CIRCULAR T 343 ISSN 1143-1393 2016 AUGUST 10, 07h UTC BUREAU INTERNATIONAL DES POIDS ET MESURES ORGANISATION INTERGOUVERNEMENTALE DE LA CONVENTION DU METRE PAVILLON DE BRETEUIL F-92312 SEVRES CEDEX TEL. +33 1 45 07 70 70 FAX. +33 1 45 34 20 21 tai@bipm.org The contents of the sections of BIPM Circular T are fully described in the document "Explanatory supplement to BIPM Circular T" available at ftp://ftp2.bipm.org/pub/tai/publication/notes/explanatory_supplement_v0.1.pdf 1 - Difference between UTC and its local realizations UTC(k) and corresponding uncertainties. From 2015 July 1, 0h UTC, to 2017 January 1, 0h UTC, TAI-UTC = 36 s. From 2017 January 1, 0h UTC, TAI-UTC = 37 s. Date 2016 0h UTC JUN 30 JUL 5 JUL 10 JUL 15 JUL 20 JUL 25 JUL 30 Uncertainty/ns Notes MJD 57569 57574 57579 57584 57589 57594 57599 uA uB u Laboratory k [UTC-UTC(k)]/ns AOS (Borowiec) -4.0 2.2 3.1 4.1 4.0 2.9 1.9 0.4 5.2 5.2 APL (Laurel) 2.7 3.5 4.5 1.6 1.7 1.9 2.2 0.3 10.9 10.9 AUS (Sydney) 522.5 534.7 560.8 579.4 596.3 614.5 640.0 0.3 6.0 6.0 BEV (Wien) 35.2 36.3 42.6 32.7 25.6 23.5 17.6 0.3 5.2 5.2 BIM (Sofiya) 4218.5 4225.1 4255.3 4276.5 4313.4 4350.0 4390.2 1.5 8.7 8.8 BIRM (Beijing) -21.5 -20.5 -25.5 - 162.9 121.2 79.2 1.5 20.1 20.1 BY (Minsk) 0.6 -2.9 -3.2 -3.4 -4.7 -4.8 -1.9 1.5 8.7 8.8 CAO (Cagliari) -13906.9 -14004.1 -14113.1 -14212.4 -14304.4 -14403.6 -14505.8 8.0 20.1 21.6 CH (Bern-Wabern) -1.1 0.0 2.0 3.7 6.4 9.3 8.3 0.3 1.7 1.8 CNES (Toulouse) 3.9 6.0 8.3 5.5 5.5 0.3 4.5 0.3 4.3 4.3 CNM (Queretaro) -4.0 -2.6 5.2 10.3 14.3 4.4 2.5 2.5 11.2 11.5 CNMP (Panama) 6.0 -14.5 0.2 5.3 13.0 -1.3 -16.7 0.5 7.1 7.2 DFNT (Tunis) 3656.1 3837.5 4026.8 4223.7 4418.0 4610.3 4785.1 0.7 20.1 20.1 DMDM (Belgrade) 9.3 8.1 2.3 21.5 19.5 14.6 -0.4 0.3 7.4 7.4 DTAG (Frankfurt/M) 160.0 157.1 154.9 157.1 153.0 142.8 139.2 0.3 7.7 7.7 EIM (Thessaloniki) 8.8 9.1 14.6 9.9 8.7 3.4 8.8 5.0 7.9 9.4 ESTC (Noordwijk) -3.2 -4.5 -4.1 -2.2 -0.2 -1.4 -2.4 0.3 5.6 5.6 HKO (Hong Kong) 296.8 302.4 308.5 322.0 335.5 354.1 365.8 0.3 7.4 7.4 IFAG (Wettzell) -946.7 -954.1 -942.6 -944.4 -943.5 -944.2 -952.2 0.3 5.6 5.6 IGNA (Buenos Aires) - - - - - - - IMBH (Sarajevo) -10.1 - - - - - - 