Geo++^® SSR2OBS - Online Help

Examples

Example 1:

Task:

Generate a real-time stream with legacy RTCM 3 messages generated from a SSRZ data stream.

Job Details:

 ssr2obs in combination with GPPNET

Solution:

:: get 1000 and GGA output
set GGA_OUT_PORT=9005
set RCVR_ID=cpos
set RCVR_IN=javad_in
set RCVR_IN_OPTS=-c212.59.35.100:2101 -N1000,login:pw +n -n -B
start %RCVR_IN% %RCVR_ID% %RCVR_IN_OPTS% -t0 -RD8000,200,120000 +t5000
wait 200
start "%RCVR_ID%" /MIN gnrt %RCVR_ID% 123 +K
wait 200
gn_get_mc -SRV=wox.geopp.de:2101,SERV_EPH,login:pw -n=NDSE
start "GGA_Source" /MIN nav_out 15,27 -d +C%GGA_OUT_PORT%,20 -W -w=2500 -Q -GGA3,6 -oGNRT,%RCVR_ID%
ssr2obs +syst -oss=9100 -i=127.0.0.1:9005 -z=85.214.42.127:2101 -N=SSRZ_NDS1,login:pw -debug=2049 -sm -prof -dgp=ROVE -rtcm -rfix=52.43079824,9.608171564,108.9535 -rdist=0.0
gpplisttype gnss_obs
gn_show_obsd -SHOW=ssr2obs,,ROVE

Explanations:

The program SSR2OBS provides a ShrdObs structure with legacy RTCM message types 1004, 1012 on port 9100.
A RTK rover can access the RTCM 3 data stream from the configured port. The ephemeris are generally available from the rover. Therefore a transmission is not meaningful considering bandwidth issues. Therefore the ephemeris data stream is configured separately.

Example 2:

Task:

SSR2OBS with the use of transformation options. The OSR corrections are defined in the service CRS of the SSR generation, i.e. typically current epoch of the latest ITRF realization. Use a 15 parameter transformation to convert to the datum requested by the user application e.g. an ECEF.

Job Details:

 ssr2obs start "ssr2obs" /MIN ssr2obs -i=%GGA:PORT% -dgp=2001 -sm -ro=0.8 -maxa=40 -mina=30 -ssrdatum=ITRF2008 -refdatum=ETRF89 -datumdef=etrfitrf.dat

Explanations:

SSR data is generally generated and provided in the ITRF. A 15P geodetic datum transformation is required to transform to a different datum.
SSR2OBS supports this using the options

-datumdef=
-ssrdatum=
-refdatum=

Alternatively, the 15P transformation can be configure and executed in the positioning application/system.

    

Example 3:

Task:

A typical start of SSR2OBS reads as follows

Job Details:

    start bin/ssr2obs.exe +syst -o=- -i=%GGA:PORT% -z=%Caster-IP%:%Caster-port% -N=%Stream%,%User%:%PW% -pid=%ProviderID% -sid=%ServiceID% -eph=%EPH_SOURCE% -rdist=0.0 -ro=0.3 -re=0 -rtcmmsm

Explanations:

open TCP/IP port GGA_PORT and wait for one client connection
read NMEA GGA position from client connection
output RTCM MSM (-rtcmmsm) to client on this connection (-o=-)
emulate NTRIP login on connection (-z=, -N=)
NMEA, ZDA not required (take calendar date from system time)
OSR corrections are defined in the service CRS of the SSR generation, i.e. typically current epoch ITRF; use a 15 parameter transformation to convert to e.g. an ECEF

Example 4:

Task:

Start SSR2OBS without SSR_IN with integrated SSR_IN option in SSR2OBS.The command expects RTCM-SSR/4090.4/4090.5 messages and provides legacy RTCM. The Geo++ 4090.4 and 4090.5 are only available using GNSMART1 (GNNET) and the support is fading out in favor of the Geo++ SSRZ format.

