| CIRCULAR T 349 | ISSN 1143-1393
|
| 2017 FEBRUARY 10, 09h 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 https://webtai.bipm.org/ftp/pub/tai/other-products/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, TAI-UTC = 36 s. From 2017 January 1, 0h UTC, TAI-UTC = 37 s.
1 - Difference between UTC and its local realizations UTC(k) and corresponding uncertainties.
From 2015 July 1, 0h UTC, TAI-UTC = 36 s. From 2017 January 1, 0h UTC, TAI-UTC = 37 s.
| Date 2016/17 0h UTC | DEC 27 | JAN 1 | JAN 6 | JAN 11 | JAN 16 | JAN 21 | JAN 26 | JAN 31 | Uncertainty/ns | Notes | |||||
| MJD | 57749 | 57754 | 57759 | 57764 | 57769 | 57774 | 57779 | 57784 | uA | uB | u | ||||
| Laboratory k | [UTC-UTC(k)]/ns | ||||||||||||||
| AOS | (Borowiec) | 
| 
| -3.9 | -4.6 | -4.7 | -4.9 | -4.0 | -2.9 | -1.0 | 0.1 | 0.4 | 2.7 | 2.7 | |
| APL | (Laurel) |
|
| 2.8 | 2.9 | 3.8 | 4.1 | 1.2 | 0.8 | 0.5 | 0.5 | 0.3 | 10.9 | 10.9 | |
| AUS | (Sydney) |
|
| 842.5 | 832.6 | 818.2 | 819.2 | 812.3 | 792.3 | 781.5 | 773.1 | 0.4 | 5.9 | 5.9 | |
| BEV | (Wien) |
|
| 64.1 | 59.1 | 58.9 | 54.8 | 46.8 | 36.8 | 29.5 | 25.8 | 0.4 | 2.7 | 2.7 | |
| BIM | (Sofiya) |
|
| - | - | - | - | 5315.1 | 5352.1 | 5400.2 | 5436.3 | 1.5 | 9.2 | 9.4 | |
| BIRM | (Beijing) |
|
| -16.4 | -15.8 | -15.8 | -5.8 | -5.5 | -6.1 | -5.8 | -5.5 | 0.4 | 20.0 | 20.0 | (1) |
| BY | (Minsk) |
|
| -3.9 | -5.2 | -8.1 | -4.0 | -2.7 | - | -0.8 | -2.2 | 1.5 | 9.2 | 9.4 | |
| CAO | (Cagliari) |
|
| -17599.8 | -17706.6 | -17819.8 | -17928.2 | -18029.4 | -18131.1 | -18234.1 | -18341.3 | 8.0 | 20.0 | 21.6 | |
| CH | (Bern-Wabern) |
|
| 5.5 | 6.5 | 7.9 | 10.2 | 9.0 | 5.7 | 3.0 | 2.3 | 0.4 | 1.7 | 1.7 | |
| CNES | (Toulouse) |
|
| -0.1 | 1.1 | 0.4 | 1.4 | 3.7 | 0.0 | -3.3 | -5.1 | 0.4 | 4.1 | 4.1 | |
| CNM | (Queretaro) |
|
| -2.7 | -0.1 | 0.5 | 2.1 | 3.2 | 4.4 | -1.7 | -7.5 | 2.5 | 11.2 | 11.5 | |
| CNMP | (Panama) |
|
| - | -33.0 | -42.0 | -46.9 | -42.3 | -25.0 | -16.4 | -16.2 | 0.5 | 7.1 | 7.1 | |
| DFNT | (Tunis) |
|
| 10592.2 | - | 10969.6 | 11163.2 | 11360.6 | 11529.2 | 11722.1 | 11931.7 | 0.7 | 20.0 | 20.0 | |
| DLR | (Oberpfaffenhofen) |
|
| 4.8 | 6.4 | -4.6 | 2.3 | 3.4 | 8.6 | 13.0 | 11.0 | 0.7 | 2.7 | 2.8 | |
