Rapids

 
USNO RAPID PRODUCTS
  • Files available:
    • GPS-satellite orbit + clock files (IGS .sp3 format)
    • GPS-based receiver- and satellite-clock solutions (IGS .clk format)
    • Earth-orientation files (IGS .erp format)
       
  • Each file provides 24 hours of post-processed solutions.  These files are also available via anonymous ftp at ftp://maia.usno.navy.mil/GPS/rapids/
     
  • File name convention:
    • usn15002.sp3 provides solutions for GPS week 1500, day 2 (Tuesday), midnight-to-(almost) midnight.
    • Similarly, usn15002.erp, usn15002.clk.
    • general format: usnwwwwd.sp3, .clk, .erp
       
  • Available ~ 16:00 UTC of following day.
 
To learn more about these products, click here.
 
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