CIRCULAR T 361 ISSN 1143-1393
2018 FEBRUARY 12, 10h UTC
BUREAU INTERNATIONAL DES POIDS ET MESURES
THE INTERGOVERNMENTAL ORGANIZATION ESTABLISHED BY THE METRE CONVENTION
PAVILLON DE BRETEUIL F-92312 SEVRES CEDEX TEL. +33 1 45 07 70 70 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 2017 January 1, 0h UTC, TAI-UTC = 37 s.
Date 2017/18 0h UTC DEC 27 JAN 1 JAN 6 JAN 11 JAN 16 JAN 21 JAN 26 JAN 31 Uncertainty/ns Notes
MJD 58114 58119 58124 58129 58134 58139 58144 58149 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -8.6 -8.4 -7.5 -7.0 -7.2 -7.1 -6.9 -7.7 0.5 3.2 3.3
APL (Laurel) 4.6 5.1 4.8 4.2 -1.8 -3.7 -5.0 -5.8 0.4 10.9 10.9
AUS (Sydney) 242.9 227.8 225.0 228.6 232.7 225.1 211.8 212.6 0.4 6.3 6.3
BEV (Wien) -24.1 -23.9 -31.2 -30.4 -28.4 -29.0 -31.1 -26.2 0.4 3.0 3.1
BIM (Sofiya) 7761.1 7803.3 7829.9 7870.0 7894.9 7950.5 8011.7 8006.7 0.7 3.1 3.2
BIRM (Beijing) 9.6 9.1 11.7 10.2 8.5 8.8 10.8 11.5 0.5 3.0 3.0
BOM (Skopje) 98.0 100.8 110.5 116.9 114.9 115.4 113.9 117.9 0.4 3.1 3.1
BY (Minsk) -2.8 -2.5 -1.6 -1.9 -2.2 -1.9 -1.9 -0.9 1.5 9.7 9.8
CAO (Cagliari) -1301.0 -1397.7 -1498.4 -1595.6 -1698.1 -1885.2 -2050.9 -2000.9 8.0 20.0 21.6
CH (Bern-Wabern) -0.1 -2.4 -3.0 -2.2 -1.7 -0.8 1.7 5.9 0.5 2.1 2.2
CNES (Toulouse) 14.8 15.2 16.8 15.0 12.6 12.7 9.0 10.2 0.4 4.4 4.4
CNM (Queretaro) -8.9 -8.1 -1.7 5.6 14.3 10.4 1.8 -2.1 2.5 11.2 11.5
CNMP (Panama) 23.5 39.9 36.0 16.4 9.4 2.7 6.2 13.1 0.5 7.3 7.3
DFNT (Tunis) 24461.7 24660.0 24862.1 25047.9 25251.6 25445.4 25633.0 25830.6 0.7 20.0 20.0
DLR (Oberpfaffenhofen) - - - - - -164.9 -112.5 -57.0 0.7 3.1 3.1
DMDM (Belgrade) 395.9 446.3 501.4 557.7 611.2 666.7 708.2 762.5 0.4 3.1 3.1
DTAG (Frankfurt/M) 7.6 10.9 16.5 29.5 32.0 38.9 46.3 38.9 0.4 3.0 3.0
EIM (Thessaloniki) -1.2 3.9 18.3 - - - - - 3.0 11.3 11.7
ESTC (Noordwijk) -0.3 -1.9 -0.7 0.4 0.7 0.4 0.9 0.8 0.4 3.0 3.0
HKO (Hong Kong) 1303.7 1318.8 1332.9 - - - - - 0.4 7.8 7.8
ICE (San Jose) - - - - - 43.0 51.4 43.7 5.0 20.0 20.7
IFAG (Wettzell) -931.4 -934.1 -929.6 -940.9 -932.3 -933.1 -940.4 -938.4 1.0 6.1 6.2
IMBH (Sarajevo) -1.1 -1.3 -0.3 -2.5 -0.8 1.3 1.4 0.4 0.4 7.2 7.2
INCP (Lima) 57.9 64.7 49.4 42.9 50.4 71.1 48.9 50.4 5.0 20.0 20.7
INM (Bogota D.C.) -22.2 - - - -20.0 -17.8 -10.9 -11.1 2.0 20.0 20.1
