| Date | Operational? | Description/reason | Last updated by |
|---|---|---|---|
| May 29, 2025, 2:10 a.m. | Yes | But, not operational on 31 May and 1, 7, 8, 14, 15, 21, 22, 28 and 29 June 2025 due to holidays | morino |
| May 8, 2025, 5:55 a.m. | Yes | But, not operational on 10, 11, 17, 18, 24, 25 and 31 May 2025 due to holidays | morino |
| May 8, 2025, 5:55 a.m. | Yes | But, not operational on 10, 11, 17, 18, 24, 25 and 31 May 2025 due to holidays | morino |
| April 4, 2025, 5:12 a.m. | Yes | But, not operational on 5, 6, 12, 13, 19, 20, 26, 27, 29 April and 3-6 May in 2025 by holidays. | morino |
| March 7, 2025, 10:44 a.m. | Yes | But, not operational on 8, 9, 15, 16, 20, 22, 23, 29 and 30 Mar 2025 by holidays. | morino |
| Feb. 6, 2025, 10:19 p.m. | Yes | But, not operational on 8, 9, 11, 15, 16, and 22-24 Feb 2025 by holidays. | morino |
| Dec. 27, 2024, 7:06 a.m. | Yes | But, not operational on 28-31 Dec 2024 and 1 - 5, 10 - 13, 18, 19, 25, 26 Jan 2025 by holidays and 20 Jan 2025 by absence of operator. | morino |
| Dec. 10, 2024, 5:14 a.m. | Yes | But, not operational on 14, 15, 21, 22, 28-31 Dec 2024 and 1 - 5 Jan 2025 by holidays | morino |
| Oct. 29, 2024, 9:02 a.m. | Yes | But, not operational on 2-4, 9, 10, 16, 17, 23, 24 and 30 Nov 2024 by holidays | morino |
| Oct. 2, 2024, 10:38 a.m. | Yes | But, not operational on 5, 6, 12-14, 19, 20, 26, and 27 Oct 2024 by holidays | morino |
| Aug. 30, 2024, 2:13 a.m. | Yes | But, not operational on 31 Aug and 1, 7, 8, 14-16, 21-23, 28, 29 Sep in 2024 due to holidays | morino |
| Aug. 1, 2024, 10:05 a.m. | Yes | But, not operational on 3, 4, 10-12, 17, 18, 24, 25, and 31 Aug 2024 due to holidays | morino |
| July 4, 2024, 4:39 a.m. | Yes | But, not operational on 6, 7, 13, 14, 15, 20, 21, 27, and 28July 2024 due to holidays | morino |
| May 12, 2024, 1:11 a.m. | Yes | But, not operational on 18, 19, 25, 26 May, 1, 2, 8, 9, 15, 16, 22, 23, 29, 30 June 2024 due to holidays | morino |
| April 8, 2024, 11:18 p.m. | Yes | when FTS works well without errors. But, not operational on 13, 14, 20, 21, 27-29 April and 3-6 May 2024 due to holidays | morino |
| Feb. 28, 2024, 1:46 a.m. | Yes | when FTS works well without errors. But, not operational on 2, 3, 9, 10, 16, 17, 20, 23, 24, 30, and 31 March 2024 | morino |
| Jan. 28, 2024, 10:50 p.m. | Yes | when FTS works well without errors. But, not operational on 3, 4, 10-12, 17, 18, 23-25 Feb 2024 | morino |
| Jan. 4, 2024, 12:43 a.m. | Yes | when FTS works well without errors. But, not operational on 6-8, 13, 14, 20, 21, 27, 28 Jan 2024 | morino |
| Nov. 30, 2023, 6:59 p.m. | Yes | When FTS works well without errors. But, not operational on 2, 3, 9, 10, 16, 17, 23, 24, 29-31 Dec 2023 and 1-3 Jan 2024 | morino |
| Nov. 5, 2023, 7:11 a.m. | Yes | When FTS works well without errors. But, not operational on 11, 12, 18, 19, 23, 25, and 26 Nov 2023 by holidays | morino |
| Oct. 9, 2023, 9:52 p.m. | Yes | when FTS works well without errors. But, not operational on 14, 15, 21, 22, 28 and 29 Oct 2023 by holidays | morino |
| Sept. 2, 2023, 11:05 p.m. | Yes | when FTS works well without errors. But, not operational on 2, 3, 9, 10, 11, 16, 17, 18, 24, 25 and 30 Sep 2023 by holidays. | morino |
| Aug. 29, 2023, 1:58 p.m. | Yes | But, not operational on 2, 3, 9, 10, 11, 16, 17, 18, 24, 25 and 30 Sep 2023 by holidays | morino |
| July 19, 2023, 6:11 a.m. | No | scanner error due to the laser failure | morino |
| June 28, 2023, 1:22 a.m. | Yes | when FTS works well without errors. But, not operational on 1, 2, 8, 9, 15-17, 22, 23, 29, 30 July in 2023 by holidays | morino |
