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D.3.13 GLORAWEPHEM
Raw GLONASS Ephemeris Data
This log contains the raw ephemeris frame data as received from the GLONASS satellite.
Message ID:
Log Type:
792
Asynch
Recommended Input:
log glorawephema onchanged
Example:
#GLORAWEPHEMA,COM1,3,47.0,SATTIME,1340,398653.000,00000000,332d,2020;
38,9,0,1340,398653.080,4,
0148d88460fc115dbdaf78,0,0218e0033667aec83af2a5,0,
038000b9031e14439c75ee,0,0404f22660000000000065,0*17f3dd17
…
#GLORAWEPHEMA,COM1,0,47.0,SATTIME,1340,398653.000,00000000,332d,2020;
41,13,0,1340,398653.078,4,
0108d812532805bfa1cd2c,0,0208e0a36e8e0952b111da,0,
03c02023b68c9a32410958,0,0401fda44000000000002a,0*0b237405
Field#
Field type
Format
Data Description
Binary
Bytes
Binary
Offset
H
0
1
GLORAWEPHEM
header
Log header
2
sloto
Slot information offset - PRN identification
(Slot + 37). Ephemeris relates to this slot and
is also called SLOTO in CDU
Ushort
2
H
3
freqo
Frequency channel offset in the range 0 – 20
Ushort
2
H+2
4
sigchan
Signal channel number
Ulong
4
H+4
5
week
GPS Week, in weeks
Ulong
4
8
6
time
GPS Time, in milliseconds (binary data) or
seconds (ASCII data)
Ulong
4
12
7
#recs
Number of records to follow
Ulong
4
H+16
8
string
GLONASS data string
Uchar
[string size] 1
variable
H+20
9
Reserved
Uchar
1
variable
10...
Next record offset = H + 20 + (#recs x [string size + 1])
variable
xxxx
32-bit CRC (ASCII and Binary only)
Hex
4
variable
variable
[CR][LF]
Sentence terminator (ASCII only)
-
-
-
1. In the binary log case, additional bytes of padding are added to maintain 4-byte alignment.
SPAN-SE User Manual Rev 7
261