| Date | Operational? | Description/reason | Last updated by |
|---|---|---|---|
| Aug. 13, 2020, midnight | No | Solar tracker dome failed. Unclear how this can be fixed under the current Covid-19 restrictions. | dfeist |
| Aug. 5, 2020, midnight | Yes | Inetrnet connection restored. Station back on line. | dfeist |
| July 30, 2020, midnight | No | Internet connection to the container has been lost for several days. Station has been shut downuntil te connection can be restored. | dfeist |
| July 6, 2020, midnight | Yes | Solar tracker dome back on line but operatio limited to business hours (Mo-Fr 09:00-16:00 UTC) until further notice. | dfeist |
| July 2, 2020, midnight | No | Solar tracker dome failed on July 1. Problem has been fixed but further test are required before automatic operation can be resumed (probably July 6). | dfeist |
| June 23, 2020, midnight | Yes | Station still running and problems with data transmission finally solved! Transmission baclog is still ~2.5 months but should catch up by end of July. | dfeist |
| May 15, 2020, midnight | Yes | Station still running but problems with data download and resulting long backlog. So processing of new data will take a while. | dfeist |
| March 19, 2020, midnight | Yes | Station still running. Go ahead, OCO-2 and OCO-3! | dfeist |
| Feb. 8, 2020, midnight | Yes | Station is back online after more than a year! Hope it will last until we come back. | dfeist |
| Jan. 23, 2020, midnight | No | Arrived on Ascension on Jan 18. Hope to get things back online but no guarantees. Site was w/o maintenance for 3+ years. | dfeist |
| Oct. 15, 2019, midnight | No | Solar tracker has arrived in Germany for repairs. Next maintenance visit planned for Jan 18-Feb 09, 2020. | dfeist |
| Nov. 8, 2018, midnight | No | New problems with solar tracker. Reason unclear so far. | dfeist |
| Oct. 26, 2018, midnight | Yes | Solar tracker repaired. Spare parts took ~4 months to arrive! Ascension Island has resumed regular operations. | dfeist |
| March 16, 2018, midnight | No | Internet connection restored. Instrument ran unattended until 2018-01-26. Currently not operational due to solar tracker problem. | dfeist |
| Jan. 17, 2018, midnight | No | Communication lost on 2018-01-15. Status currently unknown. | dfeist |
| Jan. 8, 2018, midnight | Yes | Station up and running. A happy new year to all of you! | dfeist |
| Oct. 15, 2017, midnight | Yes | Station is still up and running and waitung for ATom-3! Lot of clouds though ... | dfeist |
| Aug. 4, 2017, midnight | Yes | Solar tracker working again! Ascension FTS has resumed automatic measurements! | dfeist |
| July 4, 2017, midnight | No | Dome and solar tracker problems fixed but noe enough time to resume regular operation before PIs vacation. Expect Aug 1. | dfeist |
| April 7, 2017, midnight | No | Spare part has arrived, trying to organize repair as soon as possible. | dfeist |
| March 23, 2017, midnight | No | Solar tracker dome still offline. Spare part is on its way. | dfeist |
| Feb. 17, 2017, midnight | No | Station offline due to problems with solar tracker dome. | dfeist |
| Feb. 10, 2017, midnight | Yes | 43 good measurements during last OCO-2 overpass on 2017-02-04. Overpass on 2017-02-13 would be ideal due to NASA ATom aircraft coming in on same day. | dfeist |
| Feb. 3, 2017, midnight | Yes | Very good conditions during last 3 days: 100-120 observations per day from sunrise to sunset! | dfeist |
| Jan. 30, 2017, midnight | Yes | Operation schedule back to 7 days per week sunrise to sunset . | dfeist |
| Jan. 20, 2017, midnight | Yes | Problems with PC/network connection fixed. Resuming reduced operation as before. | dfeist |
| Jan. 19, 2017, midnight | No | Lost network connection - status unknown. | dfeist |
| Jan. 2, 2017, midnight | Yes | Resuming operation between 09:00-16:00 UTC Mon-Fri | dfeist |
| Dec. 23, 2016, midnight | No | Operation suspended because no one will be on-site during holidays. Plan to resume 2017-01-02. | dfeist |
| Dec. 16, 2016, midnight | Yes | Waiting for spare part for solar tracker dome. Operating only 09:00-16:00 UTC Mo-Fr until it arrives. | dfeist |
| Dec. 9, 2016, midnight | Yes | Problems with ST dome not as severe. Operation during OCO-2 target mode overflights possible during weekdays. | dfeist |
| Nov. 24, 2016, midnight | No | Station offline due to problems with solar tracker dome. | dfeist |
| Oct. 28, 2016, midnight | Yes | Station operatational. Had an incredibly clear day on Oct 25 but also have to expect completely overcast during this time of year. | dfeist |
| Oct. 14, 2016, midnight | Yes | Station still runing fine. | dfeist |
| Sept. 15, 2016, midnight | Yes | Station still runing fine. | dfeist |
| Sept. 1, 2016, midnight | Yes | Station still runing fine. | dfeist |
| Aug. 22, 2016, midnight | Yes | Maintenance visit finished, station has resumed routine automatic observations. | dfeist |
| Aug. 14, 2016, midnight | Yes | Resumed routine automatic measurements today. Hoping for good weather for the arrival of the NASA DC-8 tomorrow! | dfeist |
| Aug. 13, 2016, midnight | Yes | Maintenance team on site, broken parts fixed. Some testing still in progress. Plan to resume automatic measurements on 2016-08-14. | dfeist |
