Status history for Caltech

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Date Operational? Description/reason Last updated by
March 30, 2025, 7:43 p.m. Yes coleen
Nov. 9, 2024, 6:24 a.m. Yes Dome is operational again! coleen
Nov. 7, 2024, 11:25 p.m. No Dome slits stuck; data halted 11/7/24 coleen
June 26, 2024, 9:47 p.m. Yes coleen
Jan. 10, 2024, 10:20 p.m. Yes M2 tilt motor coupler set screw tightened- no slippage; dome rotation calc. modified- no late occulting coleen
Nov. 13, 2023, 5:28 p.m. No Coelostat and dome not working properly coleen
Oct. 13, 2023, 5:24 p.m. Yes M2Tilt mirror slipping again; no data collection since 10/9/23 coleen
Oct. 1, 2023, 1:31 a.m. Yes Got the coelostat's M2 Tilt mirror working again today! coleen
Sept. 25, 2023, 5:37 p.m. No M2 tilt of coelostat not working properly; no data since 9/19/23 coleen
Sept. 25, 2023, 5:35 p.m. No M2 tilt of coelostat not working properly coleen
March 9, 2023, 6:24 p.m. Yes All is well coleen
Nov. 15, 2022, 10:04 p.m. Yes Dome shutter is unstuck and measurements have resumed. coleen
Nov. 10, 2022, 10:18 p.m. No Mechanism for opening/closing the dome shutter has failed and needs maintenance coleen
Oct. 26, 2022, 9:58 p.m. Yes Due to Zeno server crash, no measurements made between Oct 19-25, 2022 coleen
May 12, 2022, 8:17 p.m. Yes New laser has been installed coleen
April 18, 2022, 6:58 p.m. No Scanner failure, possibly due to laser failure coleen
Feb. 22, 2022, 6:54 p.m. Yes Issues with the dome, but still operational coleen
Aug. 29, 2021, 7:51 p.m. Yes Integral gain of [M1] servo too high (5000), causing wobbling; adjusted down to 1000 and works again. coleen
Aug. 16, 2021, 9:13 p.m. Yes Made adjustments to M2 encoder. Operational (w/some jerry-rigging at limits) 20210816 coleen
July 21, 2021, 8:35 p.m. No The m1rot mirror of the coelostat is not working; no observations have been made since 7/19/21 coleen
July 7, 2021, 11:21 p.m. Yes Morning/early afternoon observations ONLY (OK for targets); coelostat failure in afternoon coleen
Nov. 24, 2020, 5:54 p.m. Yes Ethernet/serial converter replaced and dome is operational again coleen
Nov. 13, 2020, 2:02 a.m. No Failure to communicate with the dome's motor controller coleen
Oct. 21, 2020, 12:36 a.m. Yes Everything is currently working. coleen
Aug. 3, 2020, midnight No Dome rotation failed; problem unknown coleen
Aug. 3, 2020, midnight Yes Dome went past limit switch; problem corrected and taking InGaAs only now coleen
July 27, 2020, midnight Yes Firewall device on Sol computer replaced coleen
July 14, 2020, midnight No Cannot connect with computer which operates dome and Zeno coleen
March 23, 2020, midnight Yes coleen
Jan. 27, 2020, midnight Yes coleen
Nov. 22, 2019, midnight Yes coleen
Nov. 21, 2019, midnight No Shut down for solar alignment coleen
Oct. 15, 2019, midnight Yes coleen
June 27, 2019, midnight Yes Replaced InSb detector and FTS scanning again! coleen
April 10, 2019, midnight Yes Dome is opening, FTS scanning, but must check alignment coleen
March 5, 2019, midnight No Dome not opening! m_kiel
Feb. 6, 2019, midnight Yes coleen
Aug. 20, 2018, midnight Yes Back online coleen
July 31, 2018, midnight No Zeno computer failure coleen
April 27, 2018, midnight No InSb must be manually filled; no weekend measurements coleen
April 16, 2018, midnight Yes Seems to be working coleen
April 11, 2018, midnight No Laser failure??? coleen
