boost and finally Chandrayaan-1 was launched on 22 October 2008 at 00:52 UTC from Satish Dhawan Space Centre using the ISRO's tall, four-stage PSLV C11 launch vehicle. Chandrayaan-1 was sent to the Moon in a series of orbit-increasing manoeuvres around the Earth over a period of 21 days as opposed to launching the craft on a direct trajectory to the Moon. At launch the spacecraft was inserted into geostationary transfer orbit (GTO) with an apogee of and a perigee of . The apogee was increased with a series of five orbit burns conducted over a period of 13 days after launch. For the duration of the mission, ISRO's telemetry, tracking and command network (ISTRAC) at Peenya in Bangalore, tracked and controlled Chandrayaan-1. Scientists from India, Europe, and the U.S. conducted a high-level review of Chandrayaan-1 on 29 January 2009 after the spacecraft completed its first 100 days in space. Earth orbit burns First orbit burn The first orbit-raising manoeuvre of Chandrayaan-1 spacecraft was performed at 03:30 UTC on 23 October 2008 when the spacecraft's 440 Newton liquid engine was fired for about 18 minutes by commanding the spacecraft from Spacecraft Control Centre (SCC) at ISRO Telemetry, Tracking and Command Network (ISTRAC) at Peenya, Bangalore. With this Chandrayaan-1's apogee was raised to , and its perigee to . In this orbit, Chandrayaan-1 spacecraft took about 11 hours to go around the Earth once. Second orbit burn The second orbit-raising manoeuvre of Chandrayaan-1 spacecraft was carried out on 25 October 2008 at 00:18 UTC when the spacecraft's engine was fired for about 16 minutes, raising its apogee to , and its perigee to , thus completing 20 percent of its journey. In this orbit, Chandrayaan-1 spacecraft took about twenty-five and a half hours to go round the Earth once. This was the first time an Indian spacecraft went beyond the high geostationary orbit and reached an altitude more than twice that height. Third orbit burn The third orbit raising manoeuvre was initiated on 26 October 2008 at 01:38 UTC when the spacecraft's engine was fired for about nine and a half minutes. With this its apogee was raised to , and the perigee to . In this orbit, Chandrayaan-1 took about 73 hours to go around the Earth once. Fourth orbit burn The fourth orbit-raising manoeuvre took place on 29 October 2008 at 02:08 UTC when the spacecraft's engine was fired for