UNICORECOMM Unicore - BDSEPHEM BDS Ephemeris

Command and Log Reference
62
6.2.7 BDSEPHEM BDS Ephemeris
This log contains BDS ephemeris.
Message ID: 1047
Recommend Input:
BDSEPHEMA ONCHANGED
LOG output:
#BD2EPHEMA,COM1,0,83.0,FINE,1971,121080.000,577928,577936,
18;1,121050.0,0,1,1,1971,1971,118800.0,4.216468048e+07,7.53959
9769e-10,1.863292914e+00,3.8039823994e-04,-2.6667999416e+00,-
7.872469723e-06,2.252077684e-05,-6.79968750e+02,-
2.40328125e+02,-3.818422556e-08,-2.281740308e-
08,1.1047950166e-01,2.500104139e-12,-6.552244124e-
01,1.89650757e-10,0,118800.0,1.420000000e-08,-1.040000000e-
08,-1.29431e-04,4.63602e-11,0.00000e+00,FALSE,7.292058730e-
05,4.00000000e+00*ede59ac4
Table 6-27: BDS Ephemeris Message
ID
Field
Description
Format
Binary
Bytes
Binary
Offset
1
BDSEPHEM
header
Log header
H
0
2
PRN
BDS satellite PRN umber（161~197）
Ulong
4
H
3
Tow
Time stamp of subframe 1(refer to GPST),
seconds
Double
8
H+4
4
Health
Health status:a 1-bit health code defined in
BDS-ICD-SIS-2.1
Ulong
4
H+12
5
AODE
Age of data, ephemeris
Ulong
4
H+16
6
AODE
Age of data, ephemeris (same as field #5)
Ulong
4
H+20
7
Week
GPS week number(toe week)
Ulong
4
H+24
8
Z Week
Z count week number, which from
subframe 1(tow week)
Ulong
4
H+28
9
Toe
Reference time of ephemeris(refer to
GPST), seconds
Double
8
H+32
10
A
Semi-major axis of satellite orbit, meters
Double
8
H+40
11
ΔN
Correction of satellite Mean angular
velocity, radians/second
Double
8
H+48
12
M0
Mean anomaly of TOE time, radians
Double
8
H+56
13
Ecc
Eccentricity of satellite orbit
Double
8
H+64
14
ω
Argument of perigee, radians
Double
8
H+72
15
Cuc
Argument of Latitude(amplitude of cosine,
Double
8
H+80