***************************************************************************= *** dorisreport 16-Mar-2017 19:51:59 Message No 4268 ***************************************************************************= *** Author: "Lemoine, Frank G. (GSFC-61A0)" Subject: Delivery of GSC SINEX files, gscwd28 (October 2016 - December 2016) SUMMARY OF GSC DORIS SUBMISSION for October 2016 to December 2016 wd28 SINEX files March 10, 2017 This delivery consists of SINEX files in Normal equation (NEQ) format from the weeks of 2016-DOY276 to 2016-DOY360. N.B. We have updated the apriori station set to DPOD2008v15_cls. The series gscwd28 is now be our operational series. The relationship to our previous series (ITRF2014, Lemoine et al., 2016) is as follows: gscwd26: ITRF2014 series (Lemoine et al., 2016, Adv. Space Res.) gscwd27: gscwd26 + SARAL gscwd28: gscwd27 + changes to solar-array orientation modeling described below. The difference between the current wd28 series and the previous wd27 series is that for JASON-2, we now model the solar array motion using quaternions rather than relying on the attitude law and data file located at the IDS data centers for the Jason-2 spacecraft attitude changes. We have demonstrated at the IDS Workshop (2016, La Rochelle) and at the OSTST (2015, Reston) that the addition of this solar array modeling is beneficial. The previous generation of products always used the spacecraft quaternions for both the force model, and in the measurement model to correct the tracking-point to the center-of-mass of the spacecraft, and this continues to be the case with the wd28 series. For this quarterly delivery we are using DPOD2008V15_cls. The additional stations from DPOD2008v15_cls with respect to our prior processing are: JIWC PDOC SAPC KEVC MNAC 1. List of files submitted SINEX files in Normal equation format. All files have 7 X and 7 Y EOP weekly parameters. wd28 series ( Jason 2, Cryosat 2, Hy2a, Saral) NAME DATE No. of No. of Stations Coord parms Used Edited gsc16276wd28.snx 161002 144 48 3 gsc16283wd28.snx 161009 141 47 3 gsc16290wd28.snx 161016 144 48 3 gsc16297wd28.snx 161023 144 48 3 gsc16304wd28.snx 161030 138 46 3 gsc16311wd28.snx 161106 135 45 3 gsc16318wd28.snx 161113 132 44 4 gsc16325wd28.snx 161120 132 44 4 gsc16332wd28.snx 161127 132 44 4 gsc16339wd28.snx 161204 132 44 4 gsc16346wd28.snx 161211 132 44 4 gsc16353wd28.snx 161218 132 44 4 gsc16360wd28.snx 161225 132 44 4 2. POD summary of arcs used Satellite Orbit Modelling: 7 calendar arcs beginning on Sundays at 00:00:00 weekly gravity field (to 5x5 no c50) using c21 & s21 from IERS standards goco02s gravity field (6x6 to 180x180, plus c50) ITRF-2008/DPOD-2008 version 1.12 station coordinates GOT4.8 ocean tide model (20x20) with ocean loading Ocean pole tide MSIS atmospheric density model ECMWF 6hr atmospheric gravity (to 50x50) 10 deg