Date: Fri, 10 Aug 2001 11:13:54 -0700 (PDT) From: David C Jefferson Message-Id: <200108101813.LAA12417@bierman.jpl.nasa.gov> To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov Subject: [IGSREPORT-8515] Wk 1125 JPL Analysis Report Sender: owner-igsreport Precedence: bulk ****************************************************************************** IGS Electronic Report 10 Aug 11:13:55 PDT 2001 Message Number 8515 ****************************************************************************** Author: D C Jefferson ****************************************************************************** JPL ANALYSIS REPORT GPS-WEEK 1125 (DAYS 210-216, DATES 2001 Jul 29 - Aug 04) ****************************************************************************** Submitted by the JPL IGS/FLINN Analysis Team: D C Jefferson, Y E Bar-Sever, M B Heflin, F H Webb, J F Zumberge 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 (137.78.60.30), directory pub/jpligsac/1125. These files (except for *.tro) have also been sent to the CDDIS. ______________________________________________________________________________ filename contents ______________________________________________________________________________ jpl11257.sum This text file. jpl11257.erp Earth rotation parameters for GPS week 1125. jpl11257.snx Ground station coordinates for GPS week 1125, SINEX format. jpl1125[0-6].sp3 GPS ephemerides for GPS week 1125, sp3 format. jpl1125[0-6].tro Ground station troposphere estimates for GPS week 1125. jpl1125[0-6].clk GPS and ground station clocks for GPS week 1125, RINEX. ______________________________________________________________________________ Median Orbit Repeatability (see table below): 7.0 cm According to the file ftp://tycho.usno.navy.mil/pub/gps/gpsnanu.2001, PRN22 was unusable beginning day 209 23:58 UT until further notice. This satellite was used in all our analyses this week except day 212. The clock onboard this satellite was observed to have non-linear behavior on days 210 and 211. This week, we add one new candidate global station. As with other sites, this site is given the opportunity to participate in the orbit and clock solution as the global site distribution varies. The following nominal coordinates were assumed: X (m) Y (m) Z (m) MOBN (Obninsk, Russian Fed.) 2936432.1704 2178364.5478 5208858.2553 Due to potential problems, data from stations mentioned below 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 PRN15 excluded the entire GPS week 1125. WARNING: Data from PRN22 excluded day 212. WARNING: Data from PRN19 excluded day 216. WARNING: Data