[teqc] dumb clock questions
Lou Estey
lou at unavco.org
Mon Aug 29 09:15:33 MDT 2005
Andrew,
> Attached are several summary files with issues that seem to fall under
> the general category of clock steering or lack of it.
>
> The source rinex/dat files for BDZG and BOND (actually the same site; see
> ftp://ftp.panga.cwu.edu/private/bdzg_issue) do not show many (or any) of
> the millisecond clock resets typical of Trimble receivers, and teqc
> reports clock drift of 0. But there are plenty of "C"s in the satellite
> summary chart, which I presume occur where the millisecond resets would
> normally be. The "grmd" file (see ftp://ftp.panga.cwu.edu/pub/data/recent
> for rinex) looks similar but in this case I think the rinex was written by
> Leica's Spider software.
>
> Assuming this is due to "clock steering", does this indicate clock
> steering is "on" or "off" in Trimble's world? I.e., is tracking the
> millisecond resets "clock steering" as clockprep.txt suggests, or is
> adjusting the timestamps to conform with GPS time (resulting in
> range/phase steps) "clock steering"? Or none of the above?
Generally when you see this on a receiver that normally has millisecond
resets (e.g. Trimble, Ashtech), it means that the receiver's clock is
bad or there is a related hardware problem.
This is not due to clock steering being on or off. If clock steering
were on, you would get no "C" and few "m" indicators and the clock drift
would be zero. If clock steering were off (which is was the only available
option until recent years), then you'd still get no "C" and few "m" indicators
and the clock drift with be some number of ms resets per hour (typically 1-10).
So, seeing a lot of "C" or "m" indicators is bad news.
--lou
> SV+------------------------------------------------------------------------+ SV
> 1| _______ __CCC| 1
> 2|_____ __LCCCCCCCCCCCCCCCCCCCCCC__ | 2
> 3|_CCCCCCCCCCCCCL__ ____-CCCCCCCCCCCC| 3
> 4|___ __LCCCCCCCCCCCCCCCCCC___ | 4
> 5| __CCCCCCCCCCCCCCCCCCCCC+__ | 5
> 6|_ ___CCCCCCCCCCCCCCCCCCCCmCC___ | 6
> 7| __LCCCCCCCCmCCCCCCCCCCCCCC___ | 7
> 8|__CCCCCCCCCCCCCCCCCCCCCCmCC__ ______ | 8
> 9| ___--CCCCCCCCCCCCCCC___ ___CCCCCCCC| 9
> 10| ____--CCCCCCCC___ __CCCCCCCCCCCCCCCCCC___ | 10
> 11| ___LCCCCCCCCmCCL__ ____| 11
> 13|CCCCCCCCCCCCCCC__ __________ | 13
> 14| __________ __CCCCCCCC| 14
> 15| ______ __CCCCCCCCmCCCCCCCCCCCC| 15
> 16|CCCCCCC+__ ____-CCCCCCmCC+__ | 16
> 18| _______ __CCCCCCCCmCCCCCCCCCCCC| 18
> 19| ___CCCCCCCCCCCCCCC+__ ___-CCCCCCCC| 19
> 20|CC+__ ____________ | 20
> 21| __CCCCCCCCCCCCCCmCCCCCCCCCC__| 21
> 22| ___ __LCCmCCCCCCCCCCCC| 22
> 23|CCCCCCCCCC___ ______ | 23
> 24|_ __CCCmCCCCCCCCCCCCC__ | 24
> 26| ___-CCCCCCCCCmCCC___ __CCCCCCCCmCCCCCC___ | 26
> 27|CCCCCCCCCCCCCCCCCCCCCC__ ___ | 27
> 28| __LCCCCCCCCCCCCCCCCmCCCCCCC___ ____| 28
> 29| ____-CCCCCCCCCCCmCC___ ___LCCCCCCCCmCCCC___ | 29
> 30| ____CCCCCCCCCCCCCCCCCC+__ | 30
> -dn| |-dn
> +dn| 11 1 11 11 1 11 |+dn
> +20|555668878777866678777678886556666667765466655566654568887889977777888788|+20
> Pos|oooooooooo oooooooo o ooo o ooo oo o |Pos
> Clk| - |Clk
> +|-----------|-----------|-----------|-----------|-----------|-----------+
> 20:56:00.000 14:50:15.000
> 2005 Aug 11 2005 Aug 12
>
> *********************
> QC of RINEX file(s) : BDZG2230.05o
> input RnxNAV file(s) : BDZG2230.05n
> *********************
>
> Time of start of window : 2005 Aug 11 20:56:00.000
> Time of end of window : 2005 Aug 12 14:50:15.000
> Time line window length : 17.90 hour(s), ticked every 3.0 hour(s)
> antenna WGS 84 (xyz) : -1926781.8487 -3725151.3820 4790051.8504 (m)
> antenna WGS 84 (geo) : N 48 deg 59' 12.15" W 117 deg 20' 58.65"
> antenna WGS 84 (geo) : 48.986709 deg 242.650374 deg
> WGS 84 height : 613.4981 m
> |qc - header| position : 25 m
> Observation interval : 15.0000 seconds
> Total satellites w/ obs : 27
> NAVSTAR GPS SVs w/o OBS : 12 17 25 31 32
> NAVSTAR GPS SVs w/o NAV :
> Rx tracking capability : 12 SVs
> Poss. # of obs epochs : 4298
> Epochs w/ observations : 4298
> Possible obs > 0.0 deg: 43325
> Possible obs > 20.0 deg: 27117
> Complete obs > 20.0 deg: 26783
> Deleted obs > 20.0 deg: 52
> Moving average MP1 : 0.356626 m
> Moving average MP2 : 0.475079 m
> Points in MP moving avg : 50
> No. of Rx clock offsets : 2
> Total Rx clock drift : 0.000000 ms
> Rate of Rx clock drift : 0.000 ms/hr
> Avg time between resets : 537.125 minute(s)
> Report gap > than : 10.00 minute(s)
> epochs w/ msec clk slip : 79
> other msec mp events : 27 (: 1160) {expect <= 1:50}
> IOD signifying a slip : >400.0 cm/minute
> IOD slips < 20.0 deg* : 0
> IOD slips > 20.0 deg : 0
> IOD or MP slips < 20.0*: 66
> IOD or MP slips > 20.0 : 514
> * or unknown elevation
> first epoch last epoch hrs dt #expt #have % mp1 mp2 o/slps
> SUM 05 8 11 20:56 05 8 12 14:50 17.90 15 27117 26783 99 0.36 0.48 52
>
>
>
> Processing parameters are:
> Receiver tracking capability : 12 SVs
> Maximum ionospheric rate (L1) : 400.00 cm/min
