|09/01/2019||GEsquerdo||TRES||5.5||4.5||4.5||0||0||0||It looked too clean when I went to process it, so opted to run another model before observing science targets for the remainder of the night. I|
|09/02/2019||GEsquerdo||TRES||4.33||5.66||5||0.66||0||0||Clouds early, breaking just after midnight, becoming clear for the last few hours. Seeing was on the poor side with a north wind|
|09/03/2019||GEsquerdo||TRES>||10||0||0||0||0||0||Mostly clear all night but with soft seeing, getting a bit worse late with the change in wind direction. Productive night despite the poor conditions|
|09/04/2019||GEsquerdo||TRES||7||3||3||0||0||0||Clouds early, breaking after a few hours and leaving clear skies for the remainder. Soft seeing most of the night with an east wind, improving when the wind calmed towards the end of the night|
|09/05/2019||DLatham DYahalomi||TRES||1||9||8||1||0||0||We pointed to Vega soon after sunset and were pleased to see that it came up within about 15 arc seconds of the fiber. Then heavy clouds shut us down. A couple hours later a big sucker hole moved in from the west and we acquired Vega again. This time i|
|09/06/2019||DLatham DYahalomi||TRES||3.5||6.5||6.0||0.5||0||0||Pointing was somewhat better tonight. The declination was better than RA, probably no more than arc minute. A couple of targets came up in the guide field, but the rest were off by as much as 5 arc minutes. Once again this slowed us down, as we were wo|
|09/07/2019||DLatham DYahalomi||TRES||10||5.5||5||0.5||0||0||W to 8|
|08/09/2019||DLatham DYahalomi||TRES||10||10||10||0||0||0||Nice clear blue skies all afternoon, but with ominous clouds on the horizon. Opened the telescope and found Vega, only to be shut down by solid clouds that appeared out of nowhere. Fog soon reached the Ridge. Perry showed up and we discussed fine points|
|09/09/2019||PBerlind||TRES||0.5||9.5||9.5||0||0||0||Fog. Telescope drives powered off. Coma and astigmatism in star images. Vega on guide tv, other targets many arcminutes away from fiber not on guide tv after slew. ThAr comps have low counts, projector arm appears to be off fiber center|
|09/10/2019||PBerlind||TRES||0||10||10||0||0||0||Fog. Found black and decker portable tool charger in control room (dfm)|
|09/11/2019||PBerlind||TRES||10||0||0||0||0||0||Occasional minor oscillations in RA. Guider froze, could not ping tres-guider, but tres-guider pc was alive and ok at monitor. Rebooted and was back on network. NTCS HA display always reads 0, file headers okay. Took pointing model data|
|09/12/2019||GEsquerdo||TRES||9||1||1||0||0||0||Mostly clear most of the night with light debris clouds throughout. One batch in first third of the night had me idle for an hour|
|09/13/2019||GEsquerdo||TRES||0.33||9.66||9.66||0||0||0||Partly cloudy at sunset with a few sucker holes I tried to work through until getting shut down for the night not long after opening|
|09-14-2019||GEsquerdo||TRES||0||10||10||0||0||0||Clouds with high humidity then fog in the latter half. Rain starting in the last couple of hours. Never opened|
|09/15/2019||GEsquerdo||TRES||9.5||0.5||0.5||0||0||0||Cirrus clouds most of the first half, thick enough for a while to have me sit idle. These cleared out around midnight leaving clear skies for the remainder|
|09/16/2019||PBerlind||TRES||5||5||5||0||0||0||Occasional RA oscillation, few Hz, 7" amplitude, intermittent, SE part of sky. While tracking the stars drift in both RA and DEC, 1-2 arcsec per minute, tip-tilt guider quickly reaches end of travel limit|
|09/17/2019||PBerlind||TRES||10||0.2||0.2||0||0||0||Mostly clear night with good seeing. Clouds moved in at end of night. Some infrequent RA oscillations.|
|09/18/2019||PBerlind||TRES||6||4||4||0||0||0||Several batches of clouds moved through during the night. Poor seeing. No changes with pointing or oscillations|
|09/20/2019||GEsquerdo||TRES||1||9||9||0||0||0||Mostly clear early but rising humidity brought cap clouds then fog to end the night|
