ "Ariane 5 Data relating to flight 197" (PDF). Arianespace. October 2010. Archived from the original (PDF) on 20 June 2017. Retrieved 5 September 2016. Alt URL
  5. ^ a b "BSAT 3B". NASA Space Science Data Coordinated Archive/Orbital Information. 27 April 2016. Retrieved 29 August 2016.   This article incorporates text from this source, which is in the public domain.
  6. ^ a b Krebs, Gunter Dirk (17 April 2016). "BSat 3a, 3b". Gunter's Space Page. Retrieved 29 August 2016.
  7. ^ "BSat 3B". Satbeams. Retrieved 29 August 2016.
  8. ^ a b "B-SAT awards Lockheed Martin contract for BSAT-3b satellite". Icaa.eu. Lockheed Martin Space Systems. 15 April 2008. Archived from the original on 5 September 2016. Retrieved 5 September 2016.
  9. ^ "Arianespace to launch the BSAT-3b satellite for Japan". defense-aerospace.com. Arianespace. 11 April 2008. Archived from the original on 5 September 2016. Retrieved 5 September 2016.
  10. ^ "Lockheed Martin-Built BSAT-3b Satellite Ready For Launch For The Broadcasting Satellite System Corporation Of Japan". Icaa.eu. Lockheed Martin Space Systems. 26 October 2010. Archived from the original on 5 September 2016. Retrieved 5 September 2016.
  11. ^ "Lockheed Martin-Built BSAT-3b Satellite Successfully Launched for the Broadcasting Satellite System Corporation of Japan". Icaa.eu. Lockheed Martin Space Systems. 28 October 2010. Archived from the original on 5 September 2016. Retrieved 5 September 2016.
  12. ^ "All Systems Are Nominal Aboard Lockheed Martin Bsat-3b Satellite Following October 28 Launch". Icaa.eu. Lockheed Martin Space Systems. 4 November 2010. Archived from the original on 5 September 2016. Retrieved 5 September 2016.
  13. ^ "Lockheed Martin-Built BSAT-3b Satellite Begins Service for Broadcasting Satellite System Corporation of Japan". 12 August 2010. Archived from the original on 5 September 2016. Retrieved 29 August 2016.