MDM Observatory 2.4m Telescope Observer's Report for 2007 Apr 08 Observer(s): Birgit Otte, Jun Ji Institution(s): University of Michigan Instrument: Templeton Worked for 6 hours (last half of the night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: High Humidity from 8pm until 1am. Beg: Patchy Clouds, Winds Light & Variable Mid: Fog/Low Clouds, Winds Light & Variable End: Cirrus, Winds Light & Variable Observing Summary: We were able to take the sky flat and calibration frames for 1 hour after the sunset until the humility got too high,96%(you can even see the light beam in the air). We closed the dome for a few hours until 1am,when the humility dropped below 85%. Then we observed till 6am. Thin clouds were there most of the time. And we finally took several nice sky flats before the sun rise. ------------------------------ Submitted on 2007 Apr 9 [7:02:07]