CIRCULAR T 365 ISSN 1143-1393
2018 JUNE 12, 08h 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 2018 0h UTC APR 26 MAY 1 MAY 6 MAY 11 MAY 16 MAY 21 MAY 26 MAY 31 Uncertainty/ns Notes
MJD 58234 58239 58244 58249 58254 58259 58264 58269 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) 1.1 0.1 -0.6 -1.5 -2.9 -4.5 -5.5 -5.4 0.5 3.3 3.3
APL (Laurel) 3.0 -1.8 -1.6 -1.4 -1.7 -2.4 -3.1 -3.9 0.4 11.0 11.0
AUS (Sydney) 64.3 75.1 73.4 62.7 43.7 42.1 30.0 27.7 0.4 6.3 6.3
BEV (Wien) 0.6 1.9 -1.9 -1.4 2.1 4.5 -2.5 6.5 0.4 3.2 3.2
BIM (Sofiya) - - - - - - - -
BIRM (Beijing) 7.4 8.2 9.3 7.6 6.9 8.2 10.5 11.9 0.5 3.1 3.1
BOM (Skopje) -189.9 -223.1 -245.7 -74.4 -98.0 -143.4 -169.3 -198.0 1.5 8.1 8.2 (1)
BY (Minsk) -2.6 -2.7 -2.3 -2.8 -2.2 -2.7 -2.2 -1.9 1.5 9.7 9.8
CAO (Cagliari) - - - - - - - -
CH (Bern-Wabern) 1.6 -0.1 -1.0 -1.3 -2.1 -2.6 -2.6 -0.7 0.5 2.2 2.3
CNES (Toulouse) 4.6 4.6 2.4 2.8 -0.9 1.5 0.6 -1.2 0.4 4.6 4.6
CNM (Queretaro) -15.5 6.3 -1.4 -7.4 2.5 -1.9 -1.9 6.2 2.5 11.2 11.5
CNMP (Panama) 6.3 -4.2 -14.2 -15.8 17.8 21.6 16.5 20.8 0.6 7.3 7.3
DFNT (Tunis) 29138.8 29310.7 29499.7 29698.9 29893.9 30078.4 30274.5 30473.9 0.7 20.0 20.1
DLR (Oberpfaffenhofen) -3.1 12.4 -197.3 -318.3 -462.4 -516.2 -356.6 -208.5 0.7 3.2 3.2
DMDM (Belgrade) 1668.7 1719.3 1781.6 1829.2 1880.1 1934.7 1976.8 2025.6 0.4 3.2 3.2
DTAG (Frankfurt/M) -11.0 -19.8 -27.2 -32.8 -33.7 -35.7 -43.2 -44.2 0.4 3.1 3.1
EIM (Thessaloniki) - - - - - - - -
ESTC (Noordwijk) -5.6 -4.2 -3.4 -2.3 -1.9 -0.4 0.6 0.9 0.4 3.1 3.1
HKO (Hong Kong) 337.5 348.1 353.0 360.5 360.1 363.8 -29.5 -27.3 0.4 7.8 7.8 (2)
ICE (San Jose) -39.3 -39.2 -49.9 -26.8 -27.1 -35.6 -38.3 -35.7 5.0 20.0 20.7
IFAG (Wettzell) -948.1 -922.5 -927.0 -969.3 -971.8 -962.2 -956.8 -936.3 0.4 6.2 6.2
IGNA (Buenos Aires) - 8.4 4.1 3.7 2.9 3.9 2.4 3.1 2.5 20.0 20.2
IMBH (Sarajevo) -0.8 0.2 -0.1 -4.3 1.4 -1.1 0.1 2.0 0.4 7.2 7.2
INCP (Lima) -1.3 123.6 239.5 358.6 474.8 526.4 513.8 511.6 5.0 20.0 20.7
INM (Bogota D.C.) -20.2 -20.6 -29.7 -33.1 -27.7 -33.5 -30.8 -29.1 2.0 20.0 20.1
INPL (Jerusalem) -46.6 -46.0 -45.4 -48.6 -43.5 -48.5 -47.0 -48.3 0.4 7.2 7.2
INTI (Buenos Aires) - 14.5 23.5 20.4 20.3 22.0 0.6 -6.1 2.5 20.0 20.2
INXE (Rio de Janeiro) -7.0 -12.9 -11.7 -16.8 -11.5 -6.3 -4.3 -3.5 0.4 20.0 20.0
IPQ (Caparica) - -21.9 -16.3 -12.3 -15.2 -26.2 -30.1 -41.5 0.5 20.0 20.0
IT (Torino) -3.1 -1.2 -1.4 -2.4 -1.9 -2.2 -3.7 -3.4 0.5 1.7 1.8
JATC (Lintong) -1.2 -1.7 -3.9 -4.6 -5.1 -3.5 -1.4 1.1 0.4 2.7 2.8
JV (Kjeller) -39.3 -35.6 -34.3 -41.3 -38.9 -43.1 -48.4 -55.4 0.7 20.0 20.0
KEBS (Nairobi) - - - - - - - -
