Subject: [IGSREPORT-0814] IGS Rapid Orbit Comb(736)
From: Analysis Centres Coordinator / Geodetic Survey of Canada
Date: Mon, 28 Feb 1994 13:25:50 PST

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IGS Electronic Report    Mon Feb 28 13:25:50 PST 1994      Message Number 0814
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Author: Analysis Centres Coordinator / Geodetic Survey of Canada
Subject: IGS Rapid Orbit Comb(736)

Rapid Service IGS Orbit Combination - Week 0736   (Feb 13, 1994 - Feb 19, 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. The position weights are computed from the absolute deviations
to the unweighted average orbit and weighted with the normalized SP3 accuracy
codes after the estimation of a 7-parameter Helmert transformation. The clock
weights are computed from the absolute deviations to the unweighted average
clock corrections after estimation of offsets and drifts. 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. The ERP used in this evaluation are those submitted by the
respective centres supplemented with Bulletin A UT1-UTC values when they are
not supplied.
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:

 IGS07360-6.SP3  IGS GPS ephemeris files for days 0-6, week 0736 in SP3 format.
 IGS07367.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS07367.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. Note the changes in the centre orbit weight computation (starting this week)
   and in the long-arc evaluation (started with week 0734) described in
   COMBINATION STRATEGY.

4. PRN03 experienced sparse tracking on certain days of this week, particularly
   days 0 and 3 (Feb 13 and 16).

5. NGS and EMR solution for PRN03 on day 0 (Feb 13) and NGS and SIO solutions
   for PRN03 on day 3 (Feb 16) were excluded from combination due to large RMS
   (~ 5 m) that drove the combination away from the good solutions of COD, ESA,
   GFZ and JPL. Unlike clock combination, satellite orbit solutions removed
   from combination are not kept in the RMS computations of the weighted
   average process. The excluded solutions were however left in the long-arc
   evaluation.

6. The large clock correction RMS for COD on day 0, 3, 5 and 6 (Feb 13, 16, 18
   and 19) are due to a delay in acknowledging clock resets of several micro-
   seconds on PRN 03 by broadcast message. Since the COD clock solution is not
   included in the combination, the IGS clocks are not affected.

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 1.0736.a).
It also displays the computed satellite position sigmas for the combined orbits
(table 1.0736.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 2.0736.0-6). 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 3.0736.0-6). 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 0736 summary.                       (Feb 13, 1994 - Feb 19, 1994)

Table 1.0736.a   GPS week: 0736   MJD: 49396.0-49402.0

         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  .02  .02  2.31  -.09   .27   .2   .14   .13 |    8.7  -49.2  599.9
    |  .01  .01  .01   .21   .20   .21   .2             |   48.2   83.2
emr |  .01  .00 -.01  2.40  -.04   .14  -.1   .16   .16 |  247.4   34.2   10.6
    |  .01  .01  .01   .40   .28   .26   .1             |  231.2  119.7
esa |  .01  .00  .00  2.34  -.50  -.67   .1   .23   .22 |  -35.7  -23.5   13.1
    |  .01  .01  .01   .38   .54   .49   .1             |   16.4   73.3
gfz | -.03  .01  .01  1.75  1.16  -.42  -.4   .14   .12 |  -75.5  -42.2    8.1
    |  .01  .01  .01   .16   .23   .17   .2             |  463.4   68.6
jpl |  .01 -.03  .02  2.53   .06   .42   .0   .12   .12 |  -79.9  -33.8   14.4
    |  .01  .00  .01   .26   .30   .19   .1             |  464.3   70.4
ngs |  .03 -.02  .00  2.53  -.08   .55   .8   .45   .37 |     .0     .0     .0
    |  .02  .02  .03   .37   .45   .73   .7             |     .0     .0
sio |  .03 -.03 -.08  3.02   .98  -.09   .8   .27   .27 |     .0     .0     .0
    |  .02  .01  .02   .31   .29   .32   .3             |     .0     .0

