[IGSREPORT-1528] Wk 0784 JPL Analysis Report
D
D
Tue Jan 31 10:57:01 PST 1995
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IGS Electronic Report Tue Jan 31 10:57:01 PST 1995 Message Number 1528
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Author: D C Jefferson
Subject: Wk 0784 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0784 (DAYS 15-21, DATES 1995 Jan 15 - Jan 21)
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Submitted by the JPL IGS/FLINN Analysis Team:
J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb
all at the Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA 91109.
Files listed below are available in Unix compressed format and can be
retrieved using anonymous ftp to sideshow.jpl.nasa.gov (128.149.70.41),
directory pub/jpligsac/0784. These files have also been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl07847.sum This text file.
jpl07847.erp Earth rotation parameters for GPS week 784.
jpl0784[0-6].sp3 GPS ephemerides for GPS week 784, sp3 format.
______________________________________________________________________________
SUMMARY FILE UPDATE
We begin in this report including a new table that provides a weekly summary
summary of engineering data for each site analyzed and all GPS satellites.
We will no longer include the site availability and clock repeatability tables.
The first field identifies the receiver or transmitter. Receivers with
a `.' in the fifth character do not contribute to the determination of
satellite and earth orientation parameters (that is, are point positioned).
(Note that the same site can appear both as participating in the global
solution _and_ being point positioned.) Receivers with a `*' in this
position are tightly constrained in our analyses.
The second field identifies the number of days for which a valid clock
solution exists. In the case of a reference clock (usually ALGO), the
number is estimated from the number of phase points observed during the
week.
The third field contains the weekly rms for the clock solution. The
fourth field has the average clock solution for the week.
Fields five and six have the rms postfits for the week for code and
phase data.
Field seven has the average arc length in hours, defined as the total
number of phase measurements divided by the total number of phase breaks
divided by 12 (ther are 12 5-minute intervals in 1 hour).
GENERAL
Starting day 18 (Jan 18), we include data from two new sites: GUAM (USGS Guam
Observatory, Dededo, Guam), and SHAO (Shanghai Observatory, Sheshan, China).
The locations of these sites are such that their positions are estimated along
with the global set of stations used to determine the GPS orbits. The
following nominal coordinates were assumed:
GUAM: X = -5071321.9000 m, Y = 3568363.8000 m, Z = 1488900.8000 m
SHAO: X = -2831734.8000 m, Y = 4675668.0000 m, Z = 3275370.7000 m
Also beginning day 21 (Jan 21), we include data from ONSA in our global
solution.
Due to potential problems, data from the following stations were not
considered for use in the global solution for the day indicated. (For
geographical reasons, they may not have been used in any case.)
WARNING: Data from BOR1 excluded on day 015 (Jan 15).
WARNING: Data from HOB2 excluded on day 016 (Jan 16).
WARNING: PRN31 not used on days 20 and 21 (Jan 20, 21); little or no ephemeris data available.