KIM (Serpong-Tangerang) 577.0 554.8 562.6 587.9 559.2 556.7 563.8 574.3 2.0 20.0 20.1
KRIS (Daejeon) 3.6 1.3 -0.3 -2.3 -4.2 -5.8 -6.3 -5.7 0.4 3.1 3.1
KZ (Astana) -6.9 -36.2 -35.2 -45.8 -27.2 -19.4 -93.5 -83.5 1.5 9.7 9.8
LT (Vilnius) 246.8 254.4 275.2 290.2 313.4 306.8 310.6 325.2 2.0 11.3 11.4
MASM (Bayanzurkh) -153.6 -170.5 -196.1 -213.7 -239.4 -258.5 -265.9 -276.2 0.5 20.0 20.0
MBM (Podgorica) 67289.9 67618.3 67909.4 68233.0 68561.1 68868.2 69217.0 69519.3 1.5 20.0 20.1
MIKE (Espoo) -1.1 -1.9 -1.6 -1.3 -1.6 -1.3 -0.7 0.0 0.7 4.5 4.5
MKEH (Budapest) 327.2 130.7 -69.1 -266.6 -485.0 -682.3 -890.1 -1076.2 1.5 20.0 20.1
MSL (Lower Hutt) 302.4 298.6 336.7 360.5 341.2 361.6 368.6 348.6 1.5 20.0 20.1
MTC (Makkah) 53.4 53.8 48.2 -3.8 -11.3 -18.0 -17.3 -25.4 1.7 8.3 8.5
NAO (Mizusawa) 23.8 5.3 -1.0 -18.4 -25.7 -29.5 -34.2 -41.3 2.0 20.0 20.1
NICT (Tokyo) -0.3 0.8 1.7 1.5 2.1 4.9 6.3 7.3 0.4 2.5 2.5
NIM (Beijing) -0.3 -3.1 -2.5 -2.1 -1.4 -0.5 -1.0 0.2 0.4 2.4 2.4
NIMB (Bucharest) 2012.7 2059.4 2102.4 2152.9 2197.5 2244.6 2292.2 2336.1 0.4 7.4 7.4
NIMT (Pathumthani) -148.8 -146.9 -147.9 -152.6 -148.3 -155.1 -160.3 -169.1 1.5 3.5 3.8
NIS (Cairo) - 31.0 55.2 47.7 35.2 16.2 -4.2 -24.7 1.6 20.0 20.1
NIST (Boulder) -2.6 -4.0 -3.5 -2.2 -0.9 0.1 1.6 2.7 0.4 2.1 2.1
NMIJ (Tsukuba) 13.2 12.5 12.1 12.1 10.9 9.6 8.0 6.7 0.4 3.2 3.2
NMLS (Sepang) -1107.4 -1139.7 -1181.1 -1213.2 -1256.0 -1297.0 -1338.8 -1366.4 1.5 3.5 3.8
NPL (Teddington) 0.9 1.2 1.1 1.1 1.5 1.9 1.7 1.6 0.4 3.0 3.0
NPLI (New-Delhi) 16.9 12.5 8.1 5.1 2.9 2.6 3.0 3.9 0.7 7.2 7.2
NRC (Ottawa) 44.7 46.2 48.1 49.6 51.9 44.4 44.3 45.6 0.4 3.0 3.1
NRL (Washington DC) - - - - - - - -
NTSC (Lintong) -0.5 -1.2 -3.8 -3.6 -4.1 -1.5 0.5 2.3 0.4 2.5 2.5
ONBA (Buenos Aires) -2184.8 -2178.8 -2191.0 -2167.8 -2164.5 -2176.7 -2170.1 -2171.4 2.0 11.3 11.4
ONRJ (Rio de Janeiro) 3.4 -1.1 -2.5 -7.6 1.5 2.1 1.2 -7.7 1.0 7.9 7.9
OP (Paris) -2.4 -3.3 -3.8 -3.6 -3.8 -3.9 -4.2 -4.5 0.4 1.7 1.7
ORB (Bruxelles) 1.7 -0.1 -1.6 -2.7 -2.8 -2.9 -2.4 -1.2 0.4 3.0 3.1
PL (Warszawa) 4.0 -1.5 -8.2 -10.6 -12.0 -13.0 -11.0 -12.3 0.4 4.0 4.0
PTB (Braunschweig) -0.7 -1.5 -1.9 -2.2 -2.7 -3.0 -3.1 -3.1 0.2 1.3 1.3
ROA (San Fernando) -1.3 -2.5 -3.8 -4.5 -6.4 -7.9 -7.0 -7.1 0.4 1.9 1.9
SASO (Riyadh) -858.2 -870.7 -883.5 -894.7 -905.1 - -923.1 -930.9 0.7 3.1 3.2
SCL (Hong Kong) 114.7 112.3 - - 161.7 165.0 158.0 145.0 1.0 20.0 20.1
SG (Singapore) 9.9 20.5 -39.7 44.3 58.1 67.9 75.4 80.8 0.4 6.6 6.6 (3)
SIQ (Ljubljana) 495.3 486.7 467.0 486.7 468.1 465.4 474.5 476.5 0.4 7.5 7.5
SL (Colombo) 21.3 27.4 32.6 38.3 41.9 41.7 48.7 0.7 20.0 20.1 (4)
