Author: AC Coordinator / NRCan GSDivision Rapid Service IGS Orbit Combination - Week 0835 (Jan 07, 1996 - Jan 13, 1996) Contacts: J. Kouba (kouba@geod.emr.ca) Y. Mireault (mireault@geod.emr.ca), F. Lahaye (lahaye@geod.emr.ca) COMBINATION STRATEGY: Starting with GPS week 803, the IGS Rapid orbit combination is done directly in the ITRF without any alignment to the Bulletin A EOP series. Each centre satellite clock corrections are first transformed to a common reference. For each centre, a clock offset and a drift are estimated with respect to broadcast clock corrections using only non-SA satellites. These offsets and drifts are used to align each centre satellite clock corrections to GPS time. The resulting ephemerides and clock corrections are then combined as weighted averages computed over all centres. Each centre is given a position weight and a clock weight. The position weights are computed from each centre's absolute deviation to the unweighted average orbit after the estimation of a 7-parameter Helmert transformation. The clock weights are computed from the absolute deviation of the initial alignment to broadcast clock for the non-SA satellites, provided these satellites are representative of the clock solution quality of each centre. Finally, a 7-parameter Helmert transformation and clock offset and drift are estimated for each centre with respect to combined solutions and parameters and RMS of fit reported here. All the above estimations are performed using the L1-norm robust scheme. Each centre ephemerides are also evaluated individually and independently from the orbit combination by using week long arcs. The ERP used in this evaluation are those submitted by the respective centres supplemented with IERS Bulletin A UT1-UTC values when they are not supplied. The IGS combined orbits/clocks and all centres providing both orbit and clock solutions are further evaluated by an independent point positioning (navigation) program developed at NRCan. This is primarily intended for testing clock solution precision as well as the orbit/clock consistency. Like the clock solutions broadcast in the navigation message, the combined satellite clocks are corrected for the periodical relativistic correction (see e.g. GPS interface Control document ICD-GPS-200, p.73): -2*(X.V)/c, where X and V are the inertial sv state and velocity vectors and c is the speed of light. Also for compatibility, no satellite L1/L2 delay calibration should be applied. SOFTWARE: The weighted average software used was developed by T. Springer and G. Beutler during 1993. The GPS long arc orbit analysis software used here for individual centre ephemeris evaluation was developed by Beutler et al. at the Astronomical Institute of the University of Bern (AIUB). For more details on the orbit combination and complete references for both software see: Beutler, Kouba, Springer, 1993, Combining orbits of the IGS processing centres, in IGS Analysis Centre Workshop, October 12-14, Ottawa, pp 19-55. PRODUCTS GENERATED: The resulting average ephemeris and clocks are output to daily files in SP3 format. The satellite accuracy codes displayed in the header are based on the weighted RMS for each satellite. Note that each file contains all the satellites that appear in any of the centre ephemeris files. If a satellite or centre was excluded from combination, a note in the REMARKS section of this report will identify the exclusion and the reason. The resulting x and y earth rotation parameters (ERP) associated with the IGS ephemeris files are computed using a weighted average of all available centres (weights are those from the orbit combination). These values are supplemented