| DMDM | (Belgrade) |
|
| 14.9 | 38.0 | 90.6 | 137.0 | 178.8 | 13.9 | 18.0 | 5.0 | 0.4 | 7.4 | 7.4 | (2) |
| DTAG | (Frankfurt/M) |
|
| 198.0 | 185.9 | 180.3 | 171.7 | 165.3 | 158.0 | 157.4 | 144.2 | 0.4 | 7.6 | 7.6 | |
| EIM | (Thessaloniki) |
|
| 8.7 | 2.7 | - | - | - | 7.4 | 10.0 | 7.0 | 2.5 | 7.9 | 8.2 | |
| ESTC | (Noordwijk) |
|
| -3.5 | -5.4 | -6.3 | -7.5 | -6.0 | -4.0 | -1.4 | -1.2 | 0.4 | 5.5 | 5.5 | |
| HKO | (Hong Kong) |
|
| 672.0 | 668.1 | 678.5 | 695.9 | 702.9 | 713.8 | 720.9 | 733.8 | 0.4 | 7.3 | 7.4 | |
| IFAG | (Wettzell) |
|
| -946.8 | -947.5 | -941.2 | -944.1 | -950.1 | -944.0 | -951.5 | -946.6 | 0.4 | 5.4 | 5.4 | |
| IGNA | (Buenos Aires) |
|
| - | - | - | - | - | - | - | - | ||||
| IMBH | (Sarajevo) |
|
| 102.0 | 141.1 | 133.6 | 98.4 | 68.5 | 32.4 | 17.4 | 22.0 | 0.4 | 7.1 | 7.1 | |
| INCP | (Lima) |
|
| 157.8 | 189.9 | 211.5 | 225.0 | 206.7 | 255.9 | 321.5 | 340.1 | 5.0 | 20.0 | 20.6 | |
| INPL | (Jerusalem) |
|
| - | 235.8 | 244.0 | 246.0 | 250.9 | 258.7 | 266.5 | 277.2 | 0.4 | 7.1 | 7.1 | |
| INTI | (Buenos Aires) |
|
| 111.3 | 104.5 | 98.7 | 96.3 | 80.0 | 90.7 | 83.5 | 118.0 | 2.5 | 20.0 | 20.2 | (3) |
| INXE | (Rio de Janeiro) |
|
| -54.7 | -27.7 | -9.8 | -8.2 | -7.0 | -18.5 | -23.4 | -34.4 | 0.4 | 20.0 | 20.0 | |
| IT | (Torino) |
|
| -2.0 | -3.7 | -5.5 | -6.2 | -8.3 | -8.1 | -8.2 | -5.3 | 0.5 | 1.3 | 1.4 | |
| JATC | (Lintong) |
|
| 7.0 | 6.3 | 7.3 | 6.1 | 5.3 | 1.9 | 4.0 | 3.8 | 0.6 | 2.0 | 2.1 | |
| JV | (Kjeller) |
|
| -55.1 | -47.0 | -37.8 | -30.8 | -18.4 | -13.2 | -8.4 | -4.0 | 0.7 | 20.0 | 20.0 | |
| KEBS | (Nairobi) |
|
| - | - | - | - | - | - | - | - | ||||
| KIM | (Serpong-Tangerang) |
|
| 167.0 | 174.6 | 215.4 | 227.2 | 239.0 | 277.6 | 307.9 | 315.3 | 2.0 | 20.0 | 20.1 | |
| KRIS | (Daejeon) |
|
| 19.0 | 14.5 | 8.5 | 4.4 | 0.5 | -3.1 | -5.9 | -8.2 | 0.4 | 11.1 | 11.1 | |
| KZ | (Astana) |
|
| 100.5 | 97.5 | 100.1 | 94.8 | 100.9 | 95.4 | 98.5 | 96.3 | 1.5 | 9.2 | 9.3 | |
| LT | (Vilnius) |
|
| 1631.5 | 1649.0 | 1669.8 | 1684.8 | -14.5 | -8.9 | -4.3 | -3.5 | 2.0 | 11.2 | 11.4 | (4) |
| MASM | (Bayanzurkh) |
|
| -241.9 | -16.6 | -38.0 | -60.3 | -83.4 | -99.0 | -19.7 | -44.7 | 1.5 | 20.0 | 20.1 | (5) |
| MBM | (Podgorica) |