> Report data gap greater than : 10.00 min
> Expected rms level of P1 multipath : 50.00 cm
> Expected rms level of P2 multipath : 65.00 cm
> Multipath slip sigma threshold : 4.00 cm
> % increase in MP rms for C/A | A/S : 100.00 %
> Points in MP moving averages : 50
> Minimum signal to noise for L1 : 0
> Minimum signal to noise for L2 : 0
> Elevation mask (cutoff) : 20.00 degrees
> Elevation comparison threshold : 25.00 degrees
> Orbit path spline fit sample time : 10 min
> SVs w/ code data for position try : 5
> Width of ASCII summary plot : 72
> Data indicators on summary plot : yes
> Do ionospheric observable : yes
> Do ionospheric derivative : yes
> Do high-pass ionosphere observable : no
> Do multipath observables : yes
> Do 1-ms receiver clock slips : yes
> Tolerance for 1-ms clock slips : 1.00e-02 ms
> Do receiver LLI slips : yes
> Do plot file(s) : no
>
> Observations start : 2005 Aug 11 20:56:00.000
> Observations end : 2005 Aug 12 14:50:15.000
> Observation interval : 15.0000 second(s)
>
> SV #+hor <ele> #+mask <ele> #reprt #compl L1 L2 P1 P2 CA
> --- ------ ----- ------ ----- ------ ------ ------ ------ ------ ------ ------
> G 1 654 8.37 105 25.87 105 105 105 105 0 105 105
> G 2 1788 35.35 1130 51.15 1130 1130 1130 1130 0 1130 1130
> G 3 1969 25.82 1379 32.09 1355 1347 1355 1347 0 1347 1355
> G 4 1559 31.54 992 44.68 992 992 992 992 0 992 992
> G 5 1521 38.57 1104 49.45 1104 1104 1104 1104 0 1104 1104
> G 6 1671 41.13 1221 52.89 1221 1221 1221 1221 0 1221 1221
> G 7 1660 42.19 1242 53.07 1242 1242 1242 1242 0 1242 1242
> G 8 1979 36.48 1263 53.49 1263 1263 1263 1263 0 1263 1263
> G 9 1915 26.84 1229 36.24 1211 1203 1209 1203 0 1203 1211
> G10 2286 25.57 1351 36.21 1292 1286 1292 1286 0 1286 1292
> G11 1222 15.97 477 25.17 477 477 477 477 0 477 477
> G13 1503 35.17 804 60.23 804 804 804 804 0 804 804
> G14 1101 19.69 393 43.65 393 393 393 393 0 393 393
> G15 1643 40.63 1133 56.55 1133 1133 1133 1133 0 1133 1133
> G16 1580 21.26 854 30.64 803 796 803 796 0 796 803
> G18 1704 39.93 1154 56.58 1154 1154 1154 1154 0 1154 1154
> G19 1892 25.20 1230 33.37 1188 1180 1185 1180 0 1180 1188
> G20 953 10.10 83 24.65 83 83 83 83 0 83 83
> G21 1730 43.10 1318 53.48 1318 1318 1318 1318 0 1318 1318
> G22 1206 43.85 854 59.56 854 854 854 854 0 854 854
> G23 1013 28.54 527 50.36 527 527 527 527 0 527 527
> G24 1272 26.88 821 36.46 821 821 821 821 0 821 821
> G26 2292 24.77 1437 33.59 1393 1390 1393 1390 0 1390 1393
> G27 1549 46.17 1229 56.63 1229 1229 1229 1229 0 1229 1229
> G28 1911 39.42 1325 53.69 1325 1325 1325 1325 0 1325 1325
> G29 2340 24.71 1464 33.52 1420 1408 1419 1408 0 1408 1420
> G30 1412 34.62 998 44.94 998 998 998 998 0 998 998
>
> Obs below mask ( 20.00 deg) : 3439
> Obs above mask w/ no L1 : 6
> Obs above mask w/ no L2 : 52
> Obs above mask w/ no P1 | CA : 0
> Obs above mask w/ no P2 : 52
> Obs above mask w/ low L1 S/N : 0
> Obs above mask w/ low L2 S/N : 0
>
> Obs reported w/ code | phase : 30274
> Obs deleted (any reason) : 3491
> Obs complete : 26783
>
> No. of Rx clock offsets : 2
> Total Rx clock drift : 0.000000 ms
> Rate of Rx clock drift : 0.000000 ms/hr
>
> elev (deg) tot slps <ION rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 258 0 0.000000
> 80 - 85 1204 0 0.000000
> 75 - 80 1161 0 0.000000
> 70 - 75 1233 0 0.000000
> 65 - 70 1178 0 0.000000
> 60 - 65 1463 0 0.000000
> 55 - 60 1483 0 0.000000
> 50 - 55 1724 0 0.000000
> 45 - 50 1814 0 0.000000
> 40 - 45 2756 0 0.000000
> 35 - 40 3124 0 0.000000
> 30 - 35 2869 0 0.000000
> 25 - 30 3649 0 0.000000
> 20 - 25 2858 0 0.000000
> 15 - 20 2508 0 0.000000
> 10 - 15 844 0 0.000000
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> MP1 RMS summary (per SV):
> slips L1 rx L2 rx slips L1 rx L2 rx
> SV obs>20 # del <elev> MP1 rms [m] < 25 < 25 < 25 > 25 > 25 > 25
> G 1 105 0 25.87 0.415573 1 0 0 1 0 0
> G 2 1130 0 51.15 0.302490 2 0 0 20 0 0
> G 3 1355 8 32.35 0.429225 4 2 1 21 0 0
> G 4 992 0 44.68 0.318261 2 0 0 17 1 1
> G 5 1104 0 49.45 0.279049 2 0 0 19 0 0
> G 6 1221 0 52.89 0.315651 2 0 0 22 0 0
> G 7 1242 0 53.07 0.293642 2 0 0 22 0 0
> G 8 1263 0 53.49 0.318244 1 0 0 22 0 0
> G 9 1211 8 36.61 0.370891 3 4 1 20 0 0
> G10 1292 6 36.99 0.401659 4 1 1 21 0 0
> G11 477 0 25.17 0.444246 4 0 0 5 0 0
> G13 804 0 60.26 0.323570 1 0 0 14 0 0
> G14 393 0 43.65 0.341203 1 0 0 7 0 0
> G15 1133 0 56.55 0.296207 1 0 0 21 0 0
> G16 803 7 31.33 0.422944 3 1 1 12 0 0
> G18 1154 0 56.58 0.290363 1 0 0 22 0 0
> G19 1188 8 33.85 0.459971 2 4 1 20 0 0
> G20 83 0 25.38 0.370142 1 0 0 1 0 0
> G21 1318 0 53.48 0.399163 2 0 0 24 0 0
> G22 854 0 59.56 0.256775 1 0 0 16 0 0
> G23 527 0 50.38 0.321793 1 0 0 9 0 0
> G24 821 0 36.46 0.511669 2 0 0 13 0 0
> G26 1393 3 34.02 0.436167 3 1 1 24 0 0
> G27 1229 0 56.67 0.353435 1 0 0 22 0 0
> G28 1325 0 53.69 0.312272 2 0 0 23 0 0
> G29 1420 12 34.00 0.428193 3 1 0 24 0 1
> G30 998 0 44.94 0.270782 2 0 0 18 0 0
>
