| Date | Operational? | Description/reason | Last updated by |
|---|---|---|---|
| June 4, 2025, 12:30 a.m. | Yes | But, not operational on 31 May and 7, 8, 14, 15, 21, 22, 28 and 29 June 2025 due to holidays and 6 June 2025 due to absence of operator. | morino |
| May 29, 2025, 2:11 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 and 9 June 2025 due to absence of operator. | morino |
| May 29, 2025, 2:09 a.m. | Yes | But, not operational on 1, 7, 8, 14, 15, 21, 22, 28 and 29 June 2025 due to holidays and 9 June 2025 due to absence of operator. | morino |
| May 8, 2025, 5:57 a.m. | Yes | But, not operational on 10 and 11 May 2025 due to holidays and 12-30 May 2025 due to absence of operator. | morino |
| April 4, 2025, 7:33 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 and 25 April due to absence of ab operator. | 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 14, 2025, 8:27 a.m. | Yes | He-Ne laser replaced. But, not operational on 15, 16, 20, 22, 23, 29 and 30 Mar by holidays and 21, 28 Mar 2025 by absence of an operator. | morino |
| March 7, 2025, 10:43 a.m. | Yes | He-Ne laser replaced. But, not operational on 8, 9, 15, 16, 20, 22, 23, 29 and 30 Mar by holidays and 14 Mar 2025 by absence of an operator. | morino |
| Jan. 22, 2025, 6:53 a.m. | No | He-Ne laser failure | morino |
| Dec. 27, 2024, 7:07 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 10 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, 9:03 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, 10:37 a.m. | Yes | But, not operational on 5, 6, 12-14, 19, 20, 26, and 27 Oct by holidays, and on 11 Oct 2024 by absence of an operator. | morino |
| Sept. 12, 2024, 12:53 a.m. | Yes | But, not operational on 1-10 Sep by rooftop waterproofing work, on 14-16, 21-23, 28, 29 Sep by holidays, and on 20 Sep 2024 by absence of an operator. | morino |
| Aug. 30, 2024, 2:15 a.m. | Yes | But, not operational on 1-10 Sep in 2024 due to rooftop waterproofing work and on 31 Aug and 14-16, 21-23, 28, 29 Sep in 2024 due to holidays | morino |
| Aug. 1, 2024, 10:07 a.m. | Yes | But, not operational on 3, 4, 10-12, 17, 18, 24, 25, and 31 Aug 2024 due to holidays and 9 Aug due to absence of an operator | 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 |
| June 7, 2024, 7:23 a.m. | Yes | But, not operational on 8, 9, 15, 16, 22, 23, 29, 30 June 2024 due to holidays and 14 June by absence of an operator | 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, 11:20 p.m. | Yes | But, not operational on 13, 14, 20, 21, 27-29 April and 3-6 May 2024 due to holidays and 12 April due to absence of an operator | morino |
| Feb. 28, 2024, 1:45 a.m. | Yes | But, not operational on 2, 3, 9, 10, 16, 17, 20, 23, 24, 30, and 31 March 2024 | morino |
| Jan. 28, 2024, 10:49 p.m. | Yes | But, not operational on 3, 4, 10-12, 17, 18, 23-25 Feb 2024 | morino |
| Jan. 4, 2024, 12:42 a.m. | Yes | But, not operational on 6-8, 13, 14, 20, 21, 27, 28 Jan 2024 | morino |
| Nov. 30, 2023, 6:59 p.m. | Yes | 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 | But, not operational on 11, 12, 18, 19, 23, 25, and 26 Nov 2023 by holidays | morino |
| Oct. 9, 2023, 9:51 p.m. | Yes | But, not operational on 14, 15, 21, 22, 28 and 29 Oct 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 31, 2023, 7:12 a.m. | Yes | But, not operational on 5, 6, 11, 12, 13, 19, 20, 26, and 27 Aug in 2023 by holidays | morino |
| June 28, 2023, 1:21 a.m. | Yes | But, not operational on 1, 2, 8, 9, 15-17, 22, 23, 29, 30 July in 2023 by holidays | morino |
| April 27, 2023, 5:52 a.m. | Yes | But, not operational on 29, 30, April and, 3-7, 13, 14, 20, 21, 27, 28 May in 2023 by holidays | morino |
| March 17, 2023, 7:11 p.m. | Yes | But, not operational on 18, 19, 21, 25, 26 March, and 1, 2, 8, 9, 15, 16, 22, 23, 29, 30, 2023 by holidays | morino |
| Jan. 31, 2023, 3:59 a.m. | Yes | But, not operational on 4, 5, 11, 12, 18, 19, 23, 25, and 26 Feb 2023 by holidays | morino |
| Dec. 28, 2022, 5:40 p.m. | Yes | But, not operational on 29-31 Dec 2022 and 1-3, 7-9, 14, 15, 21, 22, 28, and 29 Jan 2023 by holidays | morino |
| Dec. 23, 2022, 12:59 a.m. | No | due to heavy snow | 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, 4:21 a.m. | Yes | But, not operational on 3, 5, 6, 12, 13, 19, 20, 23, 26 and 27 Nov 2022 by holidays and 7 and 10 by absent of operator | morino |
