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Raumfahrt - Start von ESA´s VV03 Vega mit Kazakhstan’s DZZ-HR-Satelliten

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22.04.2014

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Vega is readied for its third Arianespace mission, carrying a pioneering Earth observation spacecraft


Vega Flight VV03

Arianespace’s Vega mission with DZZ-HR, Kazakhstan’s first Earth observation satellite, is entering the final preparation phase for a nighttime liftoff next week from the Spaceport in French Guiana.

This will be the light-lift Vega’s third flight, once again demonstrating its capability to accommodate a full range of payloads as the smallest member in Arianespace’s launcher family – operating along with the medium-lift Soyuz and heavyweight Ariane 5 at the Spaceport.
The mission is set for April 28, at an exact liftoff time of 10:35:15 p.m. from Vega’s SLV launch complex.  It will deploy DZZ-HR into a Sun-synchronous orbit, inclined 98.5 deg. at the conclusion of a flight lasting 55 minutes, 29 seconds.  
DZZ-HR has an estimated liftoff mass of 830 kg. and was built by Airbus Defence and Space for the Republic of Kazakhstan to perform civilian applications ranging from the monitoring of natural and agricultural resources to the provision of mapping data and support for rescue operations during natural disasters.
With a nominal design service lifetime of 7.25 years, the high-resolution spacecraft will be renamed KazEOSat 2 once reaching its assigned orbit.
Mission highlights
During Vega’s initial ascent from the Spaceport, DZZ-HR will be protected by a 7.90-meter-long payload fairing (shown in the cut-away drawing at right), which is to be jettisoned 3 min., 54 sec. after liftoff.  The flight will be powered by Vega’s solid propellant P80 first stage, Zefiro 23 second stage and Zefiro 9 third stage.  The AVUM (Attitude & Vernier Upper Module) upper stage has a bipropellant propulsion system for orbital injection, with its monopropellant propulsion system providing roll and attitude control.
Vega was developed to launch small satellites into low Earth orbit (LEO) and Sun-synchronous orbit (SSO), serving as a capable vehicle to meet existing and emerging market requirements.
Development of Vega was handled in the framework of a European Space Agency (ESA) program financed by Italy, France, Germany, Spain, Belgium, the Netherlands, Switzerland and Sweden.  The launcher design authority and prime contractor is Italy’s ELV – a joint venture company of Avio and the Italian space agency – while Arianespace is responsible for handling the launch operations.
The upcoming Vega mission is designated Flight VV03 in Arianespace’s numbering system.  Vega’s first launch (Flight VV01) was a qualification mission performed in February 2012, carrying the LARES laser relativity satellite, a small ALMASat-1 technology microsatellite demonstrator, and seven CubeSats.   This was followed by Flight VV02 in May 2013, which orbited the Proba-V, VNREDSat-1 and ESTCube-1 spacecraft.
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Liftoff time for VV03

UTC

Kourou, French Guiana

Paris, France

Washington, D.C.

Astana, Kazakhstan

01:35:15
on April 29, 2014

10:35:15 p.m.
on April 28, 2014

3:35:15 a.m.
on April 29, 2014

9:35:15 p.m.
on April 28, 2014

7:35:15 a.m.
on April 29, 2014

 

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Quelle: arianespace

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Update: 24.04.2014

Quelle: arianespace

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Update: 27.04.2014

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It's a “go” for Arianespace's Vega launch with Kazakhstan's first Earth observation satellite

Arianespace’s next Vega mission from French Guiana has been given the “all clear” for liftoff on April 28 with its DZZ-HR payload, following completion of the launch readiness review performed today at the Spaceport.

This assessment – held before each flight of an Arianespace launcher family member – confirmed that the light-lift vehicle and its DZZ-HR satellite passenger are flight-ready, along with the Spaceport’s infrastructure and the network of downrange tracking stations.

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The decal for DZZ-HR – which includes the Republic of Kazakhstan flag and logo for this Earth observation satellite’s prime contractor, Airbus Defence and Space – was added to the Vega launcher’s payload fairing during earlier mission preparation activity at the Spaceport.

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The upcoming mission is designated Flight VV03 in Arianespace’s numbering system, and it will be performed from the Spaceport’s SLV launch site – where the Vega was assembled and now stands in a flight-ready configuration, protected by a mobile gantry that will be withdrawn prior to liftoff.

With today’s launch readiness review completed, all is set for the Vega’s scheduled liftoff precisely at 10:35:15 p.m. local time in French Guiana on Monday, April 28. Its subsequent 55-minute, 29-second flight will conclude with deployment of DZZ-HR – which was built by Airbus Defence and Space for the Republic of Kazakhstan – into a Sun-synchronous orbit, inclined 98.5 deg.

DZZ-HR will perform civilian applications ranging from the monitoring of natural and agricultural resources to the provision of mapping data and support for rescue operations during natural disasters.  It has a liftoff mass of approximately 830 kg., and will be re-designated KazEOSat-1 after reaching the assigned orbit.

Vega is one of three launchers operated by Arianespace at the Spaceport, along with the medium-lift Soyuz and heavyweight Ariane 5.  It was developed in a European Space Agency program financed by Italy, France, Germany, Spain, Belgium, the Netherlands, Switzerland and Sweden – conceived to orbit small- to medium-sized satellites, including institutional and scientific spacecraft.

Design authority and prime contractor for Vega is Italy’s ELV – a joint venture company of Avio and the Italian space agency – while Arianespace has responsibility for handling the launch operations.

Flight VV03 will be the third launch for Vega, following its qualification in February 2012 (carrying the LARES laser relativity satellite, a small ALMASat-1 technology microsatellite demonstrator, and seven CubeSats), and a mission in May 2013 (which orbited the Proba-V, VNREDSat-1 and ESTCube-1 spacecraft).

 

Liftoff time for VV03

UTC

Kourou, French Guiana

Paris, France

Washington, D.C.

Astana, Kazakhstan

01:35:15
on April 29, 2014

10:35:15 p.m.
on April 28, 2014

3:35:15 a.m.
on April 29, 2014

9:35:15 p.m.
on April 28, 2014

7:35:15 a.m.
on April 29, 2014

 

Quelle: arianespace

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Update: 28.04.2014

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Update: 29.04.2014

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Arianespace Flight VV03 – KasEOSat-1: Mission postponed

 

Kourou, April 28, 2014

 

Arianespace observed a non-compliant behavior of the payload’s ventilation umbilical during countdown after the gantry’s withdrawal.

 

According to its quality policy, Arianespace has decided to perform an inspection of its facilities.

 

This inspection will take a few hours and a decision regarding the launcher’s flightworthiness will be made tomorrow.

Quelle: arianespace

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Update: 29.04.2014 / 21.40 MESZ 

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Arianespace Flight Vega VV03 – KasEOSat-1
Launch set for Tuesday, April 29 2014
Kourou, April 29, 2014. Following completion of the payload’s ventilation umbilical inspection, Vega launcher’s flightworthiness is confirmed. Arianespace has decided to resume countdown operations for launch VV03 – KasEOSat-1 (DZZ-HR).
Lift-off of the Vega launcher is now set for Tuesday, April 29 2014, at exactly:
10:35:15 pm local time on Tuesday, April 29, 2014
09:35:15 pm in Washington, D.C.
01:35:15 am UTC on Wednesday, April 30, 2014
03:35:15 am in Paris
07:35:15 am in Astana (Kazakhstan).


 

 

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