Astra 2G Satellite Specifications:
Satellite Name: Astra 2E
Position: 28° E (28.2° E)
Operator: SES Astra (part of SES Global)
Launch date: 27 December 2014
Launch site: Baikonur Cosmodrome.
Launch mass (kg):
Dry mass (kg):
Manufacturer: EADS Astrium
Model (bus): Eurostar-E3000
Operational date : 18 June 2015
Expected lifetime: 15 yrs.
The Astra 2G satellite is a commercial communications satellite built by Astrium, France. Astra 2G will be operated by by SES, Luxembourg.
Astra 2G has a launch mass of 6,020 Kilograms being based on Astrium’s flight-proven Eurostar E-3000 platform that is capable of hosting powerful communications payloads.
The satellite features two deployable solar arrays for power generation and associated batteries and avionics for power storage and distribution. A dedicated bi-propellant propulsion system will be used for apogee manoeuvres and stationkeeping manoeuvres in Geostationary Orbit. Astra 2G is three-axis stabilized featuring a state of the art navigation system.
The payload of the vehicle consists of 62 Ku-Band transponders and 4 Ka-Band transponders. The powerful Ku-payload enables Astra 2G to contribute to the SES broadcasting concept from the important orbital slots at 28.2 and 31.5 degrees East. Astra 2G will be stationed at 28.2 degrees covering Europe and Africa to deliver Direct-to-Home (DTH) services via spot-beams and pan-European beams.
Both, pay-TV and free-to-air TV broadcasters will be provided by Astra 2G.
Astra 2G, along with two other new Astra 2 satellites, Astra 2E, and Astra 2F, will be replacing Astra 2A, Astra 2B Astra 2C, Astra 2D and Eurobird 1 / Eutelsat 28A satellites at 28.2° E.
Astra 2G Satellite Launch Details
To deliver the Astra 2G Satellite to an optimized Geostationary Transfer Orbit, the Proton-M Rocket will perform a nominal ascent mission and deliver the Orbital Unit consisting of a Briz-M Upper Stage and the Payload to a sub-orbital trajectory. The large Proton-M Rocket will launch from Pad 39 at the Baikonur Cosmodrome, Kazakhstan. Separating after 9 Minutes and 42 Seconds, the Orbital Unit will start powered flight by igniting the Briz-M Main Engine to place itself in a Low-Earth Parking Orbit. In total, the Briz-M Upper Stage will make five Main Engine Burns separated by coast phases to increase its orbital altitude. After all burns are complete, the Satellite will be separated 9 Hours and 12 Minutes after Liftoff and start its own mission lasting for at least 15 years.
•Parking Orbit: 175 by 175 Kilometers – Inclination: 51.5°
•Intermediate Orbit: 270 by 5,000 Kilometers – Inclination: 50.3°
•Transfer Orbit: 435 by 35,757 Kilometers – Inclination: 49.1°
•Injection Orbit – GTO: 4,202 by 35,736 Kilometers – Inclination: 23.0°
The Proton M launch vehicle, utilizing a 5-burn Breeze M mission design, will lift off from Pad 39 at Baikonur Cosmodrome, Kazakhstan, with the Astra 2F Satellite on board. The first three stages of the Proton will use a standard ascent profile to place the orbital unit (Breeze M Upper Stage and the ASTRA 2G satellite) into a sub-orbital trajectory. From this point in the mission, the Breeze M will perform planned mission manoeuvres to advance the orbital unit first to a circular parking orbit, then to an intermediate orbit, followed by a transfer orbit, and finally to a geosynchronous transfer orbit. Separation of the Astra 2G Satellite is scheduled to occur approximately 9 hours, 12 minutes after liftoff.
Target Orbit at Separation:
Perigee: 4,202 km
Apogee: 35,736 km
Inclination: 23.0 degrees
Approximately 9 hours, 12 minutes after liftoff
Breeze M Upper Stage
The Breeze M is powered by one pump-fed gimballed main engine that develops thrust of 20 kN (4,500 lbf). It is composed of a central core and an auxiliary propellant tank which is jettisoned in flight following depletion. The Breeze M control system includes an on-board computer, a three-axis gyro stabilized platform, and a navigation system. The quantity of propellant carried is dependent on specific mission requirements and is varied to maximize mission performance.
The Proton booster is 4.1 m (13.5 ft) in diameter along its second and third stages, with a first stage diameter of 7.4 m (24.3 ft). Overall height of the three stages of the Proton booster is 42.3 m (138.8 ft).
Powered by one RD-0213 engine, this stage develops thrust of 583 kN (131,000 lbf), and a four-nozzle vernier engine that produces thrust of 31 kN (7,000 lbf). Guidance, navigation, and control of the Proton M during operation of the first three stages is carried out by a triple redundant closed-loop digital avionics system mounted in the Proton’s third stage.