| April 27, 2023, 5:53 a.m. | Yes | when FTS works well without errors.But, not operational on 29, 30, April and, 3-7, 13, 14, 20, 21, 27, 28 May in 2023 by holidays | morino |
| April 2, 2023, 4:17 p.m. | Yes | when FTS works well without errors. But, not operational on 1, 2, 8, 9, 15, 16, 22, 23, 29, 30, 2023 by holidays | morino |
| Jan. 31, 2023, 4 a.m. | No | Due to FTS hardware problem, but when FTS works well, we operate FTS on weekday. | morino |
| Dec. 28, 2022, 5:41 p.m. | No | due to FTS hardware problem | morino |
| Dec. 6, 2022, 1:02 a.m. | Yes | But, not operational on 10, 11, 17, 18, 25, and 29-31 Dec 2022 and 1-3, 7-9, 14, 15, 21, 22, 28, and 29 Jan 2023 by holidays | morino |
| Nov. 1, 2022, 1:14 a.m. | Yes | But, not operational on 3, 5, 6, 12, 13, 19, 20, 23, 26 and 27 Nov 2022 by holidays | morino |
| Sept. 27, 2022, 10:38 p.m. | Yes | But, not operational on 1, 2, 8, 9, 10, 15, 16, 22, 23, 29 and 30 Oct 2022 by holidays | morino |
| June 30, 2022, 1:18 a.m. | Yes | But, not operational on 2, 3, 9, 10, 16, 17, 18, 23, 24, 30 and 31, July 2022 by holidays | morino |
| June 8, 2022, 10:17 p.m. | Yes | But, not operational on 11, 12, 18, 19, 25, and 26, June 2022 by holidays | morino |
| May 5, 2022, 3:48 a.m. | Yes | But, not operational on 3-5, 7, and 8, 14, 15, 21, 22, 28, an 29 May 2022 by holidays | morino |
| April 7, 2022, 9:41 p.m. | Yes | But, not operational on 9, 10 16, 17, 23, 24, 29 and 30 April and 1, 3-5, 7, and 8, 14, 15, 21, 22, 28, an 29 May 2022 by holidays | morino |
| March 16, 2022, 12:23 a.m. | Yes | But, not operational on 19, 20, 21, 26 and 27 March 2022 by holidays | morino |
| March 10, 2022, 12:55 a.m. | No | solar tracker trouble by an error for adjusting time using GPS | morino |
| March 1, 2022, 11:15 p.m. | Yes | But, not operational on 5, 6, 12, 13, 19, 20, 21, 26 and 27 March 2022 by holidays | morino |
| Feb. 2, 2022, 9:18 p.m. | Yes | But, not operational on 5, 6, 11, 12, 13, 19, 20, 23, 26 and 27 Feb 2022 by holidays | morino |
| Jan. 30, 2022, 1:01 p.m. | Yes | But, not operational on 5, 6, 12, 13, 19, 20, 26 and 27 Feb 2022 by holidays | morino |
| Jan. 1, 2022, 5:29 a.m. | Yes | But, not operational on 1-3, 8, 9, 10, 15, 16, 22, 23, 29 and 30 Jan 2022 by holidays | morino |
| Dec. 9, 2021, 8:36 p.m. | Yes | But, not operational on 11, 12, 18, 19, 25, 26, and 29-31 Dec 2021 and 1-3 Jan 2022 by holidays | morino |
| Oct. 29, 2021, 12:53 a.m. | Yes | But, not operational on 3, 6, 7, 13, 14, 20, 21, 23, 27 and 28 Nov 2021 by holidays | morino |
| Sept. 30, 2021, 2:47 a.m. | Yes | But, not operational on 2, 3, 9, 10, 16, 17, 23, 24, and 31 Oct 2021 by holidays | morino |
| Sept. 2, 2021, 10:09 p.m. | Yes | But, not operational on 4, 5, 11, 12, 18, 19, 20, 23, 25, and 26 Sep 2021 by holidays | morino |
| July 29, 2021, 2:23 a.m. | Yes | But, not operational on 31 July and 1, 7, 8, 9, 14, 15, 21, 22, 28, and 29 Aug 2021 by holidays. | morino |
| June 28, 2021, 12:46 a.m. | Yes | But, not operational on 3, 4, 10, 11, 17, 18, 22, 23, 24, 25, and 31 July 2021 by holidays | morino |
| June 28, 2021, 12:38 a.m. | Yes | But, not operational on holidays 3, 4, 10, 11, 17, 18, 22, 23, 24, 25, and 31 July 2021. | morino |
| May 30, 2021, 2:20 a.m. | Yes | But, not operational on holidays 5, 6, 12, 13, 19, 20, 26, and 27 June 2021. | morino |
| April 30, 2021, 1:05 a.m. | Yes | The solar tracker works properly after repair. But, not operational on holidays 1-5, 8, 9, 15, 16, 22, 23, 29 and 30 May 2021. | morino |
