Subject: [IGSREPORT-0770] IGS Rapid Orbit Comb(733)
From: Analysis Centres Coordinator / Geodetic Survey of Canada
Date: Tue, 8 Feb 1994 5:11:22 PST

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IGS Electronic Report    Tue Feb  8  5:11:22 PST 1994      Message Number 0770
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Author: Analysis Centres Coordinator / Geodetic Survey of Canada
Subject: IGS Rapid Orbit Comb(733)

Rapid Service IGS Orbit Combination - Week 0733   (Jan 23, 1994 - Jan 29, 1994)

Contacts: F. Lahaye ([email-masked]), J. Kouba ([email-masked])

COMBINATION STRATEGY:

Each centre ephemeris and satellite clock corrections are first transformed to
common reference. The differences between each centre X and Y pole solutions
and the IERS Bull. A are used to rotate the corresponding ephemeris. If the
pole solution is not available for a particular centre, no such rotations are
applied. For each centre, a clock offset and drift, common for all satellites,
are estimated with respect to broadcast clock corrections. 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. Currently the weights are computed from the RMS fit to the
unweighted average orbit and satellite clocks, after the estimation of a
7-parameter Helmert transformation (in the case of ephemeris) and offsets and
drifts (in the case of clocks). The above estimations are performed using the
L1-norm robust scheme. Each centre ephemeris are also evaluated individually
and independently from the orbit combination by using week long arcs.
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 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 Rapid Service Orbit files generated and uploaded into CDDIS @ NASA/GSFC
are:

 IGS07330-6.SP3  IGS GPS ephemeris files for days 0-6, week 0733 in SP3 format.
 IGS07337.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS07337.SUM    Complete report.

REMARKS on IGS orbit combination:

1. Starting with week 0730, the above satellite clock corrections combination
   was put in place. The centres used in the combination are EMR, ESA, GFZ and
   JPL. The other centres are excluded because they either provide broadcast
   clocks (COD) or clock corrections are not provided (NGS & SIO). The clock
   information not used is still compared to combination for completeness.

2. Only the GFZ "exact" clock corrections (one epoch out of two) are included
   in the combination and RMS computation (no "interpolation" values).

3. Starting with week 0733, ESA removes relativistic effects from their
   computed clock correction and thus are included in combination.

4. EMR satellite clock corrections were excluded from combination on days 2 and
   4 (Jan 25 and 27) due to unusually large RMS (~ 100 nanosec.).

5. COD satellite clock corrections (broadcast) exhibit breaks on day 2
   (Jan 25). Since COD values are used for alignment to broadcast clocks and 
   since ESA clocks are the closest to GPS time, all centres were initially 
   aligned to ESA on day 2 (Jan 25).

6. Exceptionaly and contrary to our usual practice of including all satellite
   orbital data submitted, PRN 24 was excluded from combination from day 2 and
   on (Jan 25-29). This is due to the inexistent or sparse tracking data
   internationaly obtained from this satellite during those days.
   Since the amount of data collected from PRN 24 during this time span is    
   very small, we assume this will not inconvenience IGS orbit users.

7. Satellite state vector resets were modeled for PRN02 and PRN05 on day 3
   (Jan 26) in the long-arc analysis.

ORBIT COMBINATION AND EVALUATION STATISTICS:

Most combination statistics are with respect to the combined orbits and consist
of three 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 1.0733.a).
It also displays the computed satellite position sigmas for the combined orbits
(table 1.0733.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 2.0733.0-6). The
third and final 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 3.0733.0-6). 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.
In all tables, 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 0733 summary.                       (Jan 23, 1994 - Jan 29, 1994)