|09/21/2019||GEsquerdo||TRES||0.75||9.25||9.25||0||0||0||Clouds most of the night with some fog in the middle. Breaking just before dawn with a brief sucker hole allowing a few observations to be made|
|09/22/2019||GEsquerdo||TRES||0||10||10||0||0||0||Clouds with rain early then high humidity and fog. Never opened|
|09/23/2019||GEsquerdo||TRES||0||10||10||0||0||0||Fog settled in not long after sunset. I departed the mountain around 8:00PM. I forced a fill on FAST around 7:15PM before leaving|
|09/24/2019||PBerlind||TRES||1||9||9||0||0||0||Clear hole just after sunset, then clouds, fog, and rain. Telescope pointing very challenging|
|09/25/2019||PBerlind||TRES||0||10||10||0||0||0||Rain, thick fog, waiting out this last hour. No observations. End of TRES run|
|09/25/2019||PBerlind||TRES||1||9||9||0||0||0||On the sky for last hour of night after rain and fog|
|09/26/2019||WBrown||FAST||10||10||0||0||0||0||I got on-sky for about 40 min before humidity closed the Ridge this evening.
* Good news: the FAST system appears to work fine. All of the TCS Tele Task controls, like "Set TelePos," worked correctly.
* My first slew, to a bright star very near zenith, was well over 6 arcmin away from the telescope pointing.
* I clicked "Set TelePos" in TCS, slewed to another star and then back, and the first star lined up where it was supposed to.
* Since humidity was quickly rising, I did not attempt a pointing grid. But Jonathan Irwin is very interested in analyzing a dense pointing grid (we talked about it atdinner), so I'll get that done tomorrow.
* I did some N-E-S-W offset tests at different PA, which seemed to work well. But we need to fix the hand paddle, the east-west swap is so confusing.
* I slewed to a science target to test guiding, but had to close.
* Another thing: when I tipped the telescope South to put tape over the bright blue light above the secondary mirror (on the Renishaw box), I noticed that the primary looks quite dusty. Which likely explains its poor UV throughput.
|FAST||9||1||0||1||0||0||On-sky all night.
* Targets track completely out of the slit in 30 seconds. This appears to be due to the HA and Dec "tracking correction" values, that Galil computes from differentiating the pointing model, unique values for every target. If we apply the exact opposite numbers in the Rates menu, then targets stay on the slit. I don't understand why DFM thinks the sky moves N-S.
* The FAST guider sends corrections, but they do not appear to move the telescope. (Targets drift the same with or without the guider on.) Thanks to Ted for calling in to diagnose the issues.
* We observed the HA oscillation. Multiple times. Luckily the slit is E-W.
* We did a pointing grid spiraling out from zenith.
* TheSkyX coordinates for the bright stars are significantly different than our bright star catalog. Perhaps they use epoch 2019.0927? Not understanding TheSkyX, we used brightstar.mct.
* The TCS/Galil system allowed us to slew to a target beyond the west limit. We had to use jumpers to recover. We then did two more pointing tests that will have to be manually added to the main pointing grid catalog: 20190927.pat.
|FAST||4||6||6||0||0||0||Telescope would not slew to the target at the beginning of the night. We restarted Galil which allowed us to start slewing once again. However, we started to slew but Galil reset the target position to 0-0-0. The system allowed us to slew, which we stopped before it got too far. The software was allowing us to slew to a target far beyond the limit, which is concerning. Worked with Ted to try to attempt at fixing the guiding system. Ted is updating the software in an attempt to improve tracking. Attempted to restart the TCS window to redeploy the new guiding software but it hung on the initialization of the ADC. The yellow TCS window never appeared. We attempted several times to try to recover the ADC but everything hung. We are now going to try to restart FLW60 Humidity is high at 87% so we decided to close.|
|FAST||10||0||0||0||0||0||* When we first slewed from stow position, telescope only went half way and we had to restart Galil in order to complete the slew.
