NMEA messages and variables for the TLE upload

[AndronikosKostas]

Description of the Issue

This issue outlines the data required for download from the GNSS system, including the specific NMEA messages and variables of interest that will be used for the TLE generation.

GNSS Data

RMC: UTC Time 0.1ms precision in each message
RMC: Latitude, N/S indicator, Longitude, E/W Indicator, Altitude, Status ('A' = Data Valid)
RMC: UTC Date (captured at both the beginning and end of the orbit)

NMEA variables that need further investigation

• RMC: Speed over ground 000.0 ~ 999.9 in knots (but 8.2 km/s is approximately 15,951 knots ???)
• RMC: Course over ground

Calculations

• Calculate how many bytes will be sent with the above configuration

References

https://drive.google.com/drive/u/0/folders/1Byiyk1EfDtcBBu7YEYjtMmB47DgSCtch

[AndronikosKostas]