[IGSMAIL-44] SIO analysis results
Yehuda
Yehuda
Thu Jul 16 10:11:23 PDT 1992
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IGS Electronic Mail 16-JUL-1992 10:11:23 Message Number 44
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THIS FILE CONTAINS 2 MESSAGES
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>From: Yehuda Bock
Subject: SIO analysis results
--------------------
The delay of this submission has been caused by a few factors:
local computer/network problem
leap second increment
earthquake related processing
A) An error in our calender date to MJD routine caused our
earlier submissions to have MJD's 0.5 days greater than
they should have been. This error has now been corrected.
B) The revised analysis described below is based on the analysis
of the first 29 days of the IGS campaign.
1. Analysis Center: Scripps Institute of Oceanography
2. Solution Identifier: Preliminary Submission 920624
3. Software used: GAMIT/GLOBK
4. Definition of Terrestrial Reference Frame:
Origin: Nominally ITRF-90
Orientation: Nominally ITRF-90
Reference epoch: 1992.51 (MJD 48808.5)
Relativity Scale: Terrestrial
Velocity of light: 299792458.0 m/sec
Permanent tidal correction: None
5. Adjusted parameters:
(a) Double-difference data
(b) Single day orbit arcs, 6 ICs and 3 radiation parameters per
satellite-per-day
(c) One-per-day-per-station zenith tropospheric parameter,
(d) Bias parameters, one for each independent double difference
combination.
(e) Station positions with +- 10 m constraints at stations other
than: ALGO, YELL, PIN1, PINB, JPL1, JPLB, SIO1, SIO2, FAIR, KOKR,
USUD, DS10, DS1B, DS40, DS41, DS60, YAR1, MCMU, TAIW, ONSA, WTZ1,
METS, MATE, TROM, NALL, KOSG. For these stations constraints of
+0.001 m for horiziontal and +-0.005 m for the height were used.
(f) X and Y pole position once per day. (No estimate is made of UT1-
AT since these deviations are absorbed into the orbital parameters).
6. Station coordinates used.
DOMES # Name X Y Z Epoch Dur +- X +- Y +- Z Vx Vy Vz
(m) (m) (m) MJD days (m) (m) (m) (m/yr) (m/yr) (m/yr)
X13407S011 DS60 (?) 4849202.502 -360329.180 4114912.961 48808.5 25.0 0.004 0.002 0.004 -0.0101 0.0185 0.0135
X????? MASPollom 5439189.142 -1522054.840 2953464.085 48808.5 5.0 0.008 0.004 0.006 -0.0040 0.0185 0.0169
X40701 SANTogue 1769692.989 -5044573.785 -3468321.402 48808.5 26.0 0.010 0.011 0.007 0.0013 -0.0044 0.0071
X40104M002 ALGO 918129.628 -4346071.218 4561977.781 48808.5 28.0 0.002 0.003 0.003 -0.0193 -0.0029 0.0012
X40127M003 YELL -1224452.371 -2689216.059 5633638.271 48808.5 29.0 0.002 0.002 0.003 -0.0231 -0.0029 -0.0064
X40407M00? PIN1 PEQ -2369510.372 -4761207.146 3511396.058 48808.5 7.0 0.003 0.005 0.004 -0.0224 0.0218 -0.0004
X40407M002 PIN1 -2369510.392 -4761207.164 3511396.033 48808.5 22.0 0.003 0.003 0.004 -0.0224 0.0218 -0.0004
X40405S0?? DS10 PEQ -2353614.083 -4641385.355 3676976.402 48808.5 4.0 0.004 0.006 0.005 -0.0159 0.0069 -0.0081
X40405S026 DS10 (?) -2353614.078 -4641385.364 3676976.426 48808.5 21.0 0.003 0.004 0.004 -0.0159 0.0069 -0.0081
