MDM Trouble Report for 2019 May 13 Telescope: 1.3m Observer(s): Stephanie Hamilton (University of Michigan) Instrument: 4k imager Problem(s) Encountered: We are still encountering issues with saving the fits files. The data seems to read out fine, but then the system freezes while writing to file. The only solution has been to reboot from the Raritan keyboard in the computer room, and then reinitialize Caliban and restart prospero. The previous exposure is then lost. I have no idea if there is any substance to my hypothesis (I've only consciously noticed it a couple times, while this issue has happened several times), but it may have something to do with changing coordinates in JSkyCalc (and/or starting a slew?) before the readout has completed. I am not sure though. This issue has caused us to lose several calibration files in addition to some science exposures. ------------------------------ Submitted on 2019 May 15 [2:06:37]