DSN GTS and GBTS to JPL MMNAV to ISAS NAV
Usuda GTS to ISAS NAV to JPL MMNAV
What: Ku-band Doppler tracking data will be
transmitted in near real-time from the DSN GTS to the JPL MMNAV team and
from the Usuda GTS to the ISAS navigation team, and post-pass (via FTP)
from the GBTS to the JPL MMNAV team.
How: Files will be named YYMMDD-YYMMDD-xxxx-x.odf, where the first YYMMDD is the start date in UTC of the contents of the file, and the second YYMMDD is the stop date in UTC of the contents of the file. Files named YYMMDD-YYMMDD-isas-s.odf will contain S-band range and range-rate data; YYMMDD-YYMMDD-isas-k.odf will contain Ku-band doppler data from the Usuda GTS; and YYMMDD-YYMMDD-jpl-k.odf will contain Ku-band doppler data from the DSN and GBTS GTSs. GBTS files will be named YYMMDDHHMM.dop, where the YYMMDDHHMM correspond to the date and time of the BGN2LK entry in the SRS file. Data transferred between the DSN GTSs and GBTS and JPL MMNAV conforms to the JPL/DSN `TRK 2-30' format, whereas data transferred between ISAS and JPL MMNAV will be in (the compatible) `TRK 2-18' format.
When: The GBTS doppler data will typically be available within 2 hours after a tracking pass, or by the next morning (local time).
Where: ISAS data will be placed in
vsop/oddata/isasodf/kudop on the VSOG FTP site.
JPL MMNAV data will be placed on the JPL MMNAV FTP site in
[VSOP.ODDATA.JPLODF.KUDOP] (note the capital letters)
as shown in §10.1.
GBTS files will be available via the GBTS FTP site in
the directory /ovlbi/out.