MDM Observatory 1.3m Telescope Observing Report for 2025 Jan 31 Observer(s): Changseok, Donghoon Institution(s): SNU Instrument: Templeton Worked for 6 hours (off and on through the night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing ~1.5 arcsec, Clear, Winds Calm Mid: Overcast, Winds Calm End: Cirrus, Winds Calm Observing Summary: Dome closed 22:00~04:00 due to clouds. Guider focus issue occurred since ~19:30. Exposure proceeds without guiding. Fortunately, when we split exposure time in each 90 seconds (max ~180 sec), tracking and images look fine. ------------------------------ Submitted on 2025 Feb 1 [6:55:58]