Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Report of the Monthly TW Results Read this file by H55 by Z. Jiang and W. Lewandowski.

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Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Report of the Monthly TW Results Read this file by H55 by Z. Jiang and W. Lewandowski

16 Nov. 2004, TAI Section Forum Basic Considerations Appears every month on the BIPM TW Site Non official, aiming at information exchanges Calculated and edited by Tsoft, viewed but not obliged, by the physicists on duty The result reports are arranged in the sub-directory under the main directory …\TwRep \Mail : Selection of TW comunications \TwLetter : Irregular circular letter edited by BIPM \TwForum : Contributions of TW men … Reference: X:\TaN\TwRep\ReagMe_TwRep.doc

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Main Directory: … \TwRep

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Sub-Directory: \YYMM

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Sub-Directory \YYMM\TW-GPS

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Sub-Directory \YYMM\TW-GPS-MJD

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Sub-Directory \YYMM\Closure

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Sub-Directory \YYMM\PLT

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Status of TW0410 (S=1, TwObsS1.Plt ) F307: --- Status of Total Existing TW observations for TaN0410 at 17:47:26/11/15/04 (S=1) No Lab1 Lab / / / / / / / NICT AUS 26 ______ 3 _________ 3___ ___ 3_________ 1______ 3___ ______ 2______ 3_________ 3 ______ 3______ ___ 2 2 NICT NMIJ 23 ______ 3 _________ 3___ ___ 2_________ 1______ 2___ ______ 2______ 3_________ 2 ______ 3______ ___ 2 3 NICT NTSC 11 ______ 3 _________ 3___ ___ 2_________ 3____________ _______________ _______________ _______________ ______ 4 NICT TL 23 ______ 1 _________ 3___ ___ 2_________ 3______ 3___ ______ 2______ 3____________ ______ 3______ ___ 3 5 IEN PTB ______ ______ IEN NIST ______ NIST NPL ___ 8 NIST VSL ___ 9 NIST PTB ______ ___ 10 NIST IEN ______ ___ 11 NPL VSL ______ NPL PTB ______ ______ NPL USNO NPL NIST PTB IEN ______ ______ ___ 16 PTB ROA ______ ___ 17 PTB NPL ______ ___ 18 PTB VSL ______ ___ 19 PTB USNO ______ ___ 20 PTB NIST ______ ___ 21 ROA PTB ______ USNO OP USNO NPL USNO VSL USNO SP USNO PTB ______ VSL SP VSL OP VSL NPL VSL PTB ______ VSL USNO VSL NIST Total TW links: 32

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Comparison: TW-GPS Closing Net 0410 TW GPS

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Alignment of TW to GPS AV -- X:\TaN\TwRep\0410\Algn0410.Z IENPTB.lkT ! by IENPTB.TM NISTPTB.lkT ! by NISTPTB.TM3 5.6 NPLPTB.lkT ! by NPLPTB.TM OPPTB.lkT ! by OPPTB.TM ROAPTB.lkT ! by ROAPTB.TM USNOPTB.lkT ! by USNOPTB.TM3 7.3 VSLPTB.lkT ! by VSLPTB.TM NISTIEN.lkT ! by NISTIEN.TM NPLIEN.lkT ! by NPLIEN.TM OPIEN.lkT ! by OPIEN.TM ROAIEN.lkT ! by ROAIEN.TM USNOIEN.lkT ! by USNOIEN.TM VSLIEN.lkT ! by VSLIEN.TM NPLNIST.lkT ! by NPLNIST.TM OPNIST.lkT ! by OPNIST.TS ROANIST.lkT ! by ROANIST.TS VSLNIST.lkT ! by VSLNIST.TM OPNPL.lkT ! by OPNPL.TM ROANPL.lkT ! by ROANPL.TM3 9.2 USNONPL.lkT ! by USNONPL.TM VSLNPL.lkT ! by VSLNPL.TM ROAOP.lkT ! by ROAOP.TS USNOOP.lkT ! by USNOOP.TM VSLOP.lkT ! by VSLOP.TM USNOROA.lkT ! by USNOROA.TM VSLROA.lkT ! by VSLROA.TM VSLUSNO.lkT ! by VSLUSNO.TM3 1.0 AUSNICT.lkT ! by AUSNICT.TM NMIJNICT.lkT ! by NMIJNICT.TM NTSCNICT.lkT ! by NTSCNICT.TM TLNICT.lkT ! by TLNICT.TM3 END --- Align Link2 to Link1 by F31643/Z3

