4 SBF Reference
GPSAlm
Number:
5892
"OnChange"
interval: block generated each time a new almanac data set is re-
ceived from a GPS satellite
The
block contains the decoded almanac data for one GPS satellite. These data are
conveyed in subframes 4 and 5 of the satellite navigation message. Refer to GPS ICD for
further details.
Parameter
Type Units
Do-Not-Use
Description
Sync1
c1
Block Header, see 4.1.1
Sync2
c1
u2
ID
u2
Length
u2
1
byte
u4
0.001
s
4294967295
u2
1
week
65535
u1
ID of the GPS satellite of which the almanac is given in this block
(see 4.1.9)
Reserved
u1
Reserved for future use, to be ignored by decoding software
e
f4
Eccentricity
t_oa
u4
1
s
almanac reference time of week
delta_i
f4
1
semi-circle
Inclination angle at reference time, relative to
i
0
= 0.3
semi-
circles
OMEGADOT
f4
1
semi-circle / s
Rate of right ascension
SQRT_A
f4
1
m
1/2
Square root of the semi-major axis
OMEGA_0
f4
1
semi-circle
Longitude of ascending node of orbit plane at weekly epoch
omega
f4
1
semi-circle
Argument of perigee
M_0
f4
1
semi-circle
Mean anomaly at reference time
a_f1
f4
1
s / s
SV clock drift
a_f0
f4
1
s
SV clock bias
u1
1
week
Almanac reference week, to which t_oa is referenced
config
u1
Anti-spoofing and satellite configuration (4 bits from subframe
4, page 25)
health8
u1
health on 8 bits from the almanac page
health6
u1
health summary on 6 bits (from subframe 4, page 25 and sub-
frame 5 page 25)
Padding
u1[..]
Padding bytes, see 4.1.5
339
Summary of Contents for PolaRx5TR
Page 1: ...PolaRx5TR Reference Guide Applicable to version 5 5 0 of the Firmware ...
Page 73: ...3 Command Line Reference Chapter 3 Command Line Reference 73 ...
Page 130: ...3 Command Line Reference COM1 gim CR R gim IonosphereModel off COM1 130 ...
Page 237: ...3 Command Line Reference COM1 237 ...
Page 279: ...3 Command Line Reference COM1 279 ...
Page 294: ...4 SBF Reference Chapter 4 SBF Reference 294 ...