FLWO Tillinghast 60-inch Telescope Log
2018a January-April

Tillinghast Telescope Log for the Month of January 2018

December 2016 January February March April May 2018 Schedule PDF Schedules TDC
Date Observer Inst Observed Lost Weather Inst Tel Obs Comments
01/01/2018 MCalkins TRES 4 8.5 8.5 0 0 0 Observed through clouds until they became too thick. No other issues
01/02/2018 GEsquerdo TRES 9.5 3 3 0 0 0 Clear early then clouds for the last third of the night. Shut down for about three hours, then re-opened at the very end of the night. No problems
01/03/2018 GEsquerdo TRES 0 12.5 12.5 0 0 0 Cloudy all night with just a couple of drops of rain late. Never opened
01/04/2018 GEsquerdo TRES 12.5 0 0 0 0 0 Clear all night. Variable but mostly good seeing throughout. One projector arm hang but no other problems
01/05/2018 GEsquerdo TRES 12 0.5 0.5 0 0 0 Mostly clear early with increasing clouds late finally becoming quite thick and moonlit about astronomical twilight. More productive a night than I expected
01/06/2018 GEsquerdo TRES 0 12.5 12.5 0 0 0 Clouds all night. Never opened
01/07/2018 PBerlind TRES 6 6 6 0 0 0
01/08/2018 PBerlind TRES 6 6 6 0 0 0 end of TRES run
01/09/2018 MCalkins FAST 0 12 12 0 0 0 Fog and rain
01/10/2018 MCalkins FAST 5.5 6.5 6.5 0 0 0 where it was
01/11/2018 MCalkins FAST 12.5 0 0 0 0 0 Observed in clear skies and mostly good seeing; no problems
01/12/2018 PBerlind FAST 12 0 0 0 0 0
01/14/2018 PBerlind FAST 12 0 0 0 0 0 a few thin clouds, super tight seeing
01/14/2018 MCalkins FAST 12 0 0 0 0 0 Observed all night in mostly clear skies and excellent seeing
01/15/2018 MCalkins FAST 8 4.5 4.5 0 0 0 Night began with clear skies and good seeing, clouds gradually increasing until closing..... The 48" had a problem with its shutter (which turned out to be a faulty cable connection). No other problems
01/16/2018 MCalkins TRES 9.5 3.0 3.0 0 0 0 Lost the very beginning of the night to clouds. Observed most of the remainder through cirrus but with excellent seeing. No troubles with start of Tres run
01/17/2018 GEsquerdo TRES 12 0 0 0 0 0 Clear throughout but with seeing that got increasingly poor after the first third of the night thanks to a north then east wind. Otherwise, no problems
01/18/2018 GEsquerdo TRES 12 0 0 0 0 0 Clear early but thin cirrus for the second half. Variable seeing, particularly early. Challenging conditions but workable thanks to a lack of moonlight. No problems
01/19/2018 GEsquerdo TRES 12 0 0 0 0 0 Clear almost the entire night until light but rapidly increasing clouds came in at the very end of the night. Seeing was quite good letting me work on fainter targets. No problems
01/20/2018 GEsquerdo TRES 4.5 7.5 7.5 0 0 0 Clouds and very light sleet/snow not long after sunset. Skies finally cleared about 2:00 but with poor seeing for the remainder of the night. No problems
01/21/018 GEsquerdo TRES 10.75 1.25 0 1 0.25 0 Mostly clear with only thin and variable cirrus. Seeing was poor early but improving late
01/22/2018 PBerlind TRES 12 0 0 0 0 0
1/24/2018 PBerlind TRES 8 4 4 0 0 0 High wind 50mph gusts
01/24/2018 MCalkins TRES 12.5 0 0 0 0 0 Observed in clear skies and initially poor seeing which improved nicely as the night went on
01/25/2018 MCalkins TRES 12.5 0 0 0 0 0 every night
01/26/2017 MCalkins TRES 12.5 0 0 0 0 0 Seeing was a little soft at beginning of night but became excellent by the end... A loose band of cirrus passed through in the middle of the night. No problems with telescope or instrument
01/27/2018 PBerlind TRES 9 3 3 0 0 0 seeing 3-4", no light entering fiber. windy
01/28/2018 PBerlind TRES 3 9 9 0 0 0 4-5" seeing. Closed due to high wind
01/30/2018 MCalkins TRES 12.5 0 0 0 0 0 Observed in clear skies with initially soft seeing which tightened up nicely. No problems
01/30/2018 MCalkins TRES 11.5 1.0 1.0 0 0 0 darkening
01/31/2018 MCalkins TRES 12.5 0 0 0 0 0 Observed in clear skies and mostly excellent seeing (seeing got soft for an hour or so in the second half of the night); no problems.... Kepcam filled manually

