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January 15, 2008. Sea-based Cosmodrome, the Pacific Ocean RSC
Energia after S.P. Korolev, MCC-M, city of Korolev

At 14 hours 49 minutes Moscow Time (11 hours 49 minutes Greenwich mean time) the next launch of Integrated Launch Vehicle (ILV) Zenit 3SL carrying Thuraya D3 spacecraft (SC) as a payload was performed from the sea-based Launch Platform Odyssey.
The launch objective is to deliver SC of 5.17 t by mass to geotransfer target orbit.
Upper Stage (US) DM-SL developed by RSC Energia after S.P. Korolev was responsible for SC direct delivery to this orbit from a low-altitude, intermediate near-Earth orbit where the SC/US had been delivered by Launch Vehicle (LV) Zenit-2S.
The Mission Program, which prescribed two-step firing of US Main Engine in an automated mode has been completely implemented.
The first firing of the Main Engine took place within 8 minutes 29 seconds of flight following the launch (within 9 seconds after the US/SC separation from LV Stage 2). Duration of its operation during the first firing was about 4 min. The second firing occurred within 1 hour 13 minutes after the launch; the engine operated about 6 minutes.
The Upper Stage provided SC delivery to the scheduled orbit with a high accuracy.
US DM-SL/SC Mission Analysis was performed by specialists from RSC Energia after S.P. Korolev as part of the Lead Operational Control Team working at the Mission Control Center (city of Korolev, Moscow Region) and maintaining permanent communication with the Control Center accommodated on the Sea Launch Complex Sea Launch Commander ship.

For reference:
1. It was the first launch under the Sea Launch Program performed in 2008 and the 25th launch according to General List of the performed launches under this Program.
2. D, DM type Upper Stages developed and manufactured by RSC Energia after S.P. Korolev are designed to deliver spacecraft from low-altitude, near-Earth orbits to high-energy orbits (including Geosynchronous orbit), as weel as to flight paths leading to the Moon and Solar system planets. They are operational along with Proton-K and Zenit-2S rockets.
3. Launches from the sea-based Cosmodrome are performed under the launch services program to be worked out by Sea Launch Company. This Company stockholders are the following: the Boeing Company (USA); RSC Energia after S.P. Korolev (Russia); Aker ASA Company (Norway) and aerospace enterprises of the Ukraine involving the Yuzhmash Production Association and the Yuzhnoye State Design Office after M.K. Yangel.
4. RSC Energia is the leading enterprise responsible for the Rocket Segment of the Sea Launch Complex, its outfitting and integrating into the Sea Launch Rocket and Space Complex, which provides in cooperation with a lot of space industry enterprises manufacture and operational use of Upper Stages DM-SL as the 3rd Stage of ILV Zenit-3SL.
5. Thuraya D3 Spacecraft is the third element of the satellite system designed to provide modern telecommunication services for customers in the countries of the Middle East, North and Central Africa, Europe, Central and South Asia, Indian peninsula. SC subsatellite point at geosynchronous orbit has inclination of 6.2 degrees 98.5 E longitude.

 

 

 

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