with the current IERS Bulletin A UT1-UTC values. The Rapid Service Orbit files generated and uploaded into CDDIS @ NASA/GSFC are: IGS08350-6.SP3 IGS GPS ephemeris files for days 0-6, week 0835 in SP3 format. IGS08357.ERP Earth rotation parameters (ERP) associated with ephemerides. IGS08357.SUM Complete report. REMARKS on IGS Rapid Service Orbit Combination: 1. The centres used in the clock combination are COD, EMR, ESA, GFZ and JPL. The other centres are excluded because they either provide broadcast clocks (NGS) or clock corrections are not provided (SIO). The clock information not used is still compared to combination for completeness. The value of 999999.999999 microseconds, according to the sp3 format convention, is used to signify that no clock solution is available and therefore must not be used. 2. Only the GFZ "exact" clock corrections (one epoch out of two) are included in the combination and RMS computation (no "interpolation" values). 3. Centre clock weights were determined using the following non-SA satellites: PRN12, PRN15 and PRN28 except on day 0 (Jan 07) when only PRN15 and PRN28 were used since PRN12 exibited clock jumps up to 50 ns that corrupted the centre clock weights. 4. PRN20 was set unhealthy from 22:46 on day 4 (Jan 11) until 01:17 on day 6 (Jan 13) (ref. NANU 014-96013). This explains the large clock RMS seen for NGS on day 5. 5. Some orbit solutions were excluded from the combination because they were biasing the weighted average (generally indicated by long arc RMS). They were still used for statistics computation. The following table lists the exclusions: Day (Date) | PRN | Centres -------------+------+-------- 1 (Jan 08) | 24 | NGS,SIO (See Remark 7) 6. There was a maneuver of PRN24 on day 1 (Jan 08) (ref. NANU 005-96009). The ESA solution which modeled the maneuver is provided for that satellite on that day as the combined solution. An associated accuracy code of 0 (unknown) was given since there was no redundancy. The ESA and the combined solutions for PRN24 were excluded from the long arc evaluation on day 1 due to unrealistic RMS caused by the maneuver. ** Note that EMR solution for PRN24 was included in the combination on day 1 (Jan 08) since it did not generate any orbit positions (0.000000 records) after 18:00 on that day. The maneuver on PRN24 occured around 20:00. 7. State vector resets were modeled for the following satellites to alleviate the effects of modelling problems, experienced by all centres, in the long arc process: Day (Date) | TIME | PRN | Centres | Reason ------------+----------+-----+------------------------------ 2 (Jan097) | 00:00:00 | 24 | ALL | Maneuver 5 (Jan 12) | 00:00:00 | 23 | ALL | Modeling problems 8. Centre specific UT1-UTC values for ESA were not used in the long arc evaluation. Smaller RMS were obtained when UT1-UTC values from bulletin A were used. 9. Starting with GPS week 0834, long arc RMS for non-eclipsing satellites (NE) are now output below the total long arc RMS (T) (See Table 3). 10.Starting with GPS week 0834, the IGS combined orbits/clocks and all centres providing both orbit and clock solutions are now further evaluated by an independent point positioning (navigation) program. See COMBINATION STRATEGY AND ORBIT COMBINATION AND EVALUATION STATISTICS sections for more details. Tables 4 and 5 show the evaluation results. ORBIT COMBINATION AND EVALUATION STATISTICS: Most combination statistics are with respect to the combined orbits and consist of five parts. The first, Table 1, summarizes all statistics for the week. It contains means and standard deviations over the week of satellite ephemeris and clock correction transformation parameters for