INPL (Jerusalem) -63.9 -69.4 -67.8 -66.7 -65.1 -69.1 -75.7 -67.5 0.4 7.2 7.2
INTI (Buenos Aires) 98.1 100.0 96.4 103.2 101.4 105.0 123.1 121.1 2.5 20.0 20.2
INXE (Rio de Janeiro) -9.5 -11.6 -18.1 -9.7 -0.8 9.4 8.9 6.7 0.4 20.0 20.0
IT (Torino) 3.0 3.3 2.8 2.2 2.6 3.7 3.7 3.6 0.5 1.6 1.7
JATC (Lintong) 2.0 1.4 2.4 0.9 -0.2 -0.4 -0.3 1.1 0.4 2.5 2.5
JV (Kjeller) -2.3 -4.4 -3.6 -10.9 -19.8 -21.1 -25.1 -29.5 0.4 20.0 20.0
KEBS (Nairobi) - - - - - - - -
KIM (Serpong-Tangerang) 300.6 286.6 283.6 317.8 338.6 349.8 363.0 366.9 2.0 20.0 20.1
KRIS (Daejeon) -9.8 -10.9 -4.6 7.8 25.4 33.7 37.8 37.6 0.4 3.0 3.0
KZ (Astana) - - -71.7 -66.9 -65.6 -60.6 -47.2 -47.5 1.5 9.7 9.8
LT (Vilnius) 241.2 243.6 265.1 271.8 249.5 243.6 234.6 234.6 2.0 11.3 11.4
MASM (Bayanzurkh) -407.1 -426.4 -444.4 -464.3 -483.3 -52.2 -72.1 -95.7 0.5 20.0 20.0 (1)
MBM (Podgorica) 59457.5 59788.9 60119.3 60463.4 60784.0 61117.7 61452.1 61787.9 1.5 20.0 20.1
MIKE (Espoo) -2.0 -2.0 -2.1 -1.7 -1.3 -0.8 -0.3 0.3 0.7 4.4 4.4
MKEH (Budapest) 5150.4 4939.8 4731.5 4536.3 4328.0 4127.8 3921.9 3714.6 1.5 20.0 20.1
MSL (Lower Hutt) 263.1 261.8 254.9 258.8 268.2 292.9 303.0 298.7 1.5 20.0 20.1
MTC (Makkah) 1344.5 1354.2 1368.0 1385.9 1398.8 1408.7 1410.6 1415.2 1.7 8.1 8.3
NAO (Mizusawa) 76.6 69.0 79.6 87.0 92.2 82.4 93.7 102.1 2.0 20.0 20.1
NICT (Tokyo) 21.5 20.3 21.4 22.0 19.2 15.3 14.3 16.1 0.4 2.3 2.3
NIM (Beijing) -1.9 -2.4 -1.7 -2.0 -2.1 -3.1 -3.1 -3.4 0.4 2.2 2.2
NIMB (Bucharest) 830.8 878.3 928.1 974.7 1024.1 1071.7 1125.2 1175.6 0.4 7.4 7.4
NIMT (Pathumthani) 266.5 260.9 249.0 220.3 188.4 160.5 138.7 118.7 1.5 3.2 3.6
NIS (Cairo) 14.5 3.8 2.7 2.3 7.0 -2.1 -2.7 -8.4 1.6 20.0 20.1
NIST (Boulder) -0.7 -0.8 0.0 0.1 -0.4 -0.9 -0.7 -0.3 0.4 2.0 2.1
NMIJ (Tsukuba) -1.1 -1.2 -1.3 -1.6 -1.0 -0.3 0.2 1.8 0.4 3.1 3.1
NMLS (Sepang) -134.8 -179.7 -234.2 -281.0 -319.6 -359.4 -399.0 -438.3 1.5 3.2 3.6
NPL (Teddington) -3.7 -4.6 -3.6 -4.6 -4.8 -4.9 -4.9 -4.3 0.4 2.9 2.9
NPLI (New-Delhi) 7.1 1.9 0.3 2.2 3.3 5.2 5.5 4.8 0.4 19.8 19.8
NRC (Ottawa) 48.2 51.3 53.7 50.7 56.3 56.9 60.7 62.2 0.4 2.9 3.0
NRL (Washington DC) - - - - - - - -
NTSC (Lintong) 1.9 1.1 1.5 1.1 -0.3 0.0 0.6 1.1 0.4 2.3 2.3
