Rstar separated from Kaguya (Selene)

Kaguya in orbit around the Moon. Credits: Akihiro Ikeshita/JAXA

[JAXA Press Release - 09.10.2007]
The Japan Aerospace Exploration Agency (JAXA) performed the separation operation of one of the onboard baby satellites, the Relay Satellite (Rstar,) of the "KAGUYA" (SELENE,) and the Rstar was released at 9:36 a.m. on October 9 (Japan Standard Time, JST). The KAGUYA is a lunar explorer launched by the H-IIA Launch Vehicle No. 13 (H-IIA F13) on September 14, 2007 (JST) from the Tanegashima Space Center. Both the KAGUYA and Rstar are confirmed to be in good health.

In addition, Moon images taken by one of the KAGUYA's onboard cameras, the high-gain antenna monitor camera, are also available in Attachment 2.

Pictures are available at

You can also check this information on the following Special Site:

The Relay Satellite (Rstar):
An onboard baby satellite of the KAGUYA that is the first satellite that can observe the magnetic field of the backside of the Moon. The Rstar will observe the Moon's gravity field more accurately by using a method called "radio interference" with the other baby satellite, the VLBI (Very Long Baseline Interferometer) satellite.