09092018¶
Nightly Observing Plan for MJD 58371 (starting evening of September 9, 2018)¶
DES has the second half of the night.
Observers¶
- Taylor Hutchison (observer 1)
- Jen Marshall/Travis Prochaska (observer 2)
- Steve Kent (Run Manager)
CTIO Staff¶
- Manuel Hernandez - Obs. Support
- Alberto Alvarez - operator
- Staff calendar
Almanac¶
mjd 58371, date 20180909, Site CTIO, UT-offset 3 hr Current local time 04:56 CLST UT 07:56 SidTim 02:29 Event Local-Time Greenwich Sidereal-Time Sunset 19:39 CLST 22:39 UT 17:12 258 deg Eve. -10 20:14 CLST 23:14 UT 17:46 266 deg Zeropoint; standards Eve. -14 20:32 CLST 23:32 UT 18:05 271 deg Begin obstac Eve. -18 20:51 CLST 23:51 UT 18:24 276 deg Last chance standards Midpoint 01:40 CLST 04:40 UT 23:12 348 deg Morn -18 06:29 CLST 09:29 UT 04:01 60 deg Begin astronomical twilight Morn -14 06:46 CLST 09:46 UT 04:18 64 deg End obstac; begin standards Morn -10 07:06 CLST 10:06 UT 04:38 70 deg Sunrise 07:41 CLST 10:41 UT 05:13 78 deg Moon position (deg): RA 175.5, Dec 6.5 Phase: 0.021
Weather Conditions¶
- Clear at sunset with a few clouds on the southern horizon.
- Detailed hourly forecast | Satellite maps
Observing Plan and Goals for the Night¶
- DES second half night: 01:40 CLT to 07:42 CLT
- Standards
One standard for Middle-of-Night Switchover UT Date = '2018/09/10 4:40' Local time = 01:40 C26202/HST ra 03:32:30 dec -27:46:05 secz 1.8
- Obstac as long as seeing is < 1.6 arcsec
- If bad seeing (>1.6 arcsec): reverberation mapping scripts (10 json files), then go back to obstac
- Morning standards (if clear) [grizY ordered scripts]:
Standards for Morning Twilight UT Date = '2018/09/10 09:46' Local time = 06:46 SDSSJ0100-0000 ra 01:00:00 dec +00:00:00 secz 1.8 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
Useful links¶
Nightsum | CTIO Night Report | DECam Logbook
Tololo Environmental Web Page | Detailed hourly forecast | Satellite maps