* Dome incorrectly positioned itself twice.
* The guider rapidly pulls stars off of the target, typically in the S direction within a matter of 15 sec.
|FAST||9||1||0||0.5||0.5||0||Variable clouds all night. Yellow TCS window crashed twice, once after we pressed "stow tele." We tested guider updates, but in all trials it quickly pulls the target off the slit by 5-10 arcsec before stabilizing, as if it corrupted the starting location. When observing a target at HA=-1.5 hr, Dec=-8 deg, the telescope was unable to more N-S at guide speed, and at set speed had large hystersis (we had to press the set button for a while to get a N-S movement). This did not occur again after slewing to another target.|
|10/01/2019||GEsquerdo||TRES||9.0||1.5||1||0||0.5||0||Clear all night but I did have an hour in the middle of the night when the humidity spiked over limit with a little fog. This dried out leaving a clear second half. Did take a little time at the start of the night adjusting the position of the projector|
|10/02/2019||GEsquerdo||TRES||10||0.5||0.5||0||0||0||Mostly clear to start but then pesky debris clouds for a while. I was mostly able to observe around these, but did have to sit idle for a little bit. These departed leaving clear skies, but soft seeing thanks to an east wind|
|10/03/2019||GEsquerdo||TRES||0.5||10||10||0||0||0||Clouds similar to debris clouds but without an associated storm carried on from the afternoon into the evening. A brief break part-way through allowed two observations before clouding over for the rest of the night|
|10/06/2019||Dave Latham||TRES||11.5||0||0||0||0||0||I worked through bands of clouds that streamed across from the west starting at sunset. They were there most of the night, but were gone at dawn. The seeing was okay, tightening up over the final few hours. I changed the tracking rate to 15.030 as suggested by Perry. That's just a hair slow. Overall it may be slightly better than 15.041. The optimum rate when relying on just the drive varies with area of the sky. I also changed the landing zone from 30' to 60", but that made the landing errors worse. Short moves are often bang on. Long moves, the first axis to finish is quite precise, but the second axis often hunts and some times punts. I saw an error as large as 9 arc minutes at the end of a move. You can hit te again, and it does better because its a real short move, or you can paddle to the desired target coordinates. I only saw bad oscillations a couple of times. I had one periscope hang. Otherwise, everything worked. I have not seen a guider crash yet. I have learned to hit the right button when I want to move east more than half the time, now. It's hard to break a habit ingrained over a few decades.|
|10/07/2019||Dave Latham||TRES||9.5||2||0||0||2||0||Fair weather clouds dissolved a little after sunset. The seeing was pretty good after that. Debris clouds moved through a bit before midnight, but I was able to dodge them. It more or less cleared up after a while, and the seeing got worse. I got a warning for low Th-Ar counts. I rehomed the projector arm, but that did not solve the problem. I checked the projector arm during a cex, and it appeared to be working ok. Then I checked the lamp current, and it barely got registered any current. I pulled the lamp and checked connections. I did get the lamp to start once (out of many attempts). I found a Photron in the computer room, and it fired right up, so I installed it. It's a bit weaker than the Cathodeon was, so I extended the exposure time to 10 seconds, using a new alias "cex10" as a temporary solution. I lost a total of about 2 hours.|