In the following table, UT1R-UTC are the integrated values based on estimated
LODR values in the adjacent column. See IGS Report No. 1498 (jpl07827.sum)
for details:
JPL ERP TABLE GPS week 784 (1995 Jan 15 - Jan 21)
MJD XPole Ypole UT1R-UTC LODR Xsig Ysig UTsig LODsig Nr Nf Nt Xrt Yrt
10**-5" usec us/d 10**-5" us us/d 10**-5"/d
49732.50 -12981 45226 360807 2453 6 6 12 12 32 12 25 81 274
49733.50 -12937 45501 358385 2392 6 6 13 13 32 12 25 92 264
49734.50 -12903 45712 355994 2390 6 7 14 14 32 12 25 94 254
49735.50 -12831 45920 353604 2390 7 8 14 14 32 12 25 121 239
49736.50 -12755 46079 351228 2362 6 6 13 13 32 12 25 139 178
49737.50 -12629 46228 348823 2447 6 6 13 13 32 12 24 140 180
49738.50 -12527 46381 346361 2477 6 7 14 14 32 12 24 143 214
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 784:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 784 (1995 Jan 15 - Jan 21)
95 1 15 95 1 16 95 1 17 95 1 18 95 1 19 95 1 20 95 1 21
prn 3d rss (m)
1 0.36 0.43 0.66 0.92 0.52 0.25 0.28
2 0.27 0.27 0.23 0.17 0.13 0.47 0.35
4 0.12 0.18 0.29 0.23 0.14 0.26 0.42
5 0.19 0.14 0.42 0.36 0.21 0.16 0.14
6 0.19 0.24 0.21 0.34 0.19 0.28 0.31
7 0.14 0.23 0.35 0.41 0.20 0.13 0.20
9 0.13 0.25 0.26 0.27 0.20 0.12 0.18
12 0.36 0.42 0.52 0.61 0.59 0.52 0.57
14 0.47 0.40 0.44 0.35 0.27 0.40 0.43
15 0.32 0.42 0.18 0.17 0.32 0.37 0.22
16 0.22 0.18 0.32 0.30 0.14 0.11 0.12
17 0.21 0.31 0.39 0.30 0.31 0.31 0.30
18 0.17 0.16 0.07 0.09 0.24 0.26 0.08
19 0.19 0.16 0.13 0.20 0.15 0.20 0.17
20 0.29 0.34 0.85 1.06 0.22 0.24 0.21
21 0.18 0.14 0.19 0.12 0.32 0.22 0.27
22 0.12 0.16 0.34 0.17 0.15 0.34 0.34
23 0.35 0.36 0.28 0.35 0.38 0.44 0.34
24 0.34 0.21 0.23 0.38 0.34 0.14 0.17
25 0.19 0.24 0.22 0.19 0.22 0.20 0.22
26 0.16 0.13 0.16 0.15 0.15 0.22 0.12
27 0.14 0.11 0.08 0.09 0.11 0.11 0.17
28 0.14 0.17 0.30 0.31 0.31 0.26 0.28
29 0.11 0.17 0.10 0.14 0.15 0.18 0.19
31 0.13 0.11 0.22 0.17 0.1
_______________________
END ORBIT REPEATABILITY TABLE
The following table statistically summarizes this week's "engineering data", as
described above:
JPL ENGINEERING DATA SUMMARY TABLE GPS week 784 (1995 Jan 15 - Jan 21)
receiver/transmitter (dot means point positioned, * means fiducial site)
| days analyzed
| | rms clock noise (ns)
| | | average clock solution (us)
| | | | rms pseudorange (cm)