SMD (Bruxelles) -13.1 -13.4 -8.5 -4.9 -7.0 -1.3 -15.7 -21.1 0.4 3.1 3.1
SMU (Bratislava) -1701.5 -1701.3 -1709.7 -1707.5 -1717.3 -1743.7 -1745.4 -1763.6 1.5 12.3 12.4
SP (Boras) 0.1 -0.8 -1.4 -1.8 -2.5 -3.0 -3.3 -3.7 0.4 1.7 1.7
SU (Moskva) 0.4 -0.1 0.3 0.7 0.7 1.0 1.0 1.9 1.3 6.9 7.0
TL (Chung-Li) 0.1 -0.6 -0.9 -1.1 -1.0 -1.0 -1.0 -1.0 0.4 2.5 2.5
TP (Praha) -17.9 -19.7 -21.0 -31.1 -35.7 -37.4 -37.1 -34.8 0.4 6.7 6.7
UA (Kharkov) -10.2 -0.9 -13.4 -19.5 -6.8 -14.4 0.8 -13.7 1.5 9.0 9.1
UAE (Abu Dhabi) - - - - - - - -
UME (Gebze-Kocaeli) -299.2 -322.9 -334.7 -344.8 -357.5 -376.0 -382.7 -391.0 0.7 3.2 3.2
USNO (Washington DC) -0.5 -1.0 -1.7 -1.8 -1.7 -1.4 -1.8 -2.5 0.3 1.5 1.5
VMI (Ha Noi) -52.8 -77.5 42.3 -15.0 88.1 134.1 64.3 -174.6 3.0 3.5 4.6
VSL (Delft) 2.8 0.0 4.9 2.8 -8.8 -4.8 -0.2 -4.2 0.4 1.7 1.8
ZA (Pretoria) 3.2 2.4 2.2 2.7 1.7 -1.0 -1.2 0.8 0.4 4.3 4.4
- Notes on section 1:
(1) BOM : Time step of UTC(BOM) of -129 ns on MJD 58247.6.
(2) HKO : Time step of UTC(HKO) of +400 ns on MJD 58259.1.
(3) SG : Time step of UTC(SG) of +72.2ns on MJD 58241. Time step of UTC(SG) of -72.2ns on MJD 58245.
(4) SL : Measurement Units, Standards and Services Department (MUSSD), Colombo, Sri Lanka

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58234 - 58269 6.501x10-13 (2018 APR 26 - 2018 MAY 31)
New correction 58269 - 58299 6.501x10-13 (2018 MAY 31 - 2018 JUN 30)
New correction foreseen 58299 - 58329 6.501x10-13 (2018 JUN 30 - 2018 JUL 31)

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 58234 58269 -14.45 8.00 8.00 0.00 0.11 11.31 PFS/NA T148 8. Y (1)
PTB-CS2 58234 58269 -3.44 5.00 12.00 0.00 0.11 13.00 PFS/NA T148 12. Y (1)
SYRTE-FO1 58184 58199 -0.41 0.50 0.42 0.09 0.49 0.82 PFS/NA T301 0.37 Y (2)
SYRTE-FO1 58199 58214 -0.30 0.25 0.43 0.05 0.49 0.70 PFS/NA T301 0.37 Y (2)
SYRTE-FO1 58219 58234 -0.05 0.20 0.43 0.05 0.49 0.68 PFS/NA T301 0.37 Y (2)
SYRTE-FO1 58234 58269 0.44 0.25 0.41 0.06 0.23 0.53 PFS/NA T301 0.37 Y (2)
SYRTE-FO2 58234 58269 0.42 0.40 0.20 0.06 0.23 0.51 PFS/NA T301 0.23 Y (2)
SYRTE-FORb 58234 58269 0.50 0.25 0.24 0.06 0.23 0.42 0.6 [1] T328 0.34 Y (2)
PTB-CSF2 58234 58264 0.48 0.08 0.20 0.03 0.13 0.25 PFS/NA T287 0.41 Y (3)
SU-CsFO2 58234 58269 -0.98 0.31 0.24 0.14 0.74 0.85 PFS/NA T315 0.50 Y (4)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 04 JUN. 2018 by LNE-SYRTE
(3) Report 31 MAY. 2018 by PTB
(4) Report 01 JUN. 2018 by SU
[1] CCTF Recommendation 2 (2017) : Updates to the CIPM list of standard frequencies in Consultative
Committee for Time and Frequency Report of the 21st meeting (2017), 2017, 56 p.

