;+  
;
; Laboratory for Atmospheric and Space Physics
; University of Colorado, Boulder, Colorado, USA
;
; FILENAME:
;   get_sun_dist.pro
;
; AUTHOR:
;   Chris Jeppesen
;
; DATE:    February 9, 2007 
;
; PURPOSE:
;   Returns the AIM spacecraft's distance to the sun in AU's for the provided orbit_info structure.
;  
; INPUT PARAMETERS:
;   orbit_start_time - time in gps microseconds of the AIM spacecraft's orbit start time
;
; REFERENCES:
; 
; NOTES:
; 
; CONSTRAINTS:
; 
; OTHER SERVERS/MODULES USED:
;
; RELATED MODULES / CLASSES:
;  
; SUPPORTING DATABASE TABLES OR FILES:
;
; USAGE EXAMPLE:
;	sun_dist = get_sun_dist(orbit_start_time)     
;
; RETURN VALUE:
;   Float value indicating the AIM spacecraft's distance to the sun in AU's.  
;
; KEYWORD ARGUMENTS:
;   None
;
function get_sun_dist, orbit_start_time
;-
  junk=sunvec(orbit_start_time,r=r)
  return,r
  
end