Syntax prblem in spp/validate.f90 at line 40.

[changyhe]

Thanks to you and your team for sharing the source code of PRIDE-PPPAR online. I found a small problem when I processed the RINEX obs of a LEO satellite (not GRACE).

validate.f90:40:42:
40 | write(msg,"('gdop error nv=',I4' gdop=',F10.4)") nv,dop(1)
| 1
Warning: Legacy Extension: Missing comma in FORMAT string at (1)

I fixed this by changing this line to:
write(msg,"('gdop error nv=',I4,', gdop=',F10.4)") nv,dop(1)

It is a syntax problem of Fortran, although I am still trying to find the reason for this problem. Hope this will help.

By the way, I am wondering if there is any example for the kinematic orbit determination of non-GRACE satellites? If not, do you have any plan for this scenario? Thanks again.

Best regards,
Changyong He

[Dengyingda]

Hello Changyong He,

Thank you very much for pointing this out and for providing the fix — we really appreciate your help in improving the code. We will review and incorporate this correction in future updates.

Regarding your question about kinematic orbit determination for non-GRACE LEO satellites, we have attached a reference file that you may find helpful for your case. It can serve as a starting point for processing similar datasets.

Please feel free to contact us if you have any further questions.

Best regards,
The PRIDE Team

Extension of PRIDE PPP-AR Kinematic Orbit Determination to Other LEO Satellites.pdf