Table 1.0733.a   GPS week: 0733   MJD: 49375.0-49381.0

         Mean and standard deviations of transformation parameters.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .00  .01  1.64  -.19   .15   .0   .12   .12 |   -5.2    4.3   74.4
    |  .01  .01  .01   .36   .11   .09   .3             |    6.3    9.9
emr |  .00  .00  .00  2.34   .74   .04  -.2   .10   .10 |  -86.0  -22.3   60.4
    |  .01  .00  .01   .47   .24   .20   .1             |  108.4   38.7
esa |  .01  .00  .02  1.90  -.27  -.62   .0   .19   .17 |     .7     .4    2.3
    |  .01  .01  .01   .36   .34   .50   .2             |   10.4   11.1
gfz | -.03  .00  .01  1.51  1.74  -.30  -.6   .19   .12 |  -61.5  -16.7     .7
    |  .01  .01  .01   .34   .19   .23   .1             |   40.0   10.2
jpl | -.01  .04 -.01  1.54   .22  -.01   .1   .12   .12 |  -61.7  -17.2     .8
    |  .01  .01  .01   .51   .13   .10   .1             |   40.5   10.6
ngs |  .03 -.05 -.02   .89  -.96   .59  1.6   .75   .36 |     .0     .0     .0
    |  .01  .01  .03   .43   .45   .17   .3             |     .0     .0
sio |  .02 -.04 -.03  2.24   .50   .13   .4   .19   .19 |     .0     .0     .0
    |  .01  .02  .01   .29   .29   .08   .1             |     .0     .0

Table 1.0733.b   GPS week : 0733   MJD: 49375.0-49381.0

         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  |   5   4   5   5   5   4   5 |
   2E |   8   6   9   8   6   6   8 |
   3  |  51   4   4   5   4   4   4 |
   4  |   6   8   6   7   5   6   5 |
   5E |   7   7   7   6   9   6   6 |
   7  |   5   5   5   5   4   3   4 |
   9  |   4   5   4   5   5   8   4 |
  12  |   4   4   4   5   5   6   3 |
  13  |   6   7   5   6   5   5   3 |
  14  |   4   5   4   4   5   5   5 |
  15  |   5   5   6   5   5   5   6 |
  16  |   7   5   5   5   8   7   6 |
  17  |   4   5   4   4   4   4   4 |
  18  |   4   4   5   4   5   4   5 |
  19  |   4   4   4   3   4   4   3 |
  20E |   7   7   8   8   7  19  10 |
  21  |   5   6   5   5   5   5   4 |
  22E |   5   7   7   9  14   6   9 |
  23  |   6   8   7   6   5   6   5 |
  24  |   7  11 --- --- --- --- --- | Sparse or no tracking data on days 2-6.
  25  |   5   6   5   7   7   7   5 |
  26  |   6   6   6   6   5   5   6 |
  27  |   4   4   3   5   4   4   4 |
  28  |   3   4   4   5   5   5   4 |
  29  |   4   3   3   4   3   4   4 |
  31  |   4   5   5   5   5   5   5 |

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.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

Table 2.0733.0   GPS week: 0733   Day: 0   MJD: 49375.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .02  .00  .01  1.22  -.26   .31   .2   .12   .12 |    -.4   -3.4   75.1
emr | -.01  .00  .00  1.74   .65   .28  -.2   .11   .11 |   33.1  -13.9    1.3
esa |  .01 -.01  .04  1.87  -.55 -1.05   .3   .19   .19 |  -13.0  -11.9    3.3
gfz | -.03  .01  .01  1.55  1.84  -.53  -.5   .17   .15 |   -6.3  -24.2     .4
jpl | -.02  .04  .00  1.21   .31  -.11   .1   .11   .12 |   -5.7  -25.4    1.1
ngs |  .04 -.05  .01   .66 -1.49   .62  1.3  1.73   .65 |     .0     .0     .0
sio |  .02 -.03 -.03  2.54   .30   .19   .4   .18   .19 |     .0     .0     .0

Table 2.0733.1   GPS week: 0733   Day: 1   MJD: 49376.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .02 -.01  1.76  -.26   .12  -.1   .14   .14 |  -17.2   22.4   73.7
emr |  .01 -.01  .01  2.09   .41   .15  -.2   .09   .09 |   16.5  -27.2     .3
esa |  .00  .01  .02  2.07   .23  -.49  -.1   .20   .16 |   -8.2   -6.1    1.5
gfz | -.03  .01  .01  1.71  1.97  -.57  -.7   .16   .14 |  -28.7  -20.8     .4
jpl | -.01  .03  .00  1.69   .40  -.05   .0   .11   .11 |  -28.5  -21.2     .3
ngs |  .02 -.03  .00  1.17 -1.29   .35  2.0   .29   .26 |     .0     .0     .0
sio |  .01 -.04 -.04  2.53   .59   .05   .3   .17   .17 |     .0     .0     .0