each centre (table 1.0835.a). It also displays the computed satellite position sigmas for the combined orbits (table 1.0835.b). The second part, Table 2, contains the complete ephemeris and clock correction transformation parameters (includes both the apriori and a posteriori values) for each centre and each day (tables 2.0835.0-6). The third part, Table 3, contains two types of daily RMS for each satellite and centre, along with the computed satellite position sigmas for the combined orbits (tables 3.0835.0-6). The first type of satellite RMS is based on orbit combination and the second RMS type is a result of the 7-day arc evaluation of each centre ephemerides. The fourth part, Table 4, is a weekly summary of the daily precise navigation summaries for centres providing both orbit and clock solutions. It contains weekly station RMS w.r.t. the initial coordinates for the Latitude, Longitude and Height components for up to three IGS stations (table 4.0835). The fifth and final part, Table 5, is similar to Table 4 and contains daily precise navigation statistics (tables 5.0835.0-6). In tables 1-3, the most important statistic which is meaningful for intra centre/satellite analysis is labeled WRMS. It is a weighted RMS where normalized weights are based on accuracy codes given in the SP3 files, and should not be affected by downweighted/problem satellites when acknowledged by individual centres in their SP3 file. Table 1: Week 0835 summary. (Jan 07, 1996 - Jan 13, 1996) Table 1.0835.a GPS week: 0835 MJD: 50089.0-50095.0 Mean and standard deviations of transformation parameters. WRMS - orbit RMS weighted by the SP3 header accuracy codes. STA - Mean number of stations in the daily solutions. Units: meters, mas, ppb, nano-sec, nano-sec/day. CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 59 | .00 .02 .01 -.21 -.17 -.33 .0 .06 .06 | 3.8 -2.0 1.8 | .00 .00 .01 .08 .17 .19 .1 | 6.7 6.2 emr 25 | .01 -.03 -.01 .30 -.12 .35 .0 .11 .10 | 93.6 16.9 1.1 | .01 .01 .00 .23 .18 .19 .1 | 32.2 7.4 esa 41 | .01 -.02 -.04 .46 .22 .14 .1 .16 .15 | -2.0 -7.4 13.3 | .01 .01 .01 .27 .37 .49 .2 | 16.6 6.5 gfz 41 |-.03 -.03 -.01 .07 -.05 -.12 -.3 .11 .11 | 96.7 17.4 7.9 | .01 .01 .01 .08 .08 .18 .1 | 34.1 10.1 jpl 37 | .00 .02 -.01 -.13 -.05 .10 .2 .08 .08 | 96.0 16.7 .9 | .01 .01 .01 .11 .09 .12 .1 | 32.3 7.3 ngs 42 | .02 -.02 .01 .29 .65 .18 -.110.53 7.36 | -17.1 30.5 302.9 | .01 .01 .01 .24 .25 .27 .1 | 50.6 86.5 sio 101|-.01 .03 .02 -.25 -.11 -.07 .210.54 7.64 | .0 .0 .0 | .01 .00 .01 .18 .05 .35 .1 | .0 .0 Table 1.0835.b GPS week : 0835 MJD: 50089.0-50095.0 Satellite position sigmas for the combined orbits (coded in the IGS SP3 orbit files). "E" flags eclipsing satellites. Units: cm. Day of GPS week PRN | 0 1 2 3 4 5 6 | Remarks ------|-----------------------------|------------------------------------------ 1 | 3 3 3 3 3 3 3 | 2E | 5 4 4 4 3 3 3 | 4 | 4 3 3 3 4 4 4 | 5E | 4 3 3 3 4 4 3 | 6 | 3 4 4 3 3 3 3 | 7 | 3 3 3 3 3 3 4 | 9 | 3 4 4 4 3 3 3 | 12 | 3 3 3 3 3 3 4 | Low tracking on days 0-6. 14 | 3 3 3 2 3 3 4 | 15 | 4 4 4 3 3 4 4 | 16 | 4 3 3 3 3 3 3 | 17 | 4 5 4 3 4 4 4 | 18 | 2 2 2 2 3 3 3 | 19 | 3 3 3 2 3 3 3 | 20E | 6 3 4 4 5 5 6 | 21E | 4 3 3 3 5 5 5 | 22E | 4 4 3 4 4 4 4 | 23E | 4 2 5 4 5 6 4 | 24 | 4 7 8 4 4 4 4 | 25 | 3 3 2 3 4 3 4 | 26 | 3 2 4 3 3 5 3 | 27 | 2 3 3 3 3 3 3 | 28 | 4 4 3 3 3 3 3 | 29 | 2 2 3 2 2 2 3 | 31 | 4 3 4 3 3 3 3 | Table 2: Daily transformation of each centre to the combined IGS orbit and clocks for each day of the week. The transformation displayed is the sum of a priori and estimated transformations. WRMS - RMS weighted by the centres SP3 header accuracy codes. STA - Number of stations in the daily solutions. Units: meters, mas, ppb, nano-sec, nano-sec/day. Table 2.0835.0 GPS week: 0835 Day: 0 MJD: 50089.