User Profiles store site specific information.  This is information is then stored in the FITs header of your saved images.  In general, this information is useful for astrometry measurement (or even for personal organization).  

Selecting a profile as "default" means that all new sequences will automatically use this profile.

Auto Populate:  If you have an Internet connection, you can attempt to auto locate your position.  Please be careful with this... sometime internet geoloaction is not so great.

Additionally, if you have a telescope (mount) connected, you can either:

  • Create a new user profile by clicking "Import to Scope" (this will query the scope for it's current latitude, longitude and elevation... must have been set by you in the past).
  • Use an existing profile to set the current location of the telescope (this is very useful if you set up in different locations).  Proper latitude and longitude are import for determining time until meridian flip.