You are here: Home USNO Earth Orientation EO Information Center Read Me Files
The USNO websites aa.usno.navy.mil, ad.usno.navy.mil, aristarchus.usno.navy.mil, maia.usno.navy.mil, rorf.usno.navy.mil, and toshi.usno.navy.mil are undergoing modernization efforts. The expected completion of the work and return of service is estimated as 30 April 2020. Please submit a requirements form to the USNOPAO if the information you are seeking is not accessible via other means.
 

Read Me Files

readme.finals

format for finals.daily, finals.data, and finals.all

readme.finals2000A

format for finals2000A.daily and finals2000A.data

readme.gpsrapid

format for gpsrapid.daily and gpsrapid.out

USNO Master Clock Time
Javascript must be Enabled