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Comparison: TW-GPS, AUS-NICT.TM3 ! Data Set: TaN0410. Comparison: Lk1. T/AUSNICT - Lk2. M/AUS_NIC_ ! Mjd Link1 Link2 dLink Jump1 Jump2 dLink_ … ! dLink Statistic: N,Min,Max,Mean,MSR,SD=

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Comparison: TW-GPS, AUS-NICT.TM5 (Mjd) ! 0409 Mjd Link1 Link2 dLink Jump1 Jump2 dLink_ X:\TaN\0409\Dlk\AUSNICT.TM ! 0410 Mjd Link1 Link2 dLink Jump1 Jump2 dLink_ X:\TaN\0410\Dlk\AUSNICT.TM ! Combined dLink Statis. AUSNICT.TM5 : N,Min,Max,Mean,MSR,SD= Mod. Allan Variation, ModSIGMAy(Tau) 2**i m j Day Tau ModAllan TimeVar Log_Tau Log_ModAllan Log_TimeVar E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E+01

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Closures: TW (S=1 or S<>1) Triangle/Stat./Mjd: Min Max RMS Mean StdD T PTB IEN NIST : / T PTB IEN NPL : / T PTB IEN OP : / T PTB IEN ROA : / T PTB IEN USNO : / T PTB IEN VSL : / T PTB NIST NPL : / T PTB NIST OP : / T PTB NIST ROA : / T PTB NIST USNO :**************************** 0.7/ T PTB NIST VSL : / T PTB NPL OP : / T PTB NPL ROA : / T PTB NPL USNO : / T PTB NPL VSL : / T PTB OP ROA : / T PTB OP USNO : / T PTB OP VSL : / T PTB ROA USNO :************** ******* 0.3/ T PTB ROA VSL :************** ******* 0.9/ T PTB USNO VSL : / T IEN NIST NPL : / T IEN NIST OP : / T IEN NIST ROA : / T IEN NIST USNO :**************************** 1.1/ T IEN NIST VSL : / T NIST NPL OP : / T NIST NPL ROA : / T NIST NPL USNO :**************************** 0.7/ T NIST NPL VSL : / T NPL OP ROA : / T NPL OP USNO : / T NPL OP VSL : / T OP ROA USNO :******* ******* 0.9/ T OP ROA VSL :******* ******* 0.9/ T ROA USNO VSL : /

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Closures: TW aligned to GPS AV Triangle/Stat./Mjd: Min Max RMS Mean StdD T PTB IEN NIST : / T PTB IEN NPL : / T PTB IEN OP : / T PTB IEN ROA : / T PTB IEN USNO : / T PTB IEN VSL : / T PTB NIST NPL : / T PTB NIST OP : / T PTB NIST ROA : / T PTB NIST USNO :**************************** 0.7/ T PTB NIST VSL : / T PTB NPL OP : / T PTB NPL ROA : / T PTB NPL USNO : / T PTB NPL VSL : / T PTB OP ROA : / T PTB OP USNO : / T PTB OP VSL : / T PTB ROA USNO : / T PTB ROA VSL : / T PTB USNO VSL : / T IEN NIST NPL : / T IEN NIST OP : / T IEN NIST ROA : / T IEN NIST USNO :**************************** 1.1/ T IEN NIST VSL : / T NIST NPL OP : / T NIST NPL ROA : / T NIST NPL USNO :**************************** 0.7/ T NIST NPL VSL : / T NPL OP ROA : / T NPL OP USNO : / T NPL OP VSL : / T OP ROA USNO : / T OP ROA VSL : / T ROA USNO VSL : /

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Comparison: TW-GPS Plot

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum Where from the Closures ? Constant: Calibration (all the delays) Alignment to GPS CV Variable: Tsoft error Local labo’s errors: calibration, Sagniac, atmosphere effects Interpolations: linear, high order Temperature of receivers, cables, antennas: in-outside, atmosphere TW-satellite non stationary, Double satellites (TL-USNO) Frequencies of the two carriers Residuals of the Iono, Tropo etc. Re- Calibration, Re-Alignment to GPS

Z. Jiang and W. Lewandowski 16 Nov. 2004, TAI Section Forum The related Tsoft Menus - fully automatic - Z0 : TW-GPS on standard MJD Z3 : Monthly TW-GPS on the TW observation epochs Z5 : Combination of monthly TW-GPS M2 : Alignment of TW by GPS F2 : Link closures FS : Save the results to the BIPM TW Web Site Demo Site on Tsoft X:\TaN\TwRep\ …