Document Title: 41
User’s Manual for the GPS Orion-S/-HD Receiver
Document No. Issue 1.0
GTN-MAN-0110 June 22, 2003
DLR/GSOCNo part of this document shall be reproduced in any form or disclosed to third parties without prior authorization.
4.4.2 Working Parameters
4.4.2.1 F50 – Reference Epoch for Trajectory Polynomials
MsgID Chars. Format Description
F50 24
Reference epoch for trajectory polynomials
1
x <STX>
3
xxx Message Id (=F50)
4
xxxx Year
2
xx Month
2
xx Day
2
xx Hours
2
xx Minutes
4
xx.x Seconds
3
xxx Time system indicator (GPS or UTC)
1
x <ETX>
Example:
<STX>F502003 4 1 52813.2UTC04<ETX>
4.4.2.2 F51 – Trajectory Polynomials
MsgID Chars. Format Description
F51 118
Trajectory polynomials
1
x <STX>
3
xxx Message Id (=F51)
2
xx Running index of polynomial (0..9)
10
sxxxxx.xxx t_0 ([s] since reference epoch)
11
sxxxxxxxx.x a_x [m] (WGS-84)
11
sxxxxx.xxxx b_x [m/s] (WGS-84)
11
sxxx.xxxxxx c_x [m/s^2] (WGS-84)
11
sxxxxxxxx.x a_y [m] (WGS-84)
11
sxxxxx.xxxx b_y [m/s] (WGS-84)
11
sxxx.xxxxxx c_y [m/s^2] (WGS-84)
11
sxxxxxxxx.x a_z [m] (WGS-84)
11
sxxxxx.xxxx b_z [m/s] (WGS-84)
11
sxxx.xxxxxx c_z [m/s^2] (WGS-84)
2
xx Checksum
1
x <ETX>
Example:
<STX>F51 0 +0.000 +2245875.5 +11.8606 +2.599629 +866832.3 +7.7294 +0.
602120 +5886908.8 -11.8314 +12.4239247F<ETX>