Tillinghast Telescope Log for the Month of February 2018

December 2016 January February March April May 2018 Schedule PDF Schedules TDC
02/01/2018 GEsquerdo TRES 12 0 0 0 0 0 Variable clouds all night, but I was able to observe through the worst of it. No problems beyond one projector arm hang
02/02/2018 GEsquerdo TRES 6.5 5.5 5.5 0 0 0 Clouds early and late, being mostly clear in the middle. A frustrating night with a couple targets abandoned in mid-sequence because of the clouds. No problems
02/03/2018 GEsquerdo TRES 12 0 0 0 0 0 Clear all night with very light cirrus off to the north a couple times. Seeing good early, quickly changed to poor for most of the remainder then good again at the very end. No problems
02/04/2018 GEsquerdo TRES 12 0 0 0 0 0 Clear all night with excellent seeing throughout. An absolute of a treat of a night after the last few. On projector arm hang but otherwise no problems
02/05/2018 GEsquerdo TRES 12 0 0 0 0 0 Essentially clear with only variable and light cirrus. Seeing OK early, becoming softer later. One projector arm hang but otherwise no problems
02/06/2017 PBerlind TRES 11.5 0 0 0 0 0 projector arm hit limit, bad comps. but fixed at start of night with rehome
02/07/2018 PBerlind TRES 11.5 0 0 0 0 0 projector arm hit limit, bad comps. but fixed at start of night with rehome
02/08/2018 MCalkins FAST 0 11.5 0 0 11.5 0 s an undiagnosed problem with the detector electronics. We
02/09/2018 MCalkins FAST 11.0 0.75 0.75 0 0 0 Lost some time to clouds but otherwise observed in good seeing. The new monitor for the guider is a huge improvement. Image is much brighter and it is unaffected by the comm radio (unlike old CRT monitor). Big improvement!
02/10/2018 MCalkins FAST 8 3.5 3.5 0 0 0 Observed around and through clouds for most of the night in moderate seeing. Roll-around dewar refilled last night
02/11/2018 PBerlind FAST 0 11 11 0 0 0 fog
02/12/2018 PBerlind FAST 6 6 6 0 0 0 fast guide tv monitor display is no good. it is a broken monitor and displays poor quality image. huge color gradient. brightness and contrast displays do not work. poor viewing angle ancient display more than 10 years old. urgent replace asap. send
02/13/2018 MCalkins FAST 0 11.5 11.5 0 0 0 Tried to work a hole and got some standard stars. But clouds too thick for science targets
02/14/2018 MCalkins FAST 0 11.5 11.5 0 0 0 Soaking rain all night. End of FAST run. Lift has be charged
02/15/2018 MCalkins TRES 0 12 12 0 0 0 Another night of soaking rain and fog
02/16/2018 PBerlind TRES 0 11 9 0 0 2
02/17/2018 PBerlind TRES 5 6 6 0 0 0
02/18/2018 GEsquerdo TRES 0 11 11 0 0 0 Fog and clouds all night with periodic rain. Never opened
02/19/2018 GEsquerdo TRES 0 11 11 0 0 0 Clouds, high humidity with fog and elevated winds all night. Some snow flurries at the end of the night. Never opened
02/20/2018 GEsquerdo TRES 6.5 4.5 4.5 0 0 0 Mostly clear at sunset but had a cap-cloud trying off and on to form until about 2:00 when that finally settled in, ending my night. Elevated humidity and poor to below average seeing during the time I was open. No other problems
02/21/2018 GEsquerdo TRES 2.25 8.75 8.75 0 0 0 Clouds until about 2:00, when the sky quickly cleared. Seeing was poor but workable until the humidity spiked and brought in fog after only a couple hours, ending the night. No problems
02/22/2018 GEsquerdo TRES 11 0 0 0 0 0 Clear all night (finally!) with average seeing. No problems
02/23/2018 PBerlind TRES 5 6 6 0 0 0 psfs > 3.5"
02/24/2018 PBerlind TRES 11 0 0 0 0 0
02/25/2018 MCalkins TRES 12 0 0 0 0 0 Full night of observing in clear skies and good seeing
02/26/2018 MCalkins TRES 11.5 0.5 0.5 0 0 0 Clear skies and good seeing until clouds moved in at the very end
02/27/2018 MCalkins TRES 0 12 12 0 0 0 Clouds, fog, 4"+ snow
02/28/2018 GEsquerdo TRES 10.25 0.75 0 0.75 0 0 Spent the first 45 minutes of the night getting the new flwo60 set up correctly after the OS update. Things worked out well after that with no problems. Clear skies but soft seeing throughout