from CARR, DRAG, ESTI, LBCH, PETP, TOW2, TRAB, WLSN excluded day 210. WARNING: Data from CARR, LBCH, NVSK, PETP, TORP, UNSA, WES2, WLSN excluded day 211. WARNING: Data from CARR, LBCH, NRC1, PETP, TORP, UNSA, WLSN excluded day 212. WARNING: Data from HARV, LBCH, NKLG, TORP excluded day 213. WARNING: Data from EPRT, LBCH, NKLG, NRC2, PETP, WLSN excluded day 214. WARNING: Data from BRUS, PETP excluded day 215. WARNING: Data from HOB2, MAUI, PETP, WLSN excluded day 216. JPL REFERENCE CLOCK TABLE GPS week 1125 (2001 Jul 29 - Aug 04) 2001-07-29 NRC1 2001-07-30 USNO 2001-07-31 USNO 2001-08-01 USNO 2001-08-02 USNO 2001-08-03 NRC1 2001-08-04 NRC1 END REFERENCE CLOCK TABLE 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 1125 (2001 Jul 29 - Aug 04) version 2 MJD XPole Ypole UT1R-UTC LODR Xsg Ysg UTsg LOsg Nr Nf Nt Xrt Yrt 10**-6" 10**-6" .1us .1us/d 10**-6" .1us .1us/d 10**-6"/d 52119.50 238208 222447 -417651 -2698 31 37 139 139 42 0 28 -1766 -3073 52120.50 236513 219344 -414925 -2754 31 37 143 143 42 0 28 -1520 -2396 52121.50 235259 216884 -412130 -2836 29 36 141 141 42 0 27 -925 -2366 52122.50 234124 214721 -409436 -2551 28 33 136 136 42 0 28 -1462 -2126 52123.50 232284 212650 -407042 -2236 29 33 139 139 42 0 28 -2282 -2026 52124.50 229581 210293 -405019 -1810 30 39 144 144 42 0 28 -2824 -2761 52125.50 226927 207343 -403524 -1180 30 38 135 135 42 0 27 -2707 -2925 END ERP TABLE The following table indicates the "3-dimensional orbit repeatability", as defined in IGS Mail Message 37, for GPS week 1125: ["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)] JPL ORBIT REPEATABILITY TABLE GPS week 1125 (2001 Jul 29 - Aug 04) 01 7 29 01 7 30 01 7 31 01 8 1 01 8 2 01 8 3 01 8 4 prn 3d rss (cm) 1 6 4 5 5 6 7 5 2 5 5 4 6 3 4 6 3 12 13 11 7 7 4 9 4 8 7 8 7 5 4 6 5 5 5 8 5 6 4 4 6 17 6 7 8 4 5 4 7 6 4 7 4 3 4 4 8 4 6 7 3 4 7 8 9 6 3 5 8 5 4 5 10 7 7 8 6 4 7 4 11 9 9 8 11 10 6 9 13 15 6 8 7 6 7 6 14 6 10 6 5 4 7 4 17 8 18 7 5 5 5 6 18 6 11 10 5 7 6 9 19 20 9 17 18 9 8 20 6 7 8 5 7 18 8 21 7 11 10 7 8 7 9 22 21 4 6 6 8 8 23 23 22 15 14 14 11 7 24 22 24 9 10 6 6 5 25 8 9 6 7 6 7 7 26 6 7 4 10 6 4 7 27 5 4 10 9 6 8 9 28 7 5 6 9 5 6 8 29 6 9 10 4 7 9 5 30 4 6 6 3 5 4 3 31 11 13 13 5 5 17 11 _______________________ END ORBIT REPEATABILITY TABLE The following table statistically summarizes this week's "engineering data", as described in IGS Report No. 1528: JPL ENGINEERING DATA SUMMARY TABLE GPS week 1125 (2001 Jul 29 - Aug 04) receiver/transmitter (* 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) | | | | | | | |___ |__ |_______ |_______ |___ |___ |__ ALGO* 7.0 0.832e-01 0.948 37.2 4.63 3.55 ALIC 3.9 141. -0.480e-01 51.0 5.00 3.83 AREQ 1.0 28.2 113. 