Table 1.0736.b   GPS week : 0736   MJD: 49396.0-49402.0

         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  |   6   5   7   5   5   6   6 |
   2E |   5   5   7   6   7   7   5 |
   3  |  21   4   6  26  23   5   9 | Sparse tracking on days 0 and 3.
   4  |   6   6   7   6   6   8   8 |
   5E |   5   6   7   6   4   6   7 |
   7  |   7   4   5   5   5   5   6 |
   9  |   5   5   7   5   5   5   7 |
  12  |   4   5   6   6   5   7   6 |
  13  |   5   7   7   6   5   6  12 |
  14E |   5   5   8   7   5   8  10 |
  15  |   5   6   6   6   7   6   6 |
  16E |   8   9   9   8   9   9  21 |
  17  |   4   4   6   5   5   5   6 |
  18  |   4   5   6   7   5   4   5 |
  19  |   4   4   4   4   4   4   5 |
  20E |   7   7   8   6   5   6   7 |
  21E |   6   6   6  11   9   9   9 |
  22E |   8   6  15   6  10   9   8 |
  23E |   7  10  10  10  12  12  11 |
  24  |   6   5  11   6   7   8   9 |
  25  |   8   5  11  10   7   7   6 |
  26  |   5   5   5   5   5   5   8 |
  27  |   4   4   5   5   5   5   4 |
  28  |   6   6   7   7   8   6   5 |
  29  |   4   5   6   6   5   6   4 |
  31  |   7   6   6   5   5   7   6 |

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 2.0736.0   GPS week: 0736   Day: 0   MJD: 49396.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .03  .02  1.95  -.26   .30   .1   .13   .13 |  100.2 -184.2  667.6
emr |  .01 -.01  .00  2.03  -.28   .35  -.1   .11   .11 |  256.1   -5.1    9.9
esa |  .01  .00 -.01  1.92  -.68  -.71   .2   .19   .16 |  -35.5  -11.3    6.6
gfz | -.03  .02  .00  1.72  1.02  -.36  -.4   .10   .09 | -344.8  -24.9    6.7
jpl |  .01 -.03  .02  2.56  -.12   .25  -.1   .11   .12 | -348.2  -23.4   14.9
ngs |  .02 -.04  .00  2.45  -.23   .07  1.3   .42   .38 |     .0     .0     .0
sio |  .02 -.04 -.08  2.92   .60   .48   .6   .30   .30 |     .0     .0     .0

Table 2.0736.1   GPS week: 0736   Day: 1   MJD: 49397.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .02  .01  2.43  -.17   .06  -.2   .12   .11 |    3.7    3.3   71.9
emr |  .02  .00 -.04  3.15   .13   .59  -.1   .15   .15 |  243.7  -17.0   10.8
esa |  .00  .00  .01  2.07 -1.31 -1.50   .1   .20   .20 |  -38.8    3.1    7.4
gfz | -.04  .03  .01  1.81  1.00  -.27  -.4   .14   .12 | -370.3  -16.8    8.8
jpl |  .00 -.02  .03  2.74  -.13   .23   .1   .10   .10 | -371.8  -11.5   13.6
ngs |  .04 -.03  .06  2.52   .06  1.59  1.0   .34   .34 |     .0     .0     .0
sio |  .03 -.02 -.05  3.15  1.06  -.09   .7   .19   .19 |     .0     .0     .0

Table 2.0736.2   GPS week: 0736   Day: 2   MJD: 49398.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .02  .01  2.43  -.14   .62   .3   .13   .13 |    2.7    5.7   74.1
emr |  .01 -.01  .00  2.28  -.31  -.03  -.3   .13   .13 |  265.2   36.4    9.0
esa |  .01 -.01 -.01  2.95  -.73  -.55   .0   .20   .19 |  -38.3   -5.3    4.9
gfz | -.05  .02  .01  2.03  1.10  -.53  -.1   .15   .13 | -375.5  -25.3    9.6
jpl |  .02 -.04  .01  2.87   .15   .71   .1   .14   .14 | -383.1  -17.9   13.2
ngs |  .02 -.04 -.01  3.16  -.69  -.38   .7   .52   .40 |     .0     .0     .0
sio | -.01 -.05 -.10  3.49  1.29  -.44  1.0   .38   .39 |     .0     .0     .0

