Observers:  Shappee, Terndrup, Humphreys, Davidson
Telescope Operator: Steve Allanson
Support Astronomer: Dave Thompson
Instrument: MODS

Observation log for 06-07 January 2013

Closed for clouds until UTC 02:07.  Then opened with light-moderate cirrus the rest of the night.


Projects Completed:
OSU_CLASH
ND_COSLLS
OSU_SN2011fe

Projects Not Completed:
ND_eclipse 2nd pass
OSU_Khan

Instrument:
MODS.

Play by play:

~02:30:
execMODS -b DualGrating g191b2b.obs

02:43:
execMODS -b BlueGrating g191b2b.obs

02:54:
acqMODS Khan7.acq
some cirus; seeing ~1.2”

Finding chart at the wrong position angle, but source

03:06:
execMODS Khan7.obs
seeing ~1.2-1.5”

03:28:
acqMODS Khan7.acq
seeing ~1.0”
light cirus

03:35:
execMODS Khan5.obs

03:48:
acqMODS Khan3.acq

~03:54
execMODS Khan3.obs
We saved the slit acq image as Khan3_acq.jpg.  We used “x” (manual placement) not “a” fitting to place the slit where the object is specified in the finding chart.  

04:15:
acqMODS eclipse_PA90.acq

04:23:
execMODS eclipse.obs
We got on target a bit early, so we will do extra exposures.  We observed this a second time with worse seeing (seeing ~1.1”-1.5”) in case slit illumination issues may have been a concern in yesterday’s data.

05:00
acqMODS j0820HA-3.5.acq

05:13:
ND_COLLIS
execMODS j0820.obs
seeing ~1.5-1.7
we will at least double the exposure times

06:01:
acqMODS macs0744.acq

06:17:
execMODS macs0744.obs
seeing 1.5-1.7”
only very lite cirrus if any

07:24:
seeing 0.9-1.2”
humidity and wind up, lets see how long we can stay open

08:05:
seeing 1.2-1.3”

08:55:
Started additional exposures on macs0744 to make up for the sub-par seeing in the first two exposures.  
seeing 0.9-1.1
however there is cirrus overhead

09:10:
seeing 1.2”1.3”
cirrus

09:56:
2 extra exposures done,
checking the wind

10:03:
Wind within limits
acqMODS feige66.acq

10:11:
execMODS -b DualGrating feige66.obs
seeing ~1.5”

10:24:
execMODS -b BlueGrating feige66.obs

10:37:
We are going to finish up on the exposures for SN2011fe.
acqMODS OSU_SN2011fe_UT10C.acq

10:49:
execMODS OSU_SN2011feC.obs
seeing 1.5”
finished exposures on SN_2011fe

11:35:
acqMODS j1605HA-4.5.acq
seeing ~1.5-1.7”
There are no other objects in the queue that are observable in the current conditions.  So we will increase the number of exposures.  There is cirrus.  

12:10:
seeing ~1.5”

12:21:
seeing 1.4”

12:53:
last exposure cut short because of cloud and twilight.