Novatel EuroPak-15a, User Manual

Page: 94 / 134

94 EuroPak-15a Receiver User Manual Rev 5
Chapter 6 Data Logs
6.3.10 SATVIS Satellite Visibility
This log outputs satellite visibility data and additional satellite information based on the specified position type.
See also the POSITIONTYPE command on
Page 61 .
Log Type: Synch Message ID: 48
Recommended Input:
LOG SATVISA ONTIME 60
ASCII Example:
#SATVISA,COM1,0,44.0,FINE,1039,490308.000,00000028,6002,0;
TRUE,TRUE,27,
14,0,0,74.5,267.4,458.2,458.926672761,
25,0,0,61.3,73.7,-1252.6,-1251.902056196,
1,0,0,55.9,277.4,1799.2,1799.897879028,
16,0,0,33.6,305.9,2874.8,2875.534296744,
...
26,0,0,-82.0,114.8,-188.9,-188.237459086*bf8c9522
Field
Field
Name
Description Format
Binary
Bytes
Binary
Offset
1 header
This field contains the message header, in ASCII or Binary
format. See Section 4.3 on Page 35 .
H 0
2 sat vis
Indicates if the satellite visibility is valid. See
Table 47 on Page 95 .
Enum 4 H
3 comp alm
Indicates if the complete almanac was used. See
Table 48 on Page 95 .
Enum 4 H+4
4 #sat Number of satellite data sets to follow ULong 4 H+8
5 PRN
GPS satellite PRN number of range measurement
(GPS only).
Short 2 H+12
6 Reserved Short 2 H+14
7 health
Satellite health
a
a. Satellite health values may be found in ICD-GPS-200. To obtain copies of ICD-GPS-200, refer to ARINC. A
list of standards and references with contact information can be found in the GPS+ Reference Manual
available on our website at
http://www.novatel.com/support/docupdates.htm .
ULong 4 H+16
8 elev Elevation (degrees) Double 8 H+20
9 az Azimuth (degrees) Double 8 H+28
10 true dop Theoretical Doppler of satellite (Hz) Double 8 H+36
11 app dop Apparent Doppler for this receiver (Hz) Double 8 H+44
12 Next satellite data set, offset = H + 12 + (# previous sat x 40)
variable 32-bit CRC ( ASCII and Binary only) Hex 4
H+12+
(#sat x 40)