RAWALM

Raw GPS L1 C/A Almanac data

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2

This log contains the undecoded GPS almanac subframes as received from the satellite. For more information about Almanac data, refer to An Introduction to GNSS available on our website at novatel.com/an-introduction-to-gnss.

Message ID: 74

Log Type: Asynch

Recommended Input:

log rawalma onchanged

ASCII Example:

#RAWALMA,USB1,0,54.0,SATTIME,2209,512250.000,02000020,cc1b,16809;

2210,61440.000,36,

1,8b0284a683b741617b0f1da7fd7000a10d0a6fe69624de9116263f2fffd1,

2,8b0284a6863442a7520f0f5ffd5600a10cf76c306ac62dda1c751caa000e,

3,8b0284a688b74321ef0f1464fd6300a10c9d9a02d626d19ce8f3d8dfff9d,

4,8b0284a68b36440ed50f0bfcfd4000a10c67c614e78719785cff7fea0026,

5,8b0284a68db74530d60f0bf0fd5600a10d5998511a2996db8266e6f5000b,

6,8b0284a6903646150b0f1d37fd6d00a10d816f9046dd08a41f9de527009f,

7,8b0284a692b44783b70f059efd5c00a10cf2ef9113a38e0ffaf04e2a000a,

8,8b0284a69536483d030f0da3fd2200a10da643d11906d3826f02aef70006,

9,8b0284a697b44911130f0770fd3900a10bfcc3e4b94c6129844e81d3003e,

10,8b0284a69a354a3e480f1443fd6500a10d0e99e60d9a5e76c36848c9ff92,

11,8b0284a69cb44b02f50f0d78fd5bffa10c457199187328c76e423efc003b,

12,8b0284a69f354c46e70f11a3fd4900a10c0d1ce6f23456f0e271e5e3ffda,

13,8b0284a6a1b44d306c0f10d1fd4800a10ce3ca2eb72584145db6b328005d,

14,8b0284a6a4374e0f210f06d6fd3e00a10ce41b91cf7e35bbe16d55f10018,

15,8b0284a6a6b54f73050ff7bffd2100a10daebf79842c82e548176cf80022,

16,8b0284a6a93550685a0f1190fd4600a10cd81da8911daac8963f89beffee,

17,8b0284a6abb7516ea50f1790fd3400a10bff47360bc326976e454250002d,

18,8b0284a6ae345212f30f1319fd6000a10c85702a367b999023da9d16ffab,

19,8b0284a6b0b7534ba10f16cdfd3400a10d3049099c53ddb4cf43e7140037,

20,8b0284a6b3365427670f0074fd4b00a10c2a939b0180ea134062d6430011,

21,8b0284a6b5b755c6f10f0ba5fd5600a10db26c197fd946af759ce6150007,

22,8b0284a6b836566d600f0c0ffd4100a10cffc80d8db484ba69e9f1220040,

23,8b0284a6bab457118d0f1111fd6200a10d4698de217a73b2f78a52fdffe7,

24,8b0284a6bd3658662b0ffad0fd4c00a10d14ec22c7212fb622a9131fffd0,

25,8b0284a685b05956250f0983fd4400a10d0519bb6728daa2d5b6282a0034,

26,8b0284a688315a38d60ffd0bfd3600a10d9917bfe30fd6f2ba7af21b0023,

27,8b0284a68ab35b56710f1355fd2a00a10cd244a3931bbd7f70647e1a0055,

0,000000000000000000000000000000000000000000000000000000000000,

29,8b0284a692325d119e0f18e8fd3500a10d4147bfe95beea17518febcfff7,

30,8b0284a694b35e2fa30ffbf2fd4d00a10dc1f00c20923e8ffa7e58ba001a,

31,8b0284a697325f55780f085dfd5d00a10d86f051630fe442e7e443e80018,

32,8b0284a699b16030d70f09edfd3d00a10c3fc45da6a2d3218b29e1efffcb,

51,8b0284a6bfb4730fa2000000000000000fc0000000000000000000155557,

55,8b0284a6ab3177444d3039272f4c20394a2d4e503a2e4854384c4f504c03,

56,8b0284a6adb0781303fefe3908fefcfffff2fffffffa0fa2128907120001,

63,8b0284a6bf327fb9bcababbbca9ca9ac9999cbbbb9abab00000fc0000000*f7f7e59e

The OEM7 family of receivers automatically saves almanacs in their Non‑Volatile Memory (NVM), therefore creating an almanac boot file is not necessary.

Field	Field type	Description	Format	Binary Bytes	Binary Offset
1	Log header	RAWALM header For information about log headers, see ASCII, Abbreviated ASCII or Binary.		H	0
2	ref week	Almanac reference week number	Ulong	4	H
3	ref secs	Almanac reference time (ms)	GPSec	4	H+4
4	#subframes	Number of subframes to follow	Ulong	4	H+8
5	svid	SV ID (satellite vehicle ID) A value between 1 and 32 for the SV ID indicates the PRN of the satellite. Any other values indicate the page ID. See section 20.3.3.5.1.1, Data ID and SV ID, of IS-GPS-200L for more details. To obtain copies of IS-GPS-200, refer to the GPS website (http://www.gps.gov/technical/icwg/).	Ushort	2	H+12
6	data	Subframe page data	Hex	30	H+14
7...	Next subframe offset = H+12+(#subframe x 32)
8	xxxx	32-bit CRC (ASCII and Binary only)	Hex	4	H+12+(#subframes x 32)
9	[CR][LF]	Sentence terminator (ASCII only)	-	-	-