ONBA (Buenos Aires) -2196.3 -2209.2 -2216.1 -2233.2 -2227.2 -2224.4 -2226.4 -2221.9 2.0 11.3 11.4
ONRJ (Rio de Janeiro) -5.4 -2.7 -0.7 -2.0 6.7 -3.3 -8.4 0.3 1.0 7.8 7.8
OP (Paris) -1.7 -1.0 0.4 0.4 0.3 1.3 2.0 2.4 0.4 1.6 1.7
ORB (Bruxelles) -1.5 -1.9 -1.0 -0.6 0.2 0.6 0.9 1.3 0.4 2.9 3.0
PL (Warszawa) -36.5 -45.3 -50.9 -52.2 -42.4 -30.7 -12.6 5.6 0.4 3.9 3.9
PTB (Braunschweig) -0.2 -0.2 -0.1 0.0 0.1 0.4 0.6 0.5 0.2 1.2 1.2
ROA (San Fernando) -2.9 -2.9 -2.7 -1.1 -1.5 -1.1 -1.8 -2.0 0.4 1.6 1.7
SASO (Riyadh) -684.4 -692.0 -702.5 -707.9 -711.2 -715.1 -721.1 -721.0 0.4 7.7 7.7
SCL (Hong Kong) -31.2 -26.0 -27.4 -24.8 -30.2 -38.7 -38.7 -37.7 5.0 14.1 15.0
SG (Singapore) -1.2 -4.8 -1.1 0.8 2.8 5.5 12.5 17.1 0.7 6.3 6.4
SIQ (Ljubljana) 297.8 307.1 304.4 275.8 275.8 236.4 238.9 248.1 0.4 7.4 7.4
SMD (Bruxelles) 4.2 5.2 9.9 8.4 5.5 -0.3 -2.1 0.5 0.4 3.0 3.0
SMU (Bratislava) -1575.9 - -1595.9 -1603.4 -1602.5 -1613.1 -1616.1 -1618.1 1.5 12.3 12.4
SP (Boras) 0.2 0.5 0.9 1.2 1.7 2.2 2.2 2.4 0.4 1.6 1.6
SU (Moskva) -1.1 -0.8 -1.0 -0.9 -0.8 -0.5 -0.1 0.3 1.3 6.9 7.0
TL (Chung-Li) -7.0 -8.1 -7.4 -6.9 -6.6 -6.6 -6.1 -5.7 0.4 2.3 2.3
TP (Praha) 9.7 6.4 -3.7 0.5 -4.0 -4.2 -6.9 -10.1 0.4 6.6 6.6
UA (Kharkov) 5.5 3.4 10.8 6.3 8.0 -12.0 -1.5 -13.1 1.5 8.9 9.0
UAE (Abu Dhabi) 51.8 52.9 56.2 56.7 52.3 46.6 - - 4.0 8.3 9.2
UME (Gebze-Kocaeli) -41.7 -56.5 -67.1 -76.9 -73.5 -82.0 -95.7 -101.7 0.7 3.1 3.1
USNO (Washington DC) 2.8 3.1 3.6 3.2 2.6 2.5 1.2 -0.3 0.3 1.4 1.5
VMI (Ha Noi) 117.4 86.6 57.2 28.7 1.4 -0.3 1.8 5.1 3.0 3.2 4.4
VSL (Delft) 11.4 9.3 8.6 4.4 4.3 -8.1 -13.1 -13.8 0.4 1.7 1.7
ZA (Pretoria) -1.4 -2.1 -4.0 -5.3 -6.0 -8.5 -10.7 -11.1 0.4 4.3 4.3
- Notes on section 1:
(1) MASM : Time step of UTC(MASM) of about -450 ns on MJD 58136.37.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58114 - 58149 6.501x10-13 (2017 DEC 27 - 2018 JAN 31)
New correction 58149 - 58174 6.501x10-13 (2018 JAN 31 - 2018 FEB 25)
New correction foreseen 58174 - 58204 6.501x10-13 (2018 FEB 25 - 2018 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) Steer Note
Estimation
PTB-CS1 58114 58149 -16.86 8.00 8.00 0.00 0.11 11.31 PFS/NA T148 8. Y (1)
PTB-CS2 58114 58149 -0.86 5.00 12.00 0.00 0.11 13.00 PFS/NA T148 12. Y (1)
