Structure Almanac
┗ HPE.Gnss.Almanac
namespace: HPE.Gnss
packed: true
Generalized Almanac orbit in GPS reference frame. One record per satellite.
Summary
Field Detail
- id (required) : uint8
-
Satellite identifier, valid range is 0-63.
- toa (required) : uint8, in 2^12 seconds
-
Time of almanac in seconds. Value is integer encoded with scale factor 2^12
- deltai0 (required) : int16, in 2^-19 semi-circles
-
Relative inclination to i0 = 0.3 semi-circles at reference time. Value is integer encoded with scale factor 2^-19
- OmegaDot (required) : int16, in 2^-38 seconds
-
Rate of Right Ascension in semi-circles/sec. Value is integer encoded with scale factor 2^-38
- af0 (required) : int16, in 2^-20 seconds
-
SV clock bias in seconds. Value is integer encoded with scale factor 2^-20
- af1 (required) : int16, in 2^-38 seconds
-
SV clock bias rate in seconds/second. Value is integer encoded with scale factor 2^-38
- eccentricity (required) : uint16, in 2^-21
-
Eccentricity of the orbit. Value is integer encoded with scale factor 2^-21
- sqrtA (required) : uint24, in 2^-11 meters^1/2
-
Square root of Mean anomaly. Value is integer encoded with scale factor 2^-11
- Omega0 (required) : int24, in 2^-23 semi-circles
-
Longitude of ascending node in semi-circles. Value is integer encoded with scale factor 2^-23
- omega (required) : int24, in 2^-23 semi-circles
-
omega argument of perigee in semi-circles. Value is integer encoded with scale factor 2^-23
- M0 (required) : int24, in 2^-23 semi-circles
-
Mean anomaly at reference time in semi-circles. Value is integer encoded with scale factor 2^-23
- SvHealth (required) : uint8
-
Satellite health flags.