0.3 7.2 7.3 INCP (Lima) - -28.4 94.1 -36.4 10.3 134.6 286.7 5.0 20.1 20.7 INPL (Jerusalem) 45.9 56.1 64.6 71.8 77.0 84.3 91.6 1.5 7.8 8.0 INTI (Buenos Aires) 9.9 25.0 27.6 27.9 17.9 6.8 4.2 2.5 20.0 20.2 INXE (Rio de Janeiro) -46.0 -31.3 -22.0 -26.2 -29.7 -26.6 -29.6 0.3 20.1 20.1 IT (Torino) 0.4 -0.9 -2.1 -2.5 -4.2 -3.9 -3.2 0.3 1.7 1.8 JATC (Lintong) 3.6 5.6 8.3 6.1 3.6 7.3 10.9 0.4 19.8 19.9 JV (Kjeller) -28.1 -27.2 -27.9 -32.1 -35.3 -37.1 -38.5 0.7 20.0 20.0 KEBS (Nairobi) -2615.9 -2911.4 -3187.1 -3483.3 -3748.8 -4031.7 -4317.1 1.5 20.1 20.1 KIM (Serpong-Tangerang) 1378.2 1384.1 1408.8 1429.2 1414.6 1425.4 1449.3 2.0 20.1 20.2 KRIS (Daejeon) 19.6 17.8 15.5 12.1 8.1 4.0 1.0 0.3 11.1 11.1 KZ (Astana) -223.9 -218.8 -207.3 -202.9 -197.3 -194.8 -191.9 1.5 8.7 8.8 LT (Vilnius) 1406.1 1421.5 1431.2 1434.0 1449.8 1429.0 1432.8 2.0 7.9 8.2 MASM (Bayanzurkh) - - - - - - - MBM (Podgorica) 4256.9 4575.3 - -405.0 -95.1 177.9 472.6 5.0 20.1 20.7 MIKE (Espoo) 9.5 14.2 13.4 12.9 13.8 13.8 13.8 0.7 4.2 4.3 MKEH (Budapest) -47536.9 -47736.7 -47933.4 -48147.8 -48361.8 -48583.3 -48794.2 1.5 20.1 20.1 MSL (Lower Hutt) - - - - - - - MTC (Makkah) 590.1 600.8 609.2 609.6 617.7 620.7 629.7 0.3 7.2 7.2 NAO (Mizusawa) 0.0 10.4 13.7 14.7 28.7 30.8 29.8 2.0 20.1 20.2 NICT (Tokyo) 6.9 5.9 4.8 6.4 6.9 6.2 5.6 0.3 2.4 2.4 NIM (Beijing) 0.4 0.1 -0.9 -2.3 -1.9 -1.8 -1.2 0.3 2.4 2.5 NIMB (Bucharest) 1389.7 1386.0 1382.2 1383.0 1358.5 1342.1 1340.7 4.5 7.9 9.1 NIMT (Pathumthani) 30.8 44.0 48.6 43.1 32.8 19.3 17.9 1.0 20.1 20.1 NIS (Cairo) -256.3 -357.8 -446.4 -532.2 -620.5 -710.4 -792.9 1.6 20.1 20.1 NIST (Boulder) 0.7 0.2 -0.3 -1.3 -2.0 -3.1 -4.1 0.3 2.0 2.0 NMIJ (Tsukuba) 1.4 5.1 6.9 8.0 9.5 9.3 8.2 0.3 2.4 2.5 NMLS (Sepang) -471.2 -473.0 -480.7 -489.2 -510.2 -516.0 -519.4 1.0 20.1 20.1 NPL (Teddington) -6.6 12.4 12.4 12.1 11.7 11.1 12.2 1.0 7.2 7.3 NPLI (New-Delhi) -8.6 -7.1 -5.4 -5.3 -4.5 -4.1 -3.8 0.3 19.9 19.9 NRC (Ottawa) 4.3 3.5 1.8 -2.5 -2.0 -4.9 -7.7 0.7 11.3 11.3 NRL (Washington DC) 4.6 3.6 1.4 0.8 3.0 2.6 -103.7 0.3 20.1 20.1 (1) NTSC (Lintong) 4.0 3.0 2.5 1.9 0.4 1.1 2.3 0.3 18.9 18.9 ONBA (Buenos Aires) -2127.2 -2131.4 -2147.9 -2152.1 -2148.5 -2150.0 -2154.2 2.5 11.3 11.6 ONRJ (Rio de Janeiro) -1.5 2.6 -1.8 -4.1 -2.7 0.8 1.4 1.0 7.4 7.5 OP (Paris) -2.3 -1.4 -0.3 0.0 0.6 1.6 1.4 0.3 1.7 1.8 ORB (Bruxelles) 0.7 0.5 0.7 1.5 0.1 -0.3 0.7 0.3 5.6 5.6 PL (Warszawa) -5.8 -17.1 -15.9 -9.8 7.6 17.1 21.7 0.3 3.4 3.5 PTB (Braunschweig) 0.9 0.8 0.7 0.4 0.7 0.8 1.1 0.1 1.4 1.4 ROA (San Fernando) -3.1 -3.3 -4.4 -4.5 -3.5 -3.6 -2.9 0.3 1.7 1.8 SASO (Riyadh) -336.2 -343.3 -345.2 -350.9 -355.2 -354.5 -355.1 0.7 7.4 7.5 SCL (Hong Kong) -58.7 -55.9 -49.4 -44.0 -42.2 -35.3 -26.9 6.0 14.2 15.4 SG (Singapore) -15.4 -9.3 -6.5 -1.2 3.2 7.8 13.5 0.7 5.9 6.0 SIQ (Ljubljana) -1547.4 -1545.8 -1547.3 -1563.6 -1562.5 -1582.6 -1587.7 0.3 7.2 7.3 SMD (Bruxelles) 7.4 10.6 8.4 9.0 12.1 16.0 15.9 0.3 7.4 7.4 SMU (Bratislava) -811.2 -817.5 -817.3 -820.8 -821.4 -831.7 -840.9 1.0 9.3 9.4 SP (Boras) -3.3 -3.2 -3.2 -3.3 -3.1 -3.0 -2.9 0.3 1.7 1.7 SU (Moskva) 2.5 3.6 4.7 4.6 5.1 5.9 5.9 0.9 6.6 6.6 TL (Chung-Li) 1.4 2.3 2.8 3.3 4.3 5.0 5.3 0.3 2.4 2.5 TP (Praha) -5.0 -11.2 -18.1 -17.5 -16.2 -16.3 -17.9 0.3 6.0 6.0 UA (Kharkov) 13.5 13.1 12.3 13.2 -2.3 -8.0 -11.5 1.5 8.2 8.3 UME (Gebze-Kocaeli) -7.3 -9.9 -15.6 -13.5 -23.6 -20.9 -28.0 1.5 7.7 7.9 USNO (Washington DC) -0.8 -0.3 0.2 0.2 0.7 0.5 0.6 0.2 1.5 1.6 VMI (Ha Noi) -13.4 -7.6 -9.0 -4.3 -15.4 -1.9 17.5 2.0 20.1 20.2 VSL (Delft) 0.3 -8.5 -12.7 -5.0 -0.4 -1.6 -0.9 0.3 1.7 1.8 ZA (Pretoria) -15.9 -15.6 -15.8 -12.5 -7.4 -3.1 0.8 0.3 20.0 20.0 - Note on section 1: (1) NRL : Time step of UTC(NRL) of 109.5 ns on MJD 57597.57. 2 - Difference between the normalized frequencies of EAL and TAI. Interval of validity f(EAL)-f(TAI) Steering correction 57569 - 57599 6.483x10**-13 (2016 JUN 30 - 2016 JUL 30) New correction 57599 - 57629 6.483x10**-13 (2016 JUL 30 - 2016 AUG 29) New correction foreseen 57629 - 57659 6.483x10**-13 (2016 AUG 29 - 2016 SEP 28) 3 - Duration of the TAI scale interval d. Table 1: Estimate of d by individual PSFS measurements and corresponding uncertainties. All values are expressed in 10**-15 and are valid only for the stated period of estimation. Standard Period of d uA uB ul/Lab ul/Tai u uSrep Ref(uS) Ref(uB) uB(Ref) Note Estimation