| Date | Operational? | Description/reason | Last updated by |
|---|---|---|---|
| June 17, 2025, 5:40 a.m. | No | operation paused/intermittent at best pending getting an operator on site to check on the suntracker hardware | e_mcgee |
| June 17, 2025, 4:11 a.m. | Yes | Measurements being made remotely from Toronto, but consistent issues with suntracker persist | e_mcgee |
| May 13, 2025, 7:53 p.m. | Yes | Measurements being made remotely from Toronto | strong |
| May 13, 2025, 7:53 p.m. | Yes | Measurements being made remotely | strong |
| March 27, 2025, 3:39 p.m. | Yes | Site operational | e_mcgee |
| March 8, 2024, 2:06 a.m. | No | Robodome tentatively fixed, but on-site visit required for instrument startup currently impossible due to road conditions (washout). | e_mcgee |
| Aug. 14, 2023, 4:21 p.m. | No | Robodome again stopped responding to commands at end of summer campaign (July 13th 2023), waiting to get personnel on site again to repair | e_mcgee |
| Aug. 14, 2023, 4:21 p.m. | Yes | Measurements resumed July 5th 2023 during summer campaign with on-site personnel | e_mcgee |
| Aug. 14, 2023, 4:20 p.m. | No | Robodome stopped responding to commands via suntracker software at end of spring campaign (April 12th 2023) | e_mcgee |
| Aug. 11, 2023, 3:21 p.m. | Yes | Measurements resumed with on-site personnel March 20th 2023 during spring campaign | e_mcgee |
| Aug. 26, 2022, 4:04 p.m. | Yes | Remote operation resumed Aug. 18 2022 | e_mcgee |
| June 22, 2022, 3:55 p.m. | No | No personnel on site since 29-5-2022 - solar beam not reaching detectors. Measurements will resume once we can get personnel on site to resolve issue. | e_mcgee |
| Oct. 29, 2021, 2:35 p.m. | No | Laser failed in July 2020. New laser installed in Oct. 2021. Will resume operation after Polar Sunrise (Feb-Mar 2022) | sebastien.roche |
| June 28, 2021, 7:58 p.m. | No | Laser failed in July 2020. Will resume operation when personnel can access site for replacement. | sebastien.roche |
| Dec. 16, 2020, 8:40 p.m. | No | not operational during Polar Night, operations will resume in late Feb/ early March 2021 | sebastien.roche |
| July 20, 2020, midnight | No | Not operational since July 7. Possible laser failure. | sebastien.roche |
| April 7, 2020, midnight | No | No personnel on site since March 29. Remote operations from Toronto. | sebastien.roche |
| Feb. 22, 2020, midnight | Yes | Personnel on site, supporting remote operations from Toronto | sebastien.roche |
| Jan. 6, 2020, midnight | No | FTIR has been turned off for polar sunset sunset since Nov. 15th 2019. Will restart in late Feb. 2020 | sebastien.roche |
| March 8, 2019, midnight | Yes | Instrument aligned. Personnel on site, supporting remote operations from Toronto | sebastien.roche |
| Nov. 5, 2018, midnight | No | FTIR has been turned off for polar sunset. Will restart in late Feb. | sebastien.roche |
| Feb. 25, 2018, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | sebastien.roche |
| Feb. 6, 2018, midnight | No | FTIR has been off since polar sunset in late October. Will restart in late Feb. | strong |
| Aug. 10, 2015, midnight | Yes | Laser has been replaced. Personnel on site and remote operations from Toronto. | mendonca |
| July 9, 2015, midnight | No | Possible laser failure | mendonca |
| May 21, 2015, midnight | Yes | Personnel on site, dome working, supporting remote operations from Toronto. | strong |
| April 21, 2015, midnight | No | Problems with sun tracker Dome. Currently unable to open Dome. | mendonca |
| April 2, 2015, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | mendonca |
| March 26, 2015, midnight | Yes | Resumed NIR operations March 16. Personnel on site supporting remote ops from Toronto. | strong |
| Sept. 4, 2014, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | mendonca |
| Aug. 29, 2014, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | mendonca |
| Aug. 21, 2014, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | mendonca |
| Aug. 7, 2014, midnight | Yes | Personnel on site, supporting remote operations from Toronto. | mendonca |
| June 16, 2014, midnight | Yes | Personnel on site, supporting NIR/MIR remote operation from Toronto | strong |
| June 3, 2014, midnight | Yes | Resumed measurements 22 Feb 2014. Mid-IR/near-IR until 30 April. Near-IR only when no operator on site. | strong |
| June 3, 2014, midnight | No | Intermittent measurements during 2013 summer and fall campaigns: June 22, July 3 and 4, Oct 14 and 15 | strong |
| April 22, 2013, midnight | No | Intermittent measurements in campaign mode: 20 days in 2012 (campaigns 27Feb-18Mar, 25June-4July, 13-20Oct); 7 days so far in 2013 (7Mar-1Apr) | strong |
| May 30, 2012, midnight | No | Operations at PEARL reduced as of April 2012. Instrument off. Summer measurement campaign planned. 30-May-2012 by KS. | strong |
| May 2, 2010, midnight | Yes | Alternating mid-IR and near-IR measurements, weather permitting. Mid-IR operational August 2006. Near-IR upgrade September 2009. 3-May-2010 by KS. | strong |
| Jan. 22, 2009, midnight | No | Mid-IR measurements, weather permitting. Near-IR measurements by request only. Last Near-IR measurements in April 2008. 27-Aug-2008 by RB. | dwunch |