|10/08/2019||Dave Latham||TRES||11.5||0||0||0||0||0||Generally clear all night. Excellent seeing at the beginning, but variable during the night. The oscillation was annoying early in the night, then it quieted down. Some parts of the sky still give pointing errors larger than 5'. In other parts the target comes up in the middle of the guider. It sure is more efficient when you don't have to locate where you are from faint star patterns. For some of the night I downloaded 30' charts to make sure I could find the field. Two guider crashes, no obvious reason why. Coordinated TESS targets with the FIES team on NOT.|
|10/09/2019||Dave Latham||TRES||10.5||1||0||0||1||0||A nice clear night, but windy. Seeing was tight to start with, gradually deteriorated as it got colder. The focus setting gets more negative as the ambient temperature drops. At 8:15 MST I pointed to TOI-1083 (19:06 +72) and checked the focus. The focus reading got less negative no matter which button I pushed. At first I thought it was a bad "IN" button on the hand paddle, so I pfutzed with that. Insides looked okay. Next I stowed the telescope, thinking I might have to cycle the drive box power. But, both buttons worked at stow. Back to TOI-1083. Both buttons give less negative readings. Back to stow. Changed hand paddles with the one in the dome. Back to TOI-1083. The buttons worked for the rest of the night. That cost me an hour.|
|10/10/2019||PBerlind||TRES||10||0||0||1||0||0||Little to no oscillation. After updating telescope coordinates near zenith, pointing was off for most targets by 200+ arcsec. Could not find final targets of the night in twilight sky. There is no precise way to measure or keep track of offsets anymore. Clear, seeing pretty good, dome seeing at times in the east.|
|10/11/2019||PBerlind||TRES||11||0||0||0||0||0||A few stars in the SE were oscillating. Clear, really good seeing at times. Tried to maximize counts on Vega with second visit going through focus but found low equal counts anywhere near focus|
|10/12/2019||GEsquerdo||TRES||10.25||0.5||0||0||0.5||0||Clear all night with OK but variable seeing. RA oscillation seemed fairly tame most of the night, but but became noticeable with the shorter exposures on brighter stars. Probably there all night, but not as apparent during more routine observations. ThAr comp levels were quite low at the start of the night, as expected from notes and messages from the previous few days. After the calibration frames, I attempted to adjust the rotation of the lamp in the turret to optimize counts and quickly noticed the lamp had "bad" written in faded/worn ballpoint pen on the label. Suspecting this was the reason for the low counts, I replaced this with the ThAr lamp that Dave Latham bought earlier in the year. I spent some time adjusting the lamp in the turret to maximize counts, finally finding the optimum rotation yielding about 22k counts in the exposure checker at 10.5ma current. I collected a new set of calibrations after this and before observing for the rest of the night with this new lamp.|
|10/13/2019||GEsquerdo||TRES||10.75||0||0||0||0||0||Clear all night. Seeing was OK early but became soft and challenging in the second half. No new problems|
|10/14/2019||GEsquerdo||TRES||8.75||2||2||0||0||0||Clear until a very quick and unexpected spike in humidity around 1:00 brought clouds and light fog which shut me down for a couple hours. I reopened to some light cumulus debris clouds for the remainder of the night. Fought bright moonlight most of the time I was open. Seeing was soft all night. No new problems, but the star images appear to be more comatic than usual when the seeing was good enough to notice.|
|10/15/2019||GEsquerdo||TRES||10.75||0||0||0||0||0||Clear all night but with seeing that gradually grew worse as the night progressed becoming quite poor at the end. East wind didn't help here or down the hall at the 48", as usual with wind from this direction. Fought the bright moon most of the night. I was working a target in the far north (+83 degrees) and near the meridian when the focus would only move one direction, regardless of which button was being pushed, both on the handpaddle AND the virtual handpaddle. I stowed the scope and was able to change the focus when at zenith. A strange behavior as it worked without problem before and after this incident.|
