Nightly Observing Plan for MJD 56627 (starting evening of Nov 30, 2013)¶
|Observer 1||Observer 2||Run Manager||SISPI Expert on Call|
|Rutu Das||Lyndsay Old||Kevin Reil|
|ext. 521||ext. 516||ext. 513 or 630 338 9267|
CTIO staff (Telescope Operators)¶
|Day Support||Night Assistant|
|Hernan Tirado, Javier Rojas, Humbert Orrego, Marco Bonati||Claudio Aguilera|
DECam Configuration and Setup¶
|SISPI Configuration File||DES.ini|
|Image Processing (Calibration)||NCSA|
|Image Processing (First Cut)||NCSA|
mjd 56627, date 20131130, Site CTIO, UT-offset 3 hr
Current local time 15:33 CLST UT 18:33 SidTim 18:30
Sunset 20:38 CLST 23:38 UT SidTim 354 deg
Eve. -10 21:18 CLST 00:18 UT SidTim 4 deg Zeropoint; standards
Eve. -14 21:40 CLST 00:40 UT SidTim 9 deg Begin obstac
Eve. -18 22:04 CLST 01:04 UT SidTim 15 deg Last chance standards
Midpoint 01:32 CLST 04:32 UT SidTim 67 deg
Morn -18 05:00 CLST 08:00 UT SidTim 119 deg Begin astronomical twilight
Moonrise 05:22 CLST 08:22 UT SidTim 125 deg
Morn Std 05:23 CLST 08:23 UT SidTim 125 deg End obstac; begin standards
Morn -10 05:46 CLST 08:46 UT SidTim 131 deg
Sunrise 06:26 CLST 09:26 UT SidTim 141 deg
Moon position (deg): RA 222.4, Dec -14.9 Phase: 0.158
Clear at 03:30 CLST
Observing Plan and Goals for the Night¶
- Afternoon calibrations script to use: prenight_calibration.json
- Start of night standards (preceed with zeros script).
- Nightly out of focus image. script to use: defocus_nightly.json (right after last standard, no break)
- End of night standards.
- End of night calibrations. if start of night calibrations good use: postnight_calibration.json, otherwise use postnight_zeros_flats.json
Start of Night Standards MANUAL SLEW TO THESE FIELDS Wind screen down.
UT Date = '2013/12/01 00:18' Local time = 21:18
SDSSJ0320-0000 ra 03:20:00 dec +00:00:00 secz 1.7 script to use: DES_std_sdssj0320_Yzirg
SDSSJ2140-0000 ra 21:40:00 dec +00:00:00 secz 1.5 script to use: DES_std_sdssj2140_Yzirg
SDSSJ0000-0000 ra 00:00:00 dec +00:00:00 secz 1.2 script to use: DES_std_sdssj0000_Yzirg
End of Night Standards MANUAL SLEW TO THESE FIELDS Check Wind screen down.
UT Date = '2013/12/01 08:23' Local time = 05:23
SDSSJ1048-0000 ra 10:48:00 dec +00:00:00 secz 1.4 script to use: DES_std_sdssj1048_grizY
SDSSJ0843-0000 ra 08:43:00 dec +00:00:00 secz 1.2 script to use: DES_std_sdssj0843_grizY
Notes from 4pm Meeting¶
Agenda: Lost clocks last night. Also lost S30. Data taking called off by run manager. Loose cables found today. As of 3:30 all sensors and backplanes look fine in bias images (except S30/N30).
Run Manager's Meeting 11/30/2013
Alistair, Kevin, Klaus, Tom, Marco, Eric
Moving around for CCD tests.
Night before last, backplane 1 had a lot of noise. This had happened
before several times. Sol'n had been to Power Cycle (PC) the crate but that no longer
worked. Decided to take data with noisy (65 cts RMS) on bkpln 1. This really
is some nasty high frequency noise. Images after 258504 onwards
is OK and maybe a few before that.
Yesterday best guess was the Power Supply. Changed it. That didn't help.
JE -> MB suggested switching backplane that is master (origin of clocks).
No time for calib or standards.
1st image didn't deliver. Many backplanes missing. None of the
non master backplanes had clocks. (BKPLN 1 was master). PC didn't
help. Switched to BKPLN 3 as master - OK except noise on BKPLN 1
but S30 showed up dead on one side. S30 is on backplane 3.
Shift was sent to bed.
Javier looked at synch cables and found 1 loose (1 --> 3). It must
have come completely loose yesterday afternoon. Several images w/
bckpln 1 as master showed no noise. Even with backplane 3 as master.
Now they are moving the telescope around to see if the noise comes
back. It could be the loose synch cable was the root of the problems.
Right now backplane 3 is the master.
S30 is a different story. They are still looking at it. One of the
clocks is at the wrong value (-4.5V instead of -12V). Voltage was fine at
6 PM yesterday but NG after dinner. There are some ideas for what might be
wrong. The tests involve testing the particular video board on the
bench. This is to be planned for next week. Also put off checking
if the particular bias (Vreset) behaves resistively. Juan and
Marco are making a careful plan.
Marco says Juan E. notes telemetry shows a change in electronics
Temp at the time of the power cycles.
If the noise comes back plan is to goto backplane 1 as master.
We are waiting to hear about the DQ on the recent data. This
maybe more complicated than the standard DQ tests can handle.
Might be we are into partial focal plane images. I don't know if
DESDM can handle that for a subset of images during a night.
Plan for Tonight
Weather looks fantastic. Likely to be SN deadman observing.
PTC tomorrow PROPID 2013a-9999.
Need a report on system 1.
Hexapod is working. Arm #6 is being controlled on the motor encoder.
ADS guys think it's not the incremental encoder that is bad.
Problem is likely to be one of the connections someplace. At some
suitable time there'll be some more tests.
We are now using the spare encoder distribution box, so that's not the
Kevin found 8 RTDs on the camera ready to deploy on the cage.
Mike Warner is getting ready to deploy the accelerometer in a few weeks.
3D anemometer is in transit to FNAL from OSU and it won't slow down