The Japan Aerospace Exploration Agency (JAXA) has announced that the launch time of the Infrared Astronomical Satellite (ASTRO-F) aboard the M-V Launch Vehicle No. 8 (M-V-8) has been determined as follows based on the collision avoidance analysis with the manned space system(s)* which is performed one day prior to the launch day. (The date and time are Japan Standard Time.)
* A collision avoidance analysis is an analysis carried out prior to a rocket launch to avoid a collision with manned space systems, such as the International Space Station, which are in orbit. In principal, a launch vehicle and any of its separated objects should not collide with manned space systems from the launch until its completion of the first round around the earth.
** The launch time has been determined based on the best time to inject the satellite into its orbit as the whole original launch time range (6:00 to 7:00 a.m.) was found to be free from any possibility of collision with manned space systems after the collision avoidance analysis.
Japan's Astro-F infrared astronomical observatory, previously known as the InfraRed Imaging Surveyor (IRIS) is set to launch from the Uchinoura Space Centre atop a M-5 rocket at 21:00-22:00 GMT (4:00-5:00 p.m. EST) on February 20, during a one-hour launch window. Equipped with a 68.5-centimeter telescope, the observatory will make a complete sky survey at a higher sensitivity and across a wider wavelength range than IRAS.
Astro-F is Japan's second infrared astronomy mission following the Infrared Astronomical Satellite launched in 1983. The satellite will be launched into a 745-kilometer, Sun-synchronous orbit.
The launch schedule of the 21st scientific mission satellite "ASTRO-F" by the M-V Launch Vehicle No. 8 to the Space Activities Commission (SAC) is scheduled for February 21 (Tue), 2006, at 6:00 - 7:00 a.m. (JST), from the Uchinoura Space Centre, Japan.
The launch window extends from February 22 to 28, 2006.