[teqc] New site flag when splicing Leica .m00 files

Lou Estey lou at unavco.org
Tue Jun 24 15:11:14 MDT 2008


Dear Matt, and others using Leica MDB:

>> teqc -lei mdb +diag +mds file.m00
>> <various records>
>> Leica MDB frame 0x9cae @ 0o00300734 = 0x000181dc = 00098780   type= 0x82= 130
>> ! Notice ! Leica MDB 130:   survey ends @ 2008 Mar 25 02:00:00.000 GPStime
>> 2008-03-25 01:00:00  2008-03-25 01:59:30     98794  file.m00

>> So, yes, it seems like the leica is doing something a little strange and
>> putting a new marker at the end of every 1h file.
>>
>> I would support a new option to ignore site occupation changes (event
>> flags 2 and 3) as you suggest. But I will also follow this up with
>> Leica.
> 
> Ok, it's now on the (ever-growing) teqc "to do" list.  This option should
> be very easy to add.

The resolution of this problem is:

1) Leica has informed me that of their plan to release a version 6.0 of
their GPS1200 firmware in July 2008 that identifies when a "survey end"
is occurring with consecutive files at the same survey point (so no real
change in site occupation should be indicated in the corresponding RINEX),
and

2) I've changed teqc to look for these MDB flags in record 130 (so 6.0 MDB
files translated with the corrected teqc should not show the problem), and

3) I've added new +rssc (== "report site survey changes", the default) and
-rssc (== "don't report site survey changes") to teqc so that consecutive
pre-6.0 MDB files at the same survey point can be translated without a new
site occupation flag showing up in the RINEX at the corresponding MDB file
boundaries).

See http://facility.unavco.org/software/teqc/log.html

So for pre-6.0 MDB where you want to eliminate the site occupation
flags in the RINEX, use -rssc, e.g. with 5.62 MDB data without -rssc:

[522] teqc -warn 5.62/*.m* > tmp.obs; grep "   3  0" tmp.obs
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:02:00.000 GPS time
! Notice ! GPS week in Leica ephemeris record = 1471; (default) GPS week = 1483
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:03:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:03:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:04:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:04:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:05:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:05:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:06:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:06:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:07:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:07:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:08:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:08:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:09:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:09:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:10:00.000 GPS time
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 11 06:10:00.000 GPS time
! Notice ! Leica MDB 130:   survey ends @ 2008 Jun 11 06:11:00.000 GPS time
                             3  0
                             3  0
                             3  0
                             3  0
                             3  0
                             3  0
                             3  0
                             3  0

but with -rssc:

[524] teqc -rssc -warn 5.62/*.m* > tmp.obs; grep "   3  0" tmp.obs
! Notice ! GPS week in Leica ephemeris record = 1471; (default) GPS week = 1483

and for the upcoming 6.0 MDB:

[525] teqc -warn 6.0/*.m* > tmp.obs; grep "   3  0" tmp.obs
! Notice ! Leica MDB 130: survey starts @ 2008 Jun 10 13:52:00.000 GPS time
! Notice ! GPS week in Leica ephemeris record = 1482; (default) GPS week = 1483

i.e. all with be well with the improved teqc.

I suppose this plus other improvements since 15 Feb warrants trying to get
a new release put together soon.

cheers,
--lou

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Louis H. Estey, Ph.D.              office:  [+001] 303-381-7456
UNAVCO, 6350 Nautilus Drive           FAX:  [+001] 303-381-7451
Boulder, CO  80301-5554            e-mail:  lou  unavco.org
    WWW:  http://www.unavco.org   http://jules.unavco.org

"If the universe is the answer, what is the question?"
                                                -- Leon Lederman
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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