Tillinghast Telescope Log for the Month of March 2018

December 2016 January February March April May 2018 Schedule PDF Schedules TDC
03/01/2018 GEsquerdo TRES 11 0 0 0 0 0 Clear all night. Good seeing in the middle of the night, being a little soft at the start and again at the end. No problems
03/02/2018 GEsquerdo TRES 11 0 0 0 0 0 Clear all night with reasonably good seeing until the last 1/4 of the night or so when it became below average. No problems
03/03/2018 PBerlind TRES 8 3 3 0 0 0
03/04/2018 PN TRES 4 6 6 0 0 0 bright moon, clouds
03/05/2018 MCalkins TRES 8.5 3.5 3.5 0 0 0 Observed with occasional clouds in mostly good seeing before being over run by clouds
03/06/2018 MCalkins TRES 12 0 0 0 0 0 Observed the whole night in clear skies and good to excellent seeing
03/07/2018 MCalkins TRES 6.0 6.0 6.0 0 0 0 Observed thru, around, and in-between clouds in good to great seeing
03/08/2018 GEsquerdo TRES 7 3.5 0 0 0 0 Variable clouds pretty much all night, finally clearing at the very end. Had a long stretch after the first couple hours I was able to work through. One projector arm hand at the very end but otherwise no problems
03/09/2018 GEsquerdo TRES 8.5 2 2 0 0 0 Variable clouds all night. Heaviest after midnight with plenty of sucker holes then mostly clear at the very end. A productive but rather frustrating night with the weather. No problems
03/10/2018 GEsquerdo TRES 0 10.5 10.5 0 0 0 Clouds all night with some rain. Never opened
03/11/2018 PBerlind TRES 6 5 5 0 0 0 end of TRES run. 60" mirror covers making noise when opening
03/12/2018 PBerlind FAST 5 6 6 0 0 0
03/14/2018 John Lewis FAST 4 7 7 0 0 0 high humidity shutdown at 11pm
03/13/2018 John Lewis FAST 11 2 0 0 0 2 CfA photographers were photographing the 60"
03/16/2018 PBerlind FAST 5 6 6 0 0 0 error1 on 1.2m
03/17/2018 PBerlind FAST 9 2 2 0 0 0
03/18/2018 PChallis FAST 9 0 0 0 0 0 everything worked fine. Perhaps the Button to
03/19/2018 PChallis FAST 9 0 0 0 0 0 no problems
03/20/2018 PChallis FAST 9 0 0 0 0 0 no problems. see log on 03/18/2018
03/21/2018 GEsquerdo TRES 7.27 2.75 2.75 0 0 0 Clouds of varying thickness all night. Mostly clear early, increasing as the night progressed, finally shutting me down in the last hour. No problems
03/22/2018 GEsquerdo TRES 2.25 7.75 7.75 0 0 0 Clouds all night with a workable sucker hole later on. Frustrating observing when I had it. No problems
03/23/2018 GEsquerdo TRES 6 4 4 0 0 0 Clouds all night. Mostly cirrus that I worked through with varying degrees of success, but a longer block where the clouds were too thick to see anything. Again, a frustrating night. No problems
03/24/2018 GEsquerdo TRES 5 5 5 0 0 0 In what is becoming a theme, another frustrating and cloudy night, breaking enough to work brighter targets a bit after midnight. Mostly clear at the very end but with high humidity. No problems
03/25/2018 GEsquerdo TRES 0 10 10 0 0 0 Cloudy all night. Never opened
03/26/2018 MCalkins TRES 8 3 3 0 0 0 Observed in soft seeing after weather moved out. No problems
03/27/2018 MCalkins TRES 11 0 0 0 0 0 Observed in clear skies and mostly good seeing. No problems
03/28/2018 MCalkins TRES 11 0 0 0 0 0 Observed the whole night in clear skies and initially good seeing which blew up at the very end of the night.... Dewar ion pump had error in late afternoon yesterday. Cycled power to clear error; vacuum looks good
03/29/2018 MCalkins TRES 10 1.0 0 1.0 0 0 Night was mostly clear but observed giants through a few bands of transient clouds in mostly good but moderate seeing..... The south declination button on hand paddle in control room failed. The repair was fairly quick but finding the appropriate tools an
03/30/2018 PBerlind TRES 6 4 4 0 0 0 clouds + bright moon all night
03/31/2018 PBerlind TRES 0 10 10 0 0 0