Of conventional cylindrical design, this stage is powered by three RD-0210 engines plus one RD-0211 engine and develops a vacuum thrust of 2.4 MN (540,000 lbf).
The first stage consists of a central tank containing the oxidizer surrounded by six outboard fuel tanks. Each fuel tank also carries one of the six RD-276 engines that provide first stage power. Total first stage vacuum-rated level thrust is 11.0 MN (2,500,000 lbf).
Astra 2G Satellite Launch Date News
Launch date: Quarter 4 2014 – 27 December 2014
Astra 2G Satellite: Launch Update : Launch Success :
Astra 2G Satellite: Launch Update 21 December 2014: New Astra 2G satellite launch date and time announced – Launch is now December 27 at 16:37:49 EST; 21:37:49 GMT/UTC
Astra 2G Satellite: Launch Update 30th November 2014: New Astra 2G launch date announced:
Astra 2G Satellite: Launch Update 28th November 2014: More information on the delayed launch of Astra 2G:
Astra 2G Satellite: Launch Update 26th November 2014: LAUNCH DELAYED:
Astra 2G Satellite: Launch Update 24st November 2014: Astra 2G Satellite and Proton Rocket moves to the launch pad:
Astra 2G Satellite: Launch Update 24st November 2014: Astra 2G may not be used for UK TV straight after launch:
Astra 2G Satellite: Launch Update 21st November 2014: Spacecraft assembly completed:
Astra 2G Satellite: Launch Update 16th November 2014: Spacecraft fuelling completed:
Astra 2G Satellite: Launch Update 15th November 2014: Some Astra 2G facts and figures :http://www.satandpcguy.com/blog/2014/11/astra-2g-satellite-facts-figures/
Astra 2G Satellite: Launch Update 13th November 2014: SES has confirmed that all is looking good with its upcoming launch of Astra 2G on November 28th. International Launch Services (ILS), which is responsible for the Proton rocket launch in Kazakhstan, completed the first day of fuelling the craft on November 10th.
ILS also says that the Briz-M Upper Stage is undergoing its final test stages and will be joined to the main Proton rocket on November 14th.
Astra 2G Launch Update : Day one of fuelling of the Astra 2G spacecraft was completed on schedule today in Baikonur. In other launch operations, The Breeze M is back in Hall 101 undergoing pneumatic testing. Joint operations are scheduled to begin on November 14 to support the ILS Proton launch of SES’s Astra 2G at the end of November.
This will be the 400th Proton launch since its first flight in 1965 and the 7th Proton mission this year. The Astra 2G satellite was designed and
manufactured by Airbus Defence and Space for SES of Luxembourg. Based on the reliable Eurostar E3000 platform, the satellite will have a launch mass over 6 metric tons.
Astra 2G Satellite: Launch Update 9th November 2014 – Astra 2G launch
preparation on schedule. http://www.satandpcguy.com/blog/2014/11/astra-2g-satellite-launch-schedule/
Astra 2G Satellite: Launch Update 30th October 2014 – Astra 2G arrives at the Baikonur launch site http://www.satandpcguy.com/blog/2014/10/astra-2g-third-final-new-uk-tv-satellite-arrives-launch-site/
Astra 2G Satellite: Launch Update 28th October 2014 – aircraft carrying Astra 2G to the Baikonur launch site makes
emergency landing. This may delay the expected 27th / 28th November 2014 launch date.
Astra 2G Satellite News Update – 3rd October 2014 – Astra 2G launch date update. Astra 2G , the third and final new UK TV satellite from Astra, is scheduled to launch late November 2014.http://www.satandpcguy.com/blog/2014/10/astra-2g-launch-date-update-2/
Astra 2G News Update: 14 September 2014 : Astra 2G launch date – Astra 2Gs launch date is expected to be late 2014 – possibly somewhere between mid November to mid December. This would mean that it would be about February or March 2015 before Astra 2G is operational.
Astra 2G News Update: 15 June 2014 : Astra 2G launch delayed until July to September 2014.
Astra 2G News Update: 17 May 2014 : Astra 2G launch may be delayed by another Proton Rocket Failure :
Astra 2G News Update: Astra 2G launch could be delayed by trade embargos by USA on Russia – http://www.satandpcguy.com/blog/2014/04/astra-2g-launch-may-delayed-americans.
Astra 2G News Update: 10/03/14 : Astra 2G, the third new UK TV satellite, is expected to be moved to the launch site during Quarter 3 2014 – currently September 2014
Astra 2G News Update: 26/02/14 : Astra 2G, the third new UK TV satellite, is expected to be moved to the launch site during April, with an expected launch date of mid May 2014.
Astra 2G News Update: 29/08/13 : Rumoured launch date for Astra 2G: 31st March 2014
Astra 2G Satellite Launch Video