Table 2.0736.3   GPS week: 0736   Day: 3   MJD: 49399.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .02  .01  2.18   .19   .37   .2   .16   .14 |  -41.8 -123.1 1252.0
emr |  .01  .01 -.01  2.23   .22  -.03  -.2   .23   .23 |  644.1 -130.0   10.6
esa |  .02 -.01  .00  2.57   .04  -.17   .1   .26   .31 |  -16.1 -168.1   20.9
gfz | -.02  .00  .02  1.64  1.51  -.71  -.3   .17   .13 | -405.6 -179.2   10.5
jpl |  .02 -.03  .02  2.51   .63   .53  -.1   .13   .13 | -412.6 -172.4   18.3
ngs |  .00  .01  .00  2.69   .09   .15  1.6   .38   .35 |     .0     .0     .0
sio |  .03 -.02 -.09  2.75  1.11  -.33  1.1   .23   .23 |     .0     .0     .0

Table 2.0736.4   GPS week: 0736   Day: 4   MJD: 49400.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .02  .03  2.38   .12   .09   .2   .16   .15 |    2.6    4.8   77.2
emr |  .02  .01 -.02  2.55   .28   .02  -.1   .17   .15 |  -66.0  226.2   10.0
esa |  .01  .00  .01  2.43  -.44  -.21   .2   .23   .19 |  -22.2   -1.2   20.3
gfz | -.03  .00  .02  1.72  1.39  -.30  -.5   .11   .10 |  554.5  -20.3    6.3
jpl | -.01 -.03  .01  2.18   .01   .32   .3   .15   .15 |  551.9   -6.7   14.9
ngs |  .06  .01 -.04  2.08   .62   .86  -.4   .54   .37 |     .0     .0     .0
sio |  .05 -.02 -.10  2.65  1.15   .02   .5   .22   .23 |     .0     .0     .0

Table 2.0736.5   GPS week: 0736   Day: 5   MJD: 49401.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod | -.01  .03  .01  2.50  -.30   .19   .4   .14   .13 |  -15.3   -1.9  360.2
emr |  .00  .01  .00  2.16  -.26  -.03   .0   .13   .14 |  141.2   94.9   13.0
esa | -.02  .01  .00  2.12   .15  -.89   .1   .27   .23 |  -63.3   41.9    8.1
gfz | -.03  .01  .01  1.57   .95  -.32  -.6   .16   .14 |  488.7   13.1    5.4
jpl |  .01 -.03  .02  2.31  -.17   .49  -.1   .10   .10 |  484.6   29.3   10.2
ngs |  .02 -.04 -.01  2.31  -.34  1.01   .8   .43   .39 |     .0     .0     .0
sio |  .04 -.03 -.09  3.18   .64  -.17   .5   .22   .23 |     .0     .0     .0

Table 2.0736.6   GPS week: 0736   Day: 6   MJD: 49402.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .00  .00  2.34 -1.13   .15   .5   .15   .14 |  -12.4  -38.5  385.3
emr |  .01  .00 -.02  1.99  -.85  -.08  -.1   .15   .15 |  293.8   36.2    7.9
esa |  .01  .00  .02  1.85 -1.38 -1.26   .3   .25   .21 |   -6.0 -100.0   12.5
gfz | -.03  .01  .01  1.74   .60  -.42  -.3   .20   .11 |  523.3 -107.2    5.5
jpl |  .01 -.01  .02  1.83  -.60   .71   .1   .14   .14 |  528.3 -108.1   16.1
ngs |  .07  .03  .02  2.16  -.94  1.71  -.4   .46   .44 |     .0     .0     .0
sio |  .07 -.04 -.05  2.87  -.40   .08   .8   .39   .40 |     .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 3.0736.0   GPS week: 0736   Day: 0   MJD: 49396.0

