2025/12/22
<Closing at Year Ends and New Year>
We are closing for the New Year holiday between 27 Dec. 2025 and 4 Jan. 2026 (JST). We will unable to respond to your inquiries and/or accept authorized user registrations from 6:00 (UT) on 26 Dec. 2025 until 00:00 (UT) on 5 Jan. 2026.
Even while we are closing, following functions are still available for you:
access to information, general user registrations and product downloads by the registered users.
We apologize for any inconvenience that might be causing you during this period.
2025/12/22
<Announcement of the Observation request for RA researchers (for Mar., 2026)>
We will start accepting the observation request (from Mar. 2, 2026 to Apr. 5, 2026) of GOSAT/FTS from the PIs.
For Submission method of Observation Requests, please see "Submission of Observation Requests" on "Documents & Information" page after logging into GDAS.
  *Period for the observation : Mar. 2 (Mon), 2026 through Apr. 5 (Sun), 2026 (UT)
  *Period to accept observation requests : 15:00 Dec. 24 (Wed), 2025 through 14:59 Jan. 14 (Wed), 2026 (UT).

2025/12/19
<Data delivery temporal suspension of the GOSAT TANSO-FTS>
Data delivery of the GOSAT TANSO-FTS will be temporally suspended from the observations on December 18, 2025 due to an unknown event of the TANSO-FTS.

TANSO-FTS data suspension period : 2025/12/18 06:02:14 - (UT)