Table 2.0733.2   GPS week: 0733   Day: 2   MJD: 49377.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .01  .01  1.87  -.23   .09   .1   .12   .13 |   -5.8    4.1   74.7
emr |  .00 -.01 -.01  3.06  1.00   .21  -.1   .09   .09 |  -47.6  -24.1  104.6
esa |  .02  .00  .01  2.35  -.31 -1.24  -.2   .17   .16 |     .2     .1    1.6
gfz | -.04  .00  .00  1.91  1.82  -.30  -.4   .14   .13 |  -55.1  -20.4     .4
jpl |  .00  .03  .00  2.08   .27   .04   .3   .12   .13 |  -55.4  -21.3     .7
ngs |  .03 -.04  .02  1.50  -.55   .80  1.2   .27   .26 |     .0     .0     .0
sio |  .03 -.02 -.03  2.38  1.01   .08   .3   .19   .19 |     .0     .0     .0

Table 2.0733.3   GPS week: 0733   Day: 3   MJD: 49378.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .00  .01  2.05  -.10   .05   .3   .12   .11 |   -4.9    7.6   76.4
emr |  .01 -.01  .00  2.71   .79  -.09   .0   .10   .10 | -118.6  -63.9     .4
esa |  .01 -.01  .01  2.16  -.16  -.22   .0   .16   .15 |     .9    8.7    1.5
gfz | -.02  .00  .01  1.62  1.76  -.05  -.6   .14   .10 |  -76.2  -11.4    1.0
jpl | -.02  .06 -.01  1.99   .09  -.01   .3   .13   .13 |  -76.6  -11.8     .3
ngs |  .03 -.04 -.04   .52 -1.17   .43  1.5   .30   .29 |     .0     .0     .0
sio |  .02 -.06 -.03  2.06   .49   .14   .3   .20   .20 |     .0     .0     .0

Table 2.0733.4   GPS week: 0733   Day: 4   MJD: 49379.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01 -.01  .02  1.78  -.29   .19  -.4   .12   .11 |    -.8   -1.4   72.9
emr |  .00  .00  .01  2.16   .57  -.20  -.1   .09   .09 | -146.5  -51.4  104.7
esa | -.01  .01  .02  1.52  -.72  -.76  -.1   .21   .20 |    9.8   -6.2    2.5
gfz | -.02  .01  .00  1.29  1.47  -.05  -.6   .20   .10 |  -85.7  -25.1     .7
jpl | -.02  .04 -.01  1.55   .20  -.10   .1   .12   .12 |  -86.4  -25.3    1.1
ngs |  .04 -.05 -.05  1.10  -.96   .61  1.8   .28   .25 |     .0     .0     .0
sio |  .02 -.04 -.03  2.09   .39   .26   .6   .18   .18 |     .0     .0     .0

Table 2.0733.5   GPS week: 0733   Day: 5   MJD: 49380.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .00  .01  1.19  -.01   .13  -.1   .12   .12 |   -1.9   -3.4   73.4
emr |  .00  .00  .01  2.25  1.01  -.14  -.2   .09   .09 | -252.8   47.0     .4
esa |  .01  .00  .01  1.45  -.11   .07   .4   .19   .15 |   14.5   17.9    2.6
gfz | -.01  .00  .01   .95  1.55  -.29  -.6   .27   .11 | -116.7    1.7     .9
jpl |  .00  .05 -.02   .73   .06   .16   .1   .13   .13 | -117.5    1.8     .7
ngs |  .03 -.06 -.04   .42  -.31   .74  2.0   .27   .28 |     .0     .0     .0
sio |  .00 -.06 -.02  1.84   .19   .07   .3   .19   .19 |     .0     .0     .0

