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01032017

Nightly Observing Plan for MJD 57757 (starting evening of Jan 3, 2017)

Half night

Observers

  • Sahar Allam (Obs 1)
  • Douglas Tucker (Obs 2, RM)

CTIO Staff

  • Hernán Tirado - Obs. Support
  • Alberto Alvarez - Operator
  • Staff calendar

Almanac

mjd 57757, date 20170103, Site CTIO, UT-offset 3 hr
Current local time 15:37 CLST     UT 18:37     SidTim 20:49
Sunset     20:56 CLST  23:56 UT   SidTim   32 deg
Eve. -10   21:37 CLST  00:37 UT   SidTim   42 deg  Zeropoint; standards
Eve. -14   22:00 CLST  01:00 UT   SidTim   48 deg  Begin obstac
Eve. -18   22:24 CLST  01:24 UT   SidTim   54 deg  Last chance standards
Moonset    00:32 CLST  03:32 UT   SidTim   86 deg

Start standards at 04:41 UT

Midpoint   01:48 CLST  04:48 UT   SidTim  105 deg  TURNOVER
Morn -18   05:12 CLST  08:12 UT   SidTim  156 deg  Begin astronomical twilight
Morn Std   05:36 CLST  08:36 UT   SidTim  162 deg  End obstac; begin standards
Morn -10   05:59 CLST  08:59 UT   SidTim  168 deg
Sunrise    06:39 CLST  09:39 UT   SidTim  178 deg
Moon position (deg): RA 353.9, Dec -3.6 Phase: 0.370

Weather Conditions

Observing Plan and Goals for the Night

  • Evening standards (using calspec): Yzrig
UT Date = '2017/01/04 00:37'     Local time = 21:37
SDSSJ0100-0000        ra 01:00:00  dec +00:00:00  secz 1.3
WD0308-565_CCD_52     ra 03:09:48  dec -56:18:49  secz 1.1
SDSSJ0320-0000        ra 03:20:00  dec +00:00:00  secz 1.2
  • Obstac:
    • Wide-field: Try to finish Tiling 6! (Just a few exposures needed in z and Y.)
    • SN: X3z is on deadman. X3r,i, C3z, E1, E2 are on seeing.
  • Half Night standards (using calspec) use only 1 (highest airmass): grizY
UT Date = '2017/01/04 04:48'     Local time = 01:48
SDSSJ0320-0000        ra 03:20:00  dec +00:00:00  secz 2.0
SDSSJ0958-0010        ra 09:58:00  dec -00:10:00  secz 1.6
MaxVis                ra 06:30:00  dec -58:45:00  secz 1.1

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_z    2016-12-28 01:50:58.831537+00:00
SN-E1    short    2016-12-29 01:23:14.323130+00:00
SN-C3    long_z    2016-12-29 02:18:43.917352+00:00
SN-E2    short    2016-12-30 01:25:03.938219+00:00
SN-X3    long_r    2016-12-30 02:04:10.767721+00:00
SN-X3    long_i    2016-12-30 02:44:01.809491+00:00
SN-X1    short    2017-01-03 01:13:25.617552+00:00
SN-X2    short    2017-01-03 01:32:48.579368+00:00
SN-S2    short    2017-01-03 01:52:21.713952+00:00
SN-X3    long_g    2017-01-03 02:11:54.862339+00:00
SN-S1    short    2017-01-03 02:25:06.638578+00:00
SN-C3    long_g    2017-01-03 02:47:17.842371+00:00
SN-C1    short    2017-01-03 03:02:37.573628+00:00
SN-C3    long_r    2017-01-03 03:21:58.724963+00:00
SN-C3    long_i    2017-01-03 03:45:03.581351+00:00
SN-C2    short    2017-01-03 04:24:32.965397+00:00

Notes from 4pm meeting

  • Don't forget: at middle-of-the-night switchover, completing a SN field sequence has priority over observing the standard fields (a SN sequence is "all-or-nothing": if a complete sequence is not done, the whole sequence needs to be done over again).
  • We are very close to getting Tiling 6 done. ObsTac has been adjusted to make finishing Tiling 6 the highest priority for the wide-field exposures. If Tiling 6 is not done tonight, we might need to do a special json file tomorrow night to finish it off tomorrow night.
  • Resolutions: better Words-of-the-Day this year.