|
| - | - | - | - | - | - | - | - | ||||
| MIKE | (Espoo) |
|
| -6.3 | -7.8 | -9.0 | -11.0 | -10.9 | -10.9 | -11.1 | -11.2 | 0.7 | 4.1 | 4.1 | |
| MKEH | (Budapest) |
|
| -55040.6 | -55228.7 | -55419.5 | -55627.7 | -55840.2 | -56054.5 | -56248.1 | -56457.1 | 1.5 | 20.0 | 20.1 | |
| MSL | (Lower Hutt) |
|
| -78.4 | -94.2 | -89.0 | -82.0 | -80.4 | -86.9 | -78.4 | -51.2 | 1.5 | 20.0 | 20.1 | |
| MTC | (Makkah) |
|
| 849.5 | 847.7 | 854.9 | 864.7 | 863.1 | 872.8 | 880.6 | 879.0 | 0.4 | 7.3 | 7.4 | |
| NAO | (Mizusawa) |
|
| 60.5 | 64.8 | 61.2 | 70.7 | 72.4 | 65.5 | 58.1 | 70.1 | 2.0 | 20.0 | 20.1 | |
| NICT | (Tokyo) |
|
| 9.9 | 11.9 | 11.3 | 9.8 | 10.1 | 10.5 | 12.6 | 11.4 | 0.3 | 2.1 | 2.1 | |
| NIM | (Beijing) |
|
| -3.1 | -3.8 | -4.3 | -4.8 | -5.1 | -4.5 | -4.3 | -4.0 | 0.3 | 1.7 | 1.8 | |
| NIMB | (Bucharest) |
|
| 1466.7 | 1466.5 | 1476.2 | 1519.3 | 1509.8 | 1515.9 | 1526.3 | 1534.5 | 0.4 | 7.2 | 7.2 | |
| NIMT | (Pathumthani) |
|
| 142.9 | 145.5 | 151.7 | 155.8 | 157.2 | 164.8 | 178.9 | 180.3 | 1.0 | 20.0 | 20.0 | |
| NIS | (Cairo) |
|
| 1736.1 | 1818.7 | 1894.4 | 1972.0 | 2063.6 | 2139.6 | 2222.9 | 2347.9 | 1.6 | 20.0 | 20.1 | |
| NIST | (Boulder) |
|
| -1.2 | -1.2 | -1.4 | -1.3 | -1.2 | -0.9 | -0.6 | -0.4 | 0.3 | 1.7 | 1.7 | |
| NMIJ | (Tsukuba) |
|
| 4.4 | 4.2 | 3.8 | 3.0 | 3.2 | 3.3 | 4.0 | 4.6 | 0.3 | 2.2 | 2.2 | |
| NMLS | (Sepang) |
|
| -598.7 | -593.1 | -584.5 | -574.9 | -563.5 | - | -529.8 | -513.8 | 1.0 | 20.0 | 20.0 | |
| NPL | (Teddington) |
|
| 6.5 | 5.1 | 3.3 | -0.1 | -0.4 | 0.5 | 0.6 | 0.9 | 1.0 | 7.1 | 7.2 | |
| NPLI | (New-Delhi) |
|
| 7.3 | 7.6 | 8.3 | 10.1 | 11.1 | 11.4 | 15.5 | 20.7 | 0.4 | 20.0 | 20.0 | |
| NRC | (Ottawa) |
|
| 84.1 | 82.4 | 88.6 | 89.5 | 84.9 | 72.7 | 68.4 | 73.2 | 0.7 | 11.2 | 11.2 | |
| NRL | (Washington DC) |
|
| -23.6 | -21.2 | -20.1 | -20.2 | -16.0 | -11.8 | -5.7 | -0.2 | 0.4 | 20.0 | 20.0 | |
| NTSC | (Lintong) |
|
| 0.8 | -0.1 | 0.7 | -0.9 | -0.7 | -2.5 | 1.1 | 0.7 | 0.5 | 1.7 | 1.8 | |
| ONBA | (Buenos Aires) |
|
| -2244.9 | -2256.4 | -2238.7 | -2242.4 | -2249.5 | -2248.2 | -2242.0 | -2250.1 | 2.5 | 11.2 | 11.5 | |
| ONRJ | (Rio de Janeiro) |
|
| 0.3 | 1.7 | 2.7 | -1.0 | -1.0 | -0.3 | 1.2 | 1.8 | 1.0 | 7.3 | 7.4 | |