               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  11  18   9  12  52  20    6 |    8  12  19  11  18  36  24    9
   2E |  11  16  14  11  13  24  11    5 |   14  26  15  21  26  34  33   19
   3  |  22 ---  33 ---   8 ---  92   21 |    7 267  22 ---  13 999  56   11
   4  |  14  13  19  11  10  39  26    6 |   11  19  10  22  14  33  19   12
   5E |  10   6  18   8   9  42  14    5 |   16  16  22  21  26  29  30   18
   7  |  17  13  28  11   5  38  23    7 |   10  20   9  20  17  33  26   13
   9  |   9  10  15   7   8  19  39    5 |    7  16  13   9  12  17  44    9
  12  |   6   7  20   6   7  21  21    4 |    6   9  13  12  10  20  33    8
  13  |  12  10  12   7   8  29  24    5 |    7   8   8  10   9  24  33    6
  14E |   9  12  17  10   9  32  26    5 |    9  16  14  17  17  31  31   12
  15  |  12  11   6  12   8  27  31    5 |   12  13  15  14  15  25  30   11
  16E |  15  13  26  11  11  70  30    8 |   15  15  22  18  27  53  32   15
  17  |   5  11  16   8   5  38  13    4 |   11  13  13  15  14  29  22   11
  18  |   8   7  12   4  15  30  14    4 |   11  14  15  11  20  27  22   10
  19  |   7   9  14   6   8  35  11    4 |    6  12  10  11  15  25  19    7
  20E |   7  13  32  14  14  45  27    7 |   25  25  43  33  32  29  30   27
  21E |  11  11  16  19  10  37  19    6 |   21  28  22  36  24  40  44   24
  22E |  15  11  10  14  15  77  30    8 |    9  18  16  19  21  61  26   13
  23E |  13   9  35  15   9  49  16    7 |   45  40  37  40  42  39  49   39
  24  |  10  13  11   9  15  45  24    6 |   14  13  14  14  14  31  29   10
  25  |   9   7  22   8  21  75  22    8 |    6  10  20  13  11  52  16    7
  26  |  19  13  10   7  11  33  23    5 |    8  13  12  17  18  36  23    8
  27  |   6  11  17   5   5  39  11    4 |    6  15   8  11  14  30  20    7
  28  |  14   9  16   7  10  32  36    6 |   12  10  18  12  17  23  27   12
  29  |   7  10  12  10  12  31  11    4 |    9   8  15  13  16  26  20    8
  31  |  27   8  15   5   9  22  41    7 |   10  11  16  17  19  29  21   13
------|----------------------------------|----------------------------------
 RMS  |  12  11  19  10  11  41  29      |   14  55  18  19  19 198  30
 WRMS |  12  11  15   9  11  37  30      |