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 60 | .00 .02 .01 -.28 -.08 -.17 .0 .06 .05 | -3.9 2.1 1.7 emr 27 |-.01 -.04 -.01 .52 -.14 .23 -.1 .10 .10 | 44.8 20.8 .9 esa 44 |-.01 -.03 -.04 .05 .21 .80 .1 .18 .15 | 21.0 -12.7 14.1 gfz 41 |-.03 -.03 .00 .06 -.01 -.39 -.2 .13 .12 | 45.9 27.9 10.0 jpl 37 | .01 .02 -.02 .02 -.18 -.03 .2 .08 .08 | 47.3 20.6 .8 ngs 42 | .02 -.03 .00 .21 1.04 .19 .1 .14 .14 | -2.0 4.2 76.2 sio 98 |-.01 .03 .02 -.15 -.17 -.14 .1 .09 .09 | .0 .0 .0 Table 2.0835.1 GPS week: 0835 Day: 1 MJD: 50090.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 59 | .01 .02 .01 -.26 .03 -.21 .1 .05 .05 | 8.1 -3.4 1.7 emr 25 | .00 -.03 -.02 .43 -.30 .14 -.2 .09 .09 | 62.4 24.1 1.0 esa 44 | .01 -.02 -.01 .31 -.17 -.56 .1 .16 .14 | -9.5 -.7 14.0 gfz 42 |-.02 -.03 -.01 .09 .04 -.17 -.3 .09 .08 | 64.5 28.6 8.6 jpl 37 | .01 .03 -.02 .00 -.04 .05 .3 .09 .09 | 64.8 24.1 .7 ngs 41 | .03 -.03 .02 .30 .76 .13 -.127.8719.47 | -3.0 7.4 75.6 sio 101|-.02 .02 .03 -.53 -.01 .51 .127.8820.22 | .0 .0 .0 Table 2.0835.2 GPS week: 0835 Day: 2 MJD: 50091.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 57 | .00 .02 .02 -.30 -.24 -.35 -.1 .06 .05 | 10.3 -4.7 1.9 emr 25 | .00 -.04 -.01 -.03 .12 .64 .0 .11 .11 | 79.7 19.3 1.5 esa 40 | .00 -.03 -.03 .70 .12 .45 .2 .16 .14 | -14.3 -8.2 14.3 gfz 41 |-.03 -.03 -.01 .13 -.10 -.29 -.4 .12 .12 | 77.7 24.9 6.1 jpl 37 | .00 .03 -.01 -.16 -.03 .24 .2 .07 .07 | 82.2 19.2 1.3 ngs 42 | .03 -.03 .01 .66 .45 .17 -.1 .12 .12 | 2.6 -3.1 76.1 sio 96 |-.01 .03 .01 -.16 -.11 -.50 .3 .09 .09 | .0 .0 .0 Table 2.0835.3 GPS week: 0835 Day: 3 MJD: 50092.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 58 | .00 .02 .01 -.14 -.35 -.31 .1 .07 .05 | 12.2 -9.1 1.6 emr 25 | .01 -.03 -.01 .17 .01 .20 -.1 .10 .10 | 103.8 4.0 1.0 esa 43 | .01 -.02 -.05 .53 .02 .47 .0 .14 .15 | .4 -19.0 17.3 gfz 41 |-.03 -.03 .00 .09 -.08 .00 -.3 .09 .09 | 110.2 2.5 6.8 jpl 37 | .01 .02 -.01 -.27 .05 .03 .2 .07 .07 | 106.1 4.0 .8 ngs 42 | .01 -.03 .01 .16 .79 .65 -.2 .11 .12 | 7.7 -9.7 76.5 sio 99 |-.01 .02 .01 .01 -.13 -.50 .2 .09 .08 | .0 .0 .0 Table 2.0835.4 GPS week: 0835 Day: 4 MJD: 50093.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 59 | .00 .03 .00 -.15 -.29 -.62 .0 .07 .06 | 3.7 -8.3 1.6 emr 27 | .01 -.04 -.01 .19 -.20 .48 .0 .12 .11 | 109.3 15.9 .9 esa 40 | .01 -.03 -.05 .43 .80 .24 -.2 .14 .13 | -9.1 -2.2 18.0 gfz 43 |-.03 -.02 -.01 .08 -.17 -.10 -.4 .10 .10 | 116.1 10.6 7.2 jpl 37 | .01 .02 .00 -.21 .05 .04 .2 .06 .06 | 111.7 15.9 .8 ngs 43 | .01 -.02 -.01 .58 .45 .33 -.1 .13 .15 | 6.0 -7.2 78.1 sio 106|-.02 .03 .03 -.35 -.11 .06 .3 .09 .09 | .0 .0 .0 Table 2.0835.5 GPS week: 0835 Day: 5 MJD: 50094.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 61 | .00 .02 .00 -.11 -.31 -.54 .1 .08 .07 | .5 .8 1.7 emr 24 | .01 -.02 -.01 .22 .00 .52 .1 .11 .11 | 123.4 10.7 .9 esa 40 | .01 -.03 -.05 .88 .64 -.09 .3 .19 .16 | -21.9 -4.5 2.4 gfz 40 |-.02 -.03 -.01 .17 -.08 .11 -.2 .11 .10 | 125.3 9.9 6.8 jpl 37 | .00 .02 .00 -.16 -.03 .08 .2 .08 .08 | 125.9 10.1 .8 ngs 43 | .01 -.01 .01 .19 .32 .03 -.1 .11 .11 | -131.6 226.2 779.1 sio 102|-.02 .02 .02 -.38 -.14 .08 .0 .09 .08 | .0 .0 .0 Table 2.0835.6 GPS week: 0835 Day: 6 MJD: 50095.