X40460M001 SIO1 -2455521.684 -4767213.382 3441654.860 48808.5 12.0 0.003 0.005 0.004 -0.0335 0.0302 0.0180
X40460 SIO2 -2455539.233 -4767224.071 3441628.818 48808.5 23.0 0.003 0.004 0.004 -0.0335 0.0302 0.0180
X40400M005 JPL1 -2493304.063 -4655215.510 3565497.280 48808.5 22.0 0.003 0.004 0.004 -0.0372 0.0153 0.0120
X40400M00? JPL1 PEQ -2493304.072 -4655215.488 3565497.266 48808.5 7.0 0.003 0.005 0.004 -0.0372 0.0153 0.0120
X40105S004 DRAO (?) -2059164.593 -3621108.342 4814432.375 48808.5 29.0 0.002 0.002 0.003 -0.0201 -0.0023 -0.0103
X40408M001 FAIR -2281621.313 -1453595.746 5756961.963 48808.5 29.0 0.002 0.002 0.004 -0.0233 -0.0027 -0.0099
X92201M002 PAMA (?) -5245195.144 -3080472.123 -1912825.685 48808.5 5.0 0.013 0.012 0.007 -0.0416 0.0527 0.0293
X40424M004 KOKR -5543838.047 -2054587.474 2387809.481 48808.5 22.0 0.005 0.003 0.006 -0.0100 0.0613 0.0294
X?????S??? MCMU (?) -1310696.417 310469.332 -6213368.516 48808.5 26.0 0.013 0.012 0.007 0.0091 -0.0107 -0.0024
X50103S DS42 (?) -4460996.153 2682557.281 -3674444.134 48808.5 24.0 0.011 0.010 0.008 -0.0363 0.0023 0.0458
X21729S001 USUD -3855262.621 3427432.238 3741020.938 48808.5 20.0 0.006 0.004 0.008 -0.0212 -0.0097 -0.0130
X23902S001 TAIW -3024781.850 4928936.970 2681234.492 48808.5 27.0 0.007 0.008 0.009 -0.0232 -0.0078 -0.0118
X50107M004 YAR1 -2389025.457 5043316.885 -3078531.092 48808.5 24.0 0.011 0.010 0.008 -0.0485 0.0107 0.0552
X30302M001 HART (?) 5084625.136 2670366.576 -2768494.246 48808.5 12.0 0.014 0.012 0.008 -0.0013 0.0241 0.0209
X10503 METS (?) 2892571.006 1311843.296 5512634.000 48808.5 14.0 0.003 0.002 0.004 -0.0192 0.0132 0.0070
X10302M003 TROM 2102940.434 721569.354 5958192.082 48808.5 29.0 0.002 0.002 0.004 -0.0186 0.0110 0.0052
X12734 MATE new 4641949.794 1393045.251 4133287.214 48808.5 26.0 0.004 0.002 0.005 -0.0157 0.0179 0.0117
X14201 WTZ1 1200 4075578.649 931852.641 4801569.953 48808.5 26.0 0.004 0.002 0.004 -0.0161 0.0165 0.0105
X10402M004 ONSA 3370658.736 711876.990 5349786.800 48808.5 29.0 0.003 0.001 0.004 -0.0168 0.0147 0.0086
X10317M001 NALL 1202431.359 252626.760 6237770.778 48808.5 29.0 0.002 0.002 0.004 -0.0178 0.0083 0.0031
X13504M003 KOSG (?) 3899225.316 396731.763 5015078.257 48808.5 21.0 0.003 0.002 0.004 -0.0150 0.0161 0.0104
NOTES:
(a) Those sites without a DOMES point number are at unknown locations,
and those sites with a (?) in the Alternate descriptions possibly have
an incorrect DOMES number.
(b) The epoch refers to the epoch at which the site position applies
and not the mid-point of the data span. We have also added the
velocities adopted for these sites at the end of each line. For most sites
these are the NUVEL-1 velocities with the North American AM0-2 velocity
added. For PIN1 and DS10, Observed velocities (based on a combined VLBI/
GPS solution using ~10 years of data have been used).
(c) The PE notation in the site name (PINB, DS1B and JPLB) denotes
post-Landers earthquake position (applicable after 11:58 UTC June 28, 1992.
(d) These coordinates were estimated from the first 29 days of IGS data.
