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02082018

First-half night for DES

Observers

to get the names, check the shift table

  • Stephanie Hamilton (Observer 2, RM)
  • Felipe Menanteau (Observer 1)

CTIO Staff

To get the names, check the "staff calendar":* Staff calendar

  • Manuel Hernandez - Obs. Support
  • Alberto Alvarez - Operator

Almanac

forgotten how to do this? Use ephem with kentools

mjd 58158, date 20180208, Site CTIO, UT-offset 3 hr
Current local time 12:13 CLST     UT 15:13     SidTim 19:45
Event      Local-Time  Greenwich  Sidereal-Time
Sunset     20:44 CLST  23:44 UT   04:16   64 deg
Eve. -10   21:21 CLST  00:21 UT   04:54   74 deg  Zeropoint; standards
Eve. -14   21:41 CLST  00:41 UT   05:14   78 deg  Begin obstac
Eve. -18   22:02 CLST  01:02 UT   05:35   84 deg  Last chance standards
Midpoint   01:57 CLST  04:57 UT   09:30  142 deg
Moonrise   02:13 CLST  05:13 UT   09:46  146 deg
Morn -18   05:52 CLST  08:52 UT   13:25  201 deg  Begin astronomical twilight
Morn -14   06:13 CLST  09:13 UT   13:46  206 deg  End obstac; begin standards
Morn -10   06:34 CLST  09:34 UT   14:07  212 deg
Sunrise    07:11 CLST  10:11 UT   14:44  221 deg
Moon position (deg): RA 247.4, Dec -16.2 Phase: 0.436

Weather Conditions

  • at lunch: clear, few clouds around horizon
  • Forecast is to be clear

as predicted by hourly forecast

  • clouds: clear
  • humidity: 70% expected
  • temp: ~12°C expected
  • wind: light winds expected

Observing Plan and Goals for the Night

  • First half DES, second half non-DES
  • Evening standards (Yzirg)
  • Wide survey with obstac - expect gri
  • Middle-of-night standards (grizY)
  • Handover to second-half observer at 1:45 local time, because we went ~10 minutes over time last night.

forgotten how to do this? Use standards with kentools

  • 3 Evening standards
    Yzirg
UT Date = '2018/02/09 00:21'     Local time = 21:21
E4-A                  ra 09:23:44  dec -45:21:02  secz 1.7
SDSSJ0200-0000        ra 02:00:00  dec +00:00:00  secz 1.6
C26202/HST            ra 03:32:30  dec -27:46:05  secz 1.1
  • 1 midpoint standard
    grizY
UT Date = '2018/02/09 04:40'     Local time = 01:40
SDSSJ1227-0000        ra 12:27:00  dec +00:00:00  secz 1.7

When were the last SN fields observed?

forgotten how to do this? Instructions here

hex_name    seqtype    last_complete
SN-E1    short    2018-01-15 01:08:05.835460+00:00
SN-X3    long_g    2018-01-15 02:17:19.554010+00:00
SN-E2    short    2018-01-16 00:59:34.787393+00:00
SN-S2    short    2018-01-16 02:08:01.691914+00:00
SN-X3    long_z    2018-01-17 00:57:02.927041+00:00
SN-X1    short    2018-01-18 00:58:11.372821+00:00
SN-X2    short    2018-01-18 01:17:35.251354+00:00
SN-X3    long_r    2018-01-18 01:37:02.154892+00:00
SN-S1    short    2018-01-19 00:58:20.251346+00:00
SN-C3    long_z    2018-01-27 01:18:32.189609+00:00
SN-X3    long_i    2018-02-03 01:15:33.702675+00:00
SN-C3    long_r    2018-02-04 01:54:02.145570+00:00
SN-C3    long_i    2018-02-04 02:17:16.825705+00:00
SN-C3    long_g    2018-02-05 01:54:32.742289+00:00
SN-C1    short    2018-02-05 02:07:38.889291+00:00
SN-C2    short    2018-02-05 02:27:02.504540+00:00

Useful links

Nightsum | CTIO Night Report | DECam Logbook
Tololo Environmental Web Page | Detailed hourly forecast | Satellite maps