Tillinghast Telescope Log for the Month of April 2018

December 2016 January February March April May 2018 Schedule PDF Schedules TDC
04/01/2018 GEsquerdo TRES 10 0 0 0 0 0 Rapidly disappearing clouds at sunset left clear skies with reasonable seeing all night. No problems
04/02/2018 GEsquerdo TRES 10 0 0 0 0 0 Mostly clear all night with only a brief stretch of very light cloud passing through midway through the night. Seeing was OK to start but softened early in the night then improving at the very end. No problems
04/03/2018 GEsquerdo TRES 10 0 0 0 0 0 Clear all night with good seeing throughout. No problems
04/04/2018 MCalkins TRES 10 1.5 1.5 0 0 0 Nice night once early clouds moved out.
04/05/2018 MCalkins TRES 8 3.5 3.5 0 0 0 Observed through and around clouds in mostly excellent seeing
04/07/2018 MCalkins TRES 6 5 5 0 0 0 Observed through and around clouds in good seeing until thicker clouds moved in
04/07/2018 PBerlind TRES 10.5 0 0 0 0 0
04/08/2018 PBerlind TRES 3 7 3 0 0 0
04/09/2018 MCalkins Tres 11 0 0 0 0 0 Observed in clear skies with seeing that was initially soft but tightened up nicely. End of Tres run
04/10/2018 MCalkins FAST 9.5 0 0 0 0 0 Observed in clear skies with good seeing. No problems
04/11/2018 MCalkins FAST 7.5 2.0 2.0 0 0 0 Observed in mostly clear skies with good seeing once clouds moved out
04/12/2018 PBerlind FAST 6 4 4 0 0 0
04/13/2018 PBerlind FAST 10 0 0 0 0 0
04/14/2018 MCalkins FAST 9.5 0 0 0 0 0 Nice night. Clear with good seeing
04/16/2018 MCalkins FAST 8.5 1.0 1.0 0 0 0 ve got them charging and have unplugged dome power to prevent movement of dome. I
04/16/2018 MCalkins TRES 0.5 10.0 10.0 0 0 0 Clouds.....
04/17/2018 PBerlind TRES 10 0 0 0 0 0
04/18/2018 PBerlind TRES 10 0 0 0 0 0
04/19/2018 PBerlind TRES 10 0 0 0 0 0
04/20/2018 GEsquerdo TRES 9.5 0 0 0 0 0 Clear early with very thin cirrus late. Seeing was soft all night from a north wind. No problems
04/21/2018 GEsquerdo TRES 1.25 8.25 8.25 0 0 0 Cloudy to mostly cloudy the majority of the night, breaking at the end but never becoming truly clear until it was dawn. No problems
04/22/2018 GEsquerdo TRES 9.5 0 0 0 0 0 Mostly clear all night with only a brief and very thin passing of cirrus in the first half. No problems
04/23/2018 GEsquerdo TRES 9 0.5 0.5 0 0 0 Clear early becoming partly cloudy part-way through finally becoming mostly cloudy for a while near the end. Otherwise, no problems
04/24/2018 GEsquerdo TRES 3 6.5 6.5 0 0 0 Cloudy and mostly cloudy for most of the night, breaking up late before becoming clear at the start of morning twilight. No problems
04/25/2018 GEsquerdo TRES 9 0.5 0.5 0 0 0 Mostly clear until cirrus came in late. Shut down early when I was losing lots of counts. Otherwise, no problems
04/26/2018 PBerlind TRES 0 10 10 0 0 0
04/27/2018 PBerlind TRES 5 5 5 0 0 0
04/28/2018 MCalkins TRES 9.0 0.5 0 0.5 0 0 Observed most of the night in clear skies and good seeing. Lost some time due to shutter issues with 48"
04/29/2018 MCalkins TRES 6 4 4 0 0 0 Observed through and around clouds in good seeing when able, end of night cleared nicely... Shutter for 48" failed a little after 3am. Although, I noticed that the robot was open in somewhat murky skies at high airmass.. Could this trick the robot should
04/30/2018 MCalkins TRES 3.0 6.5 6.5 0 0 0 Observed Giants through and between cirrus clouds in variable seeing