They have been rotated and translated into the ITRF 1990 frame by use
of the horizontal coordinates at YELL_GPS, PIN1_GPS, SIO1_GPS, FAIR_GPS,
USUD_GPS, DS10_GPS, DS60_GPS, YAR1_GPS, ONSA_GPS, WTZ1_GPS, TROM_GPS,
KOSG_GPS. The rms difference between the horizontal coordinates of
these sites and our previous realization (first IERS submission) was
15 mm).
6. Solution 920714
* MIT_TO_IERS: Run on 1992/ 7/14 14:45
* Input file : pmu920714.mit
48779.5 -0.15531 0.31885 -0.517136 0.00019 0.00020 0.000000 1.93 0.001 0.000 0.000 21 17 0
48780.5 -0.15624 0.32115 -0.519883 0.00021 0.00021 0.000000 1.84 0.109 0.000 0.000 21 16 0
48781.5 -0.15368 0.32302 -0.522617 0.00027 0.00025 0.000000 1.32 0.046 0.000 0.000 21 17 0
48782.5 -0.15451 0.32460 -0.525143 0.00026 0.00023 0.000000 1.32 0.117 0.000 0.000 21 17 0
48783.5 -0.15472 0.32779 -0.527309 0.00020 0.00020 0.000000 1.80 -0.010 0.000 0.000 21 17 0
48784.5 -0.15513 0.33001 -0.529055 0.00027 0.00024 0.000000 1.50 0.080 0.000 0.000 22 17 0
48785.5 -0.15373 0.33206 -0.530225 0.00023 0.00022 0.000000 1.42 0.000 0.000 0.000 22 17 0
48786.5 -0.15389 0.33508 -0.531264 0.00023 0.00022 0.000000 1.64 -0.023 0.000 0.000 21 17 0
48787.5 -0.15227 0.33830 -0.532088 0.00037 0.00033 0.000000 1.63 -0.062 0.000 0.000 17 17 0
48788.5 -0.15213 0.34141 -0.532830 0.00020 0.00022 0.000000 1.59 -0.011 0.000 0.000 21 17 0
48789.5 -0.15235 0.34447 -0.533614 0.00024 0.00025 0.000000 1.36 -0.040 0.000 0.000 20 17 0
48790.5 -0.15193 0.34715 -0.534539 0.00025 0.00025 0.000000 1.64 -0.044 0.000 0.000 21 17 0
48791.5 -0.15280 0.35032 -0.535654 0.00023 0.00024 0.000000 1.79 0.109 0.000 0.000 20 17 0
48792.5 -0.15191 0.35305 -0.536981 0.00020 0.00019 0.000000 2.22 0.060 0.000 0.000 20 17 0
48793.5 -0.15268 0.35566 -0.539967 0.00018 0.00019 0.000000 1.54 0.011 0.000 0.000 20 17 0
48794.5 -0.15108 0.35789 -0.541918 0.00021 0.00021 0.000000 1.35 0.000 0.000 0.000 23 17 0
48795.5 -0.15072 0.35924 -0.543939 0.00019 0.00020 0.000000 1.81 0.023 0.000 0.000 24 17 0
48796.5 -0.15012 0.36213 -0.545936 0.00017 0.00018 0.000000 1.50 0.098 0.000 0.000 24 17 0
48797.5 -0.14935 0.36385 -0.547805 0.00020 0.00023 0.000000 1.87 0.062 0.000 0.000 23 17 0
48798.5 -0.14714 0.36625 -0.549454 0.00026 0.00025 0.000000 1.36 0.121 0.000 0.000 21 17 0
48799.5 -0.14706 0.36930 -0.551219 0.00027 0.00028 0.000000 1.25 0.146 0.000 0.000 21 17 0
48800.5 -0.14466 0.37204 -0.552509 0.00024 0.00024 0.000000 1.30 0.085 0.000 0.000 22 17 0
48802.5 -0.14321 0.37720 -0.554140 0.00024 0.00027 0.000000 1.25 0.158 0.000 0.000 22 17 0
48803.5 -0.14155 0.38038 -0.555153 0.00020 0.00025 0.000000 1.89 0.119 0.000 0.000 21 17 0
48804.5 -0.14115 0.38151 0.443530 0.00016 0.00017 0.000000 2.21 0.129 0.000 0.000 23 17 0
48805.5 -0.13910 0.38475 0.441782 0.00018 0.00021 0.000000 1.98 0.083 0.000 0.000 22 17 0
48806.5 -0.13795 0.38644 0.439604 0.00020 0.00023 0.000000 1.58 0.133 0.000 0.000 22 17 0
48807.5 -0.13692 0.38956 0.437134 0.00021 0.00024 0.000000 1.72 0.096 0.000 0.000 23 16 0
48808.5 -0.13486 0.39141 0.434606 0.00018 0.00020 0.000000 1.62 0.038 0.000 0.000 24 16 0
NOTES: UT1 not estimated. Value given is apriori used in analysis. The rms is the square of chi**2
per degree of freedom in our solution. It nominally should be 1.0. st and sv are numbers of stations
and satellites in solution.