> mean MP1 rms : 0.356634 m
> total mean elevation : 45.75 degrees
> # MP1 obs > 20 : 26783
> # qc MP1 slips < 25 : 54
> # Rvr L1 slips < 25 : 14
> # Rvr L2 slips < 25 : 6
> # qc MP1 slips > 25 : 460
> # Rvr L1 slips > 25 : 1
> # Rvr L2 slips > 25 : 2
>
> elev (deg) tot slps <MP1 rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 258 7 0.197475 ####=
> 80 - 85 1204 22 0.186569 ###|
> 75 - 80 1161 21 0.187243 ###|
> 70 - 75 1233 23 0.193741 ###|
> 65 - 70 1178 23 0.207612 ###|
> 60 - 65 1463 29 0.210543 ###|
> 55 - 60 1483 30 0.230830 ####|
> 50 - 55 1724 35 0.260067 ####|
> 45 - 50 1814 32 0.295831 ###|||
> 40 - 45 2756 56 0.332193 ####|||
> 35 - 40 3124 61 0.376016 ###|||||
> 30 - 35 2869 51 0.424698 ###|||||
> 25 - 30 3649 70 0.479822 ###|||||||
> 20 - 25 2858 54 0.542062 ###||||||||
> 15 - 20 2508 51 0.607967 ####||||||||
> 10 - 15 844 15 0.605434 ###|||||||||
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> MP2 RMS summary (per SV):
> slips L1 rx L2 rx slips L1 rx L2 rx
> SV obs>20 # del <elev> MP2 rms [m] < 25 < 25 < 25 > 25 > 25 > 25
> G 1 105 0 25.87 0.616326 1 0 0 1 0 0
> G 2 1130 0 51.15 0.379312 2 0 0 20 0 0
> G 3 1355 8 32.35 0.624168 4 2 1 21 0 0
> G 4 992 0 44.68 0.555455 2 0 0 17 1 1
> G 5 1104 0 49.45 0.468890 2 0 0 19 0 0
> G 6 1221 0 52.89 0.444607 2 0 0 22 0 0
> G 7 1242 0 53.07 0.376923 2 0 0 22 0 0
> G 8 1263 0 53.49 0.392148 1 0 0 22 0 0
> G 9 1211 8 36.61 0.582384 3 4 1 20 0 0
> G10 1292 6 36.99 0.504169 4 1 1 21 0 0
> G11 477 0 25.17 0.836098 4 0 0 5 0 0
> G13 804 0 60.26 0.342345 1 0 0 14 0 0
> G14 393 0 43.65 0.395373 1 0 0 7 0 0
> G15 1133 0 56.55 0.426250 1 0 0 21 0 0
> G16 803 7 31.33 0.563354 3 1 1 12 0 0
> G18 1154 0 56.58 0.303084 1 0 0 22 0 0
> G19 1188 8 33.85 0.660394 2 4 1 20 0 0
> G20 83 0 25.38 0.412748 1 0 0 1 0 0
> G21 1318 0 53.48 0.355994 2 0 0 24 0 0
> G22 854 0 59.56 0.253225 1 0 0 16 0 0
> G23 527 0 50.38 0.444301 1 0 0 9 0 0
> G24 821 0 36.46 0.576841 2 0 0 13 0 0
> G26 1393 3 34.02 0.644836 3 1 1 24 0 0
> G27 1229 0 56.67 0.361340 1 0 0 22 0 0
> G28 1325 0 53.69 0.386642 2 0 0 23 0 0
> G29 1420 12 34.00 0.608958 3 1 0 24 0 1
> G30 998 0 44.94 0.439689 2 0 0 18 0 0
>
> mean MP2 rms : 0.475086 m
> total mean elevation : 45.75 degrees
> # MP2 obs > 20 : 26783
> # qc MP2 slips < 25 : 54
> # Rvr L1 slips < 25 : 14
> # Rvr L2 slips < 25 : 6
> # qc MP2 slips > 25 : 460
> # Rvr L1 slips > 25 : 1
> # Rvr L2 slips > 25 : 2
>
> elev (deg) tot slps <MP2 rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 258 7 0.176154 ####=
> 80 - 85 1204 22 0.193005 ###|
> 75 - 80 1161 21 0.194765 ###|
> 70 - 75 1233 23 0.215510 ###|
> 65 - 70 1178 23 0.232657 ###||
> 60 - 65 1463 29 0.240745 ###||
> 55 - 60 1483 30 0.304027 ####||
> 50 - 55 1724 35 0.408210 ####||||
> 45 - 50 1814 32 0.373817 ###||||
> 40 - 45 2756 56 0.448777 ####|||||
> 35 - 40 3124 61 0.541656 ###||||||||
> 30 - 35 2869 51 0.564331 ###||||||||
> 25 - 30 3649 70 0.642548 ###||||||||||
> 20 - 25 2858 54 0.753844 ###||||||||||||
> 15 - 20 2508 51 0.762864 ####|||||||||||
> 10 - 15 844 15 0.672284 ###||||||||||
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> S/N L1 summary (per elevation bin):
> elev (deg) tot SN1 sig mean 0|5 1|0
> 85 - 90 258 0.632 7.097 ###|||||||||||||||||||||||||
> 80 - 85 1205 0.415 7.061 ##||||||||||||||||||||||||||
> 75 - 80 1161 0.405 7.083 ##||||||||||||||||||||||||||
> 70 - 75 1233 0.488 7.222 ##|||||||||||||||||||||||||||
> 65 - 70 1178 0.462 7.193 ##|||||||||||||||||||||||||||
> 60 - 65 1464 0.441 7.184 ##|||||||||||||||||||||||||||
> 55 - 60 1483 0.372 7.064 #|||||||||||||||||||||||||||
> 50 - 55 1725 0.318 6.969 #|||||||||||||||||||||||||||
> 45 - 50 1814 0.372 6.903 #|||||||||||||||||||||||||||
> 40 - 45 2756 0.400 6.825 ##|||||||||||||||||||||||||
> 35 - 40 3124 0.503 6.616 ##||||||||||||||||||||||||
> 30 - 35 2870 0.508 6.290 ##|||||||||||||||||||||||
> 25 - 30 3653 0.486 5.983 ##||||||||||||||||||||||
> 20 - 25 2905 0.698 5.741 ###||||||||||||||||||||
> 15 - 20 2521 0.663 5.506 ###|||||||||||||||||||
> 10 - 15 903 1.192 4.792 #####||||||||||||||
> 5 - 10 0 0.000 0.000
> 0 - 5 0 0.000 0.000
> < 0 0 0.000 0.000
>
> S/N L2 summary (per elevation bin):
> elev (deg) tot SN2 sig mean 0|5 1|0
> 85 - 90 258 0.560 8.965 ##||||||||||||||||||||||||||||||||||
> 80 - 85 1205 0.259 8.993 #|||||||||||||||||||||||||||||||||||
> 75 - 80 1161 0.277 8.985 #|||||||||||||||||||||||||||||||||||
> 70 - 75 1233 0.259 8.991 #|||||||||||||||||||||||||||||||||||
> 65 - 70 1178 0.324 8.954 #|||||||||||||||||||||||||||||||||||
> 60 - 65 1464 0.347 8.923 #|||||||||||||||||||||||||||||||||||
> 55 - 60 1483 0.546 8.531 ##||||||||||||||||||||||||||||||||
> 50 - 55 1725 0.459 8.216 ##|||||||||||||||||||||||||||||||
> 45 - 50 1814 0.272 8.035 #|||||||||||||||||||||||||||||||
> 40 - 45 2756 0.152 7.997 #|||||||||||||||||||||||||||||||
> 35 - 40 3124 0.285 7.932 #|||||||||||||||||||||||||||||||
> 30 - 35 2870 0.500 7.359 ##|||||||||||||||||||||||||||