| July 11, 2016, midnight | No | Station still offline since end of 2015 due to technical problems and funding issues. Maintenance trip is planned for August 2016. | dfeist |
| Dec. 18, 2015, midnight | No | Problem with the PLC (programmable logic controller) of our container,station has to be shut down because nobody is onsite for approx. the next 14days | niebling |
| Nov. 20, 2015, midnight | Yes | Station back to normal operation after massive A/C failure. | dfeist |
| Nov. 17, 2015, midnight | No | Internet connection has been down for 3 days. Set to "not operational" because status is unknown | dfeist |
| Oct. 29, 2015, midnight | Yes | Single days (OCO-2 target) can be transferred online. Replacement hardware for delayed offline data transfer is on the way. | dfeist |
| Sept. 3, 2015, midnight | Yes | Regular data transfer still delayed. Single days (OCO-2 target) can be transferred online. | dfeist |
| Aug. 25, 2015, midnight | Yes | Station operational but no data transfer due to problems with transfer media or reader | dfeist |
| July 2, 2015, midnight | Yes | Station returns to normal data delivery schedule after replacement data transfer media have arrived on the island. | dfeist |
| May 12, 2015, midnight | Yes | Station back on line after a series of power failures and severe communication disruption | dfeist |
| April 30, 2015, midnight | No | Station not operational after island-wide power failure | dfeist |
| April 21, 2015, midnight | Yes | Station opertional but data transfer delayed by several weeks due to broken tape drive | dfeist |
| Feb. 20, 2015, midnight | Yes | Maintenance work finished | dfeist |
| Feb. 6, 2015, midnight | No | Maintenance work in progress | dfeist |
| Jan. 15, 2015, midnight | Yes | Station is fully operational. Ready when you are, OCO-2! | dfeist |
| Jan. 5, 2015, midnight | Yes | Station is fully operational. Happy New Year! | dfeist |
| Dec. 5, 2014, midnight | Yes | Station is fully operational | niebling |
| Nov. 27, 2014, midnight | Yes | Station is fully operational | niebling |
| Nov. 13, 2014, midnight | Yes | Station is fully operational | niebling |
| Oct. 20, 2014, midnight | Yes | Internet connection restored after 2+ days. Station was measuring automatically during this time. | dfeist |
| Oct. 17, 2014, midnight | No | Problem with the internet connection. Cannot check status at the moment. | dfeist |
| Oct. 9, 2014, midnight | Yes | Station is fully operational | niebling |
| Oct. 3, 2014, midnight | Yes | niebling | |
| Sept. 25, 2014, midnight | Yes | Station is fully operational but I can not delete my previous wrong entry which indicates it is not operational - sorry | niebling |
| Sept. 25, 2014, midnight | No | Station is fully operational | niebling |
| Sept. 17, 2014, midnight | Yes | Station is fully operational. | dfeist |
| Sept. 8, 2014, midnight | Yes | Station fully operational again after power failure | dfeist |
| Aug. 29, 2014, midnight | Yes | Solar tracker mirrors cleaned for OCO-2. | dfeist |
| Aug. 22, 2014, midnight | Yes | Station is fullyoperational. | dfeist |
| Aug. 14, 2014, midnight | Yes | niebling | |
| Aug. 14, 2014, midnight | Yes | dfeist | |
| Aug. 11, 2014, midnight | Yes | niebling | |
| June 21, 2014, midnight | Yes | Failed laser replaced. FTS has resumed automatic measurements on 2014-06-21 | dfeist |
| May 15, 2014, midnight | No | Container has been shut down due to laser failure. Replacement planned Jun 18 to Jul 1 | dfeist |
| May 8, 2014, midnight | No | Scanner failure on April 28, most likely due to laser breakdown. | dfeist |
| April 17, 2014, midnight | Yes | Instrument operational since 3rd maintenance visit (March 28-April 12, 2014) | dfeist |
| March 4, 2014, midnight | No | Solar tracker azimuth drive failed for unknown reason on 2014-02-21. | dfeist |
| Feb. 14, 2014, midnight | Yes | Instrument continuously running since 2nd maintenance visit (August/Sept 2013) | niebling |
| March 23, 2013, midnight | Yes | 1st maintenance visit from 2013-03-04 to 2013-03-23. Solar tracker repaired and mirrors replaced. | dfeist |
| Feb. 17, 2013, midnight | No | Solar tracker failed on 2012-09-02 and has been sent to Jena for repairs and mirror replacement | dfeist |
| July 20, 2012, midnight | Yes | Reduced data quality because of corrosion problems with solar tracker mirrors | dfeist |
| May 30, 2012, midnight | Yes | Instrument has been installed on Ascension Island. Automatic measurements starting 2012-05-22. | dfeist |
| July 14, 2011, midnight | No | instrument currently in Jena for final preparations to ship it to AI | geibel |
| June 4, 2010, midnight | No | System has arrived at University of Wollongong for 3-month campaign | dfeist |
| April 9, 2010, midnight | No | on transport to Wollongong (AUS) | geibel |
| June 13, 2009, midnight | No | System currently running in Jena - Planned to be running on Ascension mid 2010 | geibel |
| June 12, 2009, midnight | No | Planned to be running mid 2010 | geibel |
| Jan. 22, 2009, midnight | No | Planned to be up and running in 2009. | dwunch |
| Jan. 22, 2009, midnight | No | Has not had an operational status update to date. | dwunch |
| Jan. 22, 2009, midnight | No | dwunch |