Troubleshooting guide

should have ~5 GB of space. However, note that the image acquistion scripts will complain on each
and every image if the disk space is is ≥ 93% full, and will refuse to take any more data if the disk is ≥
97% full.
Start the autocopy script. After the image is created on flamingos1a a file with the suffix unlock will
be created. The autocopy script monitors the night directory, and when an unlock file appears it copies
the corresponding image to nutmeg and deletes the unlock file. To start the script:
4mguest@flmn-4m-1a{1} Start.autocopy.4m.nutmeg.sh
An xterm should pop up, with a summary of the above instructions:
--------------------- STARTUP INSTRUCTIONS ---------------------
1) Create the night's directory on flamingos1a in /data/4mguest
2) Create a directory with the same name on nutmeg, in
/net/nutmeg/md4/4meter/Flamingos
3) chmod a+w the directory created on nutmeg
4) Enter the directory name (not the full path) at the prompt
-------------------- ENDING INSTRUCTIONS ----------------------
After the final image has copied to
nutmeg, ctrl-c or close the window.
---------------------------------------------------------------
Enter tonight's directory name:
Make sure you enter only the directory name (e.g. 2003sep15ut), and not the entire path.
4. Set up header information, data location, file names. Once you have created a data directory, you need to
tell FLAMINGOS where it is. Run set.filename.pl. This will prompt you to change the parameters
FILEBASE and ORIG_DIR.
FILEBASE sets the root prefix for the image name; all image names will be of the format
filebase.####.fits, where #### ranges from 0001 to 9999; the image number is incremented
automatically.
ORIG_DIR sets the absolute path to the night's data directory. The entry here must have a trailing
slash, e.g. /data/4mguest/2003Mar31/.
5. Verify Position Angle. The value of the parameter ROT_PA in config.mos.dither.pl should match the
actual telescope position angle, which is shown near the bottom of the telescope status screen; the telescope
operator can show you which number to read. The valid rotator range is -0.6º to +180.0º.
B. Startup on the Sky
Several of these steps refer to commands that are described in more detail in section § IV. Imaging with
FLAMINGOS (e.g. for details on how to configure the wheels and how to set the exposure time).
1. Telescope operator's typical nightly tasks:
FLAMINGOS@4-m, Ver. 2.34, 2006 Apr 04 Page 12 of 44