> 25 - 30 3651 0.295 7.034 #|||||||||||||||||||||||||||
> 20 - 25 2861 0.362 6.895 #|||||||||||||||||||||||||||
> 15 - 20 2509 0.522 6.424 ##||||||||||||||||||||||||
> 10 - 15 861 0.532 6.035 ##||||||||||||||||||||||
> 5 - 10 0 0.000 0.000
> 0 - 5 0 0.000 0.000
> < 0 0 0.000 0.000
>
>
> ------------------------------------------------------------------------
>
> SV+------------------------------------------------------------------------+ SV
> 1|CCCCCCCCCCC-_ ______ _-CCCCCCCCC| 1
> 2| ________ __CCCCmCCCCCCCoCCC-_ | 2
> 3| __CCCCmoCCCC-_ _-CCCmCCCoCCC-_ | 3
> 4| __---CCCI__ _-CCCCCCCmCCCCC--_ | 4
> 5|---__ __-CCCCmCCCCCCCoC-__ ___---| 5
> 6| ______ _-CCCCCoCCCCCoCCCC-__ | 6
> 7|_____ _-CCCCCCCCCCCCCCmCC-_ ____| 7
> 8| __-CCmoCCCCCCCCCCCCC-_ ____ | 8
> 9| _--CCCCCCCCmCC--_ __-CCoCCCC-__ | 9
> 10| __---oCCCCC__ _-CCCCCoCCCCCoC-_ | 10
> 11|CCCCCCC-_ __-CCCCCCCC-__ _--CCCCCCC| 11
> 13| _-CCCCCCCCCCmoCCCCC_ _______ | 13
> 14|CCCCCC-_ _______ __CCCoCCCCCCCCC| 14
> 15| ____ _-CCoCCCCCmCCCoCCCC-_ | 15
> 16| _mCCCCCCCCCCCm-_ __--CoCCCCC-_ | 16
> 18| ______ _-CCoCCCCCmCCCoCCCC-_ | 18
> 19|_ _-CmoCCCCCCCC-_ _--CCCoCCCCCC__ | 19
> 20|CCCCCCCCCCCCCCC-_ __-----__ _-CCC| 20
> 21| __-oCCCCCoCCCCCmCCCoC_ | 21
> 22|CC-_ __ _-CCCCmCCCoCCCCCCCCC| 22
> 23| _-CCCCCCCCCCCCCCmoC-_ ____ __| 23
> 24|_--CCCCCCCCC__ _-CCCCCCCCCCmC-_ _--| 24
> 26| __-CCCCCCCCCC-_ _-CCoCCCCCmCC__ | 26
> 27| __-CCCCCCmoCCCCCCCCCC__ ___ | 27
> 28| _--CCCCCCCCCCCCCCCCC-_ ___ | 28
> 29| _--CCCCCCCCCC-_ _-CCCoCCCCCm-_ | 29
> 30|-CCCCC-__ __--CCCCCCCoCCCC-__ __-CC| 30
> 31|____ _-----------------__ ______| 31
> 25|CCCCCCCCCCCC-_ __-----___ __CCCCCC| 25
> 12|---__ __----------------__ ___---| 12
> 32|-------__ __---------------__ __---| 32
> -dn|2311111 1 12111112111123332222233322221 1 1 132|-dn
> +dn|455312431c112122112 21353122222234334542553344324662 221 3241 1111231445|+dn
> +10|abb99ab988997678899899aa999999aaa9aaaba9aa9999989bba89a99a9a989999a96abb|+10
> Pos|ooooooo o o oo ooo oo oo ooo |Pos
> Clk| ^ + + + + + |Clk
> +----|-------|--------|--------|--------|-------|--------|--------|------+
> 16:33:00.000 17:21:45.005
> 2005 Aug 10 2005 Aug 11
>
> *********************
> QC of RINEX file(s) : BOND222.05o
> input RnxNAV file(s) : brdc2220.05n
> BOND222.05n
> *********************
>
> Time of start of window : 2005 Aug 10 16:33:00.000
> Time of end of window : 2005 Aug 11 17:21:45.005
> Time line window length : 24.81 hour(s), ticked every 3.0 hour(s)
> antenna WGS 84 (xyz) : -1926665.8386 -3725211.6035 4789967.4255 (m)
> antenna WGS 84 (geo) : N 48 deg 59' 10.36" W 117 deg 20' 52.22"
> antenna WGS 84 (geo) : 48.986210 deg 242.652160 deg
> WGS 84 height : 549.9227 m
> |qc - header| position : 170 m
> Observation interval : 15.0000 seconds
> Total satellites w/ obs : 28
> NAVSTAR GPS SVs w/o OBS : 12 17 31 32
> NAVSTAR GPS SVs w/o NAV :
> Rx tracking capability : 12 SVs
> Poss. # of obs epochs : 5956
> Epochs w/ observations : 5956
> Possible obs > 0.0 deg: 62105
> Possible obs > 10.0 deg: 47168
> Complete obs > 10.0 deg: 41817
> Deleted obs > 10.0 deg: 177
> Moving average MP1 : 0.326767 m
> Moving average MP2 : 0.455630 m
> Points in MP moving avg : 50
> No. of Rx clock offsets : 5
> Total Rx clock drift : +5.000000 ms
> Rate of Rx clock drift : +0.202 ms/hr
> Avg time between resets : 297.750 minute(s)
> Report gap > than : 10.00 minute(s)
> epochs w/ msec clk slip : 77
> other msec mp events : 48 (: 1191) {expect <= 1:50}
> IOD signifying a slip : >400.0 cm/minute
> IOD slips < 10.0 deg* : 0
> IOD slips > 10.0 deg : 4
> IOD or MP slips < 10.0*: 0
> IOD or MP slips > 10.0 : 595
> * or unknown elevation
> first epoch last epoch hrs dt #expt #have % mp1 mp2 o/slps
> SUM 05 8 10 16:33 05 8 11 17:21 24.81 15 47168 41817 89 0.33 0.46 70
>
>
>
> Processing parameters are:
> Receiver tracking capability : 12 SVs
> Maximum ionospheric rate (L1) : 400.00 cm/min
> Report data gap greater than : 10.00 min
> Expected rms level of P1 multipath : 50.00 cm
> Expected rms level of P2 multipath : 65.00 cm
> Multipath slip sigma threshold : 4.00 cm
> % increase in MP rms for C/A | A/S : 100.00 %
> Points in MP moving averages : 50
> Minimum signal to noise for L1 : 0
> Minimum signal to noise for L2 : 0
> Elevation mask (cutoff) : 10.00 degrees
> Elevation comparison threshold : 25.00 degrees
> Orbit path spline fit sample time : 10 min
> SVs w/ code data for position try : 5
> Width of ASCII summary plot : 72
> Data indicators on summary plot : yes
> Do ionospheric observable : yes
> Do ionospheric derivative : yes
> Do high-pass ionosphere observable : no
> Do multipath observables : yes
> Do 1-ms receiver clock slips : yes
> Tolerance for 1-ms clock slips : 1.00e-02 ms
> Do receiver LLI slips : yes
> Do plot file(s) : no
>
> Observations start : 2005 Aug 10 16:33:00.000
> Observations end : 2005 Aug 11 17:21:45.005
> Observation interval : 15.0000 second(s)
>