PTB-CS1 57569 57599 -6.61 6.00 8.00 0.00 0.07 10.00 PFS/NA T148 8. (1) PTB-CS2 57569 57599 -6.03 3.00 12.00 0.00 0.07 12.37 PFS/NA T148 12. (1) SYRTE-FO2 57569 57599 -0.15 0.26 0.26 0.12 0.20 0.43 PFS/NA T301 0.23 (2) SYRTE-FORb 57569 57599 -0.36 0.24 0.28 0.11 0.20 0.43 0.7 [1] T328 0.34 (2) PTB-CSF1 57564 57599 -0.40 0.06 0.35 0.05 0.06 0.36 PFS/NA T162 1.40 (3) PTB-CSF2 57539 57569 -0.58 0.12 0.20 0.04 0.07 0.25 PFS/NA T287 0.41 (3) PTB-CSF2 57579 57599 -0.75 0.12 0.20 0.02 0.09 0.25 PFS/NA T287 0.41 (3) Notes: (1) Continuously operating as a clock participating to TAI (2) Report 31 JUL. 2016 by LNE-SYRTE (3) Report 04 AUG. 2016 by PTB [1] CIPM Recommendation 2 (CI-2015) : Updates to the list of standard frequencies in Proces-Verbaux des Seances du Comite International des Poids et Mesures, 104th meeting (2015), 2016, 47 p. Table 2: Estimate of d by the BIPM based on all PSFS measurements over the period MJD 57209-57599, and corresponding uncertainties. Period of estimation d u 57569-57599 -0.47x10**-15 0.21x10**-15 (2016 JUN 30 - 2016 JUL 30) 4 - Relations of UTC and TAI with predictions of UTC(k) disseminated by GNSS. [UTC-UTC(USNO)_GPS] = C0', [TAI-UTC(USNO)_GPS] = 36 s + C0' [UTC-UTC(SU)_GLONASS]= C1', [TAI-UTC(SU)_GLONASS]= 36 s + C1' For this edition of circular, S0'= 1.0 ns, S1'= 6.6 ns 2016 0h UTC MJD C0'/ns N0' C1'/ns N1' JUN 30 57569 -0.2 86 203.6 66 JUL 1 57570 2.6 90 198.9 70 JUL 2 57571 2.4 89 200.2 87 JUL 3 57572 2.4 89 201.0 83 JUL 4 57573 1.0 89 201.7 84 JUL 5 57574 1.4 90 204.7 87 JUL 6 57575 -2.6 89 206.0 89 JUL 7 57576 -2.8 89 205.3 86 JUL 8 57577 0.7 89 205.9 85 JUL 9 57578 0.9 90 206.8 88 JUL 10 57579 -0.1 88 204.9 84 JUL 11 57580 0.8 89 205.2 88 JUL 12 57581 2.1 89 206.0 79 JUL 13 57582 1.1 90 204.4 87 JUL 14 57583 -0.8 89 203.8 86 JUL 15 57584 -1.2 88 203.4 80 JUL 16 57585 -0.1 89 200.5 85 JUL 17 57586 1.3 90 196.6 89 JUL 18 57587 1.3 89 197.0 88 JUL 19 57588 1.7 89 200.5 88 JUL 20 57589 0.5 89 205.9 88 JUL 21 57590 -0.9 89 212.3 87 JUL 22 57591 1.5 84 217.1 79 JUL 23 57592 1.5 83 219.6 84 JUL 24 57593 1.5 89 220.1 86 JUL 25 57594 1.1 90 220.1 87 JUL 26 57595 1.0 89 217.5 89 JUL 27 57596 1.8 89 212.4 