Objects In This Ephemeris
--------------------------------------------------------
 
        Name                  Id-code
        -------------         -------
        IUE...................-110637
 
 
Approximate Time Coverage
 
        From: Jan 27, 1978 18:04
        To  : Jul 26, 2000 21:24
 
 
Status
--------------------------------------------------------
 
     This is the current best estimate for the position of the International
     Ultraviolet Explorer (IUE) as of Aug 16, 2000. Currently, no formal
     updates to this ephemeris are planned. However, if you need a more
     recent ephemeris and have reason to believe that observations
     following the creation date of this ephemeris may significantly
     improve the positional knowledge for IUE, we recommend that you
     contact NAIF and to the extent that resources are available we will
     attempt to provide an update to this ephemeris.
 
 
Production/History of this Ephemeris
--------------------------------------------------------
 
     This ephemeris was produced by Bill Taber of the Navigation
     Ancillary Information Facility (NAIF) at the Jet Propulsion
     Laboratory on Aug 16, 2000 for use by the Atmospheres Node of PDS.
     It was transformed to SPK format from a historical archive of
     two-line elements provided by the NASA/Goddard Orbital Information
     Group's "OIG Web Site."
 

Usage
--------------------------------------------------------
 
     To determine the state of the IUE with respect to any object other
     than Earth, you need at a minimum a planetary ephemeris. We
     recommend using the  JPL planetary ephemeris DE405. This ephemeris
     is available via anonymous ftp on NAIF's ftp server:
     naif.jpl.nasa.gov (ip address 137.78.218.69) in the directory
     pub/naif/generic_kernels/spk. Both binary and transfer format
     ephemerides are available.
 
        de405.bsp ( binary format )
        de405.xsp ( transfer format )
        de405.cmt ( comments about de405 )
 
 
Accuracy
--------------------------------------------------------
 
     Studies performed by NAIF indicate that ephemerides based on two-line
     elements are accurate to approximately 1 km relative to earth.
 
 
Inquiries
 
     If you have any questions regarding this ephemeris contact
 
        Bill Taber
        btaber@spice.jpl.nasa.gov
        Phone (818) 354-4279
        FAX   (818) 393-6388
 
        JPL
        MS 301/125L
        4800 Oak Grove Drive
        Pasadena, CA 91109