MDM Trouble Report for 2011 Sep 20 Telescope: 2.4m Observer(s): Erika Hamden (Columbia) Instrument: CCDS Problem(s) Encountered: The grating (150 g/mm), order 1, isn't moving to the correct central wavelength. I requested 5400, but had to move it to 7500 to get close to the same spectra as yesterday. I think once I did this, the data should be ok, but it would reassure me if the grating could be realigned to accurately move to the wavelength requested. Thanks! ------------------------------ Submitted on 2011 Sep 21 [5:30:00] NOTE: This trouble report replaces the previous report for 2011 Sep 20