MDM Trouble Report for 2017 May 04 Telescope: 2.4m Observer(s): Stephan Frank (Ohio State) Instrument: OSMOSB4k Problem(s) Encountered: Despite the fact that I had not even closed the window from which I had successful run 'obsctrtask' yesterday without any problems, said program decided to not cooperate today. Closing the current terminal, and restarting the program in various other directories did not help, neither did the transfer of the .par as suggested the online manual. In the end, I resorted to drive the objects onto the slit by hand and applying some translational and rotational transformations. Not ideal, but at least do-able in a reasonable amount of time -- hence, at most I lost maybe 20min in total. Below is the detailed error message when the program crashed : Task osctrtask is running... Acquisition image number (0:100000) (68): Slit image number (0:100000) (65): Exception in Tkinter callback Traceback (most recent call last): File /usr/custom/Anaconda-2.1.0/lib/python2.7/lib-tk/Tkinter.py , line 1486, in __call__ return self.func(*args) File /usr/custom/Anaconda-2.1.0/lib/python2.7/site-packages/stsci/tools/editpar.py , line 1245, in execute self.runTask() File /usr/custom/Anaconda-2.1.0/lib/python2.7/site-packages/stsci/tools/editpar.py , line 1754, in runTask self._taskParsObj.run(mode='h', _save=1) File /usr/custom/Anaconda-2.1.0/lib/python2.7/site-packages/pyraf/iraftask.py , line 359, in run self._run(redirKW, specialKW) File /usr/custom/Anaconda-2.1.0/lib/python2.7/site-packages/pyraf/iraftask.py , line 1202, in _run self._pyFunction(*pl) TypeError: osctrtask() takes exactly 19 arguments (18 given) ------------------------------ Submitted on 2017 May 5 [4:59:17]