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- cod 58 | .00 .02 .01 -.23 .05 -.13 .1 .06 .06 | -4.2 8.2 2.0 emr 25 | .01 -.03 -.01 .62 -.36 .26 .1 .10 .10 | 131.6 23.8 1.5 esa 39 | .02 -.01 -.05 .33 -.07 -.34 .3 .17 .14 | 19.4 -4.4 4.1 gfz 39 |-.02 -.01 -.01 -.10 .04 -.01 -.5 .15 .14 | 136.8 17.4 9.0 jpl 37 |-.01 .01 -.01 -.13 -.15 .29 -.1 .09 .09 | 134.2 23.1 1.3 ngs 41 | .02 -.02 .01 -.03 .71 -.25 .0 .11 .11 | .6 -4.2 77.1 sio 103| .00 .03 .02 -.16 -.12 .02 .3 .11 .10 | .0 .0 .0 Table 3: Daily fit for each satellite and each centre resulting from weighted average combination and from long arc orbit dynamics (7-day). The first IGS column gives resulting satellite accuracy measures found in SP3 header. The last IGS column gives the RMS fit of the IGS orbit when processed through the 7-day arc evaluation. "E" stands for eclipsing satellites. "T" stands for Total long arc orbit RMS for all satellites. "NE" stands for long arc orbit RMS for Non-Eclipsing satellites only. Units: cm. Table 3.0835.0 GPS week: 0835 Day: 0 MJD: 50089.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 5 9 9 13 6 9 6 3 | 4 8 10 8 6 15 7 4 2E | 10 8 26 13 6 21 6 5 | 13 19 18 16 15 30 14 14 4 | 5 17 19 9 6 17 6 4 | 5 10 15 12 8 10 5 6 5E | 7 10 16 16 6 13 13 4 | 8 14 13 18 8 13 12 10 6 | 2 10 8 12 6 11 10 3 | 3 11 15 11 8 11 5 5 7 | 6 7 12 7 7 11 5 3 | 5 11 14 12 6 15 8 6 9 | 3 6 15 10 9 11 7 3 | 7 9 12 10 6 13 6 6 12 | 5 7 14 9 8 9 9 3 | 5 11 11 8 11 15 12 7 14 | 4 7 20 8 5 8 5 3 | 5 11 13 13 6 16 6 7 15 | 4 14 15 16 8 12 8 4 | 7 17 14 21 6 19 5 9 16 | 6 9 20 14 6 16 9 4 | 4 9 10 10 7 18 5 6 17 | 6 10 13 12 5 24 13 4 | 4 14 18 13 6 17 8 6 18 | 3 6 12 7 4 6 5 2 | 6 9 9 8 9 11 5 5 19 | 6 6 15 9 8 13 5 3 | 5 10 11 11 8 12 7 7 20E | 7 11 29 23 6 20 13 6 | 8 14 14 18 7 17 9 8 21 | 5 8 21 14 5 13 8 4 | 7 11 12 12 6 21 8 7 22E | 5 7 12 11 7 14 13 4 | 8 13 12 12 7 15 9 8 23 | 9 15 12 11 9 10 7 4 | 14 20 15 10 21 18 15 15 24 | 8 9 30 14 5 11 6 4 | 1 9 2 2 2 13 7 1 25 | 4 12 11 8 6 13 7 3 | 7 9 13 10 10 10 8 7 26 | 5 7 17 12 8 9 7 3 | 8 12 9 7 13 18 12 8 27 | 3 7 14 6 8 7 6 2 | 4 11 8 10 7 11 8 6 28 | 5 9 9 14 18 14 9 4 | 4 12 12 13 6 15 6 6 29 | 3 8 18 7 3 6 4 2 | 6 9 10 11 7 13 7 5 31 | 5 10 16 13 7 11 11 4 | 4 11 13 14 7 15 7 6 ------|----------------------------------|---------------------------------- RMS | 5 9 17 12 7 13 8 |T 6 12 12 12 8 15 8 7 WRMS | 5 9 15 11 8 13 8 |NE 6 11 12 11 8 14 7 6 Table 3.0835.1 GPS week: 0835 Day: 1 MJD: 50090.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 6 5 12 5 4 19 11 3 | 2 7 12 5 4 14 13 4 2E | 9 9 21 10 7 19 10 4 | 9 15 14 15 12 22 13 10 4 | 5 8 16 8 7 12 9 3 | 4 11 16 13 7 12 8 7 5E | 5 10 10 10 9 11 8 3 | 7 14 14 14 7 14 7 8 6 | 4 19 13 7 8 8 12 4 | 8 27 17 13 8 14 7 10 7 | 4 10 23 7 7 10 9 3 | 3 13 17 12 4 11 11 6 9 | 5 6 36 6 12 11 8 4 | 5 7 12 10 5 13 6 4 12 | 6 8 15 4 10 15 9 3 | 6 8 13 9 8 13 10 6 14 | 4 7 10 6 8 10 9 3 | 5 12 16 12 6 14 11 7 15 | 7 8 18 13 12 12 9 4 | 6 14 19 20 6 17 7 8 16 | 4 6 13 8 7 19 9 3 | 4 11 15 13 8 20 11 6 17 | 6 11 15 9 7 30 13 5 | 6 16 20 15 5 23 8 8 18 | 3 5 7 5 7 9 7 2 | 5 8 10 7 8 11 6 4 19 | 5 10 13 10 7 13 6 3 | 3 10 11 8 7 10 4 5 20E | 3 10 13 12 8 16 8 3 | 5 16 16 15 5 12 8 6 21 | 4 9 14 7 6 9 8 3 | 6 13 15 12 5 12 9 7 22E | 4 5 15 8 8 18 15 4 | 6 11 21 11 6 22 13 6 23 | 3 9 11 3 6 12 6 2 | 11 18 12 12 16 12 11 12 24 | --- 7 8 --- --- >>> >>> 7 | --- 8 0 --- --- 12 7 --- 25 | 5 5 8 6 11 11 10 3 | 4 8 11 6 13 11 10 5 26 | 6 7 10 7 7 8 5 2 | 5 7 14 9 7 11 11 4 27 | 3 9 22 8 7 11 8 3 | 4 12 15 7 7 10 5 4 28 | 5 9 11 10 11 17 11 4 | 4 14 16 13 5 13 9 5 29 | 2 7 8 4 6 11 8 2 | 4 7 13 7 7 17 7 4 31 | 5 9 16 10 8 7 7 3 | 5 14 15 13 6 12 6 6 ------|----------------------------------|---------------------------------- RMS | 5 9 16 8 8 >>> >>> |T 5 12 15 11 7 14 9 6 WRMS | 5 9 13 8 8 >>> >>> |NE 5 12 14 11 7 13 8 6 Table 3.0835.2 GPS week: 0835 Day: 2 MJD: 50091.