elevation cutoff angle GMF (mapping function) w.Saastamoinen Troposphere Model and GPT for met da= ta. External quaternion attitude data for Jason-2 only UCL model for Envisat radiation pressure modelling Solve combined normal equations for: 6 state parameters Drag (cd/2-hr, Envisat, Cryosat2); (cd/8-hr, Jason2) Drags for ENV, CS2 using time correlation of 2hrs. Once per revolution radial and cross track accelerations Troposphere & Range-rate biases (pass-by-pass) X and Y EOP with 1 meter constraint X, Y, Z station positions with 1 meter constraint Jason-2 START STOP NoDOR DORRMS(mm/sec) CR 161016 0000 0.00 161023 0000 0.00 128340 0.40860 0.9450 161023 0000 0.00 161030 0000 0.00 127130 0.41800 0.9450 161030 0000 0.00 161103 0600 0.00 74945 0.41420 0.9450 161103 0800 0.00 161106 0000 0.00 46614 0.40320 0.9450 161106 0000 0.00 161113 0000 0.00 123965 0.39720 0.9450 161113 0000 0.00 161120 0000 0.00 123790 0.39980 0.9450 161120 0000 0.00 161127 0000 0.00 124228 0.39720 0.9450 161127 0000 0.00 161204 0000 0.00 126106 0.39640 0.9450 161204 0000 0.00 161211 0000 0.00 125194 0.39460 0.9450 161211 0000 0.00 161218 0000 0.00 125412 0.40520 0.9450 161218 0000 0.00 161225 0000 0.00 124764 0.41240 0.9450 161225 0000 0.00 170101 0000 0.00 125545 0.41240 0.9450 Cryosat-2 START STOP NoDOR DORRMS(mm/sec) CR 161002 0000 0.00 161009 0000 0.00 69248 0.41660 1.0000 161009 0000 0.00 161016 0000 0.00 66526 0.41020 1.0000 161016 0000 0.00 161020 0400 0.00 41852 0.40500 1.0000 161020 0600 0.00 161023 0000 0.00 27606 0.41280 1.0000 161023 0000 0.00 161030 0000 0.00 68921 0.41520 1.0000 161030 0000 0.00 161106 0000 0.00 67854 0.41080 1.0000 161106 0000 0.00 161113 0000 0.00 68044 0.40240 1.0000 161113 0000 0.00 161120 0000 0.00 68365 0.41060 1.0000 161120 0000 0.00 161127 0000 0.00 67007 0.40340 1.0000 161127 0000 0.00 161204 0000 0.00 68842 0.40640 1.0000 161204 0000 0.00 161211 0000 0.00 68549 0.40800 1.0000 161211 0000 0.00 161216 0400 0.00 50635 0.41200 1.0000 161216 0600 0.00 161218 0000 0.00 17141 0.41020 1.0000 161218 0000 0.00 161225 0000 0.00 67334 0.41680 1.0000 161225 0000 0.00 170101 0000 0.00 68924 0.41160 1.0000 Hy2a START STOP NoDOR DORRMS(mm/sec) CR 161002 0000 0.00 161009 0000 0.00 82741 0.42040 1.0000 161009 0000 0.00 161016 0000 0.00 82970 0.41140 1.0000 161016 0000 0.00 161023 0000 0.00 83459 0.41280 1.0000 161023 0000 0.00 161024 0000 0.00 11927 0.41480 1.0000 161023 0000 0.00 161030 0000 0.00 47316 0.42280 1.0000 161030 0000 0.00 161106 0000 0.00 79003 0.41580 1.0000 161106 0000 0.00 161109 0200 0.00 33903 0.40640 1.0000 161109 0400 0.00 161113 0000 0.00 43062 0.40600 1.0000 161113 0000 0.00 161120 0000 0.00 78414 0.41120 1.0000 161120 0000 0.00 161127 0000 0.00 79978 0.40520 1.0000 161127 0000 0.00 161204 0000 0.00 82301 0.41240 1.0000 161204 0000 0.00 161211 0000 0.00 82721 0.41100 1.0000 161211 0000 0.00 161218 