India's GSLV returns to flight

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docm

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Congrats to the ISRO <img src="/images/icons/smile.gif" /><br /><br />Link....<br /><br /><blockquote><font class="small">In reply to:</font><hr /><p><b>India's large satellite launcher returns to flight</b><br /><br />It was a day of redemption for India's space program Sunday, when the nation's most powerful rocket returned to the skies for the first time since a booster engine failure doomed a launch last year.<br /> <br />The Geosynchronous Satellite Launch Vehicle, making its fifth flight since debuting in 2001, blasted away from the Satish Dhawan Space Center on Sriharikota Island. Liftoff was at 1250 GMT (8:50 a.m. EDT), the exact time of sunset on India's east coast.<br /><br />The 161-foot-tall rocket flew east over the Bay of Bengal on track to deposit the INSAT 4CR communications satellite into orbit. <br /> /><br /> /><p><hr /></p></p></blockquote> <div class="Discussion_UserSignature"> </div>
 
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arkady

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Well done.<br /><br />Yesterday's launch<br />First flight GSLV <br /><br />Oh, and also found this. Lots of good footage, plus funny audio. <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> "<font color="#0000ff"><em>The choice is the Universe, or nothing</em> ... </font>" - H.G Wells </div>
 
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edkyle98

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The launch appears to have placed INSAT-4CR in a low orbit at 168 x 31,710 km x 15.8 deg rather than the planned 170x 35,975 km x 21.7 deg. That's a shortfall of 75-ish meters per second, which seems to me to be greater than can be explained away as merely "under performance". In other words, the GSLV launcher may have suffered some type of problem on the way up. <br /><br />ISRO says that INSAT will be able to make up the difference and reach an operational orbit, but I suspect that it will do so at the cost of a half-year or more of on-orbit lifetime. <br /><br />The recent Atlas V AV-009 mission, which fell only 40-ish meters per second short, has been classified as a launch vehicle failure or partial failure, so it seems correct to place GSLV-F04 in the same failure category. It certainly was not as great a success as claimed by ISRO.<br /><br /> - Ed Kyle
 
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destiny3

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mission has achieved the parameters as desired, this is the latest i have got<br /><br />"INSAT-4CR raised to a perigree of 15994 km.<br /><br />India's communication satellite successfully launched on Sunday, was today raised to a perigree of 15,994 kms as planned in the third of its orbit raising manoeuvres.<br /><br />The operation was conducted at 4.35 am with the firing of the 440 Newton Liquid Apogee Motor (LAM) on board for 3140 seconds by commanding the satellite from the Master Control Facility at Hassan in Karnataka, a release said here today.<br /><br />With this LAM operation, INSAT-4CR perigree has been raised to 15,994 kms, the release said.<br /><br />The apogee is at 35,385 km and the inclination of the orbit with respect to the equatorial plane has been reduced from 11.1 deg to 3.24 deg now, it said adding the orbital parameters achieved are as planned.<br /><br />The present orbital period is 15 hours 52 minutes.<br /><br />INSAT-4CR was successfully launched by GSLV-F04 on September two from Satish Dhawan Space Centre, SHAR, Sriharikota.<br /><br />Subsequently, the Master Control Facility had acquired the signals from the satellite and conducted initial phase operations on INSAT-4CR.<br /><br />All systems on board the satellite are functioning normally. The next orbit raising manoeuvre is planned around 12.30 pm tomorrow, it said. "<br />
 
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holmec

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Very Good! <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <p> </p><p><font color="#0000ff"><em>"SCE to AUX" - John Aaron, curiosity pays off</em></font></p> </div>
 
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