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 3 6 10 10 3 6 11 3 | 3 4 12 7 5 10 12 3 2E | 6 10 20 8 7 14 6 4 | 8 15 17 14 9 18 10 9 4 | 4 8 16 14 7 14 6 3 | 4 11 14 14 7 14 5 5 5E | 5 11 13 12 6 10 10 3 | 9 14 16 17 7 14 8 8 6 | 5 18 16 11 10 9 8 4 | 7 21 12 13 6 15 4 6 7 | 4 5 15 9 6 14 9 3 | 4 12 17 13 5 15 9 5 9 | 4 13 21 11 9 8 9 4 | 5 13 10 11 5 10 5 4 12 | 5 7 18 7 8 9 8 3 | 5 10 14 11 7 9 9 5 14 | 5 8 16 11 6 11 7 3 | 5 12 15 14 6 15 7 7 15 | 7 9 18 16 9 15 6 4 | 5 16 19 21 5 22 6 8 16 | 6 15 11 11 5 12 6 3 | 8 16 18 11 8 21 9 10 17 | 7 10 17 11 6 11 11 4 | 7 15 20 14 6 24 8 7 18 | 4 7 7 5 4 10 9 2 | 4 10 9 7 7 15 6 4 19 | 5 8 15 9 8 10 9 3 | 4 11 10 9 10 14 8 6 20E | 4 11 16 16 7 16 10 4 | 7 13 18 17 7 13 6 8 21 | 5 9 8 12 5 10 7 3 | 5 14 13 15 6 13 6 6 22E | 4 7 18 10 7 13 11 3 | 9 14 22 13 7 20 7 9 23 | 8 27 17 6 5 9 11 5 | 15 35 17 20 22 21 19 19 24 | --- 11 13 23 --- 8 --- 8 | --- 15 15 13 --- 14 --- 10 25 | 4 6 14 6 6 7 6 2 | 4 7 17 9 7 8 6 5 26 | 6 10 7 10 8 15 12 4 | 5 8 8 11 9 13 11 5 27 | 3 9 15 8 5 6 6 3 | 4 11 10 9 7 9 6 4 28 | 4 11 13 12 7 10 8 3 | 4 15 14 12 5 17 5 6 29 | 5 5 8 8 3 15 7 3 | 4 7 9 10 7 14 8 5 31 | 5 11 23 9 10 17 7 4 | 5 15 14 13 6 20 4 6 ------|----------------------------------|---------------------------------- RMS | 5 11 15 11 7 12 9 |T 6 14 14 13 8 15 8 7 WRMS | 5 11 14 11 7 12 9 |NE 5 14 14 12 8 15 8 7 Table 3.0835.3 GPS week: 0835 Day: 3 MJD: 50092.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 4 5 18 9 8 13 6 3 | 4 8 16 8 7 13 10 5 2E | 8 14 11 7 9 14 4 4 | 10 15 17 15 12 24 12 11 4 | 4 6 16 8 5 8 5 3 | 4 10 14 13 5 10 8 5 5E | 6 8 9 11 4 8 13 3 | 8 14 14 16 7 12 12 8 6 | 6 11 11 9 8 6 6 3 | 5 13 14 12 7 13 6 7 7 | 5 6 15 7 7 12 6 3 | 4 11 16 12 5 15 5 7 9 | 4 8 22 10 9 11 8 4 | 5 9 10 14 7 13 5 5 12 | 6 7 15 3 5 7 6 3 | 10 10 12 10 8 9 9 7 14 | 5 5 8 8 5 8 8 2 | 5 11 12 13 6 13 7 6 15 | 5 9 9 11 8 13 8 3 | 4 14 12 17 6 19 6 7 16 | 4 7 19 9 4 10 7 3 | 4 13 18 10 6 16 5 7 17 | 4 9 12 11 7 12 10 3 | 6 13 16 14 6 15 7 6 18 | 5 5 7 6 3 10 8 2 | 5 9 13 9 7 13 7 6 19 | 6 7 6 7 4 6 8 2 | 4 11 14 10 7 10 9 6 20E | 5 12 11 13 8 14 10 4 | 7 15 19 19 7 11 8 8 21 | 5 11 13 12 6 13 7 3 | 6 15 12 18 8 16 8 8 22E | 5 11 14 12 7 12 14 4 | 9 18 20 11 7 15 11 8 23 | 9 21 9 9 8 14 6 4 | 15 10 14 10 14 11 15 11 24 | 15 8 15 9 6 12 6 4 | 16 14 18 10 6 11 6 7 25 | 5 6 22 5 7 8 6 3 | 8 8 16 11 9 10 7 7 26 | 6 9 14 10 6 9 9 3 | 4 10 18 10 7 10 8 5 27 | 5 9 21 7 3 8 7 3 | 4 11 13 9 5 9 7 5 28 | 4 11 9 10 8 11 8 3 | 3 16 12 12 7 12 4 6 29 | 4 4 12 7 3 7 7 2 | 4 7 17 10 5 10 7 5 31 | 5 10 12 8 7 9 11 3 | 3 16 12 13 7 15 7 6 ------|----------------------------------|---------------------------------- RMS | 6 9 14 9 6 11 8 |T 7 12 14 12 7 13 8 6 WRMS | 5 9 15 9 6 11 8 |NE 6 11 14 11 7 12 7 6 Table 3.0835.4 GPS week: 0835 Day: 4 MJD: 50093.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 8 9 15 6 7 7 6 3 | 3 10 16 8 7 9 9 5 2E | 7 8 15 9 6 15 6 3 | 10 18 15 17 10 19 17 13 4 | 7 7 15 13 5 9 11 4 | 4 10 23 15 6 13 11 6 5E | 6 19 14 12 4 9 10 4 | 8 21 18 16 9 15 10 9 6 | 5 10 11 11 9 10 9 3 | 5 12 13 12 8 14 6 6 7 | 6 10 13 8 6 7 4 3 | 4 14 19 13 6 11 7 7 9 | 4 7 16 9 7 10 7 3 | 4 7 10 13 6 10 6 5 12 | 4 7 12 5 4 15 7 3 | 9 8 10 11 7 19 8 8 14 | 5 7 8 8 4 10 10 3 | 7 11 15 13 5 14 5 7 15 | 6 9 15 12 6 9 8 3 | 5 15 22 17 6 17 6 8 16 | 3 9 8 10 5 14 6 3 | 6 12 17 11 8 19 3 8 17 | 8 9 12 10 5 22 7 4 | 7 14 19 15 7 22 5 8 18 | 5 9 10 9 4 8 6 3 | 3 12 9 10 6 11 5 5 19 | 5 6 12 7 6 6 8 3 | 3 10 12 10 8 9 10 5 20E | 6 18 14 13 6 15 14 5 | 12 17 19 21 11 18 8 10 21 | 8 11 15 12 7 27 5 5 | 9 16 13 15 6 31 11 8 22E | 6 10 20 11 5 17 9 4 | 7 16 21 12 8 16 7 8 23 | 12 26 14 10 8 17 12 5 | 18 24 12 15 17 20 20 16 24 | 5 12 13 14 5 10 6 4 | 7 13 15 14 4 13 5 5 25 | 6 17 16 8 7 12 9 4 | 6 21 14 10 8 16 7 7 26 | 8 13 5 8 6 13 8 3 | 4 11 11 9 8 11 8 5 27 | 6 6 23 8 6 5 5 3 | 4 8 12 10 8 8 5 5 28 | 6 8 13 8 6 12 8 3 | 3 13 14 10 7 11 5 6 29 | 5 7 10 5 5 7 9 2 | 5 9 13 9 6 10 7 4 31 | 5 10 7 8 6 8 10 3 | 4 18 12 12 7 13 6 7 ------|----------------------------------|---------------------------------- RMS | 6 12 14 10 6 13 8 |T 7 14 15 13 7 15 8 7 WRMS | 6 11 12 10 6 14 8 |NE 6 13 14 12 7 15 8 7 Table 3.0835.5 GPS week: 0835 Day: 5 MJD: 50094.