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01192015

Nightly Observing Plan for MJD 57042 (starting evening of Jan 19, 2015)

DES has the first half of the night. Switchover occurs at the midpoint of the night, which is at 01:54 CLST (04:54UT).

Observers

  • Elisabeth Krause (observer 1)
  • David Gerdes (run manager/observer 2)

CTIO Staff

  • Manuel Hernandez
  • Hernan Tirado

Almanac

mjd 57042, date 20150119, Site CTIO, UT-offset 3 hr
Current local time 11:25 CLST     UT 14:25     SidTim 17:38
Sunset     20:55 CLST  23:55 UT   SidTim   47 deg  
Eve. -10   21:34 CLST  00:34 UT   SidTim   57 deg  Zeropoint; standards
Eve. -14   21:56 CLST  00:56 UT   SidTim   62 deg  Begin obstac
Eve. -18   22:19 CLST  01:19 UT   SidTim   68 deg  Last chance standards
Midpoint   01:54 CLST  04:54 UT   SidTim  122 deg  
Morn -18   05:29 CLST  08:29 UT   SidTim  176 deg  Begin astronomical twilight
Morn Std   05:51 CLST  08:51 UT   SidTim  181 deg  End obstac; begin standards
Morn -10   06:13 CLST  09:13 UT   SidTim  186 deg  
Sunrise    06:53 CLST  09:53 UT   SidTim  196 deg  
Moon position (deg): RA 296.1, Dec -15.6 Phase: 0.054

Weather Conditions

Clear and hot. Moderate wind (10mph).

Observing Plan and Goals for the Night

  • standards
    UT Date = '2015/01/19 00:34'     Local time = 21:34
SDSSJ0000-0000        ra 00:00:00  dec +00:00:00  secz 2.1
SDSSJ0100-0000        ra 01:00:00  dec +00:00:00  secz 1.5
SDSSJ0320-0000        ra 03:20:00  dec +00:00:00  secz 1.2
  • Weekly defocus
  • Eric's script for equatorial fields for first ~half hour, provided t_eff>0.3 for first few i,z-band exposures.
  • Obstac, expect wide survey all shift if seeing permits
  • middle-of-night standard, then handover to community team