Precise clock are not used from SP3 combined orbits/clocks

[eltorio]

Dear Tomoji,
I suspect that precise clocks are not use with SP3 IGS predicted ultra rapid orbits and clock.

On RTKNAVI I choose for stream 3 FTP / "cddis.gsfc.nasa.gov/gps/products/%W/igu%W%D_%hb.sp3.Z" / anonymous / none@world.com / offset -6h
Stream 1 is a stream NTRIP / www.euref-ip.net / 2101 / DENT0

Option "precise ephemeris" is set.

No fix can be obtained.

If I look at the debug trace 3, the problem seems to come from the absence of precise clock.
For having a fix, I need to add a stream 2 with broadcast ephemeris (RTCM3EPH) , but after looking at the debug trace precise ephemeris are used but clock are used from the broadcast stream.

[tomojitakasu]

The real-time input of SP3 is not for PPP but for long-baseline RTK. So do not set "precise" as "satellite ephemeris/clock" for real-time PPP. The accuracy of IGU predicted clock is 3 ns (RMS) level and useless for PPP.

[eltorio]

Thank you for your answer, but same behavior for long base line. I tested with 2 euref ntrip streams:
1- www.euref-ip.net:2101/DENT0
2- www.euref-ip.net:2101/VFCH0
3- FTP / "cddis.gsfc.nasa.gov/gps/products/%W/igu%W%D_%hb.sp3.Z"
"Static" / "Precise ephemeris"
with same result, is it normal?

[tomojitakasu]

Please check sp3 files properly downloaded to local directory. Check write permission of the local directory specified as Options - Files - FTP/HTTP Local Directory as well.

[eltorio]

sp3 file is correctly downloaded