WIYN Observatory


Hand-written logsheets

Download the PDF version of the Hydra Logsheet.

Download the PDF version of the Imager Logsheet.

The Automated Log

The Autolog pulls information from your image headers to create the log. Note: The automated log only logs images written in FITS format.

To start the autolog program:

Autolog Tips

1. The images (.fits images only) are written to the log after the exposure has readout. An example log is shown below.

2. Every time an image is logged, the log page is written to a postscript file and saved in a default directory (e.g. /home/observer/autolog/ on Cork for Hydra or the IFUs). When a page is full this will then be copied to your current working directory. These files are stored in your data directory and are called autolog_page1.ps, etc.

3. Each page is printed when it is full (if this option is selected on the main autolog GUI).

4. One nice feature of this log is that you can type virtually anywhere within the log - you can edit any field or add comments wherever you like.

5. Image root names that contain a period will not show up correctly in the log (e.g. n001.0002.fits). To avoid this, make sure your image root names do not contain periods.

6. If you have a partially full log page at the end of your run or night you can still save the partial log page. Simply "Quit" the autolog program and it will be saved (you may want to print a hardcopy of that page first, just in case).

7. If you are missing any of your log pages in your working directory you may want to see if they are available in the default autolog save directory:

8. If the observer is listed as "unknown" it's because that information has not been entered in the correct place (in the MOP for Hydra, the IFUs or WHIRC).

9. Once the last image has been written to a log page you can no longer save comments to that log page. (You can, or course, write in comments and then print a hard copy of the log page, you just can't save them to the logfile.)

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Last modified: 03-Apr-2020 11:29:39 MST