Nightly Observing Plan for MJD 58410 (starting evening of October 19, 2018)¶
DES has the full night.
- Andres Plazas (observer 1)
- Daniel Gruen (observer 2, Run Manager)
- Manuel Hernandez
- Alberto Alvarez
- Staff calendar
from kentools ephem
mjd 58411, date 20181019, Site CTIO, UT-offset 3 hr Current local time 15:31 CLST UT 18:31 SidTim 15:41 Event Local-Time Greenwich Sidereal-Time Sunset 20:03 CLST 23:03 UT 20:13 303 deg Eve. -10 20:39 CLST 23:39 UT 20:49 312 deg Zeropoint; standards Eve. -14 20:59 CLST 23:59 UT 21:09 317 deg Begin obstac Eve. -18 21:19 CLST 00:19 UT 21:29 322 deg Last chance standards Midpoint 01:27 CLST 04:27 UT 01:38 24 deg Moonset 04:50 CLST 07:50 UT 05:01 75 deg Morn -18 05:36 CLST 08:36 UT 05:47 87 deg Begin astronomical twilight Morn -14 05:56 CLST 08:56 UT 06:06 92 deg End obstac; begin standards Morn -10 06:16 CLST 09:16 UT 06:26 96 deg Sunrise 06:52 CLST 09:52 UT 07:03 106 deg Moon position (deg): RA 336.3, Dec -12.2 Phase: 0.724
- clear, calm
- Tonight: clear except for some clouds around local midnight, calm, humidity: 58%-40%
- Detailed hourly forecast | Satellite maps
Observing Plan and Goals for the Night¶
- DES full night
- Evening standards
UT Date = '2018/10/19 23:39' Local time = 20:39 SDSSJ0000-0000 ra 00:00:00 dec +00:00:00 secz 1.7 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 = '2018/10/20 8:56' Local time = 05:56 SDSSJ0933-0005 ra 09:33:00 dec -00:05:00 secz 1.8 SDSSJ0320-0000 ra 03:20:00 dec +00:00:00 secz 1.6 MaxVis ra 06:30:00 dec -58:45:00 secz 1.1
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
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.
- If "Bad Seeing" and not photometric, then do narrowband. Description:
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.