| Nov. 1, 2022, 1:13 a.m. | No | Failure for FTS PC | morino |
| Nov. 1, 2022, 1:12 a.m. | No | failure for FTS PC | morino |
| Sept. 30, 2022, 5:30 a.m. | Yes | Replacement with a new tracker. But, not operational on 1, 2, 8, 9, 10, 15, 16, 22, 23, 29, 30 Oct by holidays and 7 Oct by an operator absence | morino |
| Sept. 27, 2022, 10:38 p.m. | Yes | Replacement with a new solar tracker. But, not operational on 1, 2, 8, 9, 10, 15, 16, 22, 23, 29 and 30 Oct 2022 by holidays | morino |
| July 6, 2022, 2:27 a.m. | No | failure of a solar tracker due to influence of a lightning strike nearby | morino |
| July 6, 2022, 2:25 a.m. | No | failure of a solar tracker due to influence on a lightning strike nearby | 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, 3:49 a.m. | Yes | But, not operational on 3-5, 7, and 8, 14, 15, 21, 22, 28, an 29 May 2022 by holidays | morino |
| Nov. 29, 2021, 8:03 p.m. | No | A mirror for incident solar light and a KBr window of FTS were damaged by an icicle! | morino |
| Nov. 29, 2021, 9:41 a.m. | No | A mirror for incident solar light was damaged by an icicle! | 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, 2:48 a.m. | Yes | But, not operational on 2, 3, 9, 10, 16, 17, 23, 24, and 31 Oct 2021 by holidays | morino |
| Sept. 14, 2021, 5:33 a.m. | Yes | But, not operational on 18, 19, 20, 23, 25, and 26 Sep 2021 by holidays and 30 Sep 2021 by absence of an operator | 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, 2:24 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 and 19 Aug by absence of an operator. | morino |
| July 29, 2021, 2:22 a.m. | Yes | But, not operational on 31 July and 1, 7, 8, 9, 14, 15, 21, 22, 28, 29 Aug 2021 by holidays and 19 Aug by absence of an operator. | morino |
| June 28, 2021, 12:45 a.m. | Yes | But, not operational on 3, 4, 10, 11, 17, 18, 22, 23, 24, 25, and 31 July 2021 by holidays and 8 and 16 July by absence of an operator. | 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 |
| May 30, 2021, 2:19 a.m. | Yes | But, not operational on holidays 5, 6, 12, 13, 19, 20, 26, and 27 May 2021. | morino |
| May 7, 2021, 5:51 a.m. | Yes | But, not operational on holidays 8, 9, 15, 16, 22, 23, 29 and 30 May 2021 and absence of an operator on 27 May 2021. | morino |
| April 30, 2021, 1:02 a.m. | Yes | But, not operational on holidays 1-5, 8, 9, 15, 16, 22, 23, 29 and 30 May 2021. | morino |
| April 9, 2021, 9:25 a.m. | Yes | But, not operational on holidays 3, 4, 10, 11, 17, 18, 24, 25, and 29 Apr 2021 and on 22 Apr 2021 due to absence of an operator. | 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 2, 2021, 12:10 p.m. | Yes | But, not operational on holidays 6, 7, 11, 13, 14, 20, 21, 27, 28 Mar 2021 and 18, 26 Mar 2021 due to absence of an operator | 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 18 Mar 2021 due to absence of an operator | morino |
| Feb. 4, 2021, 9:19 p.m. | Yes | But, not operational on holidays 6, 7, 11, 13, 14, 20, 21, 23, 27, 28 Feb 2021 and 18 Feb 2021 due to absence of an operator | morino |
| Jan. 15, 2021, 2:59 a.m. | Yes | But, not operational on holidays 16, 17, 23, 24, 30, 31 Jan 2021 and 21 Jan 2021 due to absence of an operator | morino |
| Jan. 1, 2021, 1:30 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, 12:34 a.m. | Yes | But, not operational on holidays 14, 15, 21, 22, 23, 28 and 29 Nov 2020 | morino |
| Sept. 24, 2020, midnight | Yes | But, not operational by no staff on 1 Oct and holidays on 26, 27 Sep, 3, 4, 10, 11, 17, 18, 24, 25 and 31 Oct. | morino |
| Sept. 24, 2020, midnight | Yes | But, not operational by absence of staff on 1 Oct and holidays on 26 and 27 Sep, 3, 4, 10, 11, 17, 18, 24, 25 and 31 Oct | morino |
| Aug. 1, 2020, midnight | Yes | But, not operational on holidays 1, 2, 8-10, 15, 16, 22, 23, 29 and 30 August. | morino |
| July 2, 2020, midnight | Yes | But, not operational on holidays 4, 5, 11, 12, 18, 19 and 23-26 July. | 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 10, 2020, midnight | Yes | but will not operate on 7, 8, 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, we will not operate on Dec 28-31 and Jan 1-5 due to holidays | morino |
| Dec. 7, 2019, midnight | Yes | but, we will not operate on Dec 7, 8, 14, 15, 21, 22, and 28-31 and Jan 1-5 due to holidays | morino |
