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Previous Proton mission: Anik G1

Track

profile

A standard launch profile flown by Proton-M/Briz-M rocket with commercial payloads.

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Eutelsat-3D (W3D) mission

2013 May 14

Russia's workhorse rocket successfully delivered a commercial communications satellite.

A Proton-M rocket with a Briz-M upper stage lifted off as scheduled on May 14, 2013, at 20:01:59 Moscow Time (12:02 EDT), from Pad 39 at Site 200 in Baikonur Cosmodrome.

The launch vehicle was carrying the Eutelsat-3D communications satellite for Eutelsat of Paris, France.

Launch profile

To deliver Euterlsat-3D, the Proton M will use a standard flight profile with five burns of the Briz-M upper stage.

The first three stages of the Proton will place the payload section comprised of the Briz M and the satellite into a sub-orbital trajectory. From this point in the mission, the upper stage is programmed to perform planned mission maneuvers to deliver 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 W3D satellite was scheduled to occur approximately nine hours, 13 minutes after liftoff. The spacecraft will use its own propulsion system to enter its final operational orbit.

The spacecraft

The 5,470-kilogram Eutelsat-3D or W3D satellite, previously also known as Eutelsat-7B, was built by Thales Alenia Space based on the company's Spacebus-4000 C3 platform. It was equipped with 56 transponders in Ku and Ka-band and designed for a 15-year life span in orbit.

Eutelsat-3D was designed to bring resources, reach and flexibility for high-growth professional video, data, telecom and broadband services.

Originally, the satellite was to be placed at 7 degrees East however, later, it was decided to deploy it first at 3 degrees East, an orbital position that sits at the crossroads of Europe, Africa and Asia. Through a configuration of Ku and Ka transponders connected to three footprints, Eutelsat’s new satellite will serve customers in Europe, North Africa, the Middle East and Central Asia. A fourth footprint in the Ku-band will serve customers in sub-Saharan Africa.

Eutelsat-3D will be located at 3 degrees East until the launch in the first half 2014 of Eutelsat-3B that will further extend coverage to South America. It will subsequently continue service at 7 degrees East.

The contract for the launch was announced on Nov. 9, 2011. By November 2012, the mission was expected in February 2013. However by that month, the launch was postponed to March 15, April 26 and May 14.

Eutelsat-3 launch timeline:

Moscow time
EDT
Elapsed time
Event
Status
May 14
20:01:59
12:01 p.m.
0
Liftoff
Completed
20:04:00
12:04 p.m.
120 seconds
Stage 1 separation
Completed
20:07:24
12:07 p.m.
324 seconds
Stage 3 ignition command
Completed
20:07:27
12:07 p.m.
327 seconds
Stage 2 separation
Completed
20:07:30
12:07 p.m.
330 seconds
Stage 3 main engine ignition command
Completed
20:07:45
12:07 p.m.
345 seconds
Payload fairing separation
Completed
20:11:31
12:11 p.m.
571 seconds
Stage 3 main engine cutoff
Completed
20:11:42
12:11 p.m.
582 seconds
Stage 3 separation
Completed
20:13:16 - 20:17:55***
12:13 - 12:17 p.m.
676-955 seconds
Briz-M engine firing 1***
Completed
21:09:33 - 21:27:14**
1:09 - 1:27 p.m.
4,053 - 5,114 seconds
Briz-M engine firing 2**
Completed
23:30:34 - 23:43:37
3:30 - 3:43 p.m.
12,514 - 13,297 seconds
Briz-M engine firing 3****
Completed
23:44:27
3:44 p.m.
13,347 seconds
External tank separation****
Completed
23:45:54 - 23:50:18
3:45 - 3:50 p.m.
13,434 - 13,698 seconds
Briz-M engine firing 4
Completed
04:53:50* - 05:01:38*
8:53 - 9:01 p.m.
31,910 - 32,378***** seconds
Briz-M engine firing 5***
Completed
05:15:00*
9:15 p.m.
31,910 seconds
Spacecraft separation
Completed

*May 15; **23 seconds premature from scheduled time; ***6 seconds premature from scheduled time; ****9 seconds premature from scheduled time; *****5 seconds premature from scheduled time;

 

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Next Proton mission: SES-6

Page author: Anatoly Zak; Last update: June 3, 2013

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PICTURE GALLERY

W3D

W3D

An artist renderings of Eutelsat-3D satellite. Credit: ILS


production

A fully assembled Eutelsat-3D satellite. Credit: ILS


Proton

A Proton rocket with W3D satellite is installed on the launch pad on May 11, 2013. Credit: Roskosmos


Briz

An artist rendering of the Briz-M maneuver. Credit: ILS


launch

Proton lifts off on May 14, 2013 with Eutelsat-3D satellite. Credit: GKNPTs Khrunichev