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 6 6 11 7 4 13 7 3 | 4 7 8 8 6 13 8 4 2E | 9 9 11 10 7 13 7 3 | 13 20 19 17 11 24 15 14 4 | 6 18 17 15 6 11 7 4 | 4 14 18 14 7 13 7 6 5E | 6 11 20 13 6 10 6 4 | 7 14 17 18 8 13 9 8 6 | 3 9 19 8 6 7 7 3 | 6 13 15 11 6 14 5 7 7 | 5 10 24 10 6 8 8 3 | 5 13 20 14 5 11 4 6 9 | 7 7 13 11 7 9 5 3 | 3 8 11 11 6 11 6 5 12 | 6 5 19 7 8 4 8 3 | 6 10 19 9 7 10 11 6 14 | 4 6 29 6 6 9 9 3 | 5 11 18 12 6 12 8 7 15 | 7 17 10 10 8 14 6 4 | 5 15 13 14 5 15 8 7 16 | 8 11 11 7 6 10 6 3 | 7 15 13 10 9 11 7 6 17 | 6 11 18 11 6 11 11 4 | 7 14 17 18 11 18 7 9 18 | 7 9 15 8 4 6 6 3 | 3 11 8 8 5 10 3 4 19 | 6 12 8 9 4 9 11 3 | 3 11 12 10 6 9 10 5 20E | 11 13 20 19 6 13 9 5 | 8 17 17 23 9 21 8 9 21E | 7 10 37 13 7 13 6 5 | 12 20 17 12 11 22 9 11 22E | 4 9 15 18 7 12 10 4 | 9 19 19 18 8 17 10 11 23 | 17 14 38 11 13 15 6 6 | 23 27 24 22 34 41 35 28 24 | 6 12 15 12 5 12 7 4 | 4 16 14 11 7 13 7 5 25 | 6 8 17 6 7 11 9 3 | 4 15 12 9 10 14 8 7 26 | 13 13 15 8 15 9 15 5 | 8 14 15 10 15 13 13 6 27 | 5 8 12 10 6 5 9 3 | 4 9 10 9 5 8 6 5 28 | 5 6 10 9 9 12 13 3 | 4 12 12 11 7 11 10 5 29 | 4 7 13 5 3 10 6 2 | 5 9 8 10 6 12 5 5 31 | 8 8 7 10 5 7 4 3 | 2 16 13 15 6 12 7 7 ------|----------------------------------|---------------------------------- RMS | 7 10 19 11 7 10 8 |T 7 14 15 13 10 16 10 9 WRMS | 6 10 15 10 7 11 8 |NE 7 13 14 12 10 15 10 8 Table 3.0835.6 GPS week: 0835 Day: 6 MJD: 50095.0 Weighted Average Orbit Dynamics (7 days) PRN | cod emr esa gfz jpl ngs sio IGS | cod emr esa gfz jpl ngs sio IGS ------|----------------------------------|---------------------------------- 1 | 3 11 10 15 9 7 13 3 | 4 8 13 10 11 8 15 5 2E | 4 10 14 11 8 7 8 3 | 14 20 20 17 17 20 16 16 4 | 5 8 27 16 11 8 12 4 | 4 12 24 16 16 10 11 8 5E | 3 7 12 16 7 9 10 3 | 14 13 17 23 13 13 8 12 6 | 5 8 19 10 9 9 9 3 | 5 10 17 12 6 14 7 6 7 | 4 11 20 12 9 11 12 4 | 4 15 21 13 10 13 8 7 9 | 4 7 13 14 11 7 7 3 | 5 8 15 15 13 9 5 6 12 | 7 9 18 14 5 11 8 4 | 10 9 19 15 11 11 12 9 14 | 6 6 13 11 5 14 16 4 | 9 14 19 16 11 12 14 9 15 | 7 9 16 11 9 14 8 4 | 5 16 16 18 8 18 7 9 16 | 3 10 14 10 10 12 8 3 | 6 18 20 11 8 13 8 8 17 | 6 11 23 17 9 11 7 4 | 6 13 18 17 7 15 7 6 18 | 4 9 15 9 5 4 8 3 | 4 9 10 10 6 9 5 4 19 | 4 9 9 13 6 8 9 3 | 4 9 15 10 7 10 8 6 20E | 3 16 27 32 12 17 15 6 | 16 17 32 32 19 14 7 12 21E | 5 14 20 20 11 20 7 5 | 11 17 16 24 14 22 13 12 22E | 7 10 10 15 6 13 16 4 | 12 18 20 16 12 14 10 11 23E | 5 16 12 16 9 15 12 4 | 14 22 28 20 17 29 22 19 24 | 5 9 17 15 8 12 7 4 | 5 14 14 15 9 11 6 7 25 | 5 6 20 8 7 11 15 4 | 8 12 16 11 11 15 12 8 26 | 7 9 12 9 7 12 9 3 | 7 6 14 11 11 13 6 6 27 | 5 7 9 10 7 7 7 3 | 5 11 14 12 12 11 7 8 28 | 4 11 7 8 7 8 7 3 | 4 9 12 11 4 12 7 5 29 | 5 6 14 7 5 7 9 3 | 7 8 11 14 7 10 9 5 31 | 7 8 9 7 6 6 6 3 | 4 16 12 14 12 14 8 9 ------|----------------------------------|---------------------------------- RMS | 5 10 16 14 8 11 10 |T 8 13 18 16 11 14 10 9 WRMS | 5 10 14 13 8 11 9 |NE 5 11 16 13 9 12 8 7 Table 4: Precise Navigation Summary. Weekly station RMS w.r.t. the initial coordinates for the Latitude, Longitude and Height components. See Table 5 for the daily summary. CLK - Satellite clocks used. EPO - Mean number of satellite clock epochs available in the daily solutions. U - Station Used in centre's solution (at least one day). Units: centimetres. Table 4.0835 GPS week: 0835 MJD: 50089.0-50095.