2026/02/12

<Announcement of GOSAT Data Archive Service Outage>
We would like to notify you of upcoming outage of GDAS for the system maintenance.
During the following period, all the services provided through GDAS will not be available.
The period of Service Outage:
 00:00 Tue. Feb. 17, 2026 - 08:00 Fri. Feb. 20, 2026 (UT)
Special Note:
*You will not be able to access GDAS during this period.
 Thank you for your cooperation and understanding.

2026/02/05

<Announcement of the Observation request for RA researchers (for Apr., 2026)>
We will start accepting the observation request (from Apr. 6, 2026 to May 3, 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 : Apr. 6 (Mon), 2026 through May 3 (Sun), 2026 (UT)
  *Period to accept observation requests : 15:00 Jan. 28 (Wed), 2026 through 14:59 Feb. 18 (Wed), 2026 (UT).

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.

2025/12/19

<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)