0000 0.00 82959 0.41640 1.0000 161218 0000 0.00 161225 0000 0.00 82549 0.41880 1.0000 161225 0000 0.00 170101 0000 0.00 83086 0.41320 1.0000 Saral START STOP NoDOR DORRMS(mm/sec) CR 161002 0000 0.00 161009 0000 0.00 77586 0.42160 1.0000 161009 0000 0.00 161016 0000 0.00 76922 0.41460 1.0000 161016 0000 0.00 161023 0000 0.00 77512 0.41220 1.0000 161023 0000 0.00 161030 0000 0.00 77907 0.42120 1.0000 161030 0000 0.00 161106 0000 0.00 71495 0.41340 1.0000 161106 0000 0.00 161113 0000 0.00 72518 0.40660 1.0000 161113 0000 0.00 161120 0000 0.00 75111 0.41280 1.0000 161120 0000 0.00 161127 0000 0.00 75789 0.40760 1.0000 161127 0000 0.00 161204 0000 0.00 76053 0.41280 1.0000 161204 0000 0.00 161211 0000 0.00 75887 0.41140 1.0000 161211 0000 0.00 161218 0000 0.00 75618 0.41360 1.0000 161218 0000 0.00 161225 0000 0.00 75364 0.42140 1.0000 161225 0000 0.00 170101 0000 0.00 75737 0.41380 1.0000 RMS of orbit differences: Doris only arc vs SLR/Doris arc (cm) These differences are from wd25 and are included for information purposes only as there are no wd28 SLR/Doris arc. The orbit differences are only for arcs that have data from the additional stations radial cross along j2161016 0.33677 2.71654 1.38746 j2161023 0.37746 2.49659 1.79231 j2161030 0.29998 2.27559 2.40930 j2161106 0.28274 3.00781 2.23255 j2161113 0.32719 2.18173 1.51030 j2161120 0.31832 2.71029 2.54692 j2161127 0.29867 2.09123 1.90053 j2161204 0.35247 2.54629 1.73018 j2161211 0.41289 1.75256 1.96563 j2161218 0.49900 2.91723 2.05350 j2161225 0.61839 2.85864 2.03636 c2161002 0.35561 1.52918 7.41707 c2161009 0.47171 1.87547 6.83035 c2161016 0.28809 0.94941 6.51136 c2161023 0.27998 1.29146 5.94023 c2161030 0.27350 1.18419 5.72720 c2161106 0.22636 1.18747 7.37880 c2161113 0.12046 1.79834 8.32558 c2161120 0.30136 1.48936 6.84581 c2161127 0.28683 1.44835 7.24938 c2161204 0.27065 1.21506 7.51475 c2161211 0.17997 1.21368 7.95998 c2161218 0.22907 1.46000 8.47214 c2161225 0.22741 1.16585 9.46671 hy161002 0.47421 1.39670 1.35847 hy161009 0.21187 1.44722 1.55469 hy161016 0.39645 1.25701 1.39355 hy161023 0.34568 2.20789 1.07043 hy161030 0.31516 1.37732 1.72465 hy161106 0.38350 0.74966 1.46992 hy161113 0.30670 1.78985 1.12487 hy161120 0.12888 1.25569 0.65064 hy161127 0.22153 2.17616 1.45348 hy161204 0.28638 0.90588 1.93317 hy161211 0.13003 1.33526 0.87143 hy161218 0.19452 2.44543 0.98960 hy161225 0.20652 1.49516 0.88193 sa161002 0.41666 1.27072 1.78514 sa161009 0.43718 1.13481 1.22542 sa161016 0.30181 1.04748 1.25303 sa161023 0.31123 1.20915 1.38842 sa161030 0.37274 1.63674 1.82267 sa161106 0.48055 1.63220 1.47155 sa161113 0.20144 1.69417 1.11444 sa161120 0.22287 1.35018 0.82003 sa161127 0.21908 1.99273 1.23186 sa161204 0.22879 1.01981 0.89099 sa161211 0.11932 1.19708 0.79104 sa161218 0.41173 1.77220 2.38819 sa161225 0.26783 1.75546 1.72866 3. Contact information for