Table 2: Estimate of d by the BIPM based on all PSFS measurements identified to be used for TAI steering
over the period MJD57874-58269, and corresponding uncertainties.

Period of estimation d u
58234-58269 0.32x10-15 0.19x10-15 (2018 APR 26 - 2018 MAY 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'= 6.7 ns

2018 0h UTC MJD C0'/ns N0 C1'/ns N1'
APR 26 58234 -3.1 89 9.9 82
APR 27 58235 -4.1 89 8.8 86
APR 28 58236 -3.4 90 8.0 83
APR 29 58237 -3.5 89 9.0 78
APR 30 58238 -3.9 88 9.9 79
MAY 1 58239 -4.1 89 9.1 58
MAY 2 58240 -4.1 90 8.5 90
MAY 3 58241 -3.8 88 8.3 82
MAY 4 58242 -4.0 89 8.0 83
MAY 5 58243 -4.6 89 8.4 88
MAY 6 58244 -5.0 90 9.0 81
MAY 7 58245 -5.6 89 8.6 84
MAY 8 58246 -5.8 89 8.5 87
MAY 9 58247 -5.0 89 9.0 85
MAY 10 58248 -4.1 90 9.1 90
MAY 11 58249 -3.6 89 8.9 79
MAY 12 58250 -5.0 89 9.2 81
MAY 13 58251 -5.2 89 10.7 88
MAY 14 58252 -4.2 90 12.0 89
MAY 15 58253 -4.5 89 10.8 80
MAY 16 58254 -4.9 89 8.8 89
MAY 17 58255 -5.1 89 9.5 87
MAY 18 58256 -5.3 85 9.7 85
MAY 19 58257 -4.1 83 7.9 86
MAY 20 58258 -4.8 89 8.8 86
MAY 21 58259 -5.5 89 11.9 89
MAY 22 58260 -4.7 90 12.4 76
MAY 23 58261 -4.6 89 10.8 84
MAY 24 58262 -5.4 89 10.3 89
MAY 25 58263 -4.6 89 11.2 87
MAY 26 58264 -3.7 90 11.2 90
MAY 27 58265 -4.9 89 10.3 82
MAY 28 58266 -5.9 89 10.2 88
MAY 29 58267 -6.0 89 10.2 86
MAY 30 58268 -6.0 90 11.1 85
MAY 31 58269 -6.1 89 13.2 80

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 3.7
BEV /PTB GPSPPP BE1_ /PT02 1012-2016 / 1001-2016 0.3 2.9 1.4
BIM /PTB NL
BIRM/PTB GPSPPP BI01 /PT02 1015-2016 / 1001-2016 0.4 2.8 1.2
BOM /PTB GPS MC MABM /PT10 2004-2014 / 1001-2016 1.5 8.0 3.9
BY /PTB GPS MC BY46 /PT10 NA / 1001-2016 1.5 9.6 6.6
CAO /PTB NL
CNES/PTB GPSPPP CS21 /PT02 1101-2016 / 1001-2016 0.3 4.4 1.5
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 1.8 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 2.9 1.5
DMDM/PTB GPSPPP ZM68 /PT02 1011-2016 / 1001-2016 0.3 2.9 1.4
DTAG/PTB GPSPPP DT04 /PT02 1015-2017 / 1001-2016 0.3 2.8 1.2
EIM /PTB NL
ESTC/PTB GPSPPP ES04 /PT02 1019-2016 / 1001-2016 0.3 2.8 1.2
HKO /PTB GPSPPP HKO2 /PT02 2002-2012 / 1001-2016 0.3 7.7 3.1
ICE /PTB GPS MC CE1_ /PT10 NC / 1001-2016 5.0 20.0
IFAG/PTB GPSPPP IF19 /PT02 NA_Al / 1001-2016 0.3 6.1 3.5 20.4 1805
IGNA/PTB GPS MC IG02 /PT10 NC / 1001-2016 2.5 20.0
IMBH/PTB GPSPPP BH01 /PT02 2004-2016 / 1001-2016 0.3 7.1 1.1
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 1.3
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
IPQ /PTB GPSPPP IP05 /PT02 NC / 1001-2016 0.4 20.0