NIM5 58124 58144 -0.59 0.30 0.90 0.20 0.38 1.04 PFS/NA T340 1.40 Y (2)
PTB-CSF1 58114 58134 0.08 0.07 0.39 0.07 0.19 0.44 PFS/NA T162 1.40 Y (3)
PTB-CSF1 58139 58149 0.22 0.11 0.40 0.03 0.35 0.54 PFS/NA T162 1.40 Y (4)
PTB-CSF2 58139 58149 0.20 0.18 0.20 0.02 0.35 0.44 PFS/NA T287 0.41 Y (4)
SU-CsFO2 58139 58149 -0.65 0.37 0.24 0.13 2.28 2.33 PFS/NA T315 0.50 Y (5)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 05 FEB. 2018 by NIM
(3) Report 09 FEB. 2018 by PTB
(4) Report 01 FEB. 2018 by PTB
(5) Report 02 FEB. 2018 by SU

Table 2: Estimate of d by the BIPM based on all PSFS measurements identified to be used for TAI steering
over the period MJD57754-58149, and corresponding uncertainties.

Period of estimation d u
58114-58149 0.00x10-15 0.26x10-15 (2017 DEC 27 - 2018 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] = 37 s + C0'
[UTC-UTC(SU)_GLONASS]= C1', [TAI-UTC(SU)_GLONASS]= 37 s + C1'

For this edition of Circular T, σ0'= 0.9 ns, σ1'= 6.6 ns

2017/18 0h UTC MJD C0'/ns N0 C1'/ns N1'
DEC 27 58114 -0.9 89 9.0 84
DEC 28 58115 -0.9 89 9.0 89
DEC 29 58116 -0.3 90 9.7 88
DEC 30 58117 -0.5 89 9.7 85
DEC 31 58118 -0.2 89 10.4 87
JAN 1 58119 0.4 89 10.8 85
JAN 2 58120 -0.2 90 8.7 90
JAN 3 58121 -1.2 89 7.8 87
JAN 4 58122 -1.3 89 8.9 80
JAN 5 58123 1.3 89 8.1 88
JAN 6 58124 2.1 90 7.1 88
JAN 7 58125 0.5 89 8.9 87
JAN 8 58126 -0.6 89 8.7 52
JAN 9 58127 -0.8 89 5.8 17
JAN 10 58128 -0.4 90 5.3 90
JAN 11 58129 0.1 89 6.0 89
JAN 12 58130 0.0 89 6.2 89
JAN 13 58131 0.0 89 5.4 87
JAN 14 58132 -1.8 90 5.0 90
JAN 15 58133 -1.1 89 5.7 81
JAN 16 58134 -0.7 89 5.4 89
JAN 17 58135 -1.1 89 4.9 88
JAN 18 58136 -0.5 90 4.2 90
JAN 19 58137 -0.9 89 4.5 89
JAN 20 58138 0.7 89 6.1 86
JAN 21 58139 0.0 89 6.4 88
JAN 22 58140 0.2 90 6.4 88
JAN 23 58141 -1.7 89 7.3 80
JAN 24 58142 -2.4 89 6.9 88
JAN 25 58143 -1.3 88 7.2 87
JAN 26 58144 -2.1 90 8.1 90
JAN 27 58145 -3.3 89 7.0 88
JAN 28 58146 -2.6 89 6.5 89
JAN 29 58147 -2.9 89 7.1 88
JAN 30 58148 -3.3 90 7.7 88
JAN 31 58149 -3.2 89 8.5 84

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 AP02 /PT02 NA_Al / 1001-2016 0.3 11.2 10.0 24.3 1511
AUS /PTB GPSPPP AU01 /PT02 1002-2010 / 1001-2016 0.3 6.2 3.6
BEV /PTB GPSPPP BE1_ /PT02 1012-2016 / 1001-2016 0.3 2.8 1.2