| OP | (Paris) |
|
| -1.5 | -1.9 | -2.6 | -2.8 | -2.2 | -1.5 | -0.7 | 0.1 | 0.3 | 1.3 | 1.4 | |
| ORB | (Bruxelles) |
|
| -0.2 | -2.0 | -0.6 | 0.8 | 1.4 | 2.4 | 3.0 | 4.5 | 0.4 | 5.5 | 5.5 | |
| PL | (Warszawa) |
|
| 17.9 | 17.4 | 11.7 | 8.5 | -4.6 | -9.1 | -20.3 | -15.8 | 0.4 | 3.3 | 3.3 | |
| PTB | (Braunschweig) |
|
| 1.1 | 0.8 | 0.3 | 0.2 | 0.4 | 0.5 | 1.1 | 1.3 | 0.2 | 0.9 | 1.0 | |
| ROA | (San Fernando) |
|
| -4.9 | -7.7 | -7.3 | -4.0 | -2.6 | -1.1 | -0.4 | -0.7 | 0.4 | 1.4 | 1.4 | |
| SASO | (Riyadh) |
|
| -421.6 | -417.8 | -412.5 | -407.9 | -402.6 | -400.6 | -405.1 | -410.4 | 0.7 | 7.3 | 7.4 | |
| SCL | (Hong Kong) |
|
| -35.2 | -36.8 | -42.3 | -49.6 | -57.6 | -54.8 | -52.3 | -59.8 | 6.0 | 14.1 | 15.3 | |
| SG | (Singapore) |
|
| 1.6 | -0.9 | -3.9 | -6.9 | -8.3 | -12.4 | -10.9 | -13.1 | 0.7 | 5.8 | 5.9 | |
| SIQ | (Ljubljana) |
|
| -1715.0 | -1708.7 | -1703.4 | -1702.0 | -1694.1 | -1703.6 | 33.8 | 33.2 | 0.4 | 7.2 | 7.2 | (6) |
| SMD | (Bruxelles) |
|
| -1.6 | -3.7 | -1.8 | -1.0 | -1.6 | -4.0 | -5.4 | -4.9 | 0.4 | 7.3 | 7.3 | |
| SMU | (Bratislava) |
|
| -1019.1 | -1022.6 | -1030.4 | -1028.0 | -1037.4 | -1058.2 | -1068.1 | - | 1.5 | 12.2 | 12.3 | |
| SP | (Boras) |
|
| -0.7 | -0.7 | -0.9 | -1.2 | -1.4 | -1.2 | -1.0 | -0.7 | 0.3 | 1.3 | 1.4 | |
| SU | (Moskva) |
|
| -7.1 | -7.9 | -8.0 | -7.9 | -6.9 | -5.4 | -4.2 | -4.2 | 1.4 | 6.4 | 6.5 | |
| TL | (Chung-Li) |
|
| 8.1 | 7.6 | 7.1 | 7.0 | 7.5 | 7.6 | 8.3 | 9.1 | 0.4 | 2.7 | 2.8 | |
| TP | (Praha) |
|
| 0.9 | -2.0 | 0.2 | -2.1 | 6.4 | 1.5 | -1.6 | -4.0 | 0.4 | 5.8 | 5.9 | |
| UA | (Kharkov) |
|
| -15.3 | -16.2 | -18.7 | -14.4 | -18.7 | -20.2 | -24.4 | -23.7 | 1.5 | 8.1 | 8.3 | |
| UME | (Gebze-Kocaeli) |
|
| -276.3 | -309.5 | -343.8 | -370.4 | -404.0 | -432.9 | -464.1 | -502.7 | 1.5 | 7.7 | 7.8 | |
| USNO | (Washington DC) |
|
| 1.0 | 0.7 | 0.7 | 0.7 | 0.6 | 0.4 | 0.7 | 1.1 | 0.3 | 1.1 | 1.1 | |
| VMI | (Ha Noi) |
|
| -27.9 | -28.4 | -29.5 | -22.6 | -15.4 | -6.4 | -8.8 | -4.9 | 1.3 | 20.0 | 20.1 | |
| VSL | (Delft) |
|
| 3.9 | 1.1 | -4.5 | 4.9 | 2.7 | -3.7 | -7.9 | -0.3 | 0.4 | 1.4 | 1.4 | |
| ZA | (Pretoria) |
|
| 12.8 | 15.2 | 14.9 | 16.1 | 19.1 | 19.6 | 17.4 | 12.5 | 0.4 | 20.0 | 20.0 | |