Table 3.0736.1   GPS week: 0736   Day: 1   MJD: 49397.0

               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  13  20   5   9  34  17    5 |    8  11  18   9  12  34  14    5
   2E |  10  12  16   8   6  42  11    5 |   11  20  18  14  22  39  19   16
   3  |   7  12  10  12   6  21  19    4 |    7 116  23  12   9 999  48    8
   4  |  10  15  12  12   9  47  21    6 |   11  20   9  17  11  43  17   10
   5E |  10  15  32   7  12  39  13    6 |   17  15  22  20  25  28  19   16
   7  |  13  12  12   7   6  23  17    4 |   12  19  17  18  17  23  26   14
   9  |   6  19  16   9   9  26  17    5 |    8  20  10   8   8  22  23    6
  12  |   6  16  19   8   8  32  12    5 |    5  17  13   8   9  23  18    5
  13  |  12  23  17  13   5  36  25    7 |    6  20  12  10  11  35  29   10
  14E |   8   6  20  10   8  42  18    5 |   10  15  24  20  18  29  20   14
  15  |  16  13   9  14   8  36  26    6 |   15  11  14  15  15  30  22   12
  16E |  21  16  28  25  18  35  27    9 |   26  19  24  32  31  43  31   19
  17  |   8  13  16  12   4  25   7    4 |   12  17  16  15  13  27  16   10
  18  |  10   9  22   8   7  31  12    5 |    9   9  25  10  17  36  14    9
  19  |   7   9   8   8   7  33  13    4 |    8   9  16   8  13  28  15    7
  20E |  11  11  15  28  16  28  21    7 |   24  29  32  34  40  25  22   27
  21E |  12  14  17  17   8  25  19    6 |   19  27  27  30  23  35  30   21
  22E |   9  11  15  10   9  62  22    6 |    9  20  18  17  18  29  25   13
  23E |  20  37  37  22   9  31  20   10 |   32  57  38  38  39  22  28   34
  24  |  11  12  22  12  11  21  19    5 |   13  15  19  16  13  28  21    9
  25  |  10   6  17   9  13  24  21    5 |    7  10  14  10  14  49  24    7
  26  |  13  10   9  10  10  34  19    5 |    9  12  10  16  17  33  18    8
  27  |   6   9  21  11   5  32  11    4 |    6  10  20   7  12  34  14    7
  28  |  12  10  21  19  11  35  21    6 |   14  14  23  16  16  37  14   11
  29  |  10  12  25  12   8  31  12    5 |    8  10  31  12  14  32  11    7
  31  |  11  12  25   9  11  35  25    6 |   12  17  22  12  17  30  12   13
------|----------------------------------|----------------------------------
 RMS  |  11  14  20  13   9  34  18      |   13  30  21  18  19 198  22
 WRMS |  11  15  20  12   9  33  19      |

Table 3.0736.2   GPS week: 0736   Day: 2   MJD: 49398.0

               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  13  33   8  11  36  31    7 |    7  14  28  12  18  24  25   11
   2E |  18  10  37  12  12  30  17    7 |   14  25  22  21  28  31  29   18
   3  |   7  10  19  10  13  27  36    6 |    9 105  23  14  12 640  99   11
   4  |  11  13  11  14   8  48  48    7 |   11  16  15  24  13  35  62   12
   5E |  13  16  21  20  17  27  25    7 |   13  19  23  25  22  38  28   15
   7  |  12  10  23  10   9  27  15    5 |   12  13  28  22  21  27  27   13
   9  |  10  12  15  13  10  63  12    7 |    7  12  18  13  10  48  17    8
  12  |  10  12  18  11  13  48  14    6 |    6  11  26  11  10  25  18    8
  13  |  11  13  11   9  17  52  28    7 |    8  17  12  12  18  50  33    8
  14E |  11  13  18  25  19  27  35    8 |   10  17  16  34  20  25  36   14
  15  |  16  13  15  20  11  32  14    6 |   16  18  13  17  16  29  28   14
  16E |  19  22  22   9  18  76  20    9 |   30  17  21  23  35  58  31   17
  17  |   8  10  20   7  16  40  23    6 |   12  17  19  13  14  40  27   10
  18  |   7   9  19  16  10  34  34    6 |   11  12  22  14  17  42  37    9
  19  |   9   5  10   8  10  26  20    4 |    7  14  10  13  16  22  14    9
  20E |  19  16  19  16  15  25  47    8 |   30  23  42  30  34  30  43   27
  21E |  14  13  13  17  11  48  13    6 |   25  30  29  30  24  52  36   25
  22E |   8  18   6  14  17 157  59   15 |   11  15  17  23  25 111  45   15
  23E |  22  16  28  28  23  51  21   10 |   18  38  40  32  39  49  33   30
  24  |  15  13  12  15  10  37 102   11 |   15  13  21  24  12  41 100   10
  25  |  16  12  19   9  10  73  90   11 |    7  14  24  15  10  52  55    9
  26  |  13  10   9  11  16  25  20    5 |    8  15  12  15  18  25  19   10
  27  |  15   7  17  10   8  37  20    5 |    7  15  12  10  16  26  15    8
  28  |  14   6  23  15  16  51  18    7 |   17  12  23  13  18  54  15   12
  29  |  10   7  11  13   7  39  35    6 |   10   9  14  16  14  34  32    7
  31  |   9  10  19  14  14  50  11    6 |   13  12  22  18  18  48  20   14
------|----------------------------------|----------------------------------
 RMS  |  13  12  19  14  13  52  38      |   14  27  22  20  20 132  41
 WRMS |  12  12  18  12  14  39  38      |