|10/16/2019||PB||TRES||10.75||0||0||0||0||0||Improved pointing. Mostly clear, seeing improved as east wind faded away|
|10/17/2019||P Berlind||TRES||9||2||2||0||0||0||Clouds, fog in middle and end. Seeing good at times, very poor in the south east.|
|10/18/2019||P Berlind||TRES||11||0||0||0||0||0||Clear skies. Seeing excellent at times but then was quite poor and variable. No new problems|
|10/19/2019||GEsquerdo||TRES||10.75||0||0||0||0||0||Clear all night with good seeing early, becoming soft a couple hours in|
|10/20/2019||GEsquerdo||TRES||9.25||1.5||0||1.5||0||0||Clear all night but with poor seeing thanks to a gusty northeast then north wind|
|10/21/2019||GEsquerdo||TRES||10.5||0.25||0||0.25||0||0||Clear all night with good seeing to start, but becoming soft after the first third with a shift in the wind direction coming from the north then the east|
|10/22/2019||P Berlind||TRES||9||2||0||2||0||0||Several major malfunctions related to telescope. Clear. Seeing good|
|10/23/2019||P Berlind||TRES||11||0||0||0||0||0||Clear, variable seeing and image quality, not great seeing. Telescope pointing was excellent in the north and west. Targets on tv close to center. Larger RA errors in south. New code thanks Emilio, Jonathan Irwin, DFM. End of TRES run|
|10/25/2019||P Berlind||TRES||11||0||0||0||0||0||Clear, pretty good seeing all night. Excellent pointing for first target of night and for most targets around the sky. In the south targets are a few arcminutes off to the east.|
|10/26/2019||P Berlind||TRES||11||0||0||0||0||0||Pretty bad seeing. Clear. Stars do not come in to sharp focus, very strong astigmatism|
|10/27/2019||P Berlind||TRES||8||3||3||0||0||0||Windy, poor seeing. Clouds passed through. Excellent telescope pointing. Tracking good in some places, tracking rate corrections in DEC are too large in parts of sky|
|10/28/2019||GEsquerdo||TRES||10.5||0.75||0.75||0||0||0||Clouds at the start that I tried to observe through at times but had to sit idle until it cleared out. Mostly clear after that, becoming clear for the rest of the night. Poor seeing early, remaining soft for the bulk of the night. Pointing is much impr|
|10/29/2019||GEsquerdo||TRES||11.25||0||0||0||0||0||Clear most of the night with some light clouds arriving at the end. Seeing was poor most of the night with strong and gusty winds, particularly when the wind shifted to the northwest. No new problems|
|10/30/2019||GEsquerdo||TRES||11.25||0||0||0||0||0||Clear all night after some lingering clouds in the afternoon. Steady east wind all night gave poor and variable seeing|
|10/31/2019||P Berlind||TRES||11||0||0||0||0||0||No pointing, tracking, or slew issues. ThAr counts are low, periscope off, doubled COMP to 10-sec. Clear skies, good seeing was able to focus|
|11/02/2019||P Berlind||TRES||5.5||5.5||5.5||0||0||0||No problems, clouded out at midnight. Clear, good seeing for first part of night|
|11/02/2019||GEsquerdo||TRES||7.5||3.75||3.75||0||0||0||s unusual for this kind of problem. It|
|11/03/2019||GEsquerdo||TRES||9.75||1.5||1.5||0||0||0||Clear to start with clouds in two batches in the middle of the night, some of which I was able to work through but others thick enough I was idle on two separate occasions. Clear again to finish. Reasonably good seeing throughout. RA jitter apparent re|
|11/04/2019||GEsquerdo||TRES||11||0.5||0.5||0||0||0||Clear early with the now expected midnight clouds leaving me idle for a short while. Occasional thin and brief patches of cloud after that until nearly dawn. Good seeing most of the night|