| April 19, 2021, 1:42 a.m. | No | due to a trouble for the solar tracker software (it is not Bruker's one) | morino |
| March 31, 2021, 4:45 a.m. | Yes | But, not operational on holidays 3, 4, 10, 11, 17, 18, 24, 25, and 29 Apr 2021. | morino |
| March 1, 2021, 11:26 p.m. | Yes | But, not operational on holidays 6, 7, 11, 13, 14, 20, 21, 27, 28 Mar 2021 and 4, 5 Mar 2021 due to absence of an operator | morino |
| Feb. 4, 2021, 9:20 p.m. | Yes | But, not operational on holidays 6, 7, 11, 13, 14, 20, 21, 23, 27, 28 Feb 2021 | morino |
| Jan. 1, 2021, 1:31 a.m. | Yes | But, not operational on holidays 1, 2, 3, 9, 10, 11, 16, 17, 23, 24, 30, 31 Jan 2021 | morino |
| Dec. 1, 2020, 1:51 a.m. | Yes | But, not operational on holidays 5, 6, 12, 13, 19, 20, 26, 27, 29-31 Dec and 1-3 Jan 2021 | morino |
| Nov. 13, 2020, 12:35 a.m. | Yes | But, not operational on holidays 14, 15, 21, 22, 23, 28 and 29 Nov 2020 and 16 Nov due to absence of an operator | morino |
| Sept. 24, 2020, midnight | Yes | But, not operational by holidays on 26 and 27 Sep, 3, 4, 10, 11, 17, 18, 24, 25 and 31 Oct | morino |
| Sept. 8, 2020, midnight | Yes | Scanner works again after He-Ne laser replacement. But, not operational on holidays 12, 13, 19 - 22, 26 and 27 September. | morino |
| June 18, 2020, midnight | No | Scanner failure due to instability of a He-Ne laser power | morino |
| May 28, 2020, midnight | Yes | But, not operational on holidays 30, 31 May, 6, 7, 13, 14, 20, 21, 27 and 28 June. | morino |
| April 30, 2020, midnight | Yes | But, not operational on holidays 2-6, 9, 10, 16, 17, 23, 24, 30 and 31 May. | morino |
| March 26, 2020, midnight | Yes | But, not operational on holidays 28, 29 March, 4, 5, 11, 12, 18, 19, 25, 26, and 29 April. | morino |
| March 12, 2020, midnight | Yes | but will not operate on 14, 15, 20, 21, 22, 28, and 29 Mar due to holidays | morino |
| Jan. 27, 2020, midnight | Yes | but will not operate on 1, 2, 8, 9, 11, 15, 16, 22, 23, 24 and 29 Feb due to holidays | morino |
| Jan. 11, 2020, midnight | Yes | but will not operate on 12, 13, 18, 19, 25, 26 Jan due to holidays | morino |
| Dec. 27, 2019, midnight | Yes | but will not operate on 28 Dec - 5 Jan, due to New Year Holidays | morino |
| Oct. 21, 2019, midnight | Yes | morino | |
| April 18, 2019, midnight | Yes | but will not operate on 27 Apr - 6 May, due to very long national holidays | morino |
| April 16, 2018, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| March 29, 2018, midnight | No | due to employer s contract | morino |
| Jan. 25, 2018, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| Jan. 21, 2018, midnight | No | due to maintenance of FTS | morino |
| Sept. 6, 2016, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| Sept. 1, 2016, midnight | No | due to the solar tacker trouble | morino |
| Jan. 3, 2016, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| Dec. 21, 2015, midnight | No | due to the rules for regulating the duties of the staff at NIES (Dec. 27-Jan.3) | morino |
| Sept. 10, 2015, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| Aug. 23, 2015, midnight | No | test measurement after repairing the dome and the tracker | morino |
| Aug. 18, 2015, midnight | No | Due to error for the solar tracker after repairing the dome | morino |
| July 14, 2015, midnight | No | Due to erroneous motion for the dome | morino |
| July 2, 2015, midnight | Yes | On GOSAT overpass & OCO-2 target mode days TCCON all the day, and on other days NDACC in the morning then TCCON to evening but on mainly weekdays | morino |
