RIS Science team news
Information on the ADEOS Malfunction (NASDA(JAXA) Press Rerease)
RIS Science Team Meeting Report
(Mar. 15, 1997)
First Spectrum Measured with the RIS
(Jan. 13, 1997)
RIS Checkout Report
(Dec. 10, 1996)
We have received infrared return from the RIS at 10 microns. Both TEA CO2 lasers were tuned to 10P(24) line of 12CO2. The intensity of the return was strong and is probably close to the simulation, though the fluctuatuion of the return was large compared to the visible signals. The fluctuation was probably due to the tracking error. We will study the correlation between the signals further and will optimize the divergence of the infrared beam. (Nov. 15, 1996)
We succeeded in tracking of the RIS with an accuracy of approximately 30 microradians. Photograph is the reflection from the RIS at 532-nm taken with the ICCD camera in Coude system that is located just next to the infrared detector. The field of view of the ICCD is approximately 200 microradians.(Oct. 18, 1996)
The initial checkout of RIS was conducted on September 22 and 27 using SH Nd:YAG laser at 532 nm. Strong echo was obtained from the RIS, and it is confirmed that the RIS is working normally. Figure below shows an ICCD camera image of the reflection from the RIS.
The experiments using TEA lasers will be started in October. (Oct. 1,1996)
ADEOS was launched from Tanegashima Space Center on August 17, 1996. The National Space Development Agency of Japan (NASDA) has completed the initial orbit control of ADEOS. (Sept. 1, 1996).
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