MDM Trouble Report for 2006 Dec 14 Telescope: 2.4m Observer(s): Pereira/McGreer (Columbia University) Instrument: 8K Problem(s) Encountered: There is wavy pattern noise across the 8K chips. In the bias frames, this noise is 5X greater than the rms in the biases from yesterday, and in the B band it increased the background noise by a factor of 4. We tried cycling the power for the chips twice, with no effect. At the end of the night, chip #3 stopped functioning, reporting zeros across the image while taking flats. ------------------------------ Submitted on 2006 Dec 15 [6:52:27]