> SV #+hor <ele> #+mask <ele> #reprt #compl L1 L2 P1 P2 CA
> --- ------ ----- ------ ----- ------ ------ ------ ------ ------ ------ ------
> G 1 2273 40.20 1703 52.52 1639 1639 1639 1639 0 1639 1639
> G 2 2126 30.81 1330 45.71 1267 1267 1267 1267 0 1267 1267
> G 3 2319 23.18 1854 27.75 1620 1619 1620 1619 0 1619 1620
> G 4 2256 26.28 1761 32.24 1376 1356 1367 1356 0 1360 1376
> G 5 2368 27.67 1671 36.85 1244 1244 1244 1244 0 1244 1244
> G 6 2058 34.01 1427 47.41 1363 1362 1363 1362 0 1362 1363
> G 7 2291 31.51 1446 47.69 1384 1384 1384 1384 0 1384 1384
> G 8 1979 36.48 1469 48.09 1407 1406 1406 1406 0 1406 1407
> G 9 2260 24.90 1805 29.92 1573 1562 1570 1562 0 1564 1573
> G10 2286 25.57 1832 30.67 1527 1514 1524 1514 0 1514 1527
> G11 2527 24.77 2044 29.45 1813 1802 1811 1802 0 1803 1813
> G13 2126 33.21 1400 47.82 1334 1328 1333 1328 0 1329 1334
> G14 2349 34.75 1613 48.28 1550 1550 1550 1550 0 1550 1550
> G15 1959 36.76 1463 48.21 1402 1401 1401 1401 0 1401 1402
> G16 2311 24.82 1852 29.74 1551 1540 1549 1540 0 1540 1551
> G18 2034 35.82 1462 48.52 1401 1401 1401 1401 0 1401 1401
> G19 2399 23.36 1886 28.44 1646 1634 1643 1634 0 1635 1646
> G20 2398 28.96 1817 36.54 1446 1442 1446 1442 0 1442 1446
> G21 1730 43.10 1521 48.34 1458 1458 1458 1458 0 1458 1458
> G22 2097 37.51 1715 45.12 1621 1621 1621 1621 0 1621 1621
> G23 2088 35.00 1472 48.25 1407 1406 1407 1406 0 1406 1407
> G24 2549 23.05 1989 28.14 1637 1610 1632 1610 0 1610 1637
> G26 2292 24.77 1861 29.36 1630 1611 1627 1611 0 1611 1630
> G27 1888 40.73 1555 48.76 1494 1493 1493 1493 0 1493 1494
> G28 1912 39.40 1528 48.55 1468 1468 1468 1468 0 1468 1468
> G29 2340 24.71 1901 29.27 1661 1645 1661 1645 0 1645 1661
> G30 2443 25.30 1919 30.78 1635 1624 1632 1624 0 1625 1635
> G25 2447 30.76 1872 38.61 1440 1430 1439 1430 0 1430 1440
> G31 2314 28.29 1320 45.13 0 0 0 0 0 0 0
> G12 2368 27.67 1671 36.85 0 0 0 0 0 0 0
> G32 2443 25.30 1919 30.78 0 0 0 0 0 0 0
>
> Obs below mask ( 10.00 deg) : 0
> Obs above mask w/ no L1 : 38
> Obs above mask w/ no L2 : 177
> Obs above mask w/ no P1 | CA : 0
> Obs above mask w/ no P2 : 167
> Obs above mask w/ low L1 S/N : 0
> Obs above mask w/ low L2 S/N : 0
>
> Obs reported w/ code | phase : 41994
> Obs deleted (any reason) : 177
> Obs complete : 41817
>
> No. of Rx clock offsets : 5
> Total Rx clock drift : +5.000000 ms
> Rate of Rx clock drift : +0.201511 ms/hr
>
> elev (deg) tot slps <ION rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 421 0 0.000000
> 80 - 85 1645 0 0.000000
> 75 - 80 1440 0 0.000000
> 70 - 75 1702 0 0.000000
> 65 - 70 1652 0 0.000000
> 60 - 65 1984 0 0.000000
> 55 - 60 2042 0 0.000000
> 50 - 55 2455 0 0.000000
> 45 - 50 2764 0 0.000000
> 40 - 45 3622 0 0.000000
> 35 - 40 3791 0 0.000000
> 30 - 35 4000 0 0.000000
> 25 - 30 4700 0 0.000000
> 20 - 25 4052 3 0.000000
> 15 - 20 4163 0 0.000000
> 10 - 15 1356 1 0.000000
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> MP1 RMS summary (per SV):
> slips L1 rx L2 rx slips L1 rx L2 rx
> SV obs>10 # del <elev> MP1 rms [m] < 25 < 25 < 25 > 25 > 25 > 25
> G 1 1639 0 54.12 0.247017 4 1 1 21 0 0
> G 2 1267 0 47.47 0.277225 4 1 1 12 0 0
> G 3 1620 1 29.79 0.409238 8 4 3 15 0 0
> G 4 1376 20 37.53 0.350258 8 13 4 11 0 0
> G 5 1244 0 45.81 0.265145 3 1 1 12 0 0
> G 6 1363 1 49.18 0.311319 3 1 1 13 0 0
> G 7 1384 0 49.37 0.264709 3 1 1 17 0 0
> G 8 1407 1 49.78 0.302090 4 0 1 18 0 0
> G 9 1573 11 32.48 0.391693 5 10 5 15 0 0
> G10 1527 13 33.98 0.351291 6 4 2 13 0 0
> G11 1813 11 31.62 0.391164 11 4 3 19 0 0
> G13 1334 6 49.82 0.296530 4 3 0 18 0 0
> G14 1550 0 49.79 0.274458 5 1 1 17 0 0
> G15 1402 1 49.89 0.269789 3 0 1 14 0 0
> G16 1551 11 32.77 0.391002 8 7 2 16 0 0
> G18 1401 0 50.19 0.248126 4 1 1 13 0 0
> G19 1646 12 30.60 0.404827 8 9 2 17 0 0
> G20 1446 4 42.95 0.271807 5 1 1 18 0 0
> G21 1458 0 49.98 0.319668 2 1 1 15 0 0
> G22 1621 0 47.11 0.296862 7 1 1 15 0 0
> G23 1407 1 50.00 0.298309 5 1 1 18 0 0
> G24 1637 27 31.29 0.430253 6 11 3 19 0 0
> G26 1630 19 31.65 0.381813 6 6 3 17 0 0
> G27 1494 1 50.36 0.310013 4 0 1 20 0 0
> G28 1468 0 50.12 0.275685 3 1 1 20 0 0
> G29 1661 16 31.56 0.396694 6 4 2 17 0 0
> G30 1635 11 34.15 0.376219 9 6 3 11 0 0
> G25 1440 10 46.71 0.259584 3 3 1 19 0 0
>
> mean MP1 rms : 0.326765 m
> total mean elevation : 42.07 degrees
> # MP1 obs > 10 : 41817
> # qc MP1 slips < 25 : 147
> # Rvr L1 slips < 25 : 96
> # Rvr L2 slips < 25 : 48
> # qc MP1 slips > 25 : 450
> # Rvr L1 slips > 25 : 0
> # Rvr L2 slips > 25 : 0
>
> elev (deg) tot slps <MP1 rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 421 6 0.096574 ##
> 80 - 85 1645 22 0.106884 ##
> 75 - 80 1440 21 0.119383 ##
> 70 - 75 1702 23 0.137318 ##|
> 65 - 70 1652 26 0.143340 ###
> 60 - 65 1984 25 0.161469 ##|
> 55 - 60 2042 32 0.220311 ###|
> 50 - 55 2455 32 0.211627 ##||
> 45 - 50 2764 42 0.230028 ###||
> 40 - 45 3622 49 0.247781 ##|||
> 35 - 40 3791 51 0.285093 ##||||
> 30 - 35 4000 58 0.323918 ##||||