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>From: James F. Zumberge
Subject: JPL analysis results
--------------------
Submitted by
J F Zumberge, G Blewitt, M B Heflin, D C Jefferson, F H Webb
all at the Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA 91109.
The following files have been submitted to the JPL BODHI archive, and are
generally available (contact starr at logos.jpl.nasa.gov for details regarding
access to bodhi):
filename contents
jpl06507.erp Earth rotation results for week beginning 1992 June 21
jpl06517.erp Earth rotation results for week beginning 1992 June 28
jpl06507.sum The JPL-contributed portion of IGS Mail Message Number 37
jpl06517.sum The name of this text file
jpl06517.eph Precise orbits in the NGS sp1 format for week beginning
1992 June 28
These files should also be available shortly from the CDDIS.
Our analysis of GPS week 651 (1992 Jun 28 - Jul 04) follows the strategy de-
scribed in detail in IGS Mail Message 37 (file jpl06507.sum). For that week,
we have determined that prn12 was unsuitable for use on July 4 (and probably
through July 7, as well). Our precise ephemerides completely ignore data from
prn12 in the solution of the positions of other satellites for that day.
WARNING: It is recommended that prn 12 not be used for 1992 Jul 04.
Note that our weekly orbit files are each a concatenation of 24-hour orbital
arcs from each GPS day. This is currently done because top priority has been
given to quality control, as provided by the "orbit repeatability" table given
below, where independent daily solutions are compared at the day boundaries.
We will extend the length of orbital arcs using stochastic estimation of force
parameters once we are satisfied with quality control procedures. As an
indication of precision, our independent daily global network solutions show
a few parts per billion RMS for long baselines.
The following table summarizes our daily solutions for polar motion for 17 days
beginning June 21. The weeks of June 21 (GPS week 650) and June 28 (GPS week
651) are contained separately in files jpl06507.erp and jpl06517.erp:
JPL UTPM TABLE (1992 Jun 21 - Jul 08)
MJD X Y UT1R-UTC XSIG YSIG UTSIG RMS XYC XUC YUC STA SAT PASS
'' '' sec '' '' sec
48794.5 -.15231 .35740 .00000 .00025 .00033 .00000 .0 .16 .00 .00 25 17 0
48795.5 -.15059 .35946 .00000 .00023 .00029 .00000 .0 .23 .00 .00 27 17 0
48796.5 -.15110 .35929 .00000 .00024 .00029 .00000 .0 .20 .00 .00 27 17 0
48797.5 -.15060 .36119 .00000 .00032 .00036 .00000 .0 .04 .00 .00 25 17 0
48798.5 -.14894 .36726 .00000 .00027 .00033 .00000 .0 .22 .00 .00 22 17 0
48799.5 -.14740 .37000 .00000 .00024 .00029 .00000 .0 .29 .00 .00 24 17 0