83 JUL 28 57597 3.3 89 208.2 86 JUL 29 57598 0.9 90 205.0 87 JUL 30 57599 0.7 71 202.8 88 5 - Time links used for the computation of TAI, calibrations information and corresponding uncertainties. Link Type Equipment Cal_ID1/Cal_ID2 uStb/ns uCal/ns uAg/ns Al/ns YYMM APL /PTB GPSPPP AP__ /PT02 NA_Al /1001-2014 0.3 11.2 10 24.3 1511 AUS /PTB GPSPPP AU01 /PT02 1002-2010/1001-2014 0.3 5.8 3 BIM /PTB GPS MC BM37 /PT05 2004-2008/1005-2008 1.5 8.6 5 BIRM/PTB GPS MC BI01 /PT05 NC_Al /1005-2008 1.5 20.0 -30.0 0709 BY /PTB GPS MC BY__ /PT05 NA_Al /1005-2008 1.5 8.6 5 53.0 0804 CAO /PTB GPS MC CA__ /PT05 NC /1005-2008 8.0 20.0 CNES/PTB GPSPPP CS22 /PT02 1101-2016/1001-2014 0.3 4.0 0 CNM /PTB GPS MC CN00 /PT05 NA_Al /1005-2008 2.5 11.2 10 -27.3 0804 CNMP/PTB GPSPPP MP1_ /PT02 2002-2015/1005-2008 0.5 7.0 0 DFNT/PTB GPS P3 DN__ /PT02 NC_Al /1001-2014 0.7 20.0 10.3 1507 DMDM/PTB GPSPPP ZM68 /PT02 NA /1001-2014 0.3 7.3 2 DTAG/PTB GPSPPP DT01 /PT02 NA /1001-2014 0.3 7.6 3 EIM /PTB GPS MC EI__ /PT05 1011-2007/1005-2008 5.0 7.8 6 ESTC/PTB GPSPPP ES04 /PT02 1012-2012/1001-2014 0.3 5.4 2 HKO /PTB GPSPPP HKO2 /PT02 NA_Al /1001-2014 0.3 7.3 2 11.6 1509 IFAG/PTB GPSPPP IF13 /PT02 1011-2011/1001-2014 0.3 5.4 2 IGNA/PTB NL IMBH/PTB GPSPPP BH01 /PT02 NA_Al /1001-2014 0.3 7.1 1 31.6 1505 INCP/PTB GPS MC CP__ /PT05 NC /1005-2008 5.0 20.0 INPL/PTB GPS P3 IL02 /PT02 NA_Al /1001-2014 1.5 7.7 3 -46.8 1212 INTI/PTB GPS MC IN__ /PT05 NC /1005-2008 2.5 20.0 INXE/PTB GPSPPP NXRA /PT02 NC /1001-2014 0.3 20.0 JV /PTB GPS P3 JV__ /PT02 NC_Al /1001-2014 0.7 20.0 130.0 1509 KEBS/PTB GPS MC KE__ /PT05 NC /1005-2008 1.5 20.0 KIM /PTB GPS MC KI02 /PT05 NC_Al /1005-2008 2.0 20.0 -30.6 0901 KRIS/PTB GPSPPP KR01 /PT02 1003-2005/1001-2014 0.3 11.2 10 KZ /PTB GPSGLN KZ01 /PT05 2002-2008/1005-2008 1.5 8.6 5 LT /PTB GPS MC LT01 /PT05 1007-2006/1005-2008 2.0 7.8 6 MASM/PTB NL MBM /PTB GPS MC ME__ /PT05 NC /1005-2008 5.0 20.0 MIKE/PTB GPS P3 MI04 /PT02 1102-2015/1001-2014 0.7 4.0 0 MKEH/PTB GPS MC MK01 /PT05 NC /1005-2008 1.5 20.0 MSL /PTB NL MTC /PTB GPSPPP MC02 /PT02 NA_Al /1001-2014 0.3 7.1 1 32.6 1503 NAO /PTB GPS MC NA__ /PT05 NC /1005-2008 2.0 20.0 NICT/PTB GPSPPP NC01 /PT02 