[IGSREPORT-7262] Wk 1064 JPL GNAAC Analysis Report
Robert F Meyer
rfm at cobra.jpl.nasa.gov
Wed Jun 14 17:09:20 PDT 2000
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IGS Electronic Report 14 Jun 17:09:45 PDT 2000 Message Number 7262
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Author: R F Meyer
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GNAAC COMPARISON FROM JPL FOR GPS WEEK 1064 MAY 28, 2000 - JUN 03, 2000
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R F Meyer (Raytheon, Pasadena, CA); M B Heflin, J F Zumberge, D C Jefferson,
M M Watkins, F H Webb (Jet Propulsion Laboratory, California Institute of
Technology, Pasadena, CA)
Solutions in SINEX format were obtained from COD, EMR, ESA, GFZ, JPL, NGS, and
SIO. Each center was compared to each other center by estimating a 7-parameter
Helmert transformation to minimize the least-squares coordinate residuals.
The following table summarizes comparison results. The North, East, and
Vertical WRMS values are given in mm for each pair. The number of common sites
is given directly underneath the values for WRMS. The number underneath each
center's name is the scale factor applied to the formal errors from that
center. Transformation parameters for each pair are given at the end of the
report.
We also compute a free-network combination of solutions from all centers. Each
solution is scaled and edited according to the results of pairwise comparisons.
Then all free-network solutions are rigorously combined using their full
covariance matrices. Sites common to all solutions are used to compare
individual solutions with the combination and residuals are given in the first
row of the comparison table.
TABLE OF COMPARISON RESIDUALS (N E V in mm)
-----------+---------+---------+---------+---------+---------+
cod emr esa gfz jpl ngs
c+---------+---------+---------+---------+---------+---------+
o| 0.9 1.9| 3.1 4.8| 1.9 3.2| 1.4 1.0| 2.0 1.6| 4.5 5.7|
m| 6.9 | 3.4 | 7.0 | 4.6 | 4.8 | 9.5 |
b+ 10 | 10 | 10 | 10 | 10 | 10 |
++---------+---------+---------+---------+---------+---------+
cod | 4.0 5.3| 3.0 4.3| 3.2 3.8| 3.3 3.3| 5.7 6.6|
| 11.7 | 10.9 | 12.0 | 12.0 | 11.0 |
15.0 | 35 | 38 | 58 | 53 | 61 |
+---------+---------+---------+---------+---------+
emr | 6.4 7.3| 3.2 4.7| 3.4 5.7| 7.9 11.9|
| 11.1 | 8.7 | 5.6 | 12.5 |
5.0 | 21 | 25 | 25 | 31 |
+---------+---------+---------+---------+
esa | 3.8 3.9| 3.9 5.0| 5.1 8.1|
| 7.5 | 10.2 | 12.7 |
8.0 | 25 | 30 | 40 |
+---------+---------+---------+
gfz | 2.3 2.5| 6.4 7.7|
| 7.6 | 10.7 |
14.0 | 43 | 49 |
+---------+---------+
jpl | 6.6 7.4|
| 9.3 |
4.0 | 44 |
+---------+
ngs
13.0
COD TO EMR TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .4318E+02
DOF = 98
CHI^2/DOF = .44
RX = .2185E-08 +- .1256E-09 rad
RY = .6454E-09 +- .1319E-09 rad
RZ = .1217E-06 +- .1604E-09 rad
TX = -.1903E-01 +- .1036E-02 m
TY = -.5466E-02 +- .1020E-02 m
TZ = .6391E-02 +- .1271E-02 m
S = .3486E-09 +- .2567E-09 parts
----------------------------------------
COD TO ESA TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .8299E+02
DOF = 107
CHI^2/DOF = .78
RX = .2627E-08 +- .1475E-09 rad
RY = .4637E-09 +- .1385E-09 rad
RZ = .1215E-06 +- .2159E-09 rad
TX = .4460E-02 +- .1182E-02 m
TY = -.1488E-01 +- .1610E-02 m
TZ = -.3550E-01 +- .9074E-03 m
S = .2150E-08 +- .2559E-09 parts
----------------------------------------
COD TO GFZ TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .2874E+03
DOF = 167
CHI^2/DOF = 1.72
RX = .2803E-08 +- .5075E-10 rad
RY = .7082E-09 +- .5029E-10 rad
RZ = .1217E-06 +- .7566E-10 rad
TX = .4938E-02 +- .5175E-03 m
TY = -.4966E-02 +- .5866E-03 m
TZ = -.6658E-02 +- .5463E-03 m
S = .1522E-08 +- .1319E-09 parts
----------------------------------------
COD TO JPL TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .1539E+03
DOF = 152
CHI^2/DOF = 1.01
RX = .2183E-08 +- .6860E-10 rad
RY = .9197E-09 +- .6923E-10 rad
RZ = .1212E-06 +- .7106E-10 rad
TX = -.9848E-02 +- .7036E-03 m
TY = -.4946E-02 +- .8682E-03 m
TZ = .9309E-02 +- .6628E-03 m
S = .6539E-09 +- .1780E-09 parts
----------------------------------------