Table 2.0733.6   GPS week: 0733   Day: 6   MJD: 49381.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .00  .02   .67  -.05   .04  -.2   .12   .12 |   -2.1    -.4   71.6
emr | -.01 -.01  .01  2.03   .34  -.02  -.2   .08   .08 | -193.7  -14.7     .3
esa | -.01  .01 -.01   .65  -.66  -.79   .0   .16   .16 |   24.3   -5.0    1.7
gfz | -.01  .00  .00   .59  1.74  -.30  -.4   .16   .12 | -113.6  -27.0     .5
jpl |  .01  .05  .00   .37   .02   .31   .4   .12   .12 | -114.7  -26.2     .4
ngs |  .01 -.07 -.06   .28 -1.07   .66  1.4   .35   .34 |     .0     .0     .0
sio |  .00 -.04 -.04  1.58  -.17   .04   .4   .18   .18 |     .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" flags eclipsing satellites.
         Units: cm.

Table 3.0733.0   GPS week: 0733   Day: 0   MJD: 49375.0

               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  14  19  12  22  11    5 |   11  16  21  23  15  20  18    6
   2E |  19  13  20  29  15  48  16    8 |   20  25  23  27  15  38  32   16
   3  |  26  35  35  30  13 875  26   51 |   10  20  15  23  17 463  27   17
   4  |  15   7  20  24   8  22  18    6 |   17  19  18  28  14  23  30   14
   5E |  10  11  26  24  15  29  24    7 |   17  28  36  28  14  31  34   19
   7  |   5   8  19  13  12  27  13    5 |   15  18  20  23  11  25  24   11
   9  |   7   7  13   8  12  17  12    4 |   11  19  12  18  12  25  20   11
  12  |   9   7   8  12   9  25  14    4 |    9  16  18  20  14  26  23   10
  13  |  13   7  22  18  12  33  26    6 |   11  15  13  30  13  16  40    9
  14  |   7   5  14  14  13  19   9    4 |   18  16  20  20  12  21  27   10
  15  |  15  10  19  16  11  28  14    5 |   15  19  20  17  12  25  18   12
  16  |  15   5  19  21   9  48  27    7 |   16  16  15  23  12  31  27   10
  17  |   6   5  11  14  13  33  15    4 |   16  18  21  23   9  28  22   11
  18  |   8   4  12   9  12  24  18    4 |    9  14  14  18  15  27  17    9
  19  |   7   5  10   9   7  18  17    4 |   13  16  15  21   9  25  24    8
  20E |  15  13  24  23  17  41  15    7 |   48  51  60  52  44  60  47   49
  21  |   7  11  23  17  10  31   8    5 |   14  17  12  22  14  22  22    8
  22E |  16   8  14   7  10  33  20    5 |   46  48  41  53  46  58  47   45
  23  |  12   7  21  15  11  28  20    6 |   13  19  21  20  20  31  30   16
  24  |  14   9  21  25  10  65  21    7 |   15  18  12  22   6  41  27    8
  25  |   8   7  18  19   9  26  21    5 |   11  15  14  21  12  20  28    8
  26  |   6   7  25  12   7  50  27    6 |   10  13  16  17  13  37  20    6
  27  |   6   6  15   7   9  29  14    4 |   15  16  16  17  11  29  21    8
  28  |   9   7  11   6   6  29  11    3 |   15  14  13  19  10  19  26   11
  29  |   8   5   9   7   8  25  18    4 |    9  15  13  16  12  21  20    5
  31  |   5   5  18  11   7  20  12    4 |   15  19  14  24  11  21  28   12
------|----------------------------------|----------------------------------
 RMS  |  11  10  19  17  11 172  18      |   18  21  22  25  17  95  28
 WRMS |  12  10  19  14  11  64  18      |