48800.5 -.14558 .37239 .00000 .00023 .00029 .00000 .0 .29 .00 .00 27 17 0
48801.5 -.14506 .37571 .00000 .00028 .00037 .00000 .0 .22 .00 .00 25 17 0
48802.5 -.14285 .37905 .00000 .00026 .00032 .00000 .0 .27 .00 .00 25 17 0
48803.5 -.14171 .38090 .00000 .00022 .00026 .00000 .0 .28 .00 .00 27 17 0
48804.5 -.14030 .38376 .00000 .00022 .00027 .00000 .0 .30 .00 .00 25 17 0
48805.5 -.13933 .38622 .00000 .00023 .00028 .00000 .0 .29 .00 .00 26 17 0
48806.5 -.13850 .38702 .00000 .00024 .00031 .00000 .0 .32 .00 .00 24 17 0
48807.5 -.13715 .38970 .00000 .00027 .00034 .00000 .0 .30 .00 .00 26 16 0
48808.5 -.13569 .39171 .00000 .00026 .00031 .00000 .0 .25 .00 .00 26 16 0
48809.5 -.13406 .39399 .00000 .00023 .00028 .00000 .0 .25 .00 .00 26 16 0
48810.5 -.13271 .39464 .00000 .00027 .00032 .00000 .0 .32 .00 .00 26 16 0
48811.5 -.13062 .39847 .00000 .00023 .00027 .00000 .0 .34 .00 .00 26 17 0
END UTPM TABLE
The following table indicates the "orbit repeatability", as defined in IGS Mail
Message 37, for GPS week 651:
JPL ORBIT REPEATABILITY TABLE GPS week 651 (1992 Jun 28 - Jul 04)
92 6 28 92 6 29 92 6 30 92 7 1 92 7 2 92 7 3 92 7 4
prn rms (m)
2 0.66 0.33 0.8 0.4 1.04 1.12 1.11
3 0.39 0.81 0.6 0.5 0.51 0.70 0.70
11 0.53 0.63 0.3 0.4 0.38 1.15 0.82
12 0.99 0.83 0.6 1.2 0.71 7.03 6.78
13 0.77 0.67 0.8 0.6 0.49 0.39 0.77
14 0.49 0.73 0.6 0.9 0.45 1.00 1.09
15 1.09 1.18 1.1 1.1 0.55 0.95 0.98
16 0.32 0.37 0.2 0.3 0.57 0.49 0.32
17 0.66 0.67 0.5 1.0 0.74 1.17 1.08
18 0.41 0.40 0.4 0.4 0.38 0.54 0.61
19 0.97 0.67 0.6 1.0 0.84 0.69 0.58
20 0.91 0.21 0.4 0.5 0.66 0.67 0.81
21 0.64 0.49 0.4 0.7 0.61 0.56 0.79
23 0.43 0.28 0.3 0.4 0.73 0.99 0.85
24 0.70 0.65 0.7 0.8 0.76 0.94 1.05
25 0.92 0.77 1.0 0.8 0.57 0.39 0.59
28 1.55 1.40 1.2 0.9 1.18 2.21 2.00
END ORBIT REPEATABILITY TABLE
As described in IGS Mail Message 37, the following table compares the JPL
precise ephemerides with those from the broadcast ephemeris:
JPL COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
92 6 28 92 6 29 92 6 30 92 7 1 92 7 2 92 7 3 92 7 4
prn rms (m)
2 4.7 6.0 4.4 5.3 7.1 5.4 5.1
3 12.6 12.7 12.5 15.5 11.9 14.6 11.4
11 4.5 6.3 6.9 5.9 7.4 6.5 6.5
12 7.8 13.5 21.1 4.8 9.5 7.5 15.1
13 6.8 8.0 10.7 8.4 5.4 6.8 5.2
14 5.7 4.3 5.0 4.6 4.8 5.6 5.5
15 6.0 6.8 6.6 5.3 7.8 4.8 6.3
16 4.7 6.6 6.3 6.9 6.1 7.2 4.8
17 8.7 11.4 6.4 6.4 6.1 5.3 7.0
18 7.6 8.3 7.4 8.9 7.1 6.6 7.9
19 9.7 7.5 9.2 7.3 5.8 5.4 5.9
20 4.8 4.2 3.5 3.1 3.6 3.8 6.2
21 4.1 4.4 4.2 3.9 4.0 4.3 4.2
23 3.9 5.0 3.9 4.1 5.0 3.8 6.1
24 15.4 16.5 17.0 12.9 12.8 10.6 9.4
25 15.8 6.2 7.7 7.6 7.1 5.1 5.1
28 4.1 6.8 4.7 5.5 4.7 4.0 5.5
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
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