UNICORECOMM Unicore - Page 59

Command and Log Reference
59
ID
Field
Description
Format
Binary
Bytes
Binary
Offset
time(PZ-90.02), meters/second
18
vel y
Satellite Y-axis velocity at reference
time(PZ-90.02), meters/second
Double
8
H+60
19
vel z
Satellite Z-axis velocity at reference
time(PZ-90.02), meters/second
Double
8
H+68
20
LS acc x
Lunisolar X-axis acceleration at
reference time(PZ-90.02),
meters/second²
Double
8
H+76
21
LS acc y
Lunisolar Y-axis acceleration at
reference time(PZ-90.02),
meters/second²
Double
8
H+84
22
LS acc z
Lunisolar Z-axis acceleration at
reference time(PZ-90.02),
meters/second²
Double
8
H+92
23
tau_n
Correction to the nth satellite time t_n
relative to GLONASS time t_c, seconds
Double
8
H+100
24
delta_tau_n
Time transmission delay of nth satellite
navigation RF signal between L2 band
and L1 band, second
Double
8
H+108
25
gamma
Frequency correction, second/second
Double
8
H+116
26
Tk
Time of frame start(start from Glonass
day), second
Ulong
4
H+124
27
P
Technical parameter
Ulong
4
H+128
28
Ft
User range accuracy
Ulong
4
H+132
29
age
Age of data, day
Ulong
4
H+136
30
Flags
Information flags, see Table 6-24:
GLONASS Ephemeris Flags Coding
Ulong
4
H+140
31
xxxx
32-bit CRC(for ASCII and Binary only)
Hex
4
H+144
32
[CR][LF]
Sentence terminator(for ASCII only)
-
-
-
a. The last four bits of field ”Health”are used to indicate the ephemeris health:
Bit 0-2: Bn
Bit 3: In
All other bits are reserved and set to 0.
Table 6-24: GLONASS Ephemeris Flags Coding
Bit
Description
ASCII Value
Hex Value
0
P1 flag: time interval between two
adjacent parameters fb values
See Table 6-25: P1
Flags Range
Values
00000001
1
00000002
2
P2 flag: Odd or Even flag of parameter fb
0=even，1=odd
00000004
3
P3 flag: satellite numbers of almanac
0=5，1=4
00000008