Table 3.0733.1   GPS week: 0733   Day: 1   MJD: 49376.0

               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   8  18  13   8  21  13    4 |   12  19  23  25  15  21  21    5
   2E |  18  11  22  20  12  21  12    6 |   19  23  20  27  15  26  27   13
   3  |  11   8  13  15   8  15   9    4 |   11  14  19  25  15 140  20    8
   4  |  14  12  30  22  11  45  21    8 |   20  19  26  25  16  27  33   12
   5E |  12   8  24  26  16  41  13    7 |   14  19  30  31  12  39  28   17
   7  |  11  10  20  13   7  21  13    5 |   17  21  19  26  14  27  28    9
   9  |   5   9  13  11  14  21  20    5 |   12  18  19  19  14  22  27   11
  12  |   6   6  11   8   9  26  16    4 |   10  16  23  19  12  31  25   10
  13  |  13  10  28  16  13  37  15    7 |   14  16  19  28  16  15  30    6
  14  |  11  11  11   9   9  14  18    5 |   14  17  16  19  11  14  20    9
  15  |  19   8  23  15   8  19  12    5 |   20  17  21  19  13  18  15   12
  16  |  13   8  20  21   9  24  11    5 |   18  18  20  24  12  26  23    8
  17  |   5   5  18  12  12  30  12    5 |   17  18  25  25  10  27  21   11
  18  |   7   6   9   7   9  21  16    4 |   11  13  17  18  14  19  19    7
  19  |  10   7   9  12   7   7  17    4 |   14  17  15  23  11  17  20    7
  20E |  14  14  20  29  18  38   9    7 |   42  41  50  48  34  42  45   38
  21  |  12   8  31  11   8  23  18    6 |   15  19  18  21  14  23  23    7
  22E |  29   5  13  16  11  32  24    7 |   41  38  33  39  34  41  34   33
  23  |  26  10  28  13  14  35  17    8 |   18  39  30  30  40  57  47   27
  24  |  18   8  22  26 ---  68  15   11 |   15  16  17  24 ---  36  23   10
  25  |   8  11  15  16   9  28  31    6 |   15  15  19  23  12  23  33    8
  26  |  11   6  12  17   9  17  30    6 |   13  15  19  19  13  18  23    7
  27  |  11  10  12  11   8   8  14    4 |   19  19  20  19  12  24  22    9
  28  |   8   7  15   7   9  26  15    4 |   13  15  13  19  13  19  29   10
  29  |   5   3  10   8   4  18   8    3 |   11  14  17  18  11  18  19    4
  31  |  10   7  25   6   9  22  13    5 |   12  17  17  21  11  13  24    9
------|----------------------------------|----------------------------------
 RMS  |  13   8  19  16  10  29  17      |   18  21  22  25  17  38  27
 WRMS |  13   9  15  14  11  26  17      |

Table 3.0733.2   GPS week: 0733   Day: 2   MJD: 49377.0

               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  28  12  13  20  16    5 |   12  25  22  25  17  14  21    5
   2E |  23  18  23  22  19  34  34    9 |   18  29  22  29  18  27  29   15
   3  |   7   7  11   8   8  27  14    4 |   12  20  22  22  17 128  30    8
   4  |  12   6  13  21  12  42  17    6 |   20  22  25  30  19  37  30   11
   5E |  16   9  25  21  19  19  13    7 |   16  23  27  28  16  32  26   15
   7  |   9   5  21   8  10  26  18    5 |   16  24  17  26  13  35  32    9
   9  |   8   9  11   9  13  17  14    4 |   14  23  17  19  12  22  21   10
  12  |   8   7  13  10   9  18  14    4 |   11  21  19  17  13  22  24    8
  13  |  14   5  14  10   8  23  26    5 |   13  23  17  28  17  19  37    8
  14  |  10  11  15   5  10  26  12    4 |   16  19  19  18  12  20  18    9
  15  |  13   9  13  24  12  20  10    6 |   19  21  23  22  15  17  17   12
  16  |  12   9   9  17  11  30  17    5 |   19  26  18  22  16  26  26    9
  17  |   7   5  10   8  11  34  12    4 |   16  25  24  23  14  23  24   11
  18  |   7   7   7   9  11  30  19    5 |   10  21  17  22  16  34  21   10
  19  |   7   6  10   8   8  10  22    4 |   15  24  19  22  14  22  20    7
  20E |  15  15  25  20  19  37  14    8 |   42  39  55  48  30  46  44   38
  21  |  13   4  16  12   7  23  18    5 |   15  21  20  21  12  19  21    8
  22E |  21   9  11  24  14  38  15    7 |   47  45  41  42  34  40  49   35
  23  |  19   9  25  13  10  36  28    7 |   19  31  28  20  23  47  24   18
  25  |   5   9  13  10  13  20  27    5 |   15  23  20  19  17  20  33    8
  26  |  10  11  13  16  12  21  27    6 |   15  22  17  17  18  23  21    7
  27  |   6   4   9   9   8  19 ---    3 |   13  23  20  19  17  28 ---    7
  28  |   8   6  11  11  11  24  15    4 |   15  22  14  17  12  18  26   10
  29  |   3   5  10   4  11  19  10    3 |   12  22  19  18  16  18  19    6
  31  |   8   7  22  11  13  17  10    5 |   15  24  15  24  16  15  27   10
------|----------------------------------|----------------------------------
 RMS  |  12   8  16  14  12  26  18      |   19  25  23  25  17  37  27
 WRMS |  12   9  15  12  12  26  19      |