BIM /PTB GPS P3 BM37 /PT02 1011-2016 / 1001-2016 0.7 2.9 1.4
BIRM/PTB GPSPPP BI01 /PT02 1015-2016 / 1001-2016 0.4 2.7 1.0
BOM /PTB GPSPPP MABM /PT02 1011-2016 / 1001-2016 0.3 2.8 1.2
BY /PTB GPS MC BY46 /PT10 NA / 1001-2016 1.5 9.6 6.5
CAO /PTB GPS MC CA__ /PT10 NC / 1001-2016 8.0 20.0
CNES/PTB GPSPPP CS22 /PT02 1101-2016 / 1001-2016 0.3 4.2 1.2
CNM /PTB GPS MC CN00 /PT10 NA_Al / 1001-2016 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPSPPP MP1_ /PT02 NA_Al / 1001-2016 0.5 7.2 1.6 41.7 1607
DFNT/PTB GPS P3 DN__ /PT02 NC_Al / 1001-2016 0.7 20.0 10.3 1507
DLR /PTB GPS P3 DL05 /PT02 1012-2016 / 1001-2016 0.7 2.8 1.3
DMDM/PTB GPSPPP ZM68 /PT02 1011-2016 / 1001-2016 0.3 2.8 1.2
DTAG/PTB GPSPPP DT04 /PT02 1015-2017 / 1001-2016 0.3 2.7 1.0
EIM /PTB GPS MC EI__ /PT10 1011-2007 / 1001-2016 3.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT02 1019-2016 / 1001-2016 0.3 2.7 1.0
HKO /PTB GPSPPP HKO1 /PT02 NA_Al / 1001-2016 0.3 7.7 3.0 +15.9 1304
ICE /PTB GPS MC CE1_ /PT10 NC / 1001-2016 5.0 20.0
IFAG/PTB GPS P3 IF19 /PT02 NA_Al / 1001-2016 1.0 6.0 3.3
IMBH/PTB GPSPPP BH01 /PT02 2004-2016 / 1001-2016 0.3 7.1 0.9
INCP/PTB GPS MC CP__ /PT10 NC / 1001-2016 5.0 20.0
INM /PTB GPS MC IC__ /PT10 NC / 1001-2016 2.0 20.0
INPL/PTB GPSPPP IL05 /PT02 2002-2016 / 1001-2016 0.3 7.1 1.0
INTI/PTB GPS MC IN__ /PT10 NC / 1001-2016 2.5 20.0
INXE/PTB GPSPPP NXRA /PT02 NC / 1001-2016 0.3 20.0
JV /PTB GPSPPP JV01 /PT02 NC_Al / 1001-2016 0.3 20.0 130.0 1509
KEBS/PTB NL
KIM /PTB GPS MC KI02 /PT10 NC_Al / 1001-2016 2.0 20.0 -30.6 0901
KRIS/PTB GPSPPP KRG1 /PT02 1017-2017 / 1001-2016 0.3 2.7 1.0
KZ /PTB GPS MC KZ01 /PT10 2002-2008 / 1001-2016 1.5 9.6 6.5
LT /PTB GPS MC LT01 /PT10 1007-2006 / 1001-2016 2.0 11.2 10.0
MASM/PTB GPSPPP MN__ /PT02 NC / 1001-2016 0.4 20.0
MBM /PTB GPS MC MEBM /PT10 NC / 1001-2016 1.5 20.0
MIKE/PTB GPS P3 MI04 /PT02 1102-2015 / 1001-2016 0.7 4.3 1.6
MKEH/PTB GPS MC MK01 /PT10 NC / 1001-2016 1.5 20.0
MSL /PTB GPS P3 MS0_ /PT02 NC / 1001-2016 1.5 20.0
MTC /PTB GPS MC MC02 /PT02 2001-2013 / 1001-2016 1.7 8.1 4.1
NAO /PTB GPS MC NAT2 /PT10 NC / 1001-2016 2.0 20.0
NICT/PTB GPSPPP NC01 /PT02 1001-2016 / 1001-2016 0.3 2.1 1.3
NIM /PTB GPSPPP IM06 /PT02 1001-2016 / 1001-2016 0.3 1.9 1.2