Job Details:

    ssr2obs +syst -i=44332 -oss=44333 -sm -prof -rtcm -rdist=0.0 -ro=0.3 -re=0 -ssr_in:: -s=10.192.91.54:4002 -N=SSR04_SUED,login:pw -s=85.214.79.175:2101

Explanations:

GGA input expected from port 44332
OSR RTCM MSM written to local port 44333 (-rtcm)
ephemeris are expected from a server without access information (10.192.91.54)
SSR corrections are read from the mount point SSR04_SUED with access information from a NTRIP caster (85.214.79.17)
OSR corrections are defined in the service CRS of the SSR generation, i.e. typically current epoch ITRF; use 15 parameter transformation to convert to e.g. an ECEF

Example 5

Task:

Start SSR2OBS with datum transformation and satellite PCV correction:

Job Details:

    start "ssr2obs FRA2" ssr2obs -i=9104 +syst -o=- -z=*.*.*.*:2101 -N=FRA2_SSRZ,login:pwd ^
    -TI,MD=1000 -II,MD=1000 -TI,ND=500 -II,ND=500 -datumdef=etrfitrf_giscad.dat -ssrdatum=ITRF2014_CE -refdatum=ETRF2000_2010 ^
   -atx_sv=C:\geopp\conf\gnsmart\igs14.atx -debug=6209 +dLS +dLE -rdist=0.0 -ro=0.3 -re=0 -rtcmmsm -eph=wox.geopp.de:2101 -NE=SERV_EPH,login:pwd

Explanations:

datum transformation from ITRF2014 current epoch to ETRF2000
IGS satellite PCV corrections considered for OSR RTCM MSM output
interpolation options set

Example 6

Task:

Start SSR2OBS with debug options to check and verify update rate:

Job Details:

    rem 2022-08-29 Geo++

    rem First please edit the variables according to your environment settings
    rem
    set ProviderID=1
    set ServiceID=1

    set SSRZ-Caster-IP=217.175.51.161
    set SSRZ-Caster-port=2101
    set SSRZ-Stream=CZE1_SSRZ
    set SSRZ-User=useruser
    set SSRZ-PW=pwpw

    set GGA_IN_PORT=3003
    set MSM_OUT_PORT=9100

    set EPH-Caster-IP=wox.geopp.de
    set EPH-Caster-port=2101
    set EPH-Stream=SERV_EPH
    set EPH-User=useruseruser
    set EPH-PW=pwpwpw

    rem SSR data is generally provided in ITRF
    rem  please provide a 15P geodetic datum transformation
    rem  to transform to a different datum using the options:
    rem  -datumdef=
    rem  -ssrdatum=
    rem  -refdatum=
    rem  e.g -datumdef=etrfitrf.dat -ssrdatum=ITRF2014 -refdatum=ETRF2000
    rem OR configure it in your positioning application/system

    rem Second start of SSR2OBS module 
    rem

    rem Case 1)
    rem SSR2OBS receives SSRZ correction messages (-z=) and position/timing data from NMEA (GGA [ZDA], -i=).
    rem From these information it computes non-physical (VRS/PRS) observations for the position
    rem provided via the GGA_IN_PORT (-i=) and provides RTCM3 MSM data on the same TCP port (-o=-) or a
    rem separate port (-oss=)
    rem Ephemeris Source expects RTCM3 , e.g. from the local GNSS receiver (-eph=, plain TCP, no NTRIP) or
    rem from a Caster (-eph= -NE=)
    rem
    start bin/ssr2obs.exe +syst -oss=%MSM_OUT_PORT% -i=127.0.0.1:%GGA_IN_PORT% -z=%SSRZ-Caster-IP%:%SSRZ-Caster-port% -N=%SSRZ-Stream%,%SSRZ-User%:%SSRZ-PW% -pid=%ProviderID% -sid=%ServiceID% -eph=%EPH-Caster-IP%:%EPH-Caster-port% -NE=%EPH-Stream%,%EPH-User%:%EPH-PW% -rdist=0.0 -ro=0.3 -re=0 -rtcmmsm -atx_sv=igs14.atx -ssrdatum=ITRF2014_CE -refdatum=ETRF2000_2010 -datumdef=etrfitrf_giscad.dat -debug=6209 -TI,MD=1000 -II,MD=1000 -TI,ND=500 -II,ND=500 +dPOS=gga_rec.log +dLE +dLS