| - Notes on section 1: | |||||||||||||||
| (1) BIRM : Time steps of UTC(BIRM) of +10 ns and -20 ns on MJD 57759.25 and 57759.40. | |||||||||||||||
| (2) DMDM : Time step of UTC(DMDM) of 210 ns on MJD 57770.50. | |||||||||||||||
| (3) INTI : Time step of UTC(INTI) of -33 ns on MJD 57783. | |||||||||||||||
| (4) LT : Time step of UTC(LT) of 1700 ns on MJD 57764.37. | |||||||||||||||
| (5) MASM : Time step of UTC(MASM) of -246.6ns on MJD 57749.06. | |||||||||||||||
| Apparent time step of UTC(MASM) of about -100 ns during MJD 57778. | |||||||||||||||
| (6) SIQ : Time step of UTC(SIQ) of -1720 ns on MJD 57775.3. | |||||||||||||||
2 - Difference between the normalized frequencies of EAL and TAI.
| Interval of validity | f(EAL)-f(TAI) | ||
| Steering correction | 57749 - 57784 | 6.489x10-13 | (2016 DEC 27 - 2017 JAN 31) |
| New correction | 57784 - 57809 | 6.492x10-13 | (2017 JAN 31 - 2017 FEB 25) |
| New correction foreseen | 57809 - 57839 | 6.495x10-13 | (2017 FEB 25 - 2017 MAR 27) |
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 | 57749 57784 | -12.14 | 6.00 | 8.00 | 0.00 | 0.11 | 10.00 | PFS/NA | T148 | 8. | (1) |
| PTB-CS2 | 57749 57784 | -10.16 | 3.00 | 12.00 | 0.00 | 0.11 | 12.37 | PFS/NA | T148 | 12. | (1) |
| SYRTE-FO2 | 57749 57769 | -1.16 | 0.40 | 0.37 | 0.11 | 0.28 | 0.62 | PFS/NA | T301 | 0.23 | (2) |
| SYRTE-FORb | 57754 57784 | -1.24 | 0.24 | 0.28 | 0.11 | 0.20 | 0.43 | 0.7 [1] | T328 | 0.34 | (2) |
| PTB-CSF1 | 57739 57764 | -1.55 | 0.08 | 0.35 | 0.02 | 0.15 | 0.39 | PFS/NA | T162 | 1.40 | (3) |
| PTB-CSF2 | 57749 57774 | -1.72 | 0.12 | 0.20 | 0.04 | 0.15 | 0.28 | PFS/NA | T287 | 0.41 | (3) |
| SU-CsFO2 | 57749 57779 | -2.10 | 0.22 | 0.24 | 0.23 | 0.91 | 1.00 | PFS/NA | T315 | 0.50 | (4) |
Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 03 FEB. 2017 by LNE-SYRTE
(3) Report 02 FEB. 2017 by PTB
(4) Report 02 FEB. 2017 by SU
[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
57389-57784, and corresponding uncertainties.
| Period of estimation | d | u | |
| 57749-57784 | -1.46x10-15 | 0.28x10-15 | (2016 DEC 27 - 2017 JAN 31) |
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', until 2017 January 1, 0h UTC.
