CIRCULAR T 367 ISSN 1143-1393
2018 AUGUST 10, 12h 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 JUN 30 JUL 5 JUL 10 JUL 15 JUL 20 JUL 25 JUL 30 Uncertainty/ns Notes
MJD 58299 58304 58309 58314 58319 58324 58329 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -0.3 0.4 0.7 1.6 2.3 2.5 2.2 0.5 3.2 3.3
APL (Laurel) -1.4 -1.6 -1.4 -0.9 2.6 3.3 3.8 0.4 11.0 11.0
AUS (Sydney) 3.5 2.6 -0.3 -1.8 -14.0 -15.3 -16.0 0.4 6.4 6.4
BEV (Wien) -7.5 -16.5 -17.3 -23.8 -23.1 -20.1 -24.2 0.4 3.1 3.2
BIM (Sofiya) - - - - - - -
BIRM (Beijing) 6.8 10.4 12.0 13.0 12.4 10.3 10.5 0.5 3.1 3.1
BOM (Skopje) -373.5 - - - - - -524.4 1.5 8.2 8.3
BY (Minsk) 0.6 0.6 1.4 1.4 1.4 2.5 2.9 1.5 12.2 12.3
CAO (Cagliari) - - -5349.0 -5441.6 -5540.4 -5642.4 -5733.8 1.5 20.0 20.1
CH (Bern-Wabern) -1.5 -1.4 -1.2 -1.1 0.7 1.7 0.9 0.4 2.2 2.2
CNES (Toulouse) -0.1 0.2 -1.2 -1.8 1.4 -4.7 0.8 0.4 4.6 4.6
CNM (Queretaro) -3.8 -6.8 1.8 2.5 7.3 6.3 -6.3 2.5 11.2 11.5
CNMP (Panama) 22.3 8.8 1.0 -10.9 -14.3 -8.1 -3.7 0.7 7.4 7.4
DFNT (Tunis) 31694.6 221.2 393.0 586.1 776.2 982.1 1178.1 0.7 20.0 20.1 (1)
DLR (Oberpfaffenhofen) - - - - - - -
DMDM (Belgrade) 2349.6 2415.7 2471.3 2533.0 - - 2.1 0.4 3.2 3.2
DTAG (Frankfurt/M) -46.5 -53.7 -56.6 -59.3 -58.4 -58.9 -57.7 0.7 3.1 3.1
EIM (Thessaloniki) - - - - - 15.7 14.6 3.0 11.3 11.7
ESTC (Noordwijk) -0.3 -0.7 -0.2 0.3 0.0 0.0 -0.4 0.4 3.1 3.1
HKO (Hong Kong) 53.1 68.8 81.1 90.0 102.1 110.0 128.1 0.4 7.8 7.8
ICE (San Jose) -65.7 -53.6 -51.3 -35.9 -26.8 -35.8 -47.8 5.0 20.0 20.7
IFAG (Wettzell) -932.3 -930.6 -930.5 -929.1 -931.3 -933.3 -946.9 0.4 5.2 5.2
IGNA (Buenos Aires) -52.5 -71.0 -83.3 -88.3 -114.8 - 4.2 2.5 20.0 20.2
IMBH (Sarajevo) 0.9 2.9 -3.6 4.7 1.6 -0.1 -0.3 0.4 7.2 7.2
INCP (Lima) 472.8 467.5 463.7 465.8 461.0 463.5 459.8 5.0 20.0 20.7
INM (Bogota D.C.) -21.8 -7.8 -18.5 -15.8 -12.5 -4.5 -3.9 2.0 20.0 20.1
INPL (Jerusalem) -62.0 -59.0 -61.5 -88.8 -118.8 -149.7 -185.4 0.4 7.2 7.2
INTI (Buenos Aires) -20.9 -23.5 - -23.7 -31.5 -18.9 -25.9 2.5 20.0 20.2
INXE (Rio de Janeiro) -10.9 -8.0 3.7 0.8 -11.3 -20.9 -25.1 0.4 20.0 20.0
IPQ (Caparica) -36.5 -35.3 -31.7 -37.4 -27.8 -29.0 -31.7 0.5 20.0 20.0
IT (Torino) 1.1 0.8 0.8 0.5 1.2 1.2 0.8 0.4 1.7 1.8
JATC (Lintong) 3.0 2.2 3.2 3.0 4.8 -0.4 -0.2 0.7 2.8 2.9
JV (Kjeller) -27.3 -35.1 -36.3 -21.5 -20.4 -20.4 -20.1 0.7 20.0 20.0
KEBS (Nairobi) - - - - - - -
KIM (Serpong-Tangerang) 583.0 611.8 618.4 648.2 630.8 629.6 665.2 2.0 20.0 20.1
KRIS (Daejeon) 6.1 8.0 9.8 12.1 14.5 17.1 20.2 0.4 3.0 3.0
KZ (Astana) -262.2 -238.1 -263.7 -277.7 -251.5 -246.8 -235.6 1.5 12.3 12.4
LT (Vilnius) 275.8 288.3 317.4 340.4 346.4 343.5 382.6 2.0 11.3 11.4
MASM (Bayanzurkh) -356.6 -363.2 -368.8 -372.7 -382.7 -392.3 -417.5 0.7 20.0 20.1
MBM (Podgorica) 71442.6 71782.4 72095.1 72405.2 72739.3 73082.4 - 1.5 20.0 20.1
MIKE (Espoo) 1.5 -7.3 -8.0 -8.1 -7.5 -7.5 -7.7 0.4 4.5 4.5 (2)
MKEH (Budapest) -2311.3 -2513.7 -2721.1 -2937.5 -3152.0 -3355.4 -3575.6 1.5 20.0 20.1
MSL (Lower Hutt) 409.2 396.3 392.0 398.6 411.0 390.0 402.5 1.5 20.0 20.1
MTC (Makkah) -26.0 -22.4 -26.0 -24.8 -26.7 -33.5 -33.6 0.4 7.7 7.7
NAO (Mizusawa) -90.1 -92.7 -101.7 -98.7 -104.3 -111.5 -117.