    rem -------------------------------------------
    rem testing data flow with GNNET modules
    rem -------------------------------------------

    rem Get Ephemeris, check if weph already opened
    gniptest -1 |findstr /c:"RTCMR_IN        weph" >nul 2>&1
    if not %errorlevel% == 0 start rtcmr_in weph -c=%EPH-Caster-IP%:%EPH-Caster-port% -N=%EPH-Stream%,%EPH-User%:%EPH-PW% -RD=3000 -t0 +t3000 +SOBS
    wait 1000

    set GN_DATA=.\Data,DAY

    rem CSUM outside network: ITRF CSUM 11558M001    3931871.34802  1200665.59209  4860559.31009
    rem                       ITRF CSUM 49  57  53.18791   16  58  51.47870        378.3702
    start rtcmr_in mobi -c=217.175.51.161:2101 -a0.0 +X1 +XN60 -RD=5000,100,6000 +t3000 -N=CSUM,usrusrusrusr:pwpwpwpw
    wait 500

    start "GNRT Mobile Station" /MIN gnrt mobi +D -e0 -s2 +M -GLO=GPP
    wait 500

    start stagra -o=GNRT,mobi
    wait 500
 
    start nav_out 15 -oGNRT,mobi -d +C%GGA_IN_PORT%,20 -W -w=2500 -Q -GGA3,6 
    wait 500

    start nav_in +c=127.0.0.1:%GGA_IN_PORT% -d
    wait 500

    start rtcmr_in MSMO -c=127.0.0.1:%MSM_OUT_PORT% -a0.0 +X1 +XN60 -RD=5000,100,6000 +t3000
    wait 500

    rem In the debug output file of SSR2OBS is a lines stating "epo_wnt=":
    rem   DBG: ThreadFuncDoConv() epo_wnt=2177,223229.000, gstates_wnt=2177,223228.000
    rem   DBG: ThreadFuncDoConv() epo_wnt=2177,223230.000, gstates_wnt=2177,223228.000
    rem The epo_wnt line states, which SSRZ epoch (gstates) is used for the computation of a SSI epoch output (epo_wnt).

Explanations:

SSR2OBS started with debug options -debug=6209 +dLE +dLS, which write debug out file like SR2O241i.out and SSI files like SR2O241i.ssi
SSR2OBS GGA output option +dPOS=gga_rec.log allows to check the GGA messages
for further checks, GNSS data from a test site CSUM are tracked with RTCMR_IN to generate a GGA stream for input to SSR2OBS. For this task a combination of GNRT and NAV_OUT is used
the finally converted SSR data in OSR MSM format generated by SSR2OBS is tracked by an RTCMR_IN MSMO
as the test site is outside of the network, the interpolation options for the atmospheric corrections are modified with options -TI* and -II*

Example SSI:

Example of the "SSI" line from an SSR2OBS debug output:

T396188.7: SSI,week,time,SAT,signal,wavelength(m),azimuth(deg),elevation(deg),range(m),X(m),Y(m),Z(m),LowRate clock (m),HighRate clock(m),orbit(m),CodeBias(m),PhaseBias(m),STEC total(m),STEC total(TECU),STEC GVI(TECU),STEC GSI(TECU),STEC RSI(TECU),STEC GRI(TECU),tropo(m),GT(m),RT(m),GRT(m),modelZTDdry(m),modelZTDwet(m),modelSTDdry(m),modelSTDwet(m),windup(cyc),relativity(m),solidEarthTide dN(m),solidEarthTide dE(m),solidEarthTide dU(m),solidEarthTide dX(m),solidEarthTide dY(m),solidEarthTide dZ(m),oceanLoading dN(m),oceanLoading dE(m),oceanLoading dU(m),oceanLoading dX(m),oceanLoading dY(m),oceanLoading dZ(m)
T396188.7: SSI,2249,57638.0,G02,1C,0.190293673,72.818019993,57.117701880,21413047.161536552,12735804.117386131,12263371.659454582,20378449.532328736,-3.16880,0.00000,-0.19623,0.000000,-1.560219,6.320383,38.925220,38.913837,0.000000,-0.044218,0.055601,2.917025,0.000000,0.124320,0.004638,2.299765,0.042791,2.737125,0.050943,-0.165679020,0.013515010,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G02,2W,0.244210213,72.818019993,57.117701880,21413047.161536552,12735804.117386131,12263371.659454582,20378449.532328736,-3.16880,0.00000,-0.19623,-3.337200,-1.777284,10.409320,38.925220,38.913837,0.000000,-0.044218,0.055601,2.917025,0.000000,0.124320,0.004638,2.299765,0.042791,2.737125,0.050943,-0.165679020,0.013515010,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G18,1C,0.190293673,163.931333844,55.265698915,21142686.286886752,24120665.966407772,5457489.533491408,9883426.776230050,0.01360,0.00000,-0.86288,0.000000,-0.493272,6.420305,39.540608,39.533454,0.000000,0.022461,-0.015308,2.980639,0.000000,0.127031,0.004739,2.299765,0.042791,2.796813,0.052056,-0.159084348,0.013471551,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G18,2W,0.244210213,163.931333844,55.265698915,21142686.286886752,24120665.966407772,5457489.533491408,9883426.776230050,0.01360,0.00000,-0.86288,-0.147000,-0.718664,10.573886,39.540608,39.533454,0.000000,0.022461,-0.015308,2.980639,0.000000,0.127031,0.004739,2.299765,0.042791,2.796813,0.052056,-0.159084348,0.013471551,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G18,5Q,0.254828049,163.931333844,55.265698915,21142686.286886752,24120665.966407772,5457489.533491408,9883426.776230050,0.01360,0.00000,-0.86288,2.012500,-0.681786,11.513343,39.540608,39.533454,0.000000,0.022461,-0.015308,2.980639,0.000000,0.127031,0.004739,2.299765,0.042791,2.796813,0.052056,-0.159084348,0.013471551,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G25,1C,0.190293673,121.716519535,19.128482252,23897378.474862646,16592667.685585296,20731258.287505493,2594118.253744791,4.38060,0.00000,-0.30573,0.000000,-0.057434,11.802894,72.690254,72.702640,0.000000,0.308709,-0.321096,7.407085,0.000000,0.315650,0.011835,2.299765,0.042791,6.949592,0.130007,0.086266200,0.016217977,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G25,2W,0.244210213,121.716519535,19.128482252,23897378.474862646,16592667.685585296,20731258.287505493,2594118.253744791,4.38060,0.00000,-0.30573,1.499700,-2.310152,19.438711,72.690254,72.702640,0.000000,0.308709,-0.321096,7.407085,0.000000,0.315650,0.011835,2.299765,0.042791,6.949592,0.130007,0.086266200,0.016217977,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G25,5Q,0.254828049,121.716519535,19.128482252,23897378.474862646,16592667.685585296,20731258.287505493,2594118.253744791,4.38060,0.00000,-0.30573,0.130700,-2.417009,21.165780,72.690254,72.702640,0.000000,0.308709,-0.321096,7.407085,0.000000,0.315650,0.011835,2.299765,0.042791,6.949592,0.130007,0.086266200,0.016217977,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G26,1C,0.190293673,296.905473564,60.305524374,20767585.503597431,13638085.663942877,-8015937.682297405,21238634.836980745,4.15520,0.00000,0.03629,0.000000,-1.002282,6.140540,37.817625,37.820998,0.000000,0.033929,-0.037301,2.820319,0.000000,0.120199,0.004484,2.299765,0.042791,2.646386,0.049251,0.093605663,0.013217987,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G26,2W,0.244210213,296.905473564,60.305524374,20767585.503597431,13638085.663942877,-8015937.682297405,21238634.836980745,4.15520,0.00000,0.03629,2.448600,-1.225076,10.113129,37.817625,37.820998,0.000000,0.033929,-0.037301,2.820319,0.000000,0.120199,0.004484,2.299765,0.042791,2.646386,0.049251,0.093605663,0.013217987,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G26,5Q,0.254828049,296.905473564,60.305524374,20767585.503597431,13638085.663942877,-8015937.682297405,21238634.836980745,4.15520,0.00000,0.03629,-0.908000,-1.301009,11.011649,37.817625,37.820998,0.000000,0.033929,-0.037301,2.820319,0.000000,0.120199,0.004484,2.299765,0.042791,2.646386,0.049251