WIYN 3.5m WHIRC Observing Report for 2013/12/09

Summary:

We observed 6 supernovae and 2 standard stars. Here is a summary of observations:

Name			| z      |  B-Peak  | 20131209
2013fw  		|0.016952|20131107  | 9,9,16
iPTF13ebh 		|0.013269|20131123  | 9,9,9
PS1-13dkh 		|0.03    |20131007  | 41,25,..
LSQ13crf 		|0.06    |20131031  | 41,25,..
LSQ13cwp 		|0.067   |20131110  | 25,16,..
iPTF13dge 		|0.015854| 20130920 | 41,16,..

P525-E in JHKs at 1.1 and 1.5 airmasses.
P161-D in JHKs at 1.04 and 1.09 airmasses.

Observer: Anja Weyant 
Telescope Operator: Krissy Reetz
Conditions:
wind: 10.3 mph
Humidity: 15.2
Temperature: 10.2 C
Seeing: 0.6-1" 
Moon: 56%

Notes:

We were unable to take any images after 4am due to heavy cloud cover.

WTTM testing at beginning of the night.  Took 30 min.
Everything seems to be working fine with WTTM so we continued to use it for the night.

Number scheme got messed up when testing WTTM.  Calibration images start with "flat" and all other images that we took start with "obj". 

To observe with WTTM it is necessary to have a star brighter than r=14.5 in the field of view.  We were able to use WTTM for all SN targets although we made offsets for some of the targets to get a bright star within range.  Here is a list of offsets:

2013fw: 30" S and 30" W
iPTF13ebh: 45" W
PS1-13dkh: 30"W and 30"N. Note for this target the very bright star near the center
of the image is too bright to use in good weather but OK with some light cloud cover.

For the other SN there was a bright enough star in the field and no offsets were necessary.

When switching between using WTTM and not, the observer has to "enable" and "unenable" WTTM in the WTTM gui.  We then take an image and have to give the OA the x-y position of
the star that we will be guiding on.  This must be done relatively quickly or the guide star will drift too much.

Took ~495 images but there may be more for this night on the NOAO archive due to the WTTM testing.