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|  MIL-D-70789A (AR)
APPENDIX D
*************************************************************************
30.4.16 Message: GEODETIC DATA
From:
DRU
To:
Prime System
Number of Data Characters: 29
Data Format:
Binary 2'S Complement
MESSAGE STRUCTURE
STATUS
ERROR DET.
ECHO
FLAG(F)
SEQ#(N)
S1,S2
IDENTIFIER(I)
DATA(D)
CODE (E) FLAG(F)
16 Bits D1-D29
01111110
XXX
16 bits 01111110
10001
D1, D2
Latitude Degrees
Characters (16 bits)
Range:
+ 90 degrees
Resolution: 1 degree
Latitude Minutes
D3, D4, D5, D6 Characters (32 bits)
Range:
(unsigned binary)
0 to4 59.99999 arc minutes
2
Resolution:
1/2 arc minute
D7, D8
Longitude Degrees
Characters (16 bits)
Range:
180 degrees
Resolution: 1 degree
Longitude Minutes
D9, .D10, D11, D12 Characters (32 bits)
Range:
0 to4 59.99999 arc minutes
(unsigned binary)
2
Resolution: 1/2 arc minute
Altitude
D13, D14, D15, D16 Characters (32 bits)
Range:
-32,768 to +32,767 meters
Resolution: 0.01 meters
Velocity North
D17, D18, D19, D20 Characters (32 bits)
Range:
32,6767 meters/see
1
Resolution: 1/2 meters/see
Velocity East
D21, D22, D23, D24 Characters (32 bits)
Range :
+ 326 767 meters/see
1
Resolution: 1/2 meters/see
Velocity Up
D25, D26, D27, D2B Characters (32 bits)
+ 32 767 meters/see
Range:
Resolution: 1/2 6 meters/see
D29 Character (8 bits unsigned)
DRU Spheroid
0 to 34
Range:
Resolution: 1
197
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