,0.093605663,0.013217987,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G29,1C,0.190293673,61.024565318,49.177220383,21369338.085473049,8963618.569933183,13051936.394053664,21262538.693332322,-3.78610,0.00000,1.64948,0.000000,-0.137778,6.869099,42.304583,42.448644,0.000000,-0.214517,0.070456,3.235904,0.000000,0.137910,0.005146,2.299765,0.042791,3.036325,0.056524,-0.053947356,0.013753373,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G29,2W,0.244210213,61.024565318,49.177220383,21369338.085473049,8963618.569933183,13051936.394053664,21262538.693332322,-3.78610,0.00000,1.64948,-0.963600,-0.051573,11.313024,42.304583,42.448644,0.000000,-0.214517,0.070456,3.235904,0.000000,0.137910,0.005146,2.299765,0.042791,3.036325,0.056524,-0.053947356,0.013753373,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G31,1C,0.190293673,214.250175678,44.808147248,21865254.593781915,24784849.038263924,-6595521.377686049,7588195.172050706,-1.43640,0.00000,0.67174,0.000000,-1.833569,7.305987,44.995238,44.796155,0.000000,0.214325,-0.015241,3.473565,0.000000,0.148038,0.005524,2.299765,0.042791,3.259317,0.060686,0.177919501,0.014074817,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,G31,2W,0.244210213,214.250175678,44.808147248,21865254.593781915,24784849.038263924,-6595521.377686049,7588195.172050706,-1.43640,0.00000,0.67174,-1.261900,-0.357469,12.032555,44.995238,44.796155,0.000000,0.214325,-0.015241,3.473565,0.000000,0.148038,0.005524,2.299765,0.042791,3.259317,0.060686,0.177919501,0.014074817,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E24,1C,0.190293673,302.927265270,32.943387004,25639208.001247101,6469108.943757528,-17563214.325493786,22904588.075903390,-1.88430,0.00000,0.68681,0.000000,-0.413161,8.882270,54.703064,54.557958,0.000000,0.117463,0.027643,4.494176,0.000000,0.191532,0.007154,2.299765,0.042791,4.216904,0.078586,0.094235454,0.015856431,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E24,6C,0.234441805,302.927265270,32.943387004,25639208.001247101,6469108.943757528,-17563214.325493786,22904588.075903390,-1.88430,0.00000,0.68681,0.152600,-0.510695,13.481723,54.703064,54.557958,0.000000,0.117463,0.027643,4.494176,0.000000,0.191532,0.007154,2.299765,0.042791,4.216904,0.078586,0.094235454,0.015856431,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E24,7Q,0.248349370,302.927265270,32.943387004,25639208.001247101,6469108.943757528,-17563214.325493786,22904588.075903390,-1.88430,0.00000,0.68681,-1.113000,-0.581349,15.128693,54.703064,54.557958,0.000000,0.117463,0.027643,4.494176,0.000000,0.191532,0.007154,2.299765,0.042791,4.216904,0.078586,0.094235454,0.015856431,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E24,5Q,0.254828049,302.927265270,32.943387004,25639208.001247101,6469108.943757528,-17563214.325493786,22904588.075903390,-1.88430,0.00000,0.68681,-0.975800,-0.597798,15.928312,54.703064,54.557958,0.000000,0.117463,0.027643,4.494176,0.000000,0.191532,0.007154,2.299765,0.042791,4.216904,0.078586,0.094235454,0.015856431,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E31,1C,0.190293673,293.461163540,85.127387136,23255113.567914024,19280712.220604733,-131975.471283631,22462630.941860165,1.69930,0.00000,0.08503,0.000000,-1.623838,5.437410,33.487267,33.552447,0.000000,-0.105348,0.040168,2.459775,0.000000,0.104833,0.003910,2.299765,0.042791,2.308086,0.042946,0.093965682,0.013647555,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E31,6C,0.234441805,293.461163540,85.127387136,23255113.567914024,19280712.220604733,-131975.471283631,22462630.941860165,1.69930,0.00000,0.08503,-1.075300,-1.880550,8.253031,33.487267,33.552447,0.000000,-0.105348,0.040168,2.459775,0.000000,0.104833,0.003910,2.299765,0.042791,2.308086,0.042946,0.093965682,0.013647555,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E31,7Q,0.248349370,293.461163540,85.127387136,23255113.567914024,19280712.220604733,-131975.471283631,22462630.941860165,1.69930,0.00000,0.08503,1.149100,-1.913324,9.261247,33.487267,33.552447,0.000000,-0.105348,0.040168,2.459775,0.000000,0.104833,0.003910,2.299765,0.042791,2.308086,0.042946,0.093965682,0.013647555,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000
T396188.7: SSI,2249,57638.0,E31,5Q,0.254828049,293.461163540,85.127387136,23255113.567914024,19280712.220604733,-131975.471283631,22462630.941860165,1.69930,0.00000,0.08503,1.099600,-2.016780,9.750745,33.487267,33.552447,0.000000,-0.105348,0.040168,2.459775,0.000000,0.104833,0.003910,2.299765,0.042791,2.308086,0.042946,0.093965682,0.013647555,-0.017224298,0.010218271,0.107309959,0.083392000,0.017553157,0.068221536,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000,0.000000000