24.0 4.00 3.42 ARTU 2.9 11.6 -0.801e-01 35.7 5.00 2.62 AUCK* 5.9 20.7 -0.369e-03 41.2 4.37 2.99 BAHR* 5.8 0.484 764. 32.3 5.33 3.94 BILI 6.0 13.6 -0.852e-01 41.2 5.52 2.76 BJFS 1.0 0.764 286. 19.0 5.00 3.44 CAS1* 1.0 10.4 -0.148e-01 28.0 4.00 1.44 CHAT* 1.0 28.4 0.473e-02 62.0 5.00 3.11 CIC1 7.0 44.6 -0.870e-02 41.0 4.00 3.15 COCO 1.0 31.7 -0.981e-01 39.0 5.00 3.09 CRO1 5.0 0.408 737. 38.0 5.42 3.53 DAV1* 5.7 21.6 -0.407e-02 29.7 4.00 1.40 EISL 6.6 42.4 -0.282e-02 57.1 5.00 2.33 FAIR* 6.6 0.382e+07 -0.420e+04 . 3.89 0.913 FORT* 2.9 0.141 0.289 77.9 5.00 1.78 GALA 5.7 18.1 -0.794e-01 32.4 4.37 3.69 GOUG 0.8 0.290e+06 479. 43.0 5.00 2.66 GUAM* 7.0 20.1 -0.108 57.8 7.31 3.49 HARB 1.0 5.93 927. 47.0 4.00 2.50 HOB2* 1.0 0.401 -428. 43.0 5.00 2.88 HRAO 5.8 21.9 -0.708e-01 71.8 4.00 3.49 IISC 7.0 27.6 -0.972e-01 56.0 6.15 2.89 IRKT* 5.8 43.5 0.142 57.9 5.12 2.52 JAMA 2.0 19.6 -0.904e-01 39.0 6.52 3.58 KELY 4.9 0.559e+05 0.296 35.6 5.00 1.54 KERG* 7.0 1.83 18.3 47.1 5.15 2.46 KOKB* 6.9 1.01 0.958 40.0 6.19 1.21 KOUR* 1.8 22.9 -0.856e-01 43.3 6.00 3.80 KUNM 7.0 57.8 -0.193e-01 73.8 6.03 2.38 LAE1 7.0 19.8 -0.985e-01 59.7 6.44 4.25 MAC1* 5.6 17.0 -0.547e-02 31.5 3.54 2.30 MALI* 5.9 46.1 315. 68.0 7.51 2.39 MANA 1.0 0.289e+06 495. 67.0 7.00 2.04 MAS1* 6.8 2.85 59.2 43.7 4.47 2.76 MAW1 1.0 14.7 -0.143e-01 35.0 4.00 1.64 MCM4* 6.5 0.169e+05 28.0 44.5 4.60 1.37 METS 1.0 1.07 970. 50.0 4.00 2.67 MSKU 2.0 30.1 -0.815e-01 35.0 6.00 3.31 NICO 1.0 17.5 0.669e-03 25.0 5.00 3.85 NKLG 5.0 0.292e+06 486. 68.3 6.00 1.62 NOUM 1.0 0.289e+06 514. 58.0 7.00 1.77 NRC1 3.4 . . 46.0 4.36 3.50 NRIL 5.0 11.2 -0.830e-01 21.6 5.61 2.24 NTUS 5.9 7.11 -0.123e-01 61.8 6.86 4.34 NYA1 5.8 313. 0.507 32.0 4.20 1.62 NYAL* 1.0 0.193 -0.793 55.0 4.00 2.03 OHIG* 7.0 13.6 -0.254e-03 50.9 4.31 2.33 ONSA* 7.0 1.06 318. 43.2 4.90 2.65 PERT* 1.0 19.9 -0.579e-01 59.0 5.00 3.07 PETP 1.0 13.1 -0.751e-01 47.0 7.00 2.65 PIMO 6.9 26.0 -0.779e-02 56.0 4.73 1.05 POL2 1.0 0.145e+06 -81.1 . 4.00 2.74 RAMO 0.9 22.5 -0.886e-01 70.0 6.00 2.72 SANT* 6.8 22.5 -0.739e-01 24.7 5.00 0.980 SELE 3.9 51.5 -0.118e-01 45.2 3.77 3.32 SEY1 1.0 33.5 -0.475e-03 64.0 7.00 1.90 THTI 7.0 0.198e+05 453. 81.6 5.87 2.15 TIDB* 7.0 0.171 318. 27.7 5.00 3.74 TIXI 1.0 11.0 -0.821e-01 41.0 6.00 2.44 TRAB 1.0 13.5 0.336e-01 43.0 6.00 2.71 TSKB* 7.0 1.34 -1.63 54.9 4.72 2.80 URUM 1.0 23.2 -0.180e-01 28.0 6.00 2.86 USNO 4.5 . . 42.0 5.00 3.91 USUD 1.0 0.256 415. 