Proton for SES 6 launch will use Supersynchronous Transfer Orbit

From: Kevin Fetter (kfetter@yahoo.com)
Date: Thu May 23 2013 - 14:49:14 UTC

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    The mission booklet for SES 6
    
    http://www.ilslaunch.com/sites/default/files/pdf/SES-6%20MO.pdf
    
    Is showing the sat will be placed into a Supersynchronous Transfer Orbit.
    
    The rocket's orbit will have a apogee over 60,000 km. 
    
    Why they use this orbit
    
    Use of a Supersynchronous Transfer Orbit (SSTO) can increase performance into GSO. A SSTO takes
    advantage of the increased efficiency with which the inclination can be changed at the SSTO apogee, the
    altitude of which is much greater than that of GSO.
    
    http://www.ilslaunch.com/sites/default/files/pdf/PMPG%20Section%20F.pdf
    
    Kevin
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