[UTC-UTC(SU)_GLONASS]= C1', [TAI-UTC(SU)_GLONASS]= 36 s + C1', until 2017 January 1, 0h UTC.
[UTC-UTC(USNO)_GPS] = C0', [TAI-UTC(USNO)_GPS] = 37 s + C0', from 2017 January 1, 0h UTC.
[UTC-UTC(SU)_GLONASS]= C1', [TAI-UTC(SU)_GLONASS]= 37 s + C1 , from 2017 January 1, 0h UTC.
For this edition of Circular T, σ0'= 1.0 ns, σ1'= 6.8 ns
| 2016/17 | 0h | UTC | MJD | C0'/ns | N0 | C1'/ns | N1' |
| DEC | 27 | 57749 | 3.1 | 90 | 209.1 | 84 | |
| DEC | 28 | 57750 | 0.8 | 89 | 212.6 | 85 | |
| DEC | 29 | 57751 | 1.1 | 89 | 217.1 | 85 | |
| DEC | 30 | 57752 | 4.8 | 89 | 218.2 | 87 | |
| DEC | 31 | 57753 | 2.8 | 90 | 215.3 | 70 | |
| JAN | 1 | 57754 | 1.0 | 89 | 210.9 | 38 | |
| JAN | 2 | 57755 | 2.6 | 88 | 209.4 | 89 | |
| JAN | 3 | 57756 | 3.4 | 89 | 211.3 | 89 | |
| JAN | 4 | 57757 | 2.2 | 90 | 208.3 | 89 | |
| JAN | 5 | 57758 | 0.8 | 87 | 203.8 | 87 | |
| JAN | 6 | 57759 | 2.8 | 89 | 204.0 | 85 | |
| JAN | 7 | 57760 | 1.7 | 89 | 208.1 | 70 | |
| JAN | 8 | 57761 | 1.9 | 90 | 212.2 | 58 | |
| JAN | 9 | 57762 | 3.2 | 89 | 212.9 | 89 | |
| JAN | 10 | 57763 | 0.3 | 89 | 213.6 | 82 | |
| JAN | 11 | 57764 | -0.6 | 89 | 214.0 | 89 | |
| JAN | 12 | 57765 | 0.5 | 90 | 211.7 | 84 | |
| JAN | 13 | 57766 | 1.0 | 89 | 208.9 | 82 | |
| JAN | 14 | 57767 | 2.8 | 89 | 206.2 | 80 | |
| JAN | 15 | 57768 | 2.6 | 89 | 202.0 | 89 | |
| JAN | 16 | 57769 | 1.3 | 90 | 199.2 | 90 | |
| JAN | 17 | 57770 | 1.3 | 89 | 200.4 | 85 | |
| JAN | 18 | 57771 | 3.4 | 89 | 201.3 | 87 | |
| JAN | 19 | 57772 | 0.6 | 89 | 200.1 | 85 | |
| JAN | 20 | 57773 | 0.3 | 90 | 200.2 | 90 | |
| JAN | 21 | 57774 | 0.7 | 89 | 202.7 | 84 | |
| JAN | 22 | 57775 | 1.4 | 89 | 204.7 | 87 | |
| JAN | 23 | 57776 | 2.6 | 89 | 204.1 | 86 | |
| JAN | 24 | 57777 | 1.4 | 90 | 203.3 | 81 | |
| JAN | 25 | 57778 | 1.3 | 88 | 206.8 | 89 | |
| JAN | 26 | 57779 | 1.7 | 89 | 211.9 | 86 | |
| JAN | 27 | 57780 | 2.4 | 89 | 213.7 | 87 | |
| JAN | 28 | 57781 | 1.9 | 90 | 212.4 | 88 | |
| JAN | 29 | 57782 | 2.3 | 89 | 212.2 | 81 | |
| JAN | 30 | 57783 | 3.5 | 89 | 213.8 | 86 | |
| JAN | 31 | 57784 | 3.1 | 89 | 214.8 | 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 | ||