Feb. 6, 2018, midnight Yes coleen
Oct. 2, 2017, midnight Yes coleen
Oct. 2, 2017, midnight No coleen
Sept. 14, 2017, midnight No Dome has not opened since 9/11/17; power supply has been ordered coleen
June 28, 2017, midnight Yes coleen
April 20, 2017, midnight Yes New laser installed and system is working coleen
April 13, 2017, midnight No Laser failure coleen
April 4, 2017, midnight Yes Coelostat powered by external lab supply until replacement arrives coleen
March 21, 2017, midnight No Coelostat is down coleen
March 16, 2017, midnight Yes coleen
Jan. 27, 2017, midnight Yes coleen
Oct. 10, 2016, midnight Yes Has been operational since 10/9/16 coleen
Oct. 7, 2016, midnight No Offline while re-testing new InSb detector coleen
Sept. 29, 2016, midnight Yes coleen
Sept. 24, 2016, midnight No Offline while testing new InSb detector coleen
Aug. 16, 2016, midnight Yes coleen
June 15, 2016, midnight Yes coleen
April 19, 2016, midnight Yes coleen
March 8, 2016, midnight No FTS is offline for testing coleen
Feb. 29, 2016, midnight Yes coleen
Dec. 29, 2015, midnight No Dome failure - On Hold wennberg
Nov. 25, 2015, midnight No Coelostat is not 100% functional. dwunch
Oct. 16, 2015, midnight No FTS is offline for testing coleen
July 9, 2015, midnight Yes Coelostat is back to working... for now. Still debugging. dwunch
July 5, 2015, midnight No Dome failure wennberg
May 21, 2015, midnight Yes dwunch
May 7, 2015, midnight Yes dwunch
Jan. 12, 2015, midnight Yes NASA CMS Field Campaign dates: Jan 25, 27, 29, 31, Feb 3, 5, 7, 10, 12, 14, 16 dwunch
Oct. 14, 2014, midnight Yes NASA CMS Field Campaign dates: Oct 15, 18, 21, 24, 27, 30; Nov 2, 5, 8, 11, 14. dwunch
Sept. 18, 2014, midnight Yes coleen
Sept. 15, 2014, midnight No Issues with the dome coleen
Sept. 2, 2014, midnight Yes All is well coleen
Aug. 6, 2014, midnight Yes Autofill on the LN2 not working, so no InSb data; the TCCON side is operational coleen
June 2, 2014, midnight Yes Coelostat frame grabber is now limping along. InGaAs/Si spectra are being recorded (no InSb, yet). dwunch
May 29, 2014, midnight No Coelostat frame grabber is broken - tracker is not tracking. dwunch
April 10, 2014, midnight Yes wennberg
March 18, 2013, midnight Yes Unjammed the M1EW motor on Tuesday, March 12. dwunch
March 11, 2013, midnight No Coelostat M1EW motor is jammed. No measurements after noon 2013-03-11. dwunch
Feb. 13, 2013, midnight Yes EPM failed on the dome rotation controller. It was replaced and reprogrammed on 2013-02-11. Measurements restarted on 2013-02-12. dwunch
Feb. 10, 2013, midnight No Dome is failing to turn in azimuth. No measurements starting 2013-02-08. dwunch
Sept. 26, 2012, midnight Yes Operational, but with a sub-optimal line shape. dwunch
Sept. 24, 2012, midnight No Switching beamsplitters. dwunch
Sept. 17, 2012, midnight Yes Operational, but with a sub-optimal line shape. New InSb filter installed. dwunch
Sept. 4, 2012, midnight No Laser failure dwunch
June 24, 2012, midnight Yes Switching between InGaAs/Si and InSb (when cold) dwunch
May 4, 2012, midnight Yes Still running OPUS on windows, but operational! coleen
Dec. 16, 2011, midnight No FTS has been installed and is operational; still waiting on suntracker. coleen
Dec. 16, 2011, midnight No FTS has been installed and is operation; still waiting on suntracker. coleen
Sept. 16, 2010, midnight No Just getting started... dwunch