10182018¶
Nightly Observing Plan for MJD 58410 (starting evening of October 18, 2018)¶
DES has the full night.
Observers¶
- Andres Plazas (observer 2, Run Manager)
- Daniel Gruen (observer 1)
CTIO Staff¶
- Manuel Hernandez
- Alberto Alvarez
- Staff calendar
Almanac¶
from kentools ephem
mjd 58410, date 20181018, Site CTIO, UT-offset 3 hr Current local time 15:11 CLST UT 18:11 SidTim 15:17 Event Local-Time Greenwich Sidereal-Time Sunset 20:02 CLST 23:02 UT 20:08 302 deg Eve. -10 20:38 CLST 23:38 UT 20:45 311 deg Zeropoint; standards Eve. -14 20:58 CLST 23:58 UT 21:04 316 deg Begin obstac Eve. -18 21:18 CLST 00:18 UT 21:24 321 deg Last chance standards Midpoint 01:28 CLST 04:28 UT 01:34 24 deg Moonset 04:14 CLST 07:14 UT 04:21 65 deg Morn -18 05:38 CLST 08:38 UT 05:44 86 deg Begin astronomical twilight Morn -14 05:57 CLST 08:57 UT 06:04 91 deg End obstac; begin standards Morn -10 06:17 CLST 09:17 UT 06:24 96 deg Sunrise 06:53 CLST 09:53 UT 07:00 105 deg Moon position (deg): RA 324.3, Dec -15.4 Phase: 0.662
Weather Conditions¶
- clear, calm
- Tonight: clear, calm, humidity: 58%-31%
- Detailed hourly forecast | Satellite maps
Observing Plan and Goals for the Night¶
- DES full night
- Evening standards
UT Date = '2018/10/18 23:38' Local time = 20:38 SDSSJ0000-0000 ra 00:00:00 dec +00:00:00 secz 1.8 SDSSJ2300-0000 ra 23:00:00 dec +00:00:00 secz 1.4 E8-A ra 20:07:22 dec -44:37:01 secz 1.0
- Obstac as long as seeing is < 1.6 arcsec
- If bad seeing (1.6 arcsec < seeing < 2.0) and clear: Photosweeps
- Otherwise if bad seeing (seeing > 1.6 arcsec) and not clear, or very bad seeing (seeing > 2.0 arcsec): Narrowband
- Morning standards
UT Date = '2018/10/19 8:57' Local time = 05:57 SDSSJ0933-0005 ra 09:33:00 dec -00:05:00 secz 1.9 SDSSJ0320-0000 ra 03:20:00 dec +00:00:00 secz 1.5 MaxVis
Useful links¶
Nightsum | CTIO Night Report | DECam Logbook
Tololo Environmental Web Page | Detailed hourly forecast | Satellite maps
Notes from 4PM Meeting¶
Priorities (highest to lowest)¶
WF survey with ObsTac¶
Photosweeps (seeing < 2.0)¶
- If RM is finished & If "Bad Seeing" and photometric and not worse than 2.0" => do Photosweep.
Do not bother with this program if clouds are visible on Rasicam or if seeing is highly variable, for
the varying aperture corrections make it difficult to get to mmag accuracy.
One needs to run a python script at CTIO to generate the jsons.
having done that THE Photosweep scripts can be found in
/usr/remote/user/DECamObserver/ExposureScripts/DES_scripts
with names like: photosweep20180914-2200Z.json
Select the one with timestamp closest to the next top of hour, now in UT (we got the z added).
Do not bother with this is there's < 30 minutes left in the night.
A script probably takes an hour.
Narrow Band¶
- If "Bad Seeing" and not photometric, then do narrowband. Description:
https://cdcvs.fnal.gov/redmine/projects/desops/wiki/Narrowband_SN_imaging_program
Narrowband scripts are in the same directory as photosweep.
Names like SN-C3X-N964.json
They are on the SN fields, selection criteria are given on the above wiki page.
These are expected to be about an hour long. If the clouds are only
moderate, we could do these.
Put in the DQ as normal.
Obstac if seeing isn't bad.