KazSat 2

Spacecraft n°:

Kazakhstan spacecraft n°: 2

Launch data: Designation  37749 / 11035B Launch date  15 Jul 2011 - 23:16 UT Launch site  Baik, LC-200/39 Launch vehicle  Proton-M/Briz-M Mission  Commercial: Communication Geostationary orbit: Perigee / Apogee  35786 x 35788 km Eccentricity  2.37E-05 Inclination  0.03 deg Period  1436.13 min

Mission details:

• Kazsat-2 is a Ku-band communications satellite based on Khrunichev's Yakhta bus and is owned by Kazakhstan's National Center for Space Communications (RTsKS). Replaced KazSat-1.
• The Briz-M was placed in an initial -477 x 189 km x 48.0 deg trajectory at 2325 UTC; it reached 133 x 273 km x 48.0 deg at 2333 UTC, 240 x 5000 km x 46.8 deg at 0039 UTC on Jul 16, jettisoned the DTB tank at 0259 UTC in a 341 x 215235 km orbit, reached 401 x 35252 km x 45.6 deg at 0303 UTC, and coasted to apogee. A further burn completed at 0704 UTC left SES-3 in a 3655 x 35757 km x 24.7 deg orbit; it separated from the stack at 0717 UTC. The Briz-M coasted for almost an hour and then jettisoned the payload adapter that separated SES-3 from Kazsat at 0812 UTC. At 0822 the sixth Briz-M burn put Briz-M/Kazsat in a 35201 x 35767 km x 0.1 deg near-geosynchronous orbit, and at 0840 UTC Kazsat-2 was ejected from Briz-M. Finally, Briz-M made two depletion burns at 1046 and 1151 UTC.
• It appears from Khrunichev data that the final Kazsat-2 orbit was about 324 km lower in apogee than planned and 0.1 deg higher in inclination, but this is unlikely to pose a problem for the payload.
• The objects in orbit from the launch are therefore:

      Briz-M 99519  35000?x 36000?x  1.0? deg  
      Kazsat-2      35201 x 35767 x  0.1 deg   
      SES-3          3655 x 35757 x 24.7 deg     35A
      Adapter        3692 x 35728 x 24.7 deg     35B
      DTB tank        341 x 25235 x 45.7 deg     35C
      8S812KM stage  -477 x   189 x 48.0 deg (reentered in Pacific)