Table 3.0733.3   GPS week: 0733   Day: 3   MJD: 49378.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   9  10  17   8  14  13  21    5 |   14  22  15  22  17  11  24    7
   2E |  18  16  20  24  20  18  21    8 |   20  30  30  27  20  24  31   19
   3  |   9  11  16  11  10  18  17    5 |   13  22  16  24  21  91  27   10
   4  |  13   7  22  13   9  50  17    7 |   23  21  24  22  14  39  25   11
   5E |  15   8  15  26  15  18   9    6 |   44  43  38  50  36  41  41   37
   7  |   9   7  15  10   9  32  21    5 |   18  21  26  23  16  37  36   11
   9  |   7  13  17   9  12  17  25    5 |   15  26  16  17  13  22  32   11
  12  |  10  14  12   8   8  19  24    5 |   13  24  18  18  14  20  28    9
  13  |   9   7  16   5  10  49  23    6 |   16  21  18  23  12  24  28    7
  14  |   6   6  19   5  10  12  15    4 |   16  19  24  16  16  19  16   10
  15  |  15   6  20   9  11  25  18    5 |   19  20  24  18  16  16  22   12
  16  |   9  11   6  11  11  42  13    5 |   22  23  22  20  15  24  22   10
  17  |   5   7   7  11  15  29  13    4 |   17  21  19  20  15  18  19   10
  18  |   5   8   8   5   8  26  17    4 |   12  21  17  15  17  30  18    7
  19  |   4   5   8   8   9  22  12    3 |   14  20  17  20  12  22  19    7
  20E |  14  14  25  30  19  36  15    8 |   41  45  51  58  38  54  42   41
  21  |  12   5  19   8   9  25  24    5 |   16  20  22  22  16  16  23    9
  22E |  33   7  21  25  19  34  21    9 |   41  40  38  54  33  40  37   36
  23  |  12   6  15   7   8  38  23    6 |   25  40  50  42  41  49  41   36
  25  |  11  14   8  11  14  23  38    7 |   17  21  19  21  16  20  39    9
  26  |  11  11  20  15  14  20  19    6 |   14  23  17  18  22  18  22    8
  27  |   9   5   9   8  12  32  17    5 |   18  22  19  20  13  41  22   10
  28  |   7  10  12  10  11  36  13    5 |   14  22  15  17  16  34  24   10
  29  |   5   5  14   7  11  37  11    4 |   13  18  17  16  22  35  16    6
  31  |   8  14  22   8  13  21  15    5 |   15  26  16  24  19  19  28   11
------|----------------------------------|----------------------------------
 RMS  |  12   9  16  13  12  29  19      |   21  26  25  27  21  34  28
 WRMS |  11  10  15  10  13  29  19      |

