Things that can be fixed

• although the user interface is strict in the sense that named keywords must be matched exactly and unknown keywords are considered a fatal error, values are also accepted in order if no keyword supplied. This is a side effect of the NEMO  user interface that was used to build the top layer.
• keep a real date so that you can check scripts in the future or past. Useful for planets of course.  Currently only the LST is advanced, not the UT clock. This makes for an interesting floating observatory on an otherwise fixed-in-space earth. A bit more thought needs to go into this conversion, because with a little effort, this checker can then also be used to schedule observations at other observatories. 
• Although designed to work on any  SUN workstation, at Hat Creek we currently will not allow you to run the checker on hat.berkeley.edu, please run it on bima2. Although the risk is minimal, running the checker in /tmp on hat could interfere with running observe programs since the COMMON in hat.berkeley.edu:/tmp/hatcomsol could be modified.