> 25 - 30 4700 63 0.429060 ##|||||||
> 20 - 25 4052 61 0.483025 ###|||||||
> 15 - 20 4163 62 0.475864 ##||||||||
> 10 - 15 1356 24 0.538153 ###||||||||
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> MP2 RMS summary (per SV):
> slips L1 rx L2 rx slips L1 rx L2 rx
> SV obs>10 # del <elev> MP2 rms [m] < 25 < 25 < 25 > 25 > 25 > 25
> G 1 1639 0 54.12 0.390078 4 1 1 21 0 0
> G 2 1267 0 47.47 0.379848 4 1 1 12 0 0
> G 3 1620 1 29.79 0.525229 8 4 3 15 0 0
> G 4 1376 20 37.53 0.472679 8 13 4 11 0 0
> G 5 1244 0 45.81 0.390704 3 1 1 12 0 0
> G 6 1363 1 49.18 0.417641 3 1 1 13 0 0
> G 7 1384 0 49.37 0.382889 3 1 1 17 0 0
> G 8 1407 1 49.78 0.466941 4 0 1 18 0 0
> G 9 1573 11 32.48 0.488273 5 10 5 15 0 0
> G10 1527 13 33.98 0.460632 6 4 2 13 0 0
> G11 1813 11 31.62 0.539369 9 4 3 19 0 0
> G13 1334 6 49.82 0.393785 4 3 0 18 0 0
> G14 1550 0 49.79 0.361832 5 1 1 17 0 0
> G15 1402 1 49.89 0.467111 3 0 1 14 0 0
> G16 1551 11 32.77 0.540997 8 7 2 16 0 0
> G18 1401 0 50.19 0.360987 4 1 1 13 0 0
> G19 1646 12 30.60 0.541567 7 9 2 17 0 0
> G20 1446 4 42.95 0.525208 5 1 1 18 0 0
> G21 1458 0 49.98 0.375648 2 1 1 15 0 0
> G22 1621 0 47.11 0.411619 7 1 1 15 0 0
> G23 1407 1 50.00 0.495683 5 1 1 18 0 0
> G24 1637 27 31.29 0.535453 6 11 3 19 0 0
> G26 1630 19 31.65 0.555615 6 6 3 17 0 0
> G27 1494 1 50.36 0.436557 4 0 1 20 0 0
> G28 1468 0 50.12 0.408704 3 1 1 20 0 0
> G29 1661 16 31.56 0.551410 6 4 2 17 0 0
> G30 1635 11 34.15 0.435108 9 6 3 11 0 0
> G25 1440 10 46.71 0.359390 3 3 1 19 0 0
>
> mean MP2 rms : 0.455628 m
> total mean elevation : 42.07 degrees
> # MP2 obs > 10 : 41817
> # qc MP2 slips < 25 : 144
> # Rvr L1 slips < 25 : 96
> # Rvr L2 slips < 25 : 48
> # qc MP2 slips > 25 : 450
> # Rvr L1 slips > 25 : 0
> # Rvr L2 slips > 25 : 0
>
> elev (deg) tot slps <MP2 rms, m> 5=% 1|m 15=% 2|m
> 85 - 90 421 6 0.274052 ##|||
> 80 - 85 1645 22 0.252520 ##|||
> 75 - 80 1440 21 0.242705 ##|||
> 70 - 75 1702 23 0.255253 ##|||
> 65 - 70 1652 26 0.270874 ###||
> 60 - 65 1984 25 0.282877 ##||||
> 55 - 60 2042 32 0.313236 ###|||
> 50 - 55 2455 32 0.359850 ##|||||
> 45 - 50 2764 42 0.385642 ###|||||
> 40 - 45 3622 49 0.399724 ##||||||
> 35 - 40 3791 51 0.423812 ##||||||
> 30 - 35 4000 58 0.432227 ##|||||||
> 25 - 30 4700 63 0.487217 ##||||||||
> 20 - 25 4052 58 0.654272 ##|||||||||||
> 15 - 20 4163 62 0.657679 ##|||||||||||
> 10 - 15 1356 24 0.711829 ###|||||||||||
> 5 - 10 0 0 0.000000
> 0 - 5 0 0 0.000000
> < 0 0 0 0.000000
>
> S/N L1 summary (per elevation bin):
> elev (deg) tot SN1 sig mean 0|5 1|0
> 85 - 90 421 0.604 7.637 ##|||||||||||||||||||||||||||||
> 80 - 85 1645 0.526 7.587 ##||||||||||||||||||||||||||||
> 75 - 80 1441 0.526 7.611 ##||||||||||||||||||||||||||||
> 70 - 75 1702 0.514 7.636 ##|||||||||||||||||||||||||||||
> 65 - 70 1652 0.503 7.677 ##|||||||||||||||||||||||||||||
> 60 - 65 1985 0.472 7.736 ##|||||||||||||||||||||||||||||
> 55 - 60 2042 0.477 7.723 ##|||||||||||||||||||||||||||||
> 50 - 55 2455 0.520 7.551 ##||||||||||||||||||||||||||||
> 45 - 50 2765 0.530 7.504 ##||||||||||||||||||||||||||||
> 40 - 45 3623 0.504 7.285 ##|||||||||||||||||||||||||||
> 35 - 40 3791 0.398 7.002 ##||||||||||||||||||||||||||
> 30 - 35 4000 0.448 6.826 ##|||||||||||||||||||||||||
> 25 - 30 4701 0.534 6.562 ##||||||||||||||||||||||||
> 20 - 25 4135 1.018 6.138 ####|||||||||||||||||||||
> 15 - 20 4185 0.692 5.895 ###|||||||||||||||||||||
> 10 - 15 1413 1.290 5.262 #####||||||||||||||||
> 5 - 10 0 0.000 0.000
> 0 - 5 0 0.000 0.000
> < 0 0 0.000 0.000
>
> S/N L2 summary (per elevation bin):
> elev (deg) tot SN2 sig mean 0|5 1|0
> 85 - 90 421 0.439 8.979 ##||||||||||||||||||||||||||||||||||
> 80 - 85 1645 0.222 8.995 #|||||||||||||||||||||||||||||||||||
> 75 - 80 1441 0.237 8.994 #|||||||||||||||||||||||||||||||||||
> 70 - 75 1702 0.218 8.995 #|||||||||||||||||||||||||||||||||||
> 65 - 70 1652 0.221 8.995 #|||||||||||||||||||||||||||||||||||
> 60 - 65 1985 0.202 8.995 #|||||||||||||||||||||||||||||||||||
> 55 - 60 2042 0.199 8.996 #|||||||||||||||||||||||||||||||||||
> 50 - 55 2455 0.182 8.996 #|||||||||||||||||||||||||||||||||||
> 45 - 50 2765 0.171 8.997 #|||||||||||||||||||||||||||||||||||
> 40 - 45 3623 0.150 8.997 #|||||||||||||||||||||||||||||||||||
> 35 - 40 3791 0.324 8.905 #|||||||||||||||||||||||||||||||||||
> 30 - 35 4000 0.516 8.455 ##||||||||||||||||||||||||||||||||
> 25 - 30 4701 0.378 8.092 ##||||||||||||||||||||||||||||||
> 20 - 25 4058 0.587 7.747 ##|||||||||||||||||||||||||||||
> 15 - 20 4163 0.548 7.331 ##|||||||||||||||||||||||||||
> 10 - 15 1373 0.793 6.844 ###||||||||||||||||||||||||
> 5 - 10 0 0.000 0.000
> 0 - 5 0 0.000 0.000
> < 0 0 0.000 0.000
>
>
> ------------------------------------------------------------------------
>
> SV+------------------------------------------------------------------------+ SV
> 3|CCo mmmmmmmmmmmmmm mmmmmmmm| 3
> 10|CCmm cmmmmmmmmmmmmmo mmmmmm| 10
> 13|CCmo mmmmmmmmmmmmmmmm| 13