Table 3.0733.4   GPS week: 0733   Day: 4   MJD: 49379.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   7  10  32   5  12  21  11    5 |   12  16  18  19  11  17  16    6
   2E |  10  11  21  21  12  17  16    6 |   17  24  29  21  11  24  26   11
   3  |   8   6  25   6   7  17  11    4 |   13  18  18  14  14  66  21    7
   4  |  11   6  15  13  10  29  16    5 |   21  18  22  19  18  21  25   11
   5E |  14  12  32  38  18  24  18    9 |   34  32  34  43  30  39  35   30
   7  |   9   6  27   9   8  20  10    4 |   17  18  24  22  11  24  21   10
   9  |  14  11  20  12  11  19  12    5 |   18  21  22  20   9  14  16    9
  12  |   9   9  22  11   8  22  12    5 |   12  19  20  20  13  20  14    7
  13  |  14   8  10   5   9  40  12    5 |   15  19  15  20  16  25  23    8
  14  |  10   5  23   7  10  18  17    5 |   14  15  22  13  10  20  25    9
  15  |  15  10  14  12  10  19  14    5 |   16  17  23  17  10  17  20   12
  16  |  12  10  23  14  10  51  36    8 |   21  21  25  19  17  34  35   11
  17  |   4   8  10   8  13  31  12    4 |   17  20  17  18  12  29  23    9
  18  |   9   6  19   8  10  26  17    5 |   11  15  17  13  16  21  19    7
  19  |   5   6  10   8   8  26  14    4 |   14  18  18  20  15  19  17    7
  20E |  11  10  19  21  18  24  22    7 |   35  40  40  42  35  51  42   36
  21  |  11   4  27  10   9  34  15    5 |   16  15  23  14  10  30  18    8
  22E |  30  12  31  73  16  33  31   14 |   40  42  40  76  34  37  41   35
  23  |  12   7  10  13   9  26  15    5 |   21  24  20  19  22  19  26   18
  25  |   9  18  15   6  13  48  25    7 |   14  18  16  20  13  40  27    9
  26  |   9  10  24  13  11  22  18    5 |   13  17  19  16  15  20  26    7
  27  |  10   5  10   5  11  27  11    4 |   14  19  17  17  16  28  21    7
  28  |   9   8  16   6  12  28  18    5 |   14  15  16  18  13  31  27    9
  29  |   4   5   9   5  10  19   7    3 |   11  15  12  14  14  13  15    5
  31  |  12   8  26   6  11  22  21    5 |   14  21  17  21  13  17  28    9
------|----------------------------------|----------------------------------
 RMS  |  12   9  21  19  11  28  17      |   19  21  22  25  17  29  25
 WRMS |  11   9  20  10  11  25  18      |

Table 3.0733.5   GPS week: 0733   Day: 5   MJD: 49380.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   7   7  12  12   8  25  14    4 |   12  17  17  21  11  20  21    7
   2E |  21   7  12  24  13  33  10    6 |   13  22  18  22  12  26  22   10
   3  |  12   5  13  10   8  23  15    4 |   10  19  15  17  11  87  15    7
   4  |  16   8  14  12  11  43  21    6 |   18  21  20  18  13  43  29   11
   5E |  12  10  13  22  16  22   7    6 |   33  34  39  34  32  36  30   29
   7  |   6   5   7   8   9  13   7    3 |   13  18  14  18   9  13  18   10
   9  |   9  12  48  10  12  19  29    8 |   16  21  23  17   9  13  21   10
  12  |   8   9  31   6  10  29  14    6 |   11  22  15  16  10  27  16    8
  13  |  12   3  11   7  11  26  21    5 |   11  18  13  17  11  15  26    6
  14  |  12  10  16   7   9  20  27    5 |   13  16  23  13  11  17  19   10
  15  |  17   7  16   9  11  18  22    5 |   18  18  16  16   7  16  23   11
  16  |  15   9  30   6   9  42  30    7 |   19  22  21  19  10  35  26   11
  17  |   4   8  15   6  11  20  13    4 |   13  23  17  17  10  15  19    9
  18  |   5   6  14   7   8  23  16    4 |    8  14  13  14   9  21  15    6
  19  |   9   5   7   6   7  27  12    4 |   12  20  15  15   6  16  16    6
  20E |  13  22  22 123  32  32  23   19 |   35  37  40 138  30  38  38   37
  21  |  12   5  16  13  11  34  13    5 |   15  17  18  15   9  20  18    7
  22E |  11   6  13  25  13  27  11    6 |   37  41  40  55  32  47  42   35
  23  |   9   7  22   8  10  35  26    6 |   36  40  48  39  41  44  41   38
  25  |   7  14  26  17  11  21  35    7 |   12  19  20  22  11  15  29    7
  26  |   9   7   8  12  17  28  16    5 |   11  18  21  14  15  15  19    6
  27  |  12   7   7   8  13  23  13    4 |   12  21  16  14  10  24  18    8
  28  |  12   8  10   7  13  27  10    5 |   12  17  14  15   8  28  14    8
  29  |   6   5  13   9  11  26  11    4 |    9  15  14  17  11  20  16    5
  31  |  12   8  20   7  13  25  13    5 |   13  21  18  18   6  20  20    9
------|----------------------------------|----------------------------------
 RMS  |  11   9  19  27  12  27  18      |   18  23  23  35  16  31  24
 WRMS |  11   9  15  10  13  27  19      |

