PASHR

NMEA, Inertial Attitude Data

Platform: 

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7-S

The PASHR log uses a UTC time, calculated with default parameters, to output NMEA messages without waiting for a valid almanac. The UTC time status is set to WARNING since it may not be 100% accurate. When a valid almanac is available, the receiver uses the real parameters and sets the UTC time to VALID. For more information about NMEA, refer to NMEA Standard Logs. The PASHR log contains only INS derived attitude information and is only filled when an inertial solution is available.

As of firmware version 7.03.00, an INS status flag (field 12) has been added to the PASHR log. This change was made to match the industry accepted form of the message. Previous firmware versions on OEM7 and OEM6 do not output this field.

Message ID: 1177

Log Type: Synch

Recommended Input:

log pashr ontime 1

Example:

$PASHR,163029.000,158.09,T,-0.30,+0.31,+0.01,0.029,0.029,0.059,1,1*3B

Field

Structure

Description

Symbol

Example

1

$PASHR

Log header

---

$PASHR

2

Time

UTC Time

hhmmss.sss

195124.00

3

Heading

Heading value in decimal degrees

The heading is the inertial azimuth calculated from the IMU gyros and the SPAN filters.

HHH.HH

305.30

4

True Heading

T displayed if heading is relative to true north.

T

T

5

Roll

Roll in decimal degrees.
The ± sign will always be displayed.

RRR.RR

+0.05

6

Pitch

Pitch in decimal degrees.
The ± sign will always be displayed.

PPP.PP

-0.13

7

Heave

Instantaneous heave in metres. The ± will always be displayed

Heave

+0.01

8

Roll Accuracy

Roll standard deviation in decimal degrees.

rr.rrr

0.180

9

Pitch Accuracy

Pitch standard deviation in decimal degrees.

pp.ppp

0.185

10

Heading Accuracy

Heading standard deviation in decimal degrees.

hh.hhh

4.986

11

GPS Update Quality Flag

0 = No position

1 = All non-RTK fixed integer positions

2 = RTK fixed integer position

1

1

12

INS Status Flag

0 = All SPAN Pre-Alignment INS Status

1 = All SPAN Post-Alignment INS Status - These include:
INS_ALIGNMENT_COMPLETE, INS_SOLUTION_GOOD, INS_HIGH_VARIANCE, INS_SOLUTION_FREE

1

1

13

Checksum

Checksum

*XX

*2B

14

[CR][LF]

Sentence terminator

 

[CR][LF]