> 19|CCmmmm mmmmmmmmmmmmo mmmmmm| 19
> 27|CCmmmmmmo mmmmmmmmmmmm| 27
> 8|CCmmmmmmmmmm mmmmmmmm| 8
> 29|CCmmmmmmmmmmm mmmmmmmmmmm m| 29
> 28|CCmmmmmmmmmmmmmm mmmm| 28
> 26| Cmmmmmmmmmmmm mmmmmmmmmmm | 26
> 7| mmmmmmmmmmmmmmmmmmm | 7
> 11| mmmmmmmmm mmmmmmmmmmmmmmc | 11
> 24| mmmmmmmmmmmmm mmmmmmmmmmmmo | 24
> 9| mmmmmmmmmmmmmmm mmmmmmmm | 9
> 4| mmmmmmmmmmmmmmm mmmmmmmmm | 4
> 5| mmmmmmmmmmmmmmmmmo | 5
> 2| mmmmmmmmmmmmmmmmm mmm | 2
> 30| mmmmmmmmmmmmmmmmm mmmmmo | 30
> 6| cmmmmmmmmmmmmmmmmmmo | 6
> 25| mmmmmm mmmmmmmmmmmmmmmo | 25
> 21| cmmmmmmmmmmmmmmmmmmmo | 21
> 16| mmmmmmmmmmm Lmmmmmmmmmmmmm | 16
> 15| mmmmmmmmmmmmmmmmmmmm | 15
> 18| mmmmmmmmmmmmmmmmmmm | 18
> 22| mmmmmmmmmmmmmmmmmmmo | 22
> 14| mmmmmmmmmmmmmmmmmm | 14
> 1| mmmmmmmmmmmmmmmmmmmo | 1
> 20| mmmmmmmmmmmmmmmmmo | 20
> 23| mmmmmmmmmmmmmmmmmmmm| 23
> Obs|899988788899887777777787777769999999999998999999777888899998998887889889|Obs
> Clk| |Clk
> +---------|--------|--------|--------|--------|--------|--------|--------+
> 00:00:00.000 23:59:30.000
> 2005 Aug 7 2005 Aug 7
>
> *********************
> QC of RINEX file(s) : grmd2190.05o
> *********************
>
> Time of start of window : 2005 Aug 7 00:00:00.000
> Time of end of window : 2005 Aug 7 23:59:30.000
> Time line window length : 23.99 hour(s), ticked every 3.0 hour(s)
> Observation interval : 30.0000 seconds
> Total satellites w/ obs : 28
> NAVSTAR GPS SVs w/o OBS : 12 17 31 32
> Rx tracking capability : 12 SVs
> Poss. # of obs epochs : 2880
> Epochs w/ observations : 2876
> Complete observations : 22583
> Deleted observations : 33
> Moving average MP1 : 0.384458 m
> Moving average MP2 : 0.402351 m
> Points in MP moving avg : 50
> No. of Rx clock offsets : 0
> Total Rx clock drift : 0.000000 ms
> Rate of Rx clock drift : 0.000 ms/hr
> Avg time between resets : Inf minute(s)
> Report gap > than : 10.00 minute(s)
> but < than : 90.00 minute(s)
> epochs w/ msec clk slip : 4
> other msec mp events : 1011 (: 2096) {expect <= 1:50}
> IOD signifying a slip : >400.0 cm/minute
> IOD slips : 3
> IOD or MP slips : 1048
> first epoch last epoch hrs dt #expt #have % mp1 mp2 o/slps
> SUM 05 8 7 00:00 05 8 7 23:59 23.99 30 n/a 22583 n/a 0.38 0.40 22
>
>
>
> Processing parameters are:
> Receiver tracking capability : 12 SVs
> Maximum ionospheric rate (L1) : 400.00 cm/min
> Report data gap greater than : 10.00 min
> but less than : 90.00 min
> Expected rms level of P1 multipath : 50.00 cm
> Expected rms level of P2 multipath : 65.00 cm
> Multipath slip sigma threshold : 4.00 cm
> % increase in MP rms for C/A | A/S : 100.00 %
> Points in MP moving averages : 50
> Minimum signal to noise for L1 : 0
> Minimum signal to noise for L2 : 0
> Width of ASCII summary plot : 72
> Data indicators on summary plot : yes
> Do ionospheric observable : yes
> Do ionospheric derivative : yes
> Do high-pass ionosphere observable : no
> Do multipath observables : yes
> Do 1-ms receiver clock slips : yes
> Tolerance for 1-ms clock slips : 1.00e-02 ms
> Do receiver LLI slips : yes
> Do plot file(s) : no
>
> Observations start : 2005 Aug 7 00:00:00.000
> Observations end : 2005 Aug 7 23:59:30.000
> Observation interval : 30.0000 second(s)
>
> SV #+hor <ele> #+mask <ele> #reprt #compl L1 L2 P1 P2 CA
> --- ------ ----- ------ ----- ------ ------ ------ ------ ------ ------ ------
> G 3* 0 0.00 0 0.00 925 923 925 923 0 923 925
> G 8* 0 0.00 0 0.00 764 763 764 763 0 763 764
> G10* 0 0.00 0 0.00 931 930 931 930 0 930 931
> G13* 0 0.00 0 0.00 735 735 735 735 0 735 735
> G19* 0 0.00 0 0.00 933 933 933 933 0 933 933
> G27* 0 0.00 0 0.00 800 800 800 800 0 800 800
> G28* 0 0.00 0 0.00 773 769 773 769 0 769 773
> G29* 0 0.00 0 0.00 945 944 945 944 0 944 945
> G26* 0 0.00 0 0.00 923 923 923 923 0 923 923
> G 7* 0 0.00 0 0.00 710 710 710 710 0 710 710
> G11* 0 0.00 0 0.00 890 883 890 883 0 883 890
> G24* 0 0.00 0 0.00 946 946 946 946 0 946 946
> G 9* 0 0.00 0 0.00 875 874 875 874 0 874 875
> G 4* 0 0.00 0 0.00 894 892 894 892 0 892 894
> G 5* 0 0.00 0 0.00 680 680 680 680 0 680 680
> G 2* 0 0.00 0 0.00 730 730 730 730 0 730 730
> G30* 0 0.00 0 0.00 812 812 812 812 0 812 812
> G 6* 0 0.00 0 0.00 730 729 730 729 0 729 730
> G25* 0 0.00 0 0.00 825 819 825 819 0 819 825
> G21* 0 0.00 0 0.00 776 775 776 775 0 775 776
> G16* 0 0.00 0 0.00 928 926 928 926 0 926 928
> G15* 0 0.00 0 0.00 755 754 755 754 0 754 755
> G18* 0 0.00 0 0.00 706 705 706 705 0 705 706
> G22* 0 0.00 0 0.00 765 765 765 765 0 765 765
> G14* 0 0.00 0 0.00 685 684 685 684 0 684 685
> G 1* 0 0.00 0 0.00 744 744 744 744 0 744 744
> G20* 0 0.00 0 0.00 676 675 676 675 0 675 676
> G23* 0 0.00 0 0.00 760 760 760 760 0 760 760
> * = SV with no NAV info
> Obs w/ no L1 : 0
> Obs w/ no L2 : 33
> Obs w/ no P1 | CA : 0
> Obs w/ no P2 : 33
> Obs w/ low L1 S/N : 0
> Obs w/ low L2 S/N : 0
>
> Obs reported w/ code | phase : 22616
> Obs deleted (any reason) : 33
> Obs complete : 22583
>
> No. of Rx clock offsets : 0
