|
(詳細はlaunch, aerobraking, and transition phases as well as subsequent significant operational mission events; by date and brief description. == Launch and cruise timeline == * April 30, 2005: the ''MRO'' spacecraft was delivered to the launch site. * August 9, 2005: the August 10 launch opportunity was postponed because of reliability concerns over the Atlas V's gyroscopes. * August 10, 2005: concerns over the gyroscopes were resolved. Launch was scheduled for 7:50 am EST, August 11. * August 11, 2005: concerns over weather cause a rescheduling of the launch to 9:00 am EST. Conflicting sensor readings during fueling of the Centaur stage's liquid hydrogen fuel tank could not be corrected in time, causing the launch to be scrubbed and rescheduled for 7:43 am EST August 12.〔(【引用サイトリンク】title=NASA Delays Mars Orbiter Launch (August 11, 2005) ) 〕 * August 12, 2005: at 7:43 am EST, ''MRO'' was launched. There were no significant anomalies reported during launch and deployment into interplanetary transfer orbit. * August 15, 2005: MARCI was tested and calibrated. * August 25, 2005: at 15:19:32 UTC, ''MRO'' was 100 million kilometers from Mars. * August 27, 2005: the first trajectory correction maneuver was executed. The burn used the same main thrusters that are needed for the orbital insertion maneuver and lasted 15 seconds. A velocity change of 7.8 m/s was achieved. * September 8, 2005: ''MRO'' completed calibration and testing of the HiRISE and CTX cameras by taking pictures of the Moon from 10 million kilometers away. * November 18, 2005: ''MRO'' underwent its second scheduled course correction by firing its 6 medium thrusters for 20 seconds and changing its velocity by 75 cm/s. * January 29, 2006: at 06:59:24 UTC, ''MRO'' was 10 million kilometers from Mars. * February 3, 2006: ''MRO'' began the Approach Phase, in preparation for orbital insertion. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Timeline of Mars Reconnaissance Orbiter」の詳細全文を読む スポンサード リンク
|