Positioning Suite APIs

Contents, Hierarchy

Structure `Ephemeris`

┗ HPE.Gnss.Ephemeris

namespace: HPE.Gnss
packed: true

Description

Generalized GPS 15 element precision Keplerian orbit in GPS reference frame. One record per satellite.

Summary

Fields defined in HPE.Gnss.Ephemeris

id, toe, iode, eccentricity, i0, OmegaDot, sqrtA, Omega0, omega, M0, deltan, idot, Cis, Cic, Crs, Crc, Cus, Cuc, toc, iodc, af0, af1, af2, TGD, SvHealth

Field Detail

id (required) : uint8: Satellite identifier, valid range is 0-63.

toe (required) : uint16, in 2^4 seconds: Time of Ephemeris. Value is integer encoded with scale factor 2^4

iode (required) : uint8: Issue of data Ephemeris. The value for comparison with the 8 LSBs of the IODC

eccentricity (required) : uint32, in 2^-33: Eccentricity of the orbit. Value is integer encoded with scale factor 2^-33

i0 (required) : int32, in 2^-31 semi-circles: Inclination at reference time in semi-circles. Value is integer encoded with scale factor 2^-31

OmegaDot (required) : int24, in 2^-43 seconds: Rate of Right Ascension in semi-circles/sec. Value is integer encoded with scale factor 2^-43

sqrtA (required) : uint32, in 2^-19 meters^1/2: Square root of Mean anomaly. Value is integer encoded with scale factor 2^-19

Omega0 (required) : int32, in 2^-31 semi-circles: Longitude of ascending node in semi-circles. Value is integer encoded with scale factor 2^-31

omega (required) : int32, in 2^-31 semi-circles: omega argument of perigee in semi-circles. Value is integer encoded with scale factor 2^-31

M0 (required) : int32, in 2^-31 semi-circles: Mean anomaly at reference time in semi-circles. Value is integer encoded with scale factor 2^-31

deltan (required) : int16, in 2^-43 semi-circles: Mean Motion Difference From Computed Value in semi-circles/sec. Value is integer encoded with scale factor 2^-43

idot (required) : int16, in 2^-43 semi-circles: Rate of Inclination in semi-circles/sec. Value is integer encoded with scale factor 2^-43

Cis (required) : int16, in 2^-29 radians: Amp. Sin Correction of Inclination in radians. Value is integer encoded with scale factor 2^-29

Cic (required) : int16, in 2^-29 radians: Amp. Cosine Correction of Inclination in radians. Value is integer encoded with scale factor 2^-29

Crs (required) : int16, in 2^-5 meters: Amp. Sin Correction of orbit radius in meters. Value is integer encoded with scale factor 2^-5

Crc (required) : int16, in 2^-5 meters: Amp. Cosine Correction of orbit radius in meters. Value is integer encoded with scale factor 2^-5

Cus (required) : int16, in 2^-29 radians: Amp. Sin Correction of Latitude in radians. Value is integer encoded with scale factor 2^-29

Cuc (required) : int16, in 2^-29 radians: Amp. Cosine Correction of Latitude in radians. Value is integer encoded with scale factor 2^-29

toc (required) : uint16, in 2^4 seconds: Time of clock. Value is integer encoded with scale factor 2^4

iodc (required) : uint16, in discretes: Issue of data Clock.

af0 (required) : int24, in 2^-31 seconds: SV clock bias in seconds. Value is integer encoded with scale factor 2^-31.

af1 (required) : int16, in 2^-43 seconds: SV clock bias rate in seconds/second. Value is integer encoded with scale factor 2^-43.

af2 (required) : int8, in 2^-55 seconds: SV clock bias rate in seconds/second^2. Value is integer encoded with scale factor 2^-55.

TGD (required) : int8, in 2^-31 seconds: L1-L2 group delay differential in seconds. Value is integer encoded with a scale factor 2^-31.

SvHealth (required) : uint8: Satellite health flags.