COD TO NGS TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .2520E+03
DOF = 176
CHI^2/DOF = 1.43
RX = .2837E-08 +- .4403E-10 rad
RY = .1390E-08 +- .4130E-10 rad
RZ = .1208E-06 +- .8759E-10 rad
TX = -.3103E-02 +- .4767E-03 m
TY = .5014E-02 +- .5892E-03 m
TZ = .1051E-01 +- .4078E-03 m
S = .6616E-09 +- .1202E-09 parts
----------------------------------------
EMR TO ESA TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .3548E+02
DOF = 56
CHI^2/DOF = .63
RX = .3908E-09 +- .2647E-09 rad
RY = -.1482E-09 +- .2695E-09 rad
RZ = -.1112E-09 +- .3294E-09 rad
TX = .2287E-01 +- .2081E-02 m
TY = -.9994E-02 +- .2345E-02 m
TZ = -.4307E-01 +- .2081E-02 m
S = .1652E-08 +- .4795E-09 parts
----------------------------------------
EMR TO GFZ TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .1882E+02
DOF = 68
CHI^2/DOF = .28
RX = .8886E-09 +- .1262E-09 rad
RY = -.1570E-10 +- .1368E-09 rad
RZ = .3063E-09 +- .2582E-09 rad
TX = .2151E-01 +- .1433E-02 m
TY = -.1097E-02 +- .1497E-02 m
TZ = -.1386E-01 +- .1197E-02 m
S = .7504E-09 +- .3418E-09 parts
----------------------------------------
EMR TO JPL TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .1429E+02
DOF = 68
CHI^2/DOF = .21
RX = -.1898E-10 +- .1491E-09 rad
RY = .1941E-09 +- .1474E-09 rad
RZ = -.3175E-09 +- .2023E-09 rad
TX = .9406E-02 +- .1346E-02 m
TY = -.2195E-02 +- .1629E-02 m
TZ = .1989E-02 +- .1410E-02 m
S = .2297E-11 +- .3660E-09 parts
----------------------------------------
EMR TO NGS TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .6100E+02
DOF = 86
CHI^2/DOF = .71
RX = .4764E-09 +- .1434E-09 rad
RY = .6300E-09 +- .1563E-09 rad
RZ = -.7853E-09 +- .1887E-09 rad
TX = .1453E-01 +- .1152E-02 m
TY = .9999E-02 +- .1147E-02 m
TZ = .3167E-02 +- .1315E-02 m
S = .4058E-09 +- .2686E-09 parts
----------------------------------------
ESA TO GFZ TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .4821E+02
DOF = 68
CHI^2/DOF = .71
RX = .3045E-09 +- .1718E-09 rad
RY = .3052E-09 +- .1508E-09 rad
RZ = .1229E-09 +- .2505E-09 rad
TX = .8548E-03 +- .1387E-02 m
TY = .1101E-01 +- .1799E-02 m
TZ = .2557E-01 +- .1120E-02 m
S = -.1728E-09 +- .3261E-09 parts
----------------------------------------
ESA TO JPL TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .6755E+02
DOF = 83
CHI^2/DOF = .81
RX = -.5248E-09 +- .1311E-09 rad
RY = .2982E-09 +- .1326E-09 rad
RZ = -.1790E-09 +- .1691E-09 rad
TX = -.1269E-01 +- .1163E-02 m
TY = .9212E-02 +- .1408E-02 m
TZ = .4396E-01 +- .1079E-02 m
S = -.1549E-08 +- .3056E-09 parts
----------------------------------------
ESA TO NGS TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .9807E+02
DOF = 113
CHI^2/DOF = .87
RX = .9659E-10 +- .1315E-09 rad
RY = .1090E-08 +- .1351E-09 rad
RZ = -.9630E-09 +- .1440E-09 rad
TX = -.8618E-02 +- .8873E-03 m
TY = .2016E-01 +- .1002E-02 m
TZ = .4429E-01 +- .8021E-03 m
S = -.5824E-09 +- .1881E-09 parts
----------------------------------------
GFZ TO JPL TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .5115E+02
DOF = 122
CHI^2/DOF = .42
RX = -.7564E-09 +- .7221E-10 rad
RY = .2134E-09 +- .7396E-10 rad
RZ = -.4544E-09 +- .9424E-10 rad
TX = -.1420E-01 +- .7917E-03 m
TY = -.5847E-03 +- .8926E-03 m
TZ = .1620E-01 +- .7618E-03 m
S = -.1050E-08 +- .1933E-09 parts
----------------------------------------
GFZ TO NGS TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .1925E+03
DOF = 140
CHI^2/DOF = 1.38
RX = -.8770E-10 +- .5474E-10 rad
RY = .7532E-09 +- .5006E-10 rad
RZ = -.8496E-09 +- .1090E-09 rad
TX = -.8723E-02 +- .5470E-03 m
TY = .1030E-01 +- .6896E-03 m
TZ = .1737E-01 +- .5256E-03 m
S = -.3769E-09 +- .1461E-09 parts
----------------------------------------
JPL TO NGS TRANSFORMATION PARAMETERS
----------------------------------------
CHI^2 = .1505E+03
DOF = 125
CHI^2/DOF = 1.20
RX = .6610E-09 +- .6888E-10 rad
RY = .5989E-09 +- .6877E-10 rad
RZ = -.5351E-09 +- .9198E-10 rad
TX = .5474E-02 +- .7622E-03 m
TY = .9561E-02 +- .9068E-03 m
TZ = .4149E-03 +- .6675E-03 m
S = .5517E-09 +- .1918E-09 parts
----------------------------------------
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