| | | | | (dot means pcode not analyzed)
| | | | | rms phase (mm)
| | | | | | average arc (hr)
| | | | | | |
|___ |__ |_______ |_______ |___ |___ |__
ALBH 6.9 .636e+04 22.2 51.3 4.16 1.96
ALGO* 6.9 . . 116. 6.58 3.43
AOA1. 6.9 188. .267 74.4 9.63 1.26
AREQ 3.9 144. .368 38.7 5.12 1.98
BLYT. .4 .228e+07 -.286e+04 49.7 8.00 6.43
BOGT 3.3 108. .263 46.7 6.47 1.26
BOR1. 6.8 2.81 -1.13 43.6 8.48 .538
BRAN. 4.8 .784e+06 152. 100. 10.1 3.63
BRMU 7.0 .792e+07 -.161e+05 44.0 6.19 2.85
BRUS. 7.0 428. -4.07 65.9 7.79 3.79
CAS1 6.8 8.07 494. 39.3 5.59 1.75
CASA. 4.4 .564e+07 -.145e+05 . 10.0 1.04
CIT1. 7.0 104. .313 61.0 8.60 2.28
DAV1 5.9 .262e+05 124. . 4.75 1.18
DRAO. 7.0 .736 2.76 52.3 7.49 3.70
FAIR* 7.0 2.02 -.246 . 5.32 1.25
FORT 6.9 167. 1.50 50.9 6.46 2.89
GODE. 6.9 .223 -.561 63.0 8.25 2.20
GOLD* 6.8 .433 5.30 . 4.61 2.40
GRAZ. 5.7 17.6 .215 . 8.87 .876
GUAM 3.5 128. .373 71.6 6.50 2.16
HARV. 6.9 52.6 .191e+04 84.1 10.2 2.37
HERS. 5.4 .140e+04 625. . 10.1 1.04
HOB2. 5.3 .187e+04 16.3 50.3 8.96 .518
JPLM. 5.5 32.6 284. 38.2 8.62 3.26
KERG 7.0 169. -24.1 . 5.16 2.48
KIRU. 6.9 2.42 -.791 63.6 10.6 1.20
KIT3 3.9 107. .291 75.5 4.74 3.52
KOKB* 7.0 .174 -.303e-01 . 5.74 2.13
KOSG* 5.1 3.85 2.24 . 3.47 2.61
KOUR 6.9 2.11 9.49 . 7.86 1.21
LBCH. 6.8 .465e+04 .563 96.7 10.3 1.13
MADR* 6.7 .112 -32.0 . 4.59 2.84
MAS1 6.9 6.67 2.53 53.0 4.17 3.13
MATE. 6.8 1.04 .669 . 8.74 2.16
MCMU 1.9 94.9 .269 . 5.50 1.96
MDO1 7.0 63.4 .432 33.6 4.46 3.22
METS 5.9 2.07 -.169 . 3.71 2.01
METS. .5 7.64 -.188 . 9.00 .871
NIST. 1.8 36.6 -2.20 50.0 9.04 4.77
NLIB 6.9 .145 .877 36.0 3.61 3.20
NYAL. 3.2 .514 -2.31 . 7.55 1.53
OATT. 6.9 217. .319 109. 9.73 1.02
ONSA. .9 .726e-01 9.80 67.0 11.0 1.88
PAMA 6.9 18.8 61.8 . 11.9 .264
PERT 7.0 15.8 38.6 59.5 4.73 3.68
PIE1. 6.9 .181 -3.77 56.6 8.62 1.79
POTS. 4.8 .118e+05 -1.21 70.9 7.89 1.85
QUIN. 6.9 2.63 2.71 66.8 8.73 1.63
RCM5 6.9 2.39 .385 . 4.77 2.19
SANT* 7.0 1.14 .476 . 5.73 1.62
SHAO 3.8 .155e+05 83.2 45.1 3.76 2.22
STJO 4.9 14.4 139. 58.2 4.63 3.51
TAIW 3.0 3.33 404. . 5.05 2.04
TAIW. 3.9 17.0 608. . 11.8 1.64
TIDB* 6.5 120. .360 . 5.58 2.01
TMGO 3.0 .121e+04 .242 176. 4.70 2.79
TMGO. 4.0 42.9 .286 171. 9.14 2.76
TROM* 7.0 8.82 756. . 5.78 1.08
TSKB 5.9 2.34 86.6 70.7 5.00 2.20
USC1. 6.9 109. .312 65.8 8.88 2.19