| BEV /PTB | GPSPPP | BE1_ /PT02 | 1012-2016 | / | 1001-2014 | 0.3 | 2.5 | 0 | ||
| BIM /PTB | GPS MC | BM37 /PT07 | 2004-2008 | / | 1001-2014 | 1.5 | 9.2 | 6 | ||
| BIRM/PTB | GPSPPP | BIRM /PT02 | NC | / | 1001-2014 | 0.4 | 20.0 | |||
| BY /PTB | GPS MC | BY46 /PT07 | NA | / | 1001-2014 | 1.5 | 9.2 | 6 | ||
| CAO /PTB | GPS MC | CA__ /PT07 | NC | / | 1001-2014 | 8.0 | 20.0 | |||
| CNES/PTB | GPSPPP | CS22 /PT02 | 1101-2016 | / | 1001-2014 | 0.3 | 4.0 | 0 | ||
| CNM /PTB | GPS MC | CN00 /PT07 | NA_Al | / | 1001-2014 | 2.5 | 11.2 | 10 | -27.3 | 0804 |
| CNMP/PTB | GPSPPP | MP1_ /PT02 | NA_Al | / | 1001-2014 | 0.5 | 7.0 | 0 | 41.7 | 1607 |
| DFNT/PTB | GPS P3 | DN__ /PT02 | NC_Al | / | 1001-2014 | 0.7 | 20.0 | 10.3 | 1507 | |
| DLR /PTB | GPS P3 | DL05 /PT02 | 1012-2016 | / | 1001-2014 | 0.7 | 2.5 | 0 | ||
| DMDM/PTB | GPSPPP | ZM68 /PT02 | NA | / | 1001-2014 | 0.3 | 7.3 | 2 | ||
| DTAG/PTB | GPSPPP | DT02 /PT02 | NA | / | 1001-2014 | 0.3 | 7.6 | 3 | ||
| EIM /PTB | GPS MC | EI__ /PT07 | 1011-2007 | / | 1001-2014 | 2.5 | 7.8 | 6 | ||
| ESTC/PTB | GPSPPP | ES04 /PT02 | 1012-2012 | / | 1001-2014 | 0.3 | 5.4 | 2 | ||
| HKO /PTB | GPSPPP | HKO1 /PT02 | NA_Al | / | 1001-2014 | 0.3 | 7.3 | 2 | +15.9 | 1304 |
| IFAG/PTB | GPSPPP | IF13 /PT02 | 1011-2011 | / | 1001-2014 | 0.3 | 5.4 | 2 | ||
| IGNA/PTB | NL | |||||||||
| IMBH/PTB | GPSPPP | BH01 /PT02 | 2004-2016 | / | 1001-2014 | 0.3 | 7.0 | 0 | ||
| INCP/PTB | GPS MC | CP__ /PT07 | NC | / | 1001-2014 | 5.0 | 20.0 | |||
| INPL/PTB | GPSPPP | IL05 /PT02 | 2002-2016 | / | 1001-2014 | 0.3 | 7.0 | 0 | ||
| INTI/PTB | GPS MC | IN__ /PT07 | NC | / | 1001-2014 | 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 | NL | |||||||||
| KIM /PTB | GPS MC | KI02 /PT07 | NC_Al | / | 1001-2014 | 2.0 | 20.0 | -30.6 | 0901 | |
| KRIS/PTB | GPSPPP | KR01 /PT02 | 1003-2005 | / | 1001-2014 | 0.3 | 11.2 | 10 | ||
| KZ /PTB | GPS MC | KZ01 /PT07 | 2002-2008 | / | 1001-2014 | 1.5 | 9.2 | 6 | ||
| LT /PTB | GPS MC | LT01 /PT07 | 1007-2006 | / | 1001-2014 | 2.0 | 11.2 | 10 | ||
| MASM/PTB | GPS P3 | MN__ /PT02 | NC | / | 1001-2014 | 1.5 | 20.0 | |||
| MBM /PTB | NL | |||||||||
| MIKE/PTB | GPS P3 | MI04 /PT02 | 1102-2015 | / | 1001-2014 | 0.7 | 4.0 | 0 | ||