1001-2014/1001-2014 0.3 2.0 1 NIM /PTB GPSPPP IM06 /PT02 1001-2014/1001-2014 0.3 2.0 1 NIMB/PTB GPS MC MB__ /PT05 1007-2006/1005-2008 4.5 7.8 6 NIMT/PTB GPS P3 MTTO /PT02 NC /1001-2014 1.0 20.0 NIS /PTB GPS P3 IS_1 /PT02 NC_Al /1001-2014 1.6 20.0 +16.4 1303 NMIJ/PTB GPSPPP NM0D /PT02 NA_Al /1001-2014 0.3 2.0 1 NMLS/PTB GPS P3 LSM1 /PT02 NC_Al /1001-2014 1.0 20.0 +3.3 1311 NPLI/PTB GPSPPP LITI /PT02 NC /1001-2014 0.3 20.0 NRC /PTB GPS P3 NR1C /PT02 1001-2003/1001-2014 0.7 11.2 10 NRL /PTB GPSPPP RL__ /PT02 NC /1001-2014 0.3 20.0 NTSC/PTB GPSPPP NTP1 /PT02 NC /1001-2014 0.3 20.0 10 ONBA/PTB GPS MC ON__ /PT05 1002-2004/1005-2008 2.5 11.2 10 ONRJ/PTB GPS P3 RJ01 /PT02 NA_Al /1001-2014 1.0 7.3 2 +5.6 1302 ORB /PTB GPSPPP OR1Z /PT02 1001-2012/1001-2014 0.3 5.4 2 PL /PTB GPSPPP PL_3 /PT02 1101-2013/1001-2014 0.3 3.2 2 SASO/PTB GPS P3 SA00 /PT02 NA_Al /1001-2014 0.7 7.3 2 32.8 1312 SCL /PTB GPS MC SC__ /PT05 1001-1993/1005-2008 6.0 14.1 10 SG /PTB GPS P3 SGBK /PT02 1001-2010/1001-2014 0.7 5.8 3 SIQ /PTB GPSPPP SI01 /PT02 2002-2014/1001-2014 0.3 7.1 1 SMD /PTB GPSPPP SD21 /PT02 2002-2011/1001-2014 0.3 7.3 2 SMU /PTB GPSGLN SM00 /PT05 2001-2006/1005-2008 1.0 9.2 6 SU /PTB GPSGLN SU19 /PT05 0281-2012/1005-2008 1.0 7.1 5 TL /PTB GPSPPP TLT1 /PT02 NA_Al /1001-2014 0.3 2.0 1 TP /PTB GPSPPP TP04 /PT02 1002-2009/1001-2014 0.3 5.8 3 UA /PTB GPS MC UA04 /PT05 2003-2011/1005-2008 1.5 8.1 4 UME /PTB GPS MC UM01 /PT05 NA /1005-2008 1.5 7.6 3 VMI /PTB GPS P3 VM__ /PT02 NC /1001-2014 2.0 20.0 ZA /PTB GPSPPP ZA__ /PT02 NC /1001-2014 0.3 20.0 Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM AOS /PTB TWGPPP AOS01 /PTB01 NA_Al 0.4 5.0 0 BEV /PTB GPSPPP BE1_ /PT02 NA_Al 0.3 5.0 4 -3.2 1203 CH /PTB TWGPPP CH01 /PTB01 0284-2012 0.3 1.0 0 IT /PTB TWGPPP IT02 /PTB01 0374-2014 0.3 1.0 0 JATC/NTSC INT LK INTDLY 0.2 6.1 6 NIST/PTB TWGPPP NIST01/PTB01 0393-2015 0.3 1.5 0 NPL /PTB TWSTFT NPL01 /PTB01 NA_Al 1.0 7.1 1 OP /PTB TWGPPP OP01 /PTB01 0377-2014 0.3 1.0 0 ROA /PTB TWGPPP ROA01 /PTB01 0380-2014 0.3 1.0 0 SP /PTB TWGPPP SP01 /PTB01 0381-2014 0.3 1.0 0 USNO/PTB TWGPPP USNO01/PTB01 0392-2015 0.3 1.0 0 VSL /PTB TWGPPP VSL01 /PTB01 0295-2015 0.3 1.0 0