[teqc] strange Leica 1200 conversion

Matt King m.a.king at newcastle.ac.uk
Tue Oct 20 07:34:13 MDT 2009


Lou



I've been given some Leica 1200 GX1220+GNSS raw data - one big file per site (~300Mb) covering several months.



I get two things (using either Oct 19, 2009 teqc or Mar 23, 2009, all 32bit Linux static):



1. occasionally Notices of duplicate SVs when converting to one big RINEX, although not too worried about this.



! Notice ! duplicate SV G10 @ 2009 Jun 18 09:14:40.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! 2009 Jun 18 15:30:30.000: poss. incr. of sampling int. OR data gap of 20.000 seconds (min. dt found= 10.000 s)

! Notice ! duplicate SV G26 @ 2009 Jun 21 01:17:50.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! 2009 Jun 21 16:37:00.000: poss. incr. of sampling int. OR data gap of 20.000 seconds (min. dt found= 10.000 s)

! Notice ! duplicate SV G02 @ 2009 Jun 22 05:11:40.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! 2009 Jun 22 16:05:40.000: poss. incr. of sampling int. OR data gap of 20.000 seconds (min. dt found= 10.000 s)

! Notice ! duplicate SV G02 @ 2009 Jun 23 20:30:30.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! duplicate SV G18 @ 2009 Jun 26 22:55:00.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! 2009 Jun 27 14:29:00.000: poss. incr. of sampling int. OR data gap of 20.000 seconds (min. dt found= 10.000 s)

! Notice ! duplicate SV G18 @ 2009 Jun 28 22:46:20.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! duplicate SV G02 @ 2009 Jun 29 08:04:30.000 being eliminated (input = Default_0104_0401_135258.m00)

! Notice ! duplicate SV G18 @ 2009 Jun 30 22:54:20.000 being eliminated (input = Default_0104_0401_135258.m00)



2. more problematically, when I then try and window that big RINEX file into a day RINEX files, I get occasional errors of the kind



teqc -st 20090606000000.0 +ds 86399 kns10910_all.09o >! kns11570.09o

! Notice ! setting TIME OF FIRST OBS to match requested window: 2009 Jun  6 00:00:00.000

! Notice ! NAVSTAR GPS: bad PRN= 42 being rejected @ 2009 Jun  6 12:32:00.000 (min= 1, max= 32)

teqc: teqc windowed: delta = 86399.000 secfailure to read '                                G42G61' on line 5461503 of 'kns10910_all.09o'

        (invalid satellite number) ... exiting



G42 and/or G61 appear every now and again. The June 6 part of the RINEX file translated by teqc looks like:

     8    L1    L2    C1    P1    C2    P2    S1    S2      # / TYPES OF OBSERV

<snip>

09  6  6 12 32  0.0000000  0 14G08G10G24G06G03G21G27G15G18G07G29G19

                                G42G61

 116084108.802 7  90455152.61546  22090068.140

  22090066.840          47.700          40.850

 117169011.193 7  91300509.76146  22296521.320

  22296519.740          47.750          40.150

 114705187.892 8  89380669.18247  21827667.700

  21827666.760          49.250          42.350

 126221600.886 7  98354493.14246  24019169.200

  24019168.240          43.400          37.600

 125670155.278 7  97924788.06345  23914232.260

  23914231.500          44.500          35.900

 113273128.449 8  88264824.21747  21555164.480

  21555161.280          49.800          42.750

 126978798.825 7  98944518.91945  24163261.740

  24163261.240          43.750          34.750

 108956099.696 8  84900861.25947  20733652.540

  20733650.620          50.400          46.750

 125432688.126 7  97739761.24246  23869043.260

  23869040.920          44.650          36.350

 128475542.247 6 100110813.78146  24448081.880

  24448080.740          41.850          38.350

 135488951.258 5 105575799.65255  25782689.680

  25782688.780          35.700          35.750

                 139439317.81346

  34052505.580                          38.400

                                                                  73112011.160





09  6  6 12 32 10.0000000  0 14G08G10G24G06G03G21G27G15G18G07G29G19

                                G28G26







Any desire to look at this file? The other 2 or 3 files I have also give similar, so not just a single receiver it seems.



cheers





Matt King

Reader in Polar Geodesy & RCUK Academic Fellow

School of Civil Engineering and Geosciences  Email: m.a.king at ncl.ac.uk

Cassie Building            Ph:    0191 222 7833 Int: + 44 191 222 7833

Newcastle University       Fax:   0191 222 6502 Int: + 44 191 222 6502

Newcastle upon Tyne        Web:   http://www.staff.ncl.ac.uk/m.a.king/

United Kingdom, NE1 7RU           http://www.ceg.ncl.ac.uk/profiles2/m.a.king




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