|11/05/2019||GEsquerdo||TRES||4.25||7.25||7.25||0||0||0||Partly cloudy to start the night with holes large and long lasting enough to get quite a few observations in before being shut down a bit before midnight. Seeing was good while I was open. The good seeing allowed me to confirm what I noticed at the end|
|11/7/2019||P Berlind||TRES||6||5||5||0||0||0||Cloudy. 2 new problems. Stowing telescope from ntcs causes ntcs to crash and disappear. Stowing telescope from dfm now causes dome to get lost. Goes to wrong az by 10 degrees and stays incorrect.|
|11/08/2019||GEsquerdo||TRES||11||0.5||0.5||0||0||0||Cloudy to start then mostly clear for the remainder of the night. Several waves of thin cirrus during the night, but never thick enough to keep me from observing. Poor seeing at the start with a strong east wind the improved once the wind slowed down to|
|11/09/2019||GEsquerdo & D. Yahalomi||TRES||2.5||9||9||0||0||0||Clouds early and again with partly cloudy but an observable and partly cloudy gap in the clouds in the middle. Observed a few brighter targets before getting shut down|
|11/10/2019||Daniel Yahalomi and Gil Eqsuerdo||TRES||1.5||10||10||0||0||0||We were killed by clouds for the majority of the night. Towards the end we opened up and observed some brighter targets (Vmag > 5). Gil made sure Daniel knew how to both put together a observing plan if weather cooperates and could operate the telescope f|
|11/11/2019||Daniel Yahalomi||TRES||4.5||7||7||0||0||0||Lost the beginning of the night to heavy clouds. Around 9:45 I opened up and started observing. There were spotty clouds from around 9:45-3:30, that I avoided in my observations. Wind from the East and seeing was not great throughout. Around 3:30, I clos|
|11/12/2019||Daniel Yahalomi||TRES||1||10.5||0||0||10.25||0||Started off night with clear skies and no problems. Observed vega and two rvstd stars. Observed one TESS target. Was in the middle of the first exposure on the second TESS target when the star started to move in RA on the guider. Tried to slew the star ba|
|11/13/2019||Daniel Yahalomi||TRES||0||11.5||0||11.5||0||0||The telescope mount is still not moving in RA. Emilio and I with the help of Damon at DFM tried some troubleshooting today, but were unsuccessful. DFM engineers say that they will discuss the best course of action tomorrow|
|11/14/2019||Daniel Yahalomi||TRES||0||11.5||0||0||11.5||0||The RA motor is still not working. Emilio and DFM ran some tests on the resistance output of the motor when it is being turned by the hand crank and found that it was oscillating.|
|11/15/2019||Daniel Yahalomi||TRES||0||11.5||0||11.5||0||0||RA motor was shipped overnight to DFM today to see if it can be fixed|
|11/22/2019||Jonathan Davis||FAST||9||4||2||2||0||0||Many problems tonight. The graphics card in the FLWO48 computer tower died and had to be replaced. Me and Ameilio replaced it with a spare, which Ameilio said was the last one so more should be ordered|
|11/23/2019||Jonathan Davis||FAST||8||6||4||2||0||0||weather is not the best so I am trying to view Kenyon targets since the are brighter|
|11/24/2019||Jonathan Davis||FAST||0||0||0||0||0||0||Start of the night went smoothly. Switched the telescope to the 1200 grating|
|11/25/2019||Jonathan Davis||FAST||2.5||10||10||0||0||0||The night started very cloudy. I did many calibrations and such|
|11/26/2019||Jonathan Davis||FAST||0||12||12||0||0||0||I finished the calibrations and filling the dewar, was about to take my first rounds of data when thick clouds appeared with a sort of vengeance at 7:00pm. I've stowed the telescope for now|
|11/28/2019||P Berlind||TRES||0||12||12||0||0||0||Clouds, fog. Storm passing by|
|11/30/2019||Esquerdo & Zhou||TRES||12.5||0||0||0||0||0||Mostly clear all night with quickly passing clouds around dusk, with only some thin cirrus after that for a few hours|