> Total Rx clock drift : 0.000000 ms
> Rate of Rx clock drift : 0.000000 ms/hr
>
> MP1 RMS summary (per SV):
>
> slips L1 rx L2 rx
> SV obs # del <elev> MP1 rms [m] all all all
> G 3* 925 2 0.00 0.458854 43 0 0
> G 8* 764 1 0.00 0.328504 36 0 0
> G10* 931 1 0.00 0.432894 43 0 0
> G13* 735 0 0.00 0.347218 34 0 0
> G19* 933 0 0.00 0.424107 43 0 0
> G27* 800 0 0.00 0.327217 37 0 0
> G28* 773 4 0.00 0.315452 36 0 0
> G29* 945 1 0.00 0.399142 45 0 0
> G26* 923 0 0.00 0.432438 43 0 0
> G 7* 710 0 0.00 0.325294 33 0 0
> G11* 890 7 0.00 0.412356 41 0 0
> G24* 946 0 0.00 0.416552 44 0 0
> G 9* 875 1 0.00 0.448600 41 1 0
> G 4* 894 2 0.00 0.536928 41 0 0
> G 5* 680 0 0.00 0.353124 31 0 0
> G 2* 730 0 0.00 0.367306 33 0 0
> G30* 812 0 0.00 0.472925 37 0 0
> G 6* 730 1 0.00 0.323736 34 0 0
> G25* 825 6 0.00 0.471208 38 0 0
> G21* 776 1 0.00 0.312196 36 0 0
> G16* 928 2 0.00 0.427789 42 0 1
> G15* 755 1 0.00 0.312417 35 0 0
> G18* 706 1 0.00 0.292708 33 0 0
> G22* 765 0 0.00 0.285271 35 0 1
> G14* 685 1 0.00 0.365960 32 0 0
> G 1* 744 0 0.00 0.340249 34 0 1
> G20* 676 1 0.00 0.362816 33 0 0
> G23* 760 0 0.00 0.333326 35 0 0
> * = SV with no NAV info
>
> mean MP1 rms : 0.384458 m
> # MP1 obs : 22583
> # MP1 slips : 1048
> # Rvr L1 slips : 1
> # Rvr L2 slips : 3
>
> MP2 RMS summary (per SV):
>
> slips L1 rx L2 rx
> SV obs # del <elev> MP2 rms [m] all all all
> G 3* 925 2 0.00 0.477858 43 0 0
> G 8* 764 1 0.00 0.335497 36 0 0
> G10* 931 1 0.00 0.450334 43 0 0
> G13* 735 0 0.00 0.341508 34 0 0
> G19* 933 0 0.00 0.443213 43 0 0
> G27* 800 0 0.00 0.364125 37 0 0
> G28* 773 4 0.00 0.303957 36 0 0
> G29* 945 1 0.00 0.433840 45 0 0
> G26* 923 0 0.00 0.393199 43 0 0
> G 7* 710 0 0.00 0.328180 33 0 0
> G11* 890 7 0.00 0.537604 41 0 0
> G24* 946 0 0.00 0.463966 44 0 0
> G 9* 875 1 0.00 0.466188 41 1 0
> G 4* 894 2 0.00 0.497740 41 0 0
> G 5* 680 0 0.00 0.397530 31 0 0
> G 2* 730 0 0.00 0.351823 33 0 0
> G30* 812 0 0.00 0.445597 37 0 0
> G 6* 730 1 0.00 0.356488 34 0 0
> G25* 825 6 0.00 0.469501 38 0 0
> G21* 776 1 0.00 0.354433 36 0 0
> G16* 928 2 0.00 0.470584 42 0 1
> G15* 755 1 0.00 0.338473 35 0 0
> G18* 706 1 0.00 0.325811 33 0 0
> G22* 765 0 0.00 0.378443 35 0 1
> G14* 685 1 0.00 0.327171 32 0 0
> G 1* 744 0 0.00 0.318364 34 0 1
> G20* 676 1 0.00 0.363915 33 0 0
> G23* 760 0 0.00 0.376066 35 0 0
> * = SV with no NAV info
>
> mean MP2 rms : 0.402351 m
> # MP2 obs : 22583
> # MP2 slips : 1048
> # Rvr L1 slips : 1
> # Rvr L2 slips : 3
>
>
> ------------------------------------------------------------------------
>
> DESCRIPTION
> Some receivers with cheap internal oscillators like the
> Ashtech or Trimble receivers have "steered clocks" - clocks which are
> periodically reset to keep them within 1 millisecond of GPS time.
> The reset is actually done with a software counter, and the clock
> adjustement is always +1 or -1 millisecond. Note that the TurboRogue
> receiver does not steer it's clock in the same way.
>
> These receivers do not output a physically consistent set of observ-
> ables. Due to the clock behavior, the phase and range observables
> should both have a sawtooth clock signature; however, only the range
> observables have the sawtooth. The phase is computed based on
> the true oscillator, without the offsets introduced by the clock
> adjustments.
>
> The programs currently used to convert the raw data files to RINEX for-
> mat change the observables, but also do not produce a physically con-
> sistent set of observables. The standard approach is to change the time
> tag of the data when the receiver adjusts its clock. The sawtooth clock
> is removed from the code observables. Some RINEX files may have been
> converted differently; these files are simply a transcription of the
> raw data file, with no changes to the time tags or the observables.
>
> NOTE: Failure to run CLOCKPREP on a file from a Trimble or Ashtech
> receiver converted to RINEX in the standard way will result in a solu-
> tion that is WRONG, but has no obvious symptoms of wrongness, other
> than a comparison to a correct solution. The solution will be
> biased primarily in the east component. Residuals will appear normal.
> This is an insidious problem, and it arises because of the change of
> time tags- this appears to produce a physically consistent set of
> observables, but the altered time tags will result in biases to the solution
> due to earth and satellite motions.
>
> CLOCKPREP determines what (if anything) must be done to the file, and
> produces a physically consistent set of observables. If necessary, it
> corrects the time tags back to their proper values and
> adjusts the observables if necessary. If CLOCKPREP has already been run,
> or if there are no clock offsets in the file, a warning message is
> printed an execution is stopped.
>
>
> ------------------------------------------------------------------------
>
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