Table 3.0733.6   GPS week: 0733   Day: 6   MJD: 49381.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |  11   7  16  10  12  38  19    5 |    8  13  13  15  16  31  20    7
   2E |  23   8  13  25  10  76  13    8 |   18  25  17  18  16  33  23   14
   3  |  11   7  18   9   7  18  13    4 |    9  17  10  14   9  85  16    8
   4  |  10   6   7  20  11  32  24    5 |   15  16  13  20  10  31  22   10
   5E |  13   9  17  21  19  39   9    6 |   34  37  37  34  36  41  34   34
   7  |   8   7   8   8  10  24  10    4 |   11  15  15  19  12  19  16   10
   9  |   7   6  16   8  10  31  15    4 |   14  15  18  14   8  12  13    9
  12  |   6   5   9  16   8  19   8    3 |   10  14  16  13  10  13  16    9
  13  |   9   5  15   6   7  17  15    3 |    9  14   9  15   7  15  20    6
  14  |   7   7  13   6  14  25  25    5 |   13  18  20  16  11  26  22   12
  15  |  14  11  18  17  11  32  11    6 |   16  16  18  17   8  28  14   13
  16  |  13   8  23   6  11  36  20    6 |   16  19  16  20   9  33  21   12
  17  |   4   5  18  13  10  21  14    4 |   13  20  17  19   9  19  19   10
  18  |   4   5   5   7   9  48  26    5 |    8  15  12  16  11  42  17    7
  19  |   4   5  14   7   6  24  13    3 |   10  19  14  17   8  16  14    8
  20E |   8   9  25  46  25  44  17   10 |   43  47  46  82  40  47  46   45
  21  |   7   4  14  10  11  32  19    4 |   13  16  15  17  10  19  21    9
  22E |  29  14  24  20  13  68  20    9 |   39  41  28  35  30  43  35   32
  23  |  15   6  12  10  12  25  26    5 |   27  43  34  36  37  40  46   33
  25  |   9   9   9  11   8  37  28    5 |   10  16  12  18  10  27  21    8
  26  |   8   5  24  18  12  27  21    6 |    8  14  12  18  12  14  19    7
  27  |   7  10  14   6   7  26  13    4 |   12  23  13  15   9  24  14    9
  28  |  14  10   9   9  11  13  16    4 |   11  14  15  15   8  16  13   11
  29  |   5  12  18  11   8  23  13    4 |   11  14  16  18  10  21  17    7
  31  |  12   8  21   8  13  22  13    5 |   10  15  17  18  10  20  13   10
------|----------------------------------|----------------------------------
 RMS  |  12   8  16  15  11  35  17      |   18  22  20  25  17  32  23
 WRMS |  11   8  15  11  12  34  18      |