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Astra 5B

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Astra 5B/3C
Names Astra 5B (2014-2023)
Astra 3C (2023-)
Mission type Communications
Operator SES S.A.
COSPAR ID 2014-011B Edit this at Wikidata
SATCAT no. 39617
Website https://www.ses.com/
Mission duration 15 years (planned)
10 years, 2 months, 1 day (elapsed)
Spacecraft properties
Spacecraft type Eurostar
Bus Eurostar-3000
Manufacturer Astrium
(now Airbus Defence and Space )
Launch mass 5,724 kg (12,619 lb)
Start of mission
Launch date 22 March 2014, 22:04 UTC
Rocket Ariane 5 ECA (VA216)
Launch site Centre Spatial Guyanais , ELA-3
Contractor Arianespace
Entered service 2 June 2014
Orbital parameters
Reference system Geocentric orbit
Regime Geostationary orbit
Longitude 31.5° East (2014-2023)
23.5° East (2023-)
Transponders
Band 43 transponders :
40 Ku-band
3 Ka-band
Coverage area Europe
←  Astra 2E
Astra 2G  →
 

Astra 5B (now called Astra 3C ) is one of the Astra communications satellites owned and operated by SES . It was launched as SES' 56th satellite in March 2014, to the newest of the Astra orbital positions for direct-to-home (DTH) satellite television , at 31.5° East [1] for DTH, DTT and cable use in Eastern Europe,. [2]

The satellite replaced the Astra 1G satellite at 31.5° East, which was itself filling in at that position after the loss of the Astra 5A satellite (originally called Sirius 2 ) in 2009, [3] Astra 2C was first used at 31.5° East to replace Astra 5A, [4] with Astra 1G positioned there in 2010. [5]

Astra 5B was the third satellite to be launched of four ordered together by SES from Astrium (now Airbus Defence and Space ) in 2009. [6] The similar Astra 2E and Astra 2F were launched to Astra 28.2°E before Astra 5B in 2013 and 2012, respectively, and the fourth, Astra 2G was launched later, in 2014. [7]

Market [ edit ]

The Astra 5B satellite provided two Ku-band broadcast beams, each of horizontal and vertical polarisation , across two footprints , called the High Power beam and the Wide beam.

Within these reception areas, Astra 5B provided capacity for direct-to-home (DTH) broadcasting, direct-to-cable (DTC), and contribution feeds to digital terrestrial television networks. [2]

The satellite will also carry a hosted L-band payload for the European Geostationary Navigation Overlay Service (EGNOS) as EGNOS GEO-2 .

History [ edit ]

Astra 5B was ordered by SES in 2009 and built by Astrium (now Airbus Defence and Space ) on the Eurostar-3000 satellite bus . [6] The launch was originally scheduled for launch in the second quarter of 2013, [8] but that launch was cancelled because the other satellite ( Optus 10 ) which was due to accompany Astra 5B on the Ariane 5 launch was pulled from the manifest pending a possible sale of Optus . [9]

The launch was then planned for 6 December 2013 with Hispasat 's Amazonas 4A satellite as the co-passenger, [10] but it was announced in November 2013 that the launch had been postponed until January 2014 by delays to the availability of the Amazonas craft. [11] Finally, Ariane 5 VA216 was launched on 22 March 2014. [12]

Astra 5B began commercial operation at the Astra 31.5°E position on 2 June 2014, [13] and by the end of June 2014 had 18 active transponders carrying channels for eastern Europe. [14]

In July 2023 it was reported that all broadcasts had ceased and the satellite had moved to 23.5° East alongside Astra 3B . [15] [16] There, channels broadcasting on Astra 3B began to be transferred to Astra 5B (indicating a problem with Astra 3B, which still had some two years of its design life remaining) and Astra 5B was renamed Astra 3C. [17] [18]

See also [ edit ]

References [ edit ]

  1. ^ "SES: ASTRA 5B SATELLITE LAUNCH SUCCESS ON ARIANE 5" (Press release). SES ASTRA. 23 March 2014 . Retrieved 27 March 2014 .
  2. ^ a b "Astra 5B Factsheet" (PDF) . SES. Archived from the original (PDF) on 1 November 2013 . Retrieved 1 November 2013 .
  3. ^ "SES ASTRA Announces End Of ASTRA 5A Spacecraft Mission" (Press release). SES ASTRA. 16 January 2009 . Retrieved 31 October 2013 .
  4. ^ "SES To Move ASTRA 2C Satellite To 31.5 Degrees East To Support Development Of New Orbital Position" (Press release). SES Astra. 10 March 2009 . Retrieved 31 October 2013 .
  5. ^ "ASTRA 3B SATELLITE SUCCESSFULLY LAUNCHED" (Press release). SES Astra. 22 May 2010 . Retrieved 31 October 2013 .
  6. ^ a b SES Selects Astrium To Build Four Direct Broadcast Satellites SpaceNews 27 November 2009 Accessed 2 October 2019
  7. ^ "ASTRA 2G SATELLITE ROARS INTO ORBIT" (Press release). SES. 28 November 2014 . Retrieved 1 January 2015 .
  8. ^ Satlaunch.Net 2013 Launch Schedule Archived 30 November 2012 at the Wayback Machine Retrieved December 24, 2011
  9. ^ SES's Astra 5B Launch Delayed Again as Ariane 5 Co-passenger Hispasat Calls Timeout To Tweak Satellite SpaceNews 13 November 2013 Accessed 28 November 2013
  10. ^ "Arianespace launches VA216 and VS06 scheduled respectively for December 6 and 20" (Press release). Arianespace. 29 October 2013. Archived from the original on 2 November 2013 . Retrieved 28 November 2013 .
  11. ^ "SES: ASTRA 5B LAUNCH DELAY DUE TO UNAVAILABILITY OF CO-PASSENGER SATELLITE" (Press release). SES ASTRA. 13 November 2013 . Retrieved 29 November 2013 .
  12. ^ "Launch program activity" . ArianeSpace. Archived from the original on 9 February 2014 . Retrieved 24 March 2014 .
  13. ^ "SES: ASTRA 5B SATELLITE GOES LIVE AT 31.5 DEGREES EAST" (Press release). SES. 2 June 2014 . Retrieved 27 June 2014 .
  14. ^ Astra 5B at 31.5°E www.lungsat.com Accessed June 29, 2014
  15. ^ Astra 5B (31.5°E) does not broadcast channels Sat Universe. July 2023. Accessed 26 September 2023
  16. ^ ASTRA 5B N2YO.com. Accessed 26 September 2023
  17. ^ SES Fleet Map SES. Accessed 25 December 2023
  18. ^ Astra 5B as Astra 3C broadcasts the first programmes for Skylink (Czech) Parabola.cz 1 December 2023. Accessed 25 December 2023

External links [ edit ]

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