01092019¶

Nightly Observing Plan for MJD 58493 (starting the evening of Jan 9, 2019)¶

Observers¶

• Klaus Honscheid (Observer 1)
• Brenna Flaugher (Observer 2)
• Marcelle Soares-Santos (Run Manager)
• Tom Diehl (Run Manager)

CTIO Staff¶

• Manuel Hernandez, Claudio Aguilera
• Staff calendar

Almanac¶

prompt> ephem
mjd 58493, date 20190109, Site CTIO, UT-offset 3 hr
Current local time 19:10 CLST     UT 22:10     SidTim 00:43
Event      Local-Time  Greenwich  Sidereal-Time
Sunset     20:57 CLST  23:57 UT   02:30   38 deg  
Eve. -10   21:37 CLST  00:37 UT   03:10   48 deg  Zeropoint; standards
Eve. -14   21:59 CLST  00:59 UT   03:33   53 deg  Begin obstac
Eve. -18   22:23 CLST  01:23 UT   03:57   59 deg  Last chance standards
Moonset    23:21 CLST  02:21 UT   04:55   74 deg  
Midpoint   01:50 CLST  04:50 UT   07:24  111 deg  
Morn -18   05:18 CLST  08:18 UT   10:51  163 deg  Begin astronomical twilight
Morn -14   05:41 CLST  08:41 UT   11:15  169 deg  End obstac; begin standards
Morn -10   06:04 CLST  09:04 UT   11:37  174 deg  
Sunrise    06:44 CLST  09:44 UT   12:18  184 deg  
Moon position (deg): RA 337.0, Dec -12.3 Phase: 0.241

Weather Conditions¶

• 3pm local time, clouds above the Andes, wind speed 4 mph, humidity 50%
• Detailed hourly forecast | Satellite maps
• Tololo Env page

Observing Plan¶

• DES Half night

• Evening standards

prompt> standards 00:37
UT Date = '2019/01/10 00:37'     Local time = 21:37
SDSSJ0000-0000        ra 00:00:00  dec +00:00:00  secz 1.7
SDSSJ0100-0000        ra 01:00:00  dec +00:00:00  secz 1.4
SDSSJ0320-0000        ra 03:20:00  dec +00:00:00  secz 1.2

• Science exposures

• Alhambra Deep 2 until airmass 1.5
• Southern sliver (obstac) until 3:00UT
• Redo script until 4:00 UT
• Special script

• Scripts are located at /usr/remote/user/DECamObserver/ExposureScripts/DES_scripts/

• Midpoint standards

prompt> standards 04:50
UT Date = '2019/01/10 04:50'     Local time = 01:50
SDSSJ1048-0000        ra 10:48:00  dec +00:00:00  secz 1.8
SDSSJ0958-0010        ra 09:58:00  dec -00:10:00  secz 1.5
SDSSJ0843-0000        ra 08:43:00  dec +00:00:00  secz 1.2

Useful links¶

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

Other notes¶