|12/01/2019||G Zhou||TRES||11.5||0||0||0||0||0.5||Lost 30 minutes at evening twilight due to me driving the telescope beyond its east limits. Recovered using the jump leads for the DIR limits, and restarting TCS-GO GUI and the FSM electronics box, thanks to Gil and Emilio's help. Dewer was filled at 3.30|
|12/02/2019||G Zhou||TRES||12||0||0||0||0||0||No problems tonight. CCD temperature stayed constant throughout. Conducted DT observation of T0293853437 in clear conditions. Seeing gradually worsened throughout the night. Last observation of RV standard H65583 was aborted due to cloud coverage in morni|
|12/03/2019||G Zhou||TRES||0||12||12||0||0||0||Opened briefly at the start of the night, but gave up after having trouble guiding on 3rd magnitude stars. Rain and wind towards the end of the night.|
|12/04/2019||G Zhou||TRES||0||12||12||0||0||0||Cloudy all night. No issues with telescope of instrument.|
|12/05/2019||P Berlind||TRES||11.5||0||0||0||0||0||Sky conditions were variable and overall not a very productive night|
|12/06/2019||P Berlind||TRES||7||5||5||0||0||0||Slow going observing with extra long exposures for all targets. Bands of clouds then clear at times|
|12/07/2019||GEsquerdo||TRES||0.75||11.75||11.75||0||0||0||Thin but rapidly increasing clouds at sunset gave way to mostly cloudy to cloudy skies for the night. Made a couple observations of bright targets and standards before getting shut down|
|12/08/2019||GEsquerdo||TRES||0||12.5||12.5||0||0||0||Clouds and fog all throughout with a pretty good rain storm part-way into the night. Never opened|
|09/12/2019||GEsquerdo||TRES||5||7.5||7.5||0||0||0||Clouds and fog early finally breaking a while after midnight. I gave it a little time to make sure the humidity would stay down before opening (it had tried this earlier in the night and rebounded after a short while). Clear for the time I was open but|
|12/10/2019||GEsquerdo||TRES||8.5||4||4||0||0||0||Clear early but with soft seeing. Clouds rolled in around 1:00, but thinned a few times after that allowing some observations of some brighter targets. Frustrating night with the bright moon and marginal conditions|
|12/11/2019||P Berlind||TRES||12||0||0||0||0||0||A few bands of clouds early, bright moon, seeing pretty good until windy end. Dome position accumulates errors during night and needs resets. Encountered a troop of 45 coatimundis|
|12/12/2019||P Berlind||TRES||12.5||0||0||0||0||0||Thin clouds early. Pleasant observing experience, the seeing and focus was very stable during the night. Pointing is excellent all sky|
|12/13/2019||GEsquerdo||TRES||12.5||0||0||0||0||0||Clear all night with good seeing for the first half, becoming soft in the second half. Very early on, the large RA oscillation Perry saw the other night occurred again with communication error being reported on TCSGalil. I shut down the realtime system,|
|12/14/2019||GEsquerdo||TRES||12.5||0||0||0||0||0||Soft seeing most of the night becoming poor at the end of the night. Clear until a while after midnight when clouds from the leading edge of a weak frontal system came through. I was able to mostly observe around and through these|
|12/15/2019||GEsquerdo||TRES||12||0.5||0.5||0||0||0||Odd cap cloud early in the night shut me down for 30 minutes then clear for most of the night, becoming partly cloudy to mostly cloudy to end. Soft seeing early, becoming poor late|
|12/16/2019||GEsquerdo||TRES||12.5||0||0||0||0||0||Clear all night but with generally poor seeing, improving only slightly towards the end. Otherwise a fairly productive night|
|12/18/2019||P Berlind||TRES||13||0||0||0||0||0||Obtained telescope images going through focus. Tails of 3 fronts moved across during the night with cloud bands. Seeing was pretty good at times. Ion pump holding steady|
|12/17/2019||P Berlind||TRES||0||12.5||12.5||0||0||0||High wind event. No observations|
|12/19/2019||P Berlind||TRES||13||0||0||0||0||0||Long night. Solstice. Clear, variable seeing. End of TRES run|