| MKEH/PTB | GPS MC | MK01 /PT07 | NC | / | 1001-2014 | 1.5 | 20.0 | |||
| MSL /PTB | GPS P3 | MS0_ /PT02 | NC | / | 1001-2014 | 1.5 | 20.0 | |||
| MTC /PTB | GPSPPP | MC02 /PT02 | NA_Al | / | 1001-2014 | 0.3 | 7.3 | 2 | 32.6 | 1503 |
| NAO /PTB | GPS MC | NA__ /PT07 | NC | / | 1001-2014 | 2.0 | 20.0 | |||
| NICT/PTB | GPSPPP | NC01 /PT02 | 1001-2014 | / | 1001-2014 | 0.3 | 2.0 | 1 | ||
| NIMB/PTB | GPSPPP | MB02 /PT02 | NA_Al | / | 1001-2014 | 0.3 | 7.1 | 1 | 32.2 | 1611 |
| NIMT/PTB | GPS P3 | MTTO /PT02 | NC | / | 1001-2014 | 1.0 | 20.0 | |||
| NIS /PTB | GPS P3 | IS__ /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 | LI2P /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 | |||
| ONBA/PTB | GPS MC | ON__ /PT07 | 1002-2004 | / | 1001-2014 | 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__ /PT07 | 1001-1993 | / | 1001-2014 | 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 | GPS MC | SM00 /PT07 | NA_Al | / | 1001-2014 | 1.5 | 12.2 | 10 | 57.8 | 0908 |
| SU /PTB | GPS MC | SU19 /PT07 | NA_Al | / | 1001-2014 | 1.5 | 7.1 | 5 | -7.8 | 1411 |
| TL /PTB | GPSPPP | TLT1 /PT02 | NA_Al | / | 1001-2014 | 0.3 | 2.6 | 2 | ||
| TP /PTB | GPSPPP | TP04 /PT02 | 1002-2009 | / | 1001-2014 | 0.3 | 5.8 | 3 | ||
| UA /PTB | GPS MC | UA04 /PT07 | 2003-2011 | / | 1001-2014 | 1.5 | 8.1 | 4 | ||
| UME /PTB | GPS MC | UM01 /PT07 | NA | / | 1001-2014 | 1.5 | 7.6 | 3 | ||
| VMI /PTB | GPS P3 | VM__ /PT02 | NC | / | 1001-2014 | 1.3 | 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 | 2.5 | 0 | ||||
| CH /PTB | TWGPPP | CH01 /PTB01 | 0284-2012 | 0.3 | 1.4 | 1 | ||||
| IT /PTB | TWSTFT | IT02 /PTB01 | 0374-2014 | 0.5 | 1.0 | 0 | ||||
| JATC/NTSC | INT LK | INTDLY | 0.2 | 1.0 | 0 | |||||
| NIM /PTB | TWGPPP | NIM01 /PTB03 | 0417-2016 | 0.3 | 1.5 | 0 | ||||
| NIST/PTB | TWGPPP | NIST01/PTB01 | 0393-2015 | 0.3 | 1.5 | 0 | ||||
| NPL /PTB | TWGPPP | NPL01 /PTB01 | NA_Al | 1.0 | 7.1 | 1 | ||||
| NTSC/PTB | TWSTFT | NTSC02/PTB03 | 0418-2016 | 0.5 | 1.5 | 0 | ||||
| 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 | 0395-2016 | 0.3 | 1.0 | 0 | ||||
| VSL /PTB | TWGPPP | VSL01 /PTB01 | 0295-2015 | 0.3 | 1.0 | 0 | ||||
