Dark Energy Survey » DES Operations

h1. 12282018

h2. Nightly Observing Plan for MJD 58481 (starting the evening of Dec 28, 2018)

h3. Observers

* Alexandra Amon (Observer 1)

* Antonino Troja (Observer 2)

* Ting Li (Run Manager)

h3. CTIO Staff

* Manuel Hernandez, Alberto Alvarez

* "Staff calendar":http://www.ctio.noao.edu/cgi-bin/Calcium38.pl?Op=ShowIt&CalendarName=4m_Observing_Schedule

h3. Almanac

from kentools ephem

<pre>

mjd 58481, date 20181228, Site CTIO, UT-offset 3 hr

Current local time 15:41 CLST     UT 18:41     SidTim 20:28

Event      Local-Time  Greenwich  Sidereal-Time

Sunset     20:55 CLST  23:55 UT   01:41   25 deg

Eve. -10   21:36 CLST  00:36 UT   02:22   36 deg  Zeropoint; standards

Eve. -14   21:59 CLST  00:59 UT   02:45   41 deg  Begin obstac

Eve. -18   22:23 CLST  01:23 UT   03:09   47 deg  Last chance standards

Midpoint   01:45 CLST  04:45 UT   06:31   98 deg

Moonrise   01:45 CLST  04:45 UT   06:31   98 deg

Morn -18   05:07 CLST  08:07 UT   09:53  148 deg  Begin astronomical twilight

Morn -14   05:31 CLST  08:31 UT   10:17  154 deg  End obstac; begin standards

Morn -10   05:54 CLST  08:54 UT   10:40  160 deg

Sunrise    06:35 CLST  09:35 UT   11:21  170 deg

Moon position (deg): RA 187.2, Dec 3.1 Phase: 0.521

</pre>

h3. Weather Conditions

* 4pm local time, some thin layer clouds in the North with fast moving, wind speed 9.5 mph, humidity 41%

* "Detailed hourly forecast":http://www.yr.no/place/Chile/Coquimbo/Observatorio_Astron%C3%B3mico_Cerro_Tololo/hour_by_hour_detailed.html | "Satellite maps":http://139.229.115.231/web/world_sat.php

h3. Observing Plan

* DES Half night

* Evening standards

<pre>

UT Date = '2018/12/29 00:36'     Local time = 21:36

SDSSJ2300-0000        ra 23:00:00  dec +00:00:00  secz 1.8

SDSSJ0000-0000        ra 00:00:00  dec +00:00:00  secz 1.4

SDSSJ0200-0000        ra 02:00:00  dec +00:00:00  secz 1.2

</pre>

* run obstac

* one last g-band exposure left, take at 01:23 UT.

** locate at /usr/remote/user/DECamObserver/ExposureScripts/DES_scripts/last.json

* teff < 0.3 and if seeing improves then do last g-band exposure again 02:10 UT 

* at 2:15 UT, load these scripts:

** MACSJ0416_g_1.json

** MACSJ0416_u_1.json

** MACSJ0416_r_2.json

** scripts are located at /usr/remote/user/DECamObserver/ExposureScripts/DES_script/

* run obstac

* One Midpoint standards

<pre>

UT Date = '2018/12/29 04:41'     Local time = 01:41

MaxVis                ra 06:30:00  dec -58:45:00  secz 1.1

</pre>

h3. Useful links

"Nightsum":http://des-ops.fnal.gov:8080/nightsum/ | "CTIO Night Report":http://www.ctio.noao.edu/noao/node/add/night-report | "DECam Logbook":http://system1.ctio.noao.edu:8080/ECL/decam/E/index

"Tololo Environmental Web Page":http://139.229.115.231/web/tololo_frame.html | "Detailed hourly forecast":http://www.yr.no/place/Chile/Coquimbo/Observatorio_Astron%C3%B3mico_Cerro_Tololo/hour_by_hour_detailed.html | "Satellite maps":http://139.229.115.231/web/world_sat.php

h2. Notes from 4PM Meeting