NavIC/IRNSS Navigation Data (RINEX v3)

R2026b

This table shows the format of the NavIC/IRNSS navigation data field NavIC for RINEX version 3 returned in the output argument data from the rinexread function.

If the navigation data contains NavIC/IRNSS data, it is returned in the field data.NavIC.

Field	Data Type	Description
`Time`	`datetime`	NavIC/IRNSS clock time (same as GPS time)
`SatelliteID`	`double`	Satellite system (I) number (PRN)
`SVClockBias`	`double`	SV clock bias (s)
`SVClockDrift`	`double`	SV clock drift (s/s)
`SVClockDriftRate`	`double`	SV clock drift rate (s/s², equivalent to 1/s)
`IODEC`	`double`	Issue of Data, Ephemeris and Clock
`Crs`	`double`	Amplitude of the sine harmonic correction term to the orbit radius (m)
`Delta_n`	`double`	Mean motion difference from the computed value at reference time (rad/s)
`M0`	`double`	Mean anomaly at the reference time (rad)
`Cuc`	`double`	Amplitude of the cosine harmonic correction term to the argument of latitude (rad)
`Eccentricity`	`double`	Eccentricity of the satellite orbit (dimensionless)
`Cus`	`double`	Amplitude of the sine harmonic correction term to the argument of latitude (rad)
`sqrtA`	`double`	Square root of the semimajor axis (`sqrt(m)`)
`Toe`	`double`	Time of ephemeris (s of respective satellite week)
`Cic`	`double`	Amplitude of the cosine harmonic correction term to the angle of inclination (rad)
`OMEGA0`	`double`	Longitude of ascending node of orbit plane at weekly epoch (rad)
`Cis`	`double`	Amplitude of the sine harmonic correction term to the angle of inclination (rad)
`i0`	`double`	Inclination angle at reference time (rad)
`Crc`	`double`	Amplitude of the cosine harmonic correction term to the orbit radius (m)
`omega`	`double`	Argument of perigee (rad)
`OMEGA_DOT`	`double`	Reference rate of right ascension (rad/s)
`IDOT`	`double`	Rate of inclination angle (rad/s)
`BRDCOrbit5Spare2`	`double`	Spare entry. May be used in a future version.
`IRNWeek`	`double`	IRN week number, with Toe. Continuous number, not mod(1024). The value uses the GPS-compatible continuous week count (epoch 6 January 1980). The native IRNSS time system epoch is 22 August 1999.
`BRDCOrbit5Spare4`	`double`	Spare entry. May be used in a future version.
`UserRangeAccuracy`	`double`	User range accuracy (m). See NavIC/IRNSS ICD Section 6.2.1.4.
`HealthFlags`	`double`	Health (Subframe 1, bits 155 and 156), where 0 = L5 and S healthy, 1 = L5 healthy and S unhealthy, 2 = L5 unhealthy and S healthy, 3 = both L5 and S unhealthy.
`TGD`	`double`	Timing group delay (s)
`BRDCOrbit6Spare4`	`double`	Spare entry. May be used in a future version.
`TransmissionTime`	`double`	Transmission time of the message (seconds of the NavIC/IRNSS week)
`BRDCOrbit7Spare2`	`double`	Spare entry. May be used in a future version.
`BRDCOrbit7Spare3`	`double`	Spare entry. May be used in a future version.
`BRDCOrbit7Spare4`	`double`	Spare entry. May be used in a future version.

NavIC/IRNSS Navigation Data (RINEX v3)

See Also