NIMB/PTB GPSPPP MB02 /PT02 NA_Al / 1001-2016 0.3 7.3 1.9 32.2 1611
NIMT/PTB GPS MC MTTO /PT10 1013-2017 / 1001-2016 1.5 3.0 1.7
NIS /PTB GPS P3 IS__ /PT02 NC_Al / 1001-2016 1.6 20.0 +16.4 1303
NMIJ/PTB GPSPPP NM0D /PT02 NA_Al / 1001-2016 0.3 2.9 2.4
NMLS/PTB GPS MC LSM1 /PT10 1013-2017 / 1001-2016 1.5 3.0 1.7
NPL /PTB GPSPPP NPL2 /PT02 1014-2017 / 1001-2016 0.3 2.7 1.0
NPLI/PTB GPSPPP LI2P /PT02 NC / 1001-2016 0.3 20.0
NRC /PTB GPSPPP NRC4 /PT02 1017-2016 / 1001-2016 0.3 2.7 1.0
NRL /PTB NL
NTSC/PTB GPSPPP NTP3 /PT02 1001-2016 / 1001-2016 0.3 2.0 1.1
ONBA/PTB GPS MC ON__ /PT10 1002-2004 / 1001-2016 2.0 11.2 10.0
ONRJ/PTB GPS P3 RJ01 /PT02 NA_Al / 1001-2016 1.0 7.7 3.3 +5.6 1302
ORB /PTB GPSPPP OR1Z /PT02 1018-2017 / 1001-2016 0.3 2.7 1.0
PL /PTB GPSPPP PL_3 /PT02 1101-2013 / 1001-2016 0.3 3.7 2.7
SASO/PTB GPSPPP SA00 /PT02 NA_Al / 1001-2016 0.3 7.6 2.9 32.8 1505
SCL /PTB GPS MC SC__ /PT10 1001-1993 / 1001-2016 5.0 14.1 10.0
SG /PTB GPS P3 SG2P /PT02 1001-2010 / 1001-2016 0.7 6.3 3.9
SIQ /PTB GPSPPP SI01 /PT02 2002-2014 / 1001-2016 0.3 7.3 2.2
SMD /PTB GPSPPP SD21 /PT02 1014-2017 / 1001-2016 0.3 2.7 1.0
SMU /PTB GPS MC SM00 /PT10 NA_Al / 1001-2016 1.5 12.2 10.0 57.8 0908
SU /PTB GPS MC SU19 /PT10 NA_Al / 1001-2016 1.5 7.9 6.1 -7.8 1411
TL /PTB GPSPPP TLT1 /PT02 1001-2016 / 1001-2016 0.3 2.0 1.4
TP /PTB GPSPPP TP04 /PT02 1002-2009 / 1001-2016 0.3 6.5 4.2
UA /PTB GPS MC UA04 /PT10 2003-2011 / 1001-2016 1.5 8.8 5.4
UAE /PTB GPS MC AE__ /PT10 2001-2016 / 1001-2016 4.0 8.2 4.3
UME /PTB GPS P3 UM01 /PT02 1011-2016 / 1001-2016 0.7 2.8 1.3
VMI /PTB GPS MC VM__ /PT10 1013-2017 / 1001-2016 3.0 3.0 1.7
ZA /PTB GPSPPP ZA02 /PT02 1102-2016 / 1001-2016 0.3 4.1 1.0
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
AOS /PTB TWSTFT AOS01 /PTB05 0449-2017 0.5 3.0 1.2
CH /PTB TWSTFT CH01 /PTB05 0284-2012 0.5 1.7 1.4
IT /PTB TWSTFT IT02 /PTB05 0434-2016 0.5 1.1 0.4
JATC/NTSC INT LK INTDLY 3001-2017 0.2 1.0 0.0
NIST/PTB TWSTFT NIST01/PTB05 0393-2015 0.3 1.7 0.8
OP /PTB TWGPPP OP01 /PTB05 0437-2016 0.3 1.1 0.4
ROA /PTB TWGPPP ROA01 /PTB05 0440-2016 0.3 1.1 0.4
SP /PTB TWGPPP SP01 /PTB05 0441-2016 0.3 1.1 0.4
USNO/PTB TWSTFT USNO01/PTB05 0395-2016 0.3 1.1 0.2
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.2 0.5