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01242017

Nightly Observing Plan for MJD 57778 (starting evening of Jan 24, 2017)

Half night

Observers

  • Daniel Grün (Obs 1, RM)
  • Josh Frieman (Obs 2)

CTIO Staff

  • Manuel Hernández - Obs. Support
  • Rodrigo Hernández - Operator
  • Staff calendar

Almanac

mjd 57778, date 20170124, Site CTIO, UT-offset 3 hr
Sunset     20:53 CLST  23:53 UT   SidTim   52 deg  
Eve. -10   21:32 CLST  00:32 UT   SidTim   61 deg  Zeropoint; standards
Eve. -14   21:53 CLST  00:53 UT   SidTim   67 deg  Begin obstac
Eve. -18   22:16 CLST  01:16 UT   SidTim   72 deg  Last chance standards
Midpoint   01:55 CLST  04:55 UT   SidTim  128 deg  
Moonrise   04:59 CLST  07:59 UT   SidTim  173 deg  
Morn -18   05:35 CLST  08:35 UT   SidTim  182 deg  Begin astronomical twilight
Morn Std   05:57 CLST  08:57 UT   SidTim  188 deg  End obstac; begin standards
Morn -10   06:19 CLST  09:19 UT   SidTim  194 deg  
Sunrise    06:58 CLST  09:58 UT   SidTim  203 deg  
Moon position (deg): RA 273.8, Dec -18.2 Phase: 0.208

Weather Conditions

Observing Plan and Goals for the Night

* Standards today.

UT Date = '2017/01/22 00:38'     Local time = 21:38
SDSSJ0100-0000        ra 01:00:00  dec +00:00:00  secz 1.7
SDSSJ0200-0000        ra 02:00:00  dec +00:00:00  secz 1.4
SDSSJ0320-0000        ra 03:20:00  dec +00:00:00  secz 1.2

* Obstac: wide field
* Half Night standards (using calspec) use only 1 (highest airmass): grizY

UT Date = '2017/01/25 04:50'     Local time = 01:50
SDSSJ1048-0000        ra 10:48:00  dec +00:00:00  secz 1.4
SDSSJ0843-0000        ra 08:43:00  dec +00:00:00  secz 1.2

When were the last SN fields observed?

(See https://cdcvs.fnal.gov/redmine/projects/desops/wiki/When_were_the_SN_fields_last_observed for database query.)

hex_name    seqtype    last_complete
SN-X3    long_g    2017-01-17 01:00:04.352758+00:00
SN-S2    short    2017-01-17 01:13:13.073119+00:00
SN-S1    short    2017-01-17 01:32:37.951050+00:00
SN-C3    long_z    2017-01-17 02:06:27.103965+00:00
SN-C2    short    2017-01-17 03:33:12.413512+00:00
SN-X3    long_z    2017-01-18 00:57:06.761183+00:00
SN-C3    long_r    2017-01-18 02:05:15.138597+00:00
SN-C3    long_i    2017-01-18 02:28:19.432806+00:00
SN-E1    short    2017-01-19 00:57:00.850348+00:00
SN-X3    long_i    2017-01-19 01:17:53.593385+00:00
SN-X2    short    2017-01-19 01:51:40.713325+00:00
SN-E2    short    2017-01-20 01:06:48.162738+00:00
SN-X1    short    2017-01-20 01:27:35.887735+00:00
SN-X3    long_r    2017-01-20 01:46:55.771464+00:00
SN-C3    long_g    2017-01-22 03:32:30.777433+00:00
SN-C1    short    2017-01-22 03:45:19.317402+00:00

Notes from 4pm meeting

Run Manager's Meeting January 24, 2017
--------------------------------------
HTD, David F., Bobby B., Rick K., Eric N., Doug T.,
Eric M, Josh, Manuel, Daniel

Camera & Telescope
------------------
Observers see there is a SISPI.
Camera is fine. Work going on in the dome.
Flats at 5:30.

Last Night
----------
http://des-ops.fnal.gov:8080/nightsum/nightsum-2017-01-23/nightsum.html
Never opened.

DECal fine scan of g-band. However one or more of the lamps seems to be poorly aligned
and the screen is not uniformly illuminated.

DESDM & DQ
-----------
No problems processing or downloading stuff in past few nights.

Forecast
--------
Partly cloudy now. Prediction is for it to clear up.
Deadman 7: C2, C3z, S1, S2, X3g
Deadman 6: C3r, C3i, X3z

Expect the SN fields on deadman 7.
Then WF tiling 6 mixed, then dark
AOB
---

SN discussion
SN Ramp Down Plan SN Group (Request)
1) Drop E fields after one more epoch (previous epoch was Jan 18, 19)
2) Take S and X fields off deadman on Feb 1 (may still be observed with seeing trigger)
3) Raise C field deadman to 9 days on Feb 1

Comments on request:
Recollection is airmass limit must be 2 to get the C-fields in mid-Feb.
Check in 2/9 to 2/14 break whether to enable C-fields any more on deadman.
Eric N is running simulations
Eric N has a separate deep and shallow field global deadman.

Plan for now:
run for now with airmass limits at 1.7
Json scripts to control when SN deadman occur.

Standard Stars:
All SDSS SS fields for next few nights.

Wildlife report: lizard.

WoD: argh.