Table 3.0736.3   GPS week: 0736   Day: 3   MJD: 49399.0

               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   8  27  10   9  34  19    5 |    9   9  37  12  17  22  21    8
   2E |  22  18  23   8   9  22  19    6 |   15  25  29  20  30  23  28   20
   3  |  42 100  59  18  22 --- ---   26 |   11 129  30  32  13 999 510   29
   4  |  10   9  20  12   6  29  34    6 |   11  11  14  22  14  33  28   10
   5E |  10  14  16  12  14  42  14    6 |   17  15  21  24  31  32  26   18
   7  |  12   9  31   6   9  26  17    5 |   11  14  21  20  22  24  27   14
   9  |   8   9  32   6   9  28  17    5 |    8  15  32  13  11  23  27    9
  12  |  12   8  34   6  13  45  12    6 |    8  10  32  13  12  15  22    8
  13  |  17   9  21   6   9  36  25    6 |   11   9  14  11  16  34  32    8
  14E |  13   9  23  22  11  38  15    7 |   10  18  21  28  18  37  28   16
  15  |  15   9  11  14  12  26  25    6 |   14  15  17  17  20  23  27   13
  16E |  11  16  21  25   9  47  36    8 |   28  14  31  37  27  38  31   21
  17  |   6   9  25  11   8  29  13    5 |   11  14  30  17  15  31  24   11
  18  |  12  11  16  12  18  30  31    7 |   13  12  20  11  22  24  28    9
  19  |  10   6  15   7   7  26  21    4 |    9  10  16  10  13  27  28    9
  20E |  13  12  35  14  12  25  15    6 |   28  29  45  30  31  40  39   28
  21E |  13  23  13  45  12  48  20   11 |   20  28  30  29  25  44  42   21
  22E |   7  15  24  17  11  30  25    6 |   14  15  27  19  23  52  20   14
  23E |  29  10  40  26  21  45  27   10 |   57  51  70  56  64  57  60   55
  24  |  14   8  11  16   8  20  31    6 |   15  13  17  22  12  18  27    9
  25  |  14  12  20  14  19  95  37   10 |    9  19  25  17  19  79  18   10
  26  |  12   9  20  11  11  30  18    5 |   10  11  18  16  16  18  26    8
  27  |  11   7  15  10   7  32  15    5 |    9  11  23  11  14  23  21    9
  28  |   8  14  23  18  10  45  21    7 |   15  16  25  13  21  48  21   14
  29  |  10  10  28  18  12  25  21    6 |    8  11  32  19  14  24  24    8
  31  |   8  12  17   9  10  24  19    5 |   13  14  24  18  17  25  22   14
------|----------------------------------|----------------------------------
 RMS  |  15  22  26  16  12  38  23      |   17  31  29  22  23 199 104
 WRMS |  13  22  30  12  12  35  23      |