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 2012 |U 59 37 103 |U 55 40 105 | 45 31 81 | emr | emr 2360 | 54 37 96 | 38 35 78 |U 42 24 72 | esa | esa 2014 | 419 269 826 |U 397 245 765 | 453 257 566 | gfz | gfz 1193 | 252 139 445 |U 236 113 382 | 204 117 250 | igs | igs 2396 | 47 33 84 | 48 39 91 | 39 22 68 | jpl | jpl 2307 |U 42 28 72 |U 34 31 66 | 32 20 50 | Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit positions and satellite clock corrections at 15 min intervals. Each line gives the daily station RMS w.r.t. the initial coordinates for the Latitude, Longitude and Height components. CLK - Satellite clocks used. EPO - Number of satellite clock epochs available for that day. Units: centimetres. Table 5.0835.0 GPS week: 0835 Day: 0 MJD: 50089.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 2067 | 67 44 107 | 44 34 115 | 44 35 87 | emr | emr 2372 | 52 43 97 | 31 31 81 | 43 23 68 | esa | esa 2071 | 444 250 966 | 436 219 758 | 488 254 545 | gfz | gfz 1200 | 314 202 603 | 327 144 474 | 252 156 295 | igs | igs 2397 | 44 36 83 | 28 26 73 | 33 24 54 | jpl | jpl 2330 | 45 31 85 | 26 26 65 | 40 26 54 | Table 5.0835.1 GPS week: 0835 Day: 1 MJD: 50090.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 1978 | 65 34 112 | 52 32 85 | 41 32 75 | emr | emr 2350 | 63 38 103 | 41 32 77 | 37 23 68 | esa | esa 2014 | 437 273 993 | 395 261 747 | 495 267 525 | gfz | gfz 1152 | 389 200 641 | 240 117 441 | 266 145 254 | igs | igs 2398 | 57 44 94 | 56 53 94 | 39 23 68 | jpl | jpl 2167 | 40 26 66 | 35 23 63 | 28 22 50 | Table 5.0835.2 GPS week: 0835 Day: 2 MJD: 50091.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 1986 | 61 36 104 | 52 41 113 | 52 28 81 | emr | emr 2366 | 56 35 94 | 36 35 94 | 40 26 75 | esa | esa 2037 | 446 362 927 | 440 321 874 | 429 190 495 | gfz | gfz 1200 | 258 144 508 | 286 118 442 | 164 88 186 | igs | igs 2390 | 51 32 109 | 65 51 114 | 31 19 45 | jpl | jpl 2247 | 50 28 75 | 33 28 76 | 32 20 47 | Table 5.0835.3 GPS week: 0835 Day: 3 MJD: 50092.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 2081 | 54 32 97 | 66 59 115 | 52 32 95 | emr | emr 2360 | 48 28 96 | 45 56 98 | 44 25 72 | esa | esa 2087 | 584 394 999 | 500 333 999 | 587 315 676 | gfz | gfz 1200 | 170 92 237 | 208 112 323 | 164 101 219 | igs | igs 2398 | 35 22 70 | 47 52 88 | 33 18 55 | jpl | jpl 2381 | 38 24 69 | 47 54 86 | 34 21 52 | Table 5.0835.4 GPS week: 0835 Day: 4 MJD: 50093.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 2074 | 64 39 106 | 52 34 90 | 40 27 68 | emr | emr 2370 | 54 37 97 | 33 27 60 | 39 22 70 | esa | esa 2084 | 517 271 961 | 516 282 973 | 603 415 872 | gfz | gfz 1200 | 208 96 322 | 194 80 331 | 197 111 234 | igs | igs 2396 | 44 31 76 | 33 21 59 | 25 14 43 | jpl | jpl 2378 | 39 28 72 | 32 18 54 | 28 16 45 | Table 5.0835.5 GPS week: 0835 Day: 5 MJD: 50094.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 1705 | 51 35 104 | 59 33 107 | 43 37 79 | emr | emr 2332 | 54 37 94 | 37 27 68 | 44 23 71 | esa | esa 1852 | 144 81 239 | 72 45 135 | 38 30 90 | gfz | gfz 1200 | 149 84 304 | 182 101 293 | 196 97 270 | igs | igs 2394 | 47 35 82 | 35 19 57 | 28 16 49 | jpl | jpl 2258 | 36 24 64 | 30 18 57 | 28 17 50 | Table 5.0835.6 GPS week: 0835 Day: 6 MJD: 50095.0 CENT| CLK EPO | BRUS | USUD | WILL | ----|----------|----------------|----------------|----------------| cod | cod 2196 | 49 39 87 | 54 38 105 | 42 26 79 | emr | emr 2373 | 49 36 90 | 43 28 61 | 48 24 81 | esa | esa 1956 | 112 41 121 | 206 95 488 | 244 139 445 | gfz | gfz 1200 | 188 97 321 | 171 110 328 | 165 106 277 | igs | igs 2399 | 50 28 66 | 61 36 128 | 69 35 123 | jpl | jpl 2390 | 42 33 72 | 33 31 54 | 33 14 51 |