USUD 1.0 .724 .575 39.0 4.00 2.15
USUD. 5.8 .720 .629 43.9 9.40 2.38
VILL. 6.9 324. 1.83 50.5 9.44 4.43
WEST. 7.0 .366 .683 66.9 8.50 1.62
WETT* 7.0 313. 2.91 . 4.92 2.12
WLSN. 6.2 .157e+04 .245 78.8 9.18 .809
YAR1* 6.8 45.0 .666 . 5.07 3.02
YELL* 7.0 .372 -1.23 38.3 5.15 1.12
PRN01 6.1 .347e+04 -33.7 65.3 6.50 1.83
PRN02 6.7 80.9 -138. 72.6 8.47 1.75
PRN04 6.9 81.8 8.74 67.8 7.45 1.13
PRN05 6.8 79.7 85.9 62.1 10.9 1.40
PRN06 7.0 81.1 589. 65.1 7.00 1.64
PRN07 7.0 80.6 701. 65.8 6.90 1.50
PRN09 7.0 82.1 -18.2 68.1 6.90 1.65
PRN12 7.0 .794 -271. 78.1 5.62 2.36
PRN14 6.9 83.4 8.41 64.4 7.05 1.24
PRN15 7.0 3.66 152. 82.7 6.75 1.21
PRN16 7.0 79.6 -77.4 79.2 8.05 1.29
PRN17 7.0 82.1 -70.6 67.2 7.18 1.96
PRN18 7.0 81.0 -5.84 63.8 6.74 1.56
PRN19 7.0 81.7 89.7 71.5 6.49 1.66
PRN20 6.6 82.0 98.3 68.4 8.34 1.35
PRN21 7.0 82.6 -11.7 67.7 6.47 2.13
PRN22 6.6 82.9 188. 75.0 10.7 1.26
PRN23 6.9 80.5 5.64 66.0 7.15 1.85
PRN24 7.0 83.6 323. 63.7 7.44 1.53
PRN25 7.0 81.5 .416 69.2 7.31 1.47
PRN26 7.0 82.3 -52.5 75.6 7.02 1.64
PRN27 7.0 81.5 17.6 64.2 6.54 2.01
PRN28 7.0 2.27 62.1 73.5 7.02 1.61
PRN29 7.0 83.3 5.54 63.6 6.46 1.64
PRN31 4.0 222. 79.3 72.9 6.73 1.85
_______________________
END ENGINEERING DATA SUMMARY 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
95 1 15 95 1 16 95 1 17 95 1 18 95 1 19 95 1 20 95 1 21
prn 3d rss (m)
1 10.0 8.6 5.6 4.6 5.5 6.4 7.6
2 5.8 6.8 7.7 6.2 7.8 7.2 6.9
4 16.6 12.4 12.9 13.7 13.0 11.2 12.3
5 9.5 7.3 7.8 8.4 8.2 7.0 7.4
6 5.0 6.0 6.3 5.3 5.3 5.8 5.8
7 6.0 5.8 5.7 5.5 6.0 5.7 6.5
9 10.1 11.4 11.7 9.9 9.0 9.2 9.1
12 3.3 4.0 3.0 2.8 3.0 2.7 3.1
14 4.2 4.0 3.8 4.0 4.6 7.7 4.0
15 10.0 11.4 13.1 14.1 9.2 8.4 12.8
16 11.8 6.9 7.4 6.7 6.8 9.0 7.0
17 9.0 10.0 12.1 11.7 10.6 9.2 9.5
18 5.5 4.7 3.1 5.5 4.7 4.4 4.3
19 9.6 10.7 8.6 9.9 9.8 9.6 11.6
20 6.8 7.5 6.6 6.0 6.2 5.6 5.5
21 6.2 4.2 5.9 5.4 5.1 6.3 8.9
22 7.9 8.1 8.0 7.7 9.0 6.5 6.4
23 23.1 18.9 17.8 18.7 20.5 22.6 13.6
24 14.3 13.5 12.3 11.0 11.6 12.7 12.8
25 9.3 9.5 6.5 6.1 8.2 8.8 4.5
26 8.4 8.9 8.7 6.0 6.7 7.5 6.0
27 4.6 8.0 9.4 6.0 6.6 7.9 8.6
28 6.9 7.1 4.2 4.4 4.4 2.9 3.4
29 7.6 7.2 7.3 6.6 6.2 6.0 4.3
31 6.4 65.9 5.7 6.9 5.4
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
[Mailed From: djeff at cobra.jpl.nasa.gov]
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