Table 3.0736.4   GPS week: 0736   Day: 4   MJD: 49400.0

               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  12  18   9  14  32  20    5 |    6  13  19  13  19  30  21   10
   2E |  25  21  23   9   7  19  16    7 |   15  23  30  18  24  25  22   16
   3  | ---  50  28  15  17 206  23   23 |  ---  37  24  16  18 234 124   12
   4  |  10   9  16  14  13  34  27    6 |   11  15  13  23  15  35  17   12
   5E |   9  12  18   9   9  26   8    4 |   14  20  22  19  25  23  19   16
   7  |  16  10  17   6   8  32  11    5 |   15  20  14  18  18  30  21   15
   9  |  10   8  28   5   8  29  15    5 |    9  12  29  11  12  26  20    7
  12  |   7   7  25   5   8  20  24    5 |    8  10  25  11  13  33  23    8
  13  |  16   9  14   4   9  28  20    5 |   12  14  15  13  15  26  31    9
  14E |  13   5  20  11   9  23  16    5 |   14  13  25  25  17  33  22   15
  15  |  15   9  27  15  15  47  18    7 |   13  12  20  17  16  33  22   13
  16E |  27  10  19  23  31  39  21    9 |   35  14  23  37  32  46  26   19
  17  |  12   6  20  10   7  32  20    5 |   13  14  23  23  13  35  32   14
  18  |   8  10  19   9   8  31  23    5 |   12  11  16  11  16  26  21    8
  19  |   8   6   8   5  14  20  13    4 |    8  11  15  11  17  19  14    9
  20E |  11  14  10   6  12  43  15    5 |   18  24  23  20  21  26  29   18
  21E |   9  15  37  16  19  54  32    9 |   16  26  28  31  27  41  40   21
  22E |  13  27  25  12  20  77  35   10 |    9  15  20  16  25  58  22   12
  23E |  43  32  47  12  21  46  28   12 |   42  56  58  58  49  61  62   49
  24  |  17  10  11  15  11  50  21    7 |   14  14  12  22  16  43  23    9
  25  |  10  13  18   8  18  43  28    7 |   10  18  19  12  15  29  14    9
  26  |  10   9  13   9  14  34  19    5 |   12  11  15  18  20  27  22   11
  27  |   8   8  28   7   8  29   9    5 |    8  13  17  11  15  32  17   11
  28  |  17  15  24  12  15  30  36    8 |   16  14  28  16  20  24  21   13
  29  |   7   9  16  12   7  26  21    5 |   10  11  13  13  13  17  24    8
  31  |   9  11  13   8  16  20  25    5 |   13  12  21  13  19  18  20   12
------|----------------------------------|----------------------------------
 RMS  |  16  16  22  11  14  53  22      |   16  19  23  21  21  56  35
 WRMS |  14  14  19  10  14  37  22      |

Table 3.0736.5   GPS week: 0736   Day: 5   MJD: 49401.0

               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  17  20   8  11  33  19    6 |   10  14  24   9  20  23  15    9
   2E |  10  14  45  13   8  27  12    7 |   15  22  28  17  21  35  18   16
   3  |  11   7  13  15   7  34  14    5 |   12  48  12  19   9 316  78   11
   4  |  14  10  11  18   9  69  25    8 |   12  12  16  20  12  63  18   10
   5E |  11   6  30  10  11  51  11    6 |   10  19  24  22  21  64  19   18
   7  |  12  13  25  14   5  30  12    5 |   13  15  14  23  18  36  21   14
   9  |   7   9   9  10  10  35  18    5 |    8  11   9  15  11  27  18    7
  12  |  12   7  17   9   7  67  28    7 |   13  12  11  12   8  64  37    8
  13  |  18   7  19   6   9  24  26    6 |   13  10  13  14  15  22  30    9
  14E |  13  13  23  31   6  23  38    8 |   11  17  30  26  17  29  42   14
  15  |  14   9  21  22  12  30   7    6 |   13  11  23  20  16  20  15   12
  16E |  17  18  36  27  12  55  13    9 |   32  14  34  31  26  44  21   21
  17  |   8  12   8  15   8  29  20    5 |   12  20  15  19  12  21  27   12
  18  |  10   9  14   6   9  25  17    4 |   10  13  15  12  18  20  14   10
  19  |  12   7  12   7   7  25  15    4 |    9  12  12  12  10  27  15    9
  20E |  11   9  27   8  12  54  16    6 |   22  19  31  26  23  49  29   22
  21E |  19  19  35  31   9  33  25    9 |   13  26  30  35  23  42  33   19
  22E |  13  28  21  10  11  61  30    9 |   13  19  17  18  23  54  29   15
  23E |  28  20  75  23  19  36  23   12 |   60  75  91  79  83  84  77   73
  24  |  19   7  22  14  12  74  26    8 |   16  12  19  16  11  63  22    8
  25  |  10  11  14   6  10  66  31    7 |   10  13  15  16  12  42  20   11
  26  |  10  10  21   6  10  33  21    5 |   14  14  15  13  19  25  23   12
  27  |   9   8  29   9   5  34   9    5 |    8  13  13  12  10  34  14    9
  28  |  13  19  18   7   8  33  28    6 |   14  25  18  14  18  20  20   15
  29  |  11  12  12  13  10  26  29    6 |   10  14  11  10  14  17  20    7
  31  |  11  11  28   7  10  44  28    7 |   14  13  23  16  17  24  15   13
------|----------------------------------|----------------------------------
 RMS  |  13  13  27  15  10  43  22      |   18  23  26  24  23  74  31
 WRMS |  13  13  23  13  10  38  22      |