| April 23, 2015, midnight | Yes | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| April 20, 2015, midnight | No | An adjustment for the dome was made, but we need test | morino |
| April 20, 2015, midnight | No | An adjustment for the dome was made, but we need text | morino |
| April 16, 2015, midnight | No | due to erroneous motion for the dome | morino |
| March 10, 2015, midnight | Yes | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Feb. 12, 2015, midnight | No | due to erroneous motions for the solar tacker and the dome | morino |
| Aug. 28, 2014, midnight | Yes | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Aug. 21, 2014, midnight | Yes | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Aug. 18, 2014, midnight | Yes | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Aug. 7, 2014, midnight | No | On GOSAT overpass and OCO-2 target mode days TCCON measurements all day, and on other days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Aug. 7, 2014, midnight | No | On GOSAT&OCO-2 overpass days TCCON measurements all day, and on not overpass days NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Aug. 7, 2014, midnight | No | On GOSAT&OCO-2 overpass days TCCON measurements all day, and on not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| July 7, 2014, midnight | Yes | On GOSAT overpass day TCCON measurements all day, and on not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| July 2, 2014, midnight | No | After changing mirrors, checking optics and spectra. | morino |
| April 9, 2014, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Jan. 26, 2014, midnight | No | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-evening. | morino |
| Dec. 29, 2013, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| Nov. 25, 2013, midnight | No | Due to replacement of old electronics etc. for the solar tracker (until 20? Dec. 2013) | morino |
| March 14, 2013, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| Feb. 24, 2013, midnight | No | A failure of a solar tracker dome (due to imperfect test for the solar tracker system) | morino |
| Feb. 22, 2013, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| Jan. 16, 2013, midnight | No | A failure of a solar tracker dome | morino |
| Dec. 10, 2012, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| Nov. 18, 2012, midnight | No | By failure of a He-Ne laser | morino |
| Oct. 12, 2011, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| May 6, 2011, midnight | No | Trying test measurements with the HBr cell, the HCl cell, the TCCON mode, and the NDACC mode. | morino |
| March 14, 2011, midnight | No | 125 HR and 120 HR have troubles on a scanner(probably) by a very huge earthquake by IM | morino |
| April 8, 2010, midnight | Yes | In GOSAT overpass day TCCON measurements all day, and in not GOSAT overpass day NDACC in the morning and TCCON from 11 am to early-eveninig. | morino |
| March 25, 2010, midnight | No | Due to replace to a new FTS (IFS 125 HR) by IM | morino |
| March 25, 2010, midnight | No | Due to replace to New FTS (IFS 125 HR) by IM | morino |
| March 25, 2010, midnight | No | No. Due to replace to New FTS (IFS 125 HR) by IM | morino |
| May 1, 2009, midnight | Yes | Solar absorption measurements in TCCON mode began 25 Dec 2008. Measurements with NDACC mode are performed once a month. 22-Jan-2009 by IM. | morino |
| May 1, 2009, midnight | Yes | morino | |
| Jan. 22, 2009, midnight | Yes | Solar absorption measurements in TCCON mode began 25 Dec 2008. Measurements with NDACC mode are performed once a month. 22-Jan-2009 by IM. | dwunch |