questions Frank Lemoine, GSFC/NASA Greenbelt, MD USA frank.g.lemoine@nasa.gov Douglas Chinn, SGT Inc., Greenbelt MD USA douglas.s.chinn@nasa.gov References: Lemoine, F.G., D.S. Chinn, N.P. Zelensky, J.W. Beall, K. Le Bail, "The Development of the GSFC DORIS Contribution to ITRF2014", Adv. Space Res., (2016, In press), doi:10.1016/j.asr.2015.12.043. Zelensky, N.P., F.G. Lemoine, D.S. Chinn, et al., "Towards the 1-cm SARAL orbit?", Adv. Space Res., (2016, in press), doi:10.1016/j.asr.2015.12.011. 4. Internal comparison: Inversion of weekly combined normal equation and comparison with reference (ITRF2008). Stations used in comparisons (when available) ADEA ADEB ADFB ADGB AJAB AMSA AMTB AMUB AMVB AREA AREB ARFB ARLA ARMA ASDB ASEB BADA BADB BELB BEMB BETB CACB CADB CHAB CIBB CICB CIDB COBB COLA CROB CRPB CRQB DAKA DIOA DIOB DJIA DJIB EASA EASB EVEB FAIA FAIB FLOA FUTB GALA GAVB GOLA GOMA GOMB GR3B GREB GRFB GUAB HBKA HBKB HBLA HBMB HELA HELB HEMB HUAA HVOA IQUB JIUB KERA KERB KESB KETB KITA KITB KIUB KOKA KOLB KRAB KRBB KRUB KRWB LIBA LIBB LICB LIFB MAHB MALB MANA MANB MARA MARB MATB META MEUB MIAB MONB MOOB MORA MORB MSOB MSPB NOUA NOUB NOWB NOXB ORRA ORRB OTTA OTTB PAPB PAQB PASB PATB PAUB PDLB PDMB PURA RAQB REUA REUB REYA REYB RIDA RIKB RILB RIMB RIOA RIOB RIPB RIQB RIRB ROTA ROTB ROUB ROVB SAKA SAKB SALB SAMB SANA SANB SAOB SRCB SODA SODB SPIA SPIB STJB SYOB SYPB TANB THUB TLHA TLSA TLSB TRIA TRIB WALA YARA YARB YASB YELA YELB YEMB Stations added to the above list FUUB JIVB MAIB MOSB New stations which started tracking on or after Sep 2015. TRJB LAOB STKB GR4B SOEB SYQB MAUB PDNC OWEC ROWC ROWC ADHC KEUC GONC WRMS, TX, TY, TZ, Scale in mm (with respect to the above reference station = set) (Note: Stations with less than 300 points are never used. Other stations are edited if they cause a high adjustment.) Jason-2, Cryosat-2, Hy2a, Saral wd28 solution Year Mon Day DOY No.of STA WRMS TX TY TZ S= cale 2016 10 02 279 44 14.61 -0.44 -24.13 -18.91 1= 7.03 2016 10 09 286 43 16.05 -1.12 -19.02 -16.66 1= 4.25 2016 10 16 293 44 14.76 2.38 -19.34 -12.97 1= 6.50 2016 10 23 300 44 14.46 2.14 -18.27 -12.78 1= 4.30 2016 10 30 307 42 13.89 0.88 -18.52 23.96 1= 5.22 2016 11 06 311 41 13.80 3.29 -22.98 19.81 1= 4.95 2016 11 13 318 40 12.78 4.37 -21.26 -20.80 1= 3.12 2016 11 20 325 40 13.35 4.86 -27.16 -25.82 1= 7.60 2016 11 27 332 40 15.22 0.41 -22.39 -26.77 1= 7.13 2016 12 04 339 40 12.85 -0.44 -23.41 -29.97 1= 5.74 2016 12 11 346 40 13.69 -0.97 -22.53 -26.93 1= 6.77 2016 12 18 353 40 13.43 2.89 -21.76 -24.76 1= 7.02 2016 12 25 360 40 13.76 2.11 -18.99 -28.57 1= 4.48 Cliquez sur l'url suivante=20 https://www.mailcontrol.com/sr/6GAyThdidYHGX2PQPOmvUu4DI0fUfdodNkhp+Uxil1hN= AlsoSIWCvnkAilNWyw6yWUg4oFtYCrin9BVBzDB66w=3D=3D=20=20 si ce message est ind=E9sirable (pourriel). 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