| Date | Operational? | Description/reason | Last updated by |
|---|---|---|---|
| July 9, 2024, 3:58 p.m. | Yes | Operational | m_buschmann |
| Sept. 3, 2021, 1:59 p.m. | Yes | Operational | m_buschmann |
| Oct. 21, 2020, 6:03 p.m. | No | Polar Night, measurements will resume in March 2021 | m_buschmann |
| Oct. 21, 2020, 6:01 p.m. | No | No measurementsm scheduled due to Polar Night | m_buschmann |
| July 17, 2019, midnight | Yes | Operational | m_buschmann |
| Sept. 25, 2018, midnight | Yes | Operational | christof |
| Feb. 7, 2018, midnight | No | Polar night, but instrument working. | christof |
| April 15, 2015, midnight | Yes | Routine automatic measurements resumed | m_buschmann |
| Oct. 9, 2014, midnight | No | Schelduled shutdown of sunlight measurements due to polar night | m_buschmann |
| April 7, 2014, midnight | Yes | nmd03 | |
| July 2, 2013, midnight | Yes | Operational | nmd03 |
| May 24, 2011, midnight | Yes | Operational | nmd03 |
| Jan. 22, 2009, midnight | Yes | 30-Sep-2008 by Ronald Macatangay | dwunch |
| Jan. 22, 2009, midnight | Yes | dwunch |