SSI	state space influence	remarks
week	GPS week [-]	reference time
time	GPS week seconds [s]	reference time
SAT	SV (G=GPS, R=GLONASS, E=Galileo, C=BDS)
signal	RINEX signal abbrevation
wavelength	wavelength frequency [m]
azimuth	azimuth of SV [deg]
elevation	elevation of SV [deg]
range	range to SV [m]
X	X-coordinate BE of SV
Y	Y-coordinate BE of SV
Z	Z-coordinate BE of SV
LowRate clock	low rate clock SSI [m]
HighRate clock	low high rate clock SSI [m]	ie decoded value
orbit	orbit correction SSI [m]	ie LOS state space influence
CodeBias	code bias SSI [m]	ie decoded value
PhaseBias	phase bias SSI [m]	ie decoded value
STEC total	sum of GVI + GSI + RSI + GRI SSI [m]	ie LOS state space influence
STEC total	sum of GVI + GSI + RSI + GRI SSI [TECU]	ie LOS state space influence
STEC GVI	Global VTEC Ionosphere SSI [TECU]
STEC GSI	Global STEC Ionosphere SSI [TECU]
STEC RSI	Regional STEC Ionosphere SSI [TECU]
STEC GRI	Gridded STEC Ionosphere SSI [TECU]
tropo	sum of GT + RT + GRT [m]	ie LOS state space influence
GT	Global Troposphere [m]
RT	Regional Troposphere [m]
GRT	Gridded Troposphere [m]
modelZTDdry	dry component of Model Zenith Tropospheric Delay [m]
modelZTDwet	wet component of Model Zenith Tropospheric Delay [m]
modelSTDdry	dry component of Model Slant Tropospheric Delay [m]
modelSTDwet	dry component of Model Slant Tropospheric Delay [m]
windup	windup correction of phase [cyc]	ie decoded value
relativity	relativistic correction (only Shapiro) [m]	ie user correction, no SSR component
solidEarthTide dN	solid Earth tides North [m]	ie user correction, no SSR component
solidEarthTide dE	solid Earth tides East [m]	ie user correction, no SSR component
solidEarthTide dU	solid Earth tides Up [m]	ie user correction, no SSR component
solidEarthTide dX	solid Earth tides X-component [m]	ie user correction, no SSR component
solidEarthTide dY	solid Earth tides Y-component [m]	ie user correction, no SSR component
solidEarthTide dZ	solid Earth tides Z-component [m]	ie user correction, no SSR component
oceanLoading dN	ocean loading North [m]	ie user correction, no SSR component
oceanLoading dE	ocean loading East [m]	ie user correction, no SSR component
oceanLoading dU	ocean loading Up [m]	ie user correction, no SSR component
oceanLoading dX	ocean loading X-component [m]	ie user correction, no SSR component
oceanLoading dY	ocean loading Y-component [m]	ie user correction, no SSR component
oceanLoading dZ	ocean loading Z-component [m]	ie user correction, no SSR component