31.0 5.00 3.15 WHIT 1.0 16.1 -69.5 39.0 4.00 2.79 WTZR* 7.0 0.219 -0.520 46.4 5.47 3.03 YAR1* 2.6 280. -1.38 67.7 5.00 1.92 YAR2 3.9 4.60 -0.116e+05 29.6 4.00 3.29 YELL* 7.0 0.114 0.776 44.2 5.16 1.77 ZECK 2.0 39.8 -0.177e-02 32.0 4.53 3.68 PRN01 7.0 4.14 188. 46.7 5.16 2.33 PRN02 7.0 2.96 -52.6 49.7 5.00 2.44 PRN03 7.0 2.21 52.7 47.5 5.00 2.26 PRN04 6.8 0.840 627. 50.5 5.15 2.36 PRN05 7.0 3.21 308. 47.4 5.15 2.47 PRN06 7.0 8.46 -2.27 45.2 5.30 2.20 PRN07 7.0 1.92 446. 48.7 5.00 2.44 PRN08 7.0 3.37 446. 47.9 5.00 2.36 PRN09 7.0 2.48 -0.793 45.3 5.00 2.17 PRN10 7.0 2.27 7.83 54.5 5.15 2.55 PRN11 7.0 0.374 3.13 48.7 5.31 2.21 PRN13 7.0 0.405 -3.76 52.2 5.31 2.22 PRN14 7.0 0.315 -119. 49.2 5.00 2.40 PRN17 6.7 5.00 317. 50.8 5.31 2.26 PRN18 7.0 0.483 -73.7 47.5 5.00 2.37 PRN19 6.0 3.86 617. 43.0 4.19 2.36 PRN20 7.0 0.257 -87.8 48.6 5.30 2.44 PRN21 7.0 3.50 4.49 50.3 5.00 2.30 PRN22 5.6 59.2 -4.35 45.3 4.19 2.23 PRN23 7.0 6.26 17.4 49.9 5.15 2.29 PRN24 6.6 2.05 69.4 48.3 5.73 2.44 PRN25 7.0 1.97 16.0 47.5 5.31 2.47 PRN26 7.0 0.778 552. 49.5 5.00 2.30 PRN27 7.0 4.37 28.9 48.6 5.00 2.29 PRN28 7.0 0.992 -8.52 49.9 5.00 2.34 PRN29 7.0 0.875 624. 48.4 5.14 2.44 PRN30 7.0 1.46 -29.7 46.2 5.00 2.36 PRN31 7.0 4.21 56.2 49.0 5.15 2.15 _______________________ 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 01 7 29 01 7 30 01 7 31 01 8 1 01 8 2 01 8 3 01 8 4 prn 3d rss (cm) 1 777 582 623 469 415 417 384 2 180 282 299 173 221 184 174 3 333 228 294 493 459 235 180 4 558 318 329 524 366 441 400 5 228 245 248 282 322 332 427 6 729 549 746 500 682 593 669 7 409 532 406 497 498 568 396 8 214 300 230 270 284 251 237 9 258 324 218 306 349 238 308 10 261 334 347 351 474 333 456 11 280 301 328 312 268 283 261 13 195 264 201 197 208 265 252 14 214 199 223 251 280 265 255 17 255 262 373 398 349 181 789 18 635 480 528 297 683 260 230 19 257 398 244 344 320 355 20 250 211 264 291 265 336 367 21 555 343 792 536 565 545 893 22 235 1366 2587 1746 1711 1023 23 711 1042 474 632 535 909 598 24 201 409 884 947 348 508 686 25 211 251 217 272 385 438 400 26 293 348 315 388 322 278 274 27 346 311 316 404 434 357 367 28 299 380 372 339 278 324 282 29 235 523 431 219 357 468 235 30 247 213 196 259 220 249 271 31 451 474 330 268 304 432 352 _______________________ END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES global: algo alic areq artu auck bahr bili bjfs cas1 chat cic1 coco cro1 dav1 eisl fair fort gala goug guam harb hob2 hrao iisc irkt jama kely kerg kokb kour kunm lae1 mac1 mali mana mas1 maw1 mcm4 mets msku nico nklg noum nrc1 nril ntus nya1 nyal ohig onsa pert petp pimo pol2 ramo sant sele sey1 thti tidb tixi trab tskb urum usno usud whit wtzr yar1 yar2 yell zeck