JV /PTB GPS P3 JV01 /PT02 NC_Al / 1001-2016 0.7 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 2.8 1.2
KZ /PTB GPS MC KZ01 /PT10 2002-2008 / 1001-2016 1.5 9.6 6.6
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 4.4 1.7
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 8.2 4.3
NAO /PTB GPS MC NAT2 /PT10 NC / 1001-2016 2.0 20.0
NICT/PTB GPSPPP NC01 /PT02 1001-2016 / 1001-2016 0.3 2.3 1.5
NIM /PTB GPSPPP IM06 /PT02 1001-2016 / 1001-2016 0.3 2.1 1.4
NIMB/PTB GPSPPP MB02 /PT02 NA_Al / 1001-2016 0.3 7.3 2.1 32.2 1611
NIMT/PTB GPS MC MTTO /PT10 1013-2017 / 1001-2016 1.5 3.3 2.1
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 3.0 2.5
NMLS/PTB GPS MC LSM1 /PT10 1013-2017 / 1001-2016 1.5 3.3 2.1
NPL /PTB GPSPPP NPL2 /PT02 1014-2017 / 1001-2016 0.3 2.8 1.2
NPLI/PTB GPS P3 LI2P /PT02 2003-2017 / 1001-2016 0.7 7.1 1.2
NRC /PTB GPSPPP NRC4 /PT02 1017-2016 / 1001-2016 0.3 2.8 1.3
NRL /PTB NL
NTSC/PTB GPSPPP NTP3 /PT02 1001-2016 / 1001-2016 0.3 2.2 1.3
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 7.8 3.4 +5.6 1302
ORB /PTB GPSPPP OR1Z /PT02 1018-2017 / 1001-2016 0.3 2.8 1.2
PL /PTB GPSPPP PL_3 /PT02 1101-2013 / 1001-2016 0.3 3.8 2.8
SASO/PTB GPS P3 SAS0 /PT02 1020-2017 / 1001-2016 0.7 2.8 1.2
SCL /PTB GPS P3 SC05 /PT10 NC / 1001-2016 1.0 20.0
SG /PTB GPSPPP SG01 /PT02 NA_Al / 1001-2016 0.3 6.5 4.0 -114.2 1802
SIQ /PTB GPSPPP SI01 /PT02 2002-2014 / 1001-2016 0.3 7.4 2.3
SL /PTB GPS P3 SL01 /PT02 NC / 1001-2016 0.7 20.0
SMD /PTB GPSPPP SD01 /PT02 1014-2017 / 1001-2016 0.3 2.8 1.2
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 8.0 6.2 -7.8 1411
TL /PTB GPSPPP TLT1 /PT02 1001-2016 / 1001-2016 0.3 2.2 1.6
TP /PTB GPSPPP TP04 /PT02 1002-2009 / 1001-2016 0.3 6.6 4.3
UA /PTB GPS MC UA04 /PT10 2003-2011 / 1001-2016 1.5 8.9 5.5
UAE /PTB NL
UME /PTB GPS P3 UM01 /PT02 1011-2016 / 1001-2016 0.7 2.9 1.5
VMI /PTB GPS MC VM__ /PT10 1013-2017 / 1001-2016 3.0 3.3 2.1
ZA /PTB GPSPPP ZA02 /PT02 1102-2016 / 1001-2016 0.3 4.2 1.3
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
AOS /PTB TWGPPP AOS01 /PTB05 0449-2017 0.4 3.0 1.3
CH /PTB TWSTFT CH01 /PTB05 0284-2012 0.5 1.8 1.4
IT /PTB TWSTFT IT02 /PTB05 0434-2016 0.5 1.2 0.5
JATC/NTSC INT LK INTDLY 3001-2017 0.2 1.2 0.7
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.8 0.9
OP /PTB TWGPPP OP01 /PTB05 0437-2016 0.3 1.2 0.5
ROA /PTB TWGPPP ROA01 /PTB05 0440-2016 0.3 1.4 0.5
SP /PTB TWGPPP SP01 /PTB05 0441-2016 0.3 1.2 0.5
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.1 0.4
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.2 0.6