Table 3.0736.6   GPS week: 0736   Day: 6   MJD: 49402.0

               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  13  19   9  16  52  20    6 |    8  18  11  14  23  37  24   10
   2E |  11  16  23   6  10  18  18    5 |   18  31  24  17  22  31  29   18
   3  |  11  19   9   5   7 110  15    9 |    9  50  13  16  18 417  57   15
   4  |  13   9  16  18  14  40  59    8 |   10  18  13  21  13  41  29   10
   5E |  22   6  19  13  14  23  41    7 |   19  25  23  21  29  27  40   20
   7  |   9   9  29   9   9  17  30    6 |   12  22  14  21  18  20  30   15
   9  |  13   6  23  11   9  36  41    7 |   11  19  13  12   9  26  44    8
  12  |   5  19   7  11  13  40  37    6 |    8  18  12  10   9  42  45    9
  13  |   6  14  16   9  13  36 122   12 |   10  14  12  13  13  19  48    9
  14E |  17  23  49  23  13  38  22   10 |   24  19  41  36  23  34  31   25
  15  |   9  15  30  11  13  17  24    6 |   11  21  28  14  14  20  28   10
  16E |  29  34  37  83  19  79  64   21 |   33  18  29  28  25  59  41   18
  17  |   7  13  22   7   8  46  27    6 |   11  18  14  15  13  30  34   11
  18  |   8  11  23  12  12  29  19    5 |   11  18  12  11  16  20  23    9
  19  |   8   6  27   7  12  20  14    5 |   10  18  11  13  12  12  24    9
  20E |  17  17  27  13  13  37  24    7 |   30  22  37  27  26  20  30   24
  21E |  23  13  24  23  18  50  24    9 |   18  33  27  31  28  32  47   22
  22E |   8  19  25   8   9  64  32    8 |   15  22  15  19  21  57  32   16
  23E |  30  11  44  15  23  61  25   11 |   47  58  69  48  85  47  50   54
  24  |  23  12  25  19  22  43  41    9 |   10  24  10  28  17  36  23   13
  25  |   9  18  25   9  11  30  33    6 |   10  32  16  14  14  32  21   12
  26  |  13  17  25   6  16  59  33    8 |   10  30   8  16  21  42  29   11
  27  |   9   5  13   7   8  28  12    4 |   10  19  11  12  14  25  22    9
  28  |  10   9  18   5  15  27  26    5 |   13  21  15  14  18  25  25   13
  29  |  11  11  11  10   6  29  17    4 |   11  14  13  14  14  19  26    9
  31  |  11   6  22   7  16  30  27    6 |   12  21  13  18  20  39  21   15
------|----------------------------------|----------------------------------
 RMS  |  15  15  25  20  13  45  39      |   17  25  23  21  24  88  34
 WRMS |  13  15  21  11  14  43  39      |