Example 7

Task:

SSR2OBS configuration file from an Alberding A10 receiver with iono aiding configured and switched on

Job Details:

    #config file for /usr/lib/systemd/system/ssr2obs.service
    #Check ssr2obs -? for more information

    # for debug
    #ssr2obs -debug=5121 -z=127.0.0.1:22000 -eph=127.0.0.1:22001 -i=127.0.0.1:22002 -oss=22003 +syst -maxa=30 -dbcz=12 -IA=1 -TI,ND=150 -II,ND=150 -atx_sv=/var/euronav/geodata/igs20.atx -VRS=5000 -rtcmmsm -ro=0.8 -re=0 -datumdef=/etc/euronav/etrfitrf.dat -ssrdatum=IGS20 -refdatum=ETRF_R2016 &>debug.log

    # SSRZ input stream
    # activate SSRZ mode and connect to SSRZ server address [tcp_addr:port]
    SSR_INPUT="-z=127.0.0.1:22000"

    # Ephemeris input
    # -eph=         - read ephemerides messages from server address [tcp_addr:port]
    EPHEM_INPUT="-eph=127.0.0.1:22001"

    # SSR options
    # -maxa[=]x.x - max SSR age [15.0]
    #               The incoming correction stream is checked concerning the age of
    #               the data. The maximium age can be changed with the option
    SSR_OPT="-maxa=30"

    # SSRZ options
    # -dbcz[=]x.x - detect broken ssrz input connection feature, timeout [s],
    #               default 0=disabled.
    SSRZ_OPT="-dbcz=12"

    # SSRZ Processing options, Tropo/Iono interpolation
    # -IA[=]n       - set iono-aiding mode [0|1], default is 0. Activate ionospheric
    #                 aiding with parameter set to "1". The options requires a feedback
    #                 channel with the GNSS data in RTCM3 MSM format from the rover
    # -TI,MD=x.x    - set Tropo Interpolation max station distance [km] [500.000000]
    # -II,MD=x.x    - set Iono Interpolation max station distance [km] [500.000000]
    # -TI,ND=x.x    - set Tropo Interpolation max nearest station distance [km] [100.000000]
    # -II,ND=x.x    - set Iono Interpolation max nearest station distance [km] [100.000000]
    # PROC_OPT="-IA=1 -TI,MD=1500 -II,MD=1500 -TI,ND=800 -II,ND=800"
    # PROC_OPT="-IA=1"
    PROC_OPT="-IA=1 -TI,ND=150 -II,ND=150"

    # Satellite Antenna PCV corrections file
    # -atx_sv=FNAME - read Satellite Antenna PCV corrections from file: FNAME. The
    #                 satellite phase variations are read from an ANTEX file and
    #                 applied in the conversion from SSR to OSR
    SAT_ATX_FILE="-atx_sv=/var/euronav/geodata/igs20.atx"

    # Position and time from Rover
    # -i[=]address - rover pos and time from GGA+ZDA input [tcp_addr:port, port, comX,...]
    #                The option with at least a NMEA GGA content is mandatory,
    #                i.e. is an essential parameter.
    # -oss[=]port  - RTCM output simplex server port number. RTCM output server
    #                and GGA input server can operate on the same connection. The simplex
    #                server allows for different clients.
    IPS_IO="-i=127.0.0.1:22002 -oss=22003"

    # System time
    # assume system time beeing correct to a few minutes (then NMEA ZDA not required)
    USE_SYSTEM_TIME="+syst"

    # Virtual reference options
    # -rupd  - update virtual reference position (1.0 default value)
    #          -1, the first GGa position is used
    # -glo   - introduce GLONASS observation biases for GLONASS
    #          UBX or SEP0, see -glo=?
    # -rdist[=]n - distance of virtual reference from user position [100m]. By default
    #              the position used to transform SSR data to OSR is offset by 100 m
    #              in north. A distance of 0 m must be defined, if the actual
    #              NMEA GGA position should be used. The option therefore allows
    #              the configuration of a PRS (Pseudo Reference Station) mode.
    #VREF_OPTS="-rupd=60.0 -rdist=1500 -glo=SEP0"
    #VREF_OPTS="-rupd=60.0 -rdist=0.0 -glo=SEP0"
    #VREF_OPTS="-rdist=0.0"
    VREF_OPTS="-VRS=5000"