| Nov. 8, 2019, midnight | Yes | but, we will not operate on Nov 9, 10, 16, 17, 23, 24, and 30 due to holidays | morino |
| Oct. 4, 2019, midnight | Yes | but, we will not operate on Oct 5, 6, 12, 13, 14, 19, 20, 22, 26, and 27 due to holidays | morino |
| Sept. 28, 2019, midnight | Yes | but, we will not operate on Sep 29, Oct 5, 6, 12, 13, 14, 19, 20, 22, 26, and 27 due to holidays | morino |
| July 28, 2019, midnight | Yes | but, we will not operate on Aug 3, 4, 10, 11, 12, 17, 18, 24, 25 and 31 due to holidays | morino |
| May 27, 2019, midnight | Yes | but, we will not operate on June 1, 2, 8, 9, 15, 16, 22, 23, 29 and 30 due to holidays | morino |
| April 18, 2019, midnight | No | but, will not be operated on 27 Apr - 6 May, due to holidays | morino |
| April 18, 2019, midnight | Yes | but, will not be operated on 27 Apr - 6 May, 11, 12, 18, 19, 25, 26 May due to holidays | morino |
| April 18, 2019, midnight | Yes | but, will not operate on 27 Apr - 6 May, 11, 12, 18, 19, 25, 26 May due to holidays | morino |
| Feb. 4, 2019, midnight | Yes | but, will not be operated on 9, 10, 11, 16, 17, 23, and 24, Feb. due to holidays | morino |
| Jan. 7, 2019, midnight | Yes | but, will not be operated on 12, 13, 14, 19, 20, 26, and 27, Jan. due to holidays | morino |
| Dec. 6, 2018, midnight | Yes | but, will not be operated on 8, 9, 15, 16, 22, 23, 24, 29, 30, and 31 Dec. due to holidays | morino |
| Oct. 18, 2018, midnight | Yes | but, will not be operated on 20, 21, 27, and 28 Oct. due to holidays | morino |
| Sept. 24, 2018, midnight | Yes | but, will not be operated on 29 and 30 Sep. due to holidays | morino |
| Sept. 12, 2018, midnight | Yes | but, will not be operated on 15,16, and 17 due to holidays | morino |
| Sept. 12, 2018, midnight | Yes | but, will not be operated on15,16, and 17 due to holidays | morino |
| Sept. 6, 2018, midnight | No | test after recovery of power source, now no error | morino |
| Sept. 6, 2018, midnight | No | test after recovery of power source ,now no error | morino |
| Sept. 5, 2018, midnight | No | due to power down by big earthquakes | morino |
| July 2, 2018, midnight | Yes | but, will not be operated on Jul. 7 & 8 due to holidays | morino |
| June 28, 2018, midnight | Yes | but, will not be operated on Jul. 1 due to holidays | morino |
| May 7, 2018, midnight | Yes | morino | |
| April 26, 2018, midnight | Yes | but, will not be operated on 28, 29, 30 Apr. and 3, 4, 5, 6 May due to holidays | morino |
| April 26, 2018, midnight | Yes | but, will not be operated on 28,29,30 Apr. 3, 4, 5, 6 May due to holidays | morino |
| April 1, 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 only weekdays | morino |
| March 15, 2018, midnight | No | will not be operated on holidays | morino |
| Jan. 29, 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 only weekdays | morino |
| Jan. 25, 2018, midnight | No | Due to maintenance of FTS | morino |
| June 11, 2017, 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 only weekdays | morino |
| June 8, 2017, midnight | No | Due to no operator on weekends | morino |
| May 21, 2017, 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 only weekdays | morino |
| May 18, 2017, midnight | No | Due to no operator on weekends | morino |
| April 9, 2017, 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 only weekdays | morino |
| April 6, 2017, midnight | No | due to no operator on weekends | morino |
| Jan. 4, 2017, 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 only weekdays | morino |
| Dec. 30, 2016, midnight | No | due to a New Year Holidays from Dec. 29 to Jan. 3 | 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 only weekdays | morino |
| July 2, 2015, midnight | Yes | On GOSAT overpass & OCO-2 target days TCCON all the day, and on not GOSAT & OCO-2 days NDACC from morning then TCCON to evening but on only weekdays | morino |
| June 8, 2015, 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 | 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 |
| Jan. 16, 2014, midnight | No | in training for atmosphere measurements (measured spectra can be analyzed with GGG) | morino |
| May 31, 2012, midnight | No | in preparation for atmosphere measurements | morino |
| May 30, 2012, midnight | No | Testing | dwunch |