    # RTCM MSM
    # enable RTCM MSM output (with SSRZ input only)
    RTCM_OPTS="-rtcmmsm"

    # Offsets
    # -ri[=]x.x   - output interval [1.0]
    #               The output interval is not independent from the received NMEA GGA
    #               stream. RTCM corrections are only provided for the time of an
    #               NMEA GGA event. The options is therefore useful to reduce the
    #               update interval in case of higher frequency NMEA GGA messages or
    #               to have update interval longer than 1 sec.
    # -ro[=]x.x   - output offset to last GGA [0.8]
    #               The output of legacy RTCM corrections (see option -rtcm) is
    #               triggered to be 0.8 after receiving the NMEA GGA string. This
    #               option can affect the GNSS rover prediction algorithm as the delay
    #               of the actual timing can be kept small.
    #               The option can be combined with option -re.
    #               was set to 0.2 from geo++, this produced a data delay of -0.6 sec,
    #               it is unusable for Javad Triumph from DLR
    # -re[=]x     - output epoch offset to last GGA [1.0]
    #               The time offset set by this option is added to the time of the
    #               output legacy RTCM corrections.
    #RATE_OPTS="-ri=1.0 -ro=0.8 -re=1.0"
    #RATE_OPTS="-ro=0.3 -re=0"
    RATE_OPTS="-ro=0.8 -re=0"

    # Transformation from ITRF08 (PPP) to ETRF_D (SAPOS)
    # -datumdef=FNAME - datum trafo defined in file FNAME
    # -ssrdatum=NAME  - assume SSR is in datum NAME
    # -refdatum=NAME  - datum for DGP/RTCM output
    GEO_DATUM_OPTS="-datumdef=/etc/euronav/etrfitrf.dat -ssrdatum=IGS20 -refdatum=ETRF_R2016"

    # enable shared memory ephemeris
    #MISC="-sm"

    # debug options
    DEBUG_OPTS=""
    #DEBUG_OPTS="-debug=5121"

Explanations:

The receiver must be configured, that RTCM MSM messages are provided. This can b ethe same port as the NMEA port.

Example 8

Task:

Set up a SSRZ monitor with Geo++ GNSMART tools.

Job Details:

start rtcmr_in NMEA -c=localhost:9024 -RD -RN +RD -d -dr -POS,DT=10 +gnobs4gui +t3000 +o +R -POS=N,52,36,15.876,E,9,17,34.987,113.76
				  
start ssr2obs +syst -o- -i=9024 -z=167.235.0.231:2101 -N=ZSS-SSRZ-BRST-DE,login:pw ^
                  -sm -atx_sv=igs20_sv_only.atx -TI,MD=1000 -II,MD=1000 -TI,ND=500 -II,ND=500 ^
                  -rdist=0.0 -ro=0.3 -re=0 -prof -rtcmmsm -maxa=30 -rtcmres +dLS=abcd +dLE ^
                  -ssrdatum=ITRF14 -refdatum=ETRFD -datumdef=etrfitrf_gpp.dat -ri=1.0 -debug=4096 ^
	          -eph=www.wox.geopp.de:2102 -NE=SERV_EPH,login:pw &wait 200

Explanations:

The RTCMR_IN generates a continuous NMEA stream for SSR2OBS and receives the RTCM MSM messages generated by SSR2OBS.
SR2OBS receives an SSRZ, NMEA and an ephemeris data streams and converts the SSRZ for the position states in the NMEA message into OSR RTCM MSM.
Depending on the debug level SSI files are generated by SSR2OBS for analysis.

Geo++^® GmbH

$Revision: #23 $, $Date: 2025/01/07 $.

Geo++® SSR2OBS - Online Help

Examples

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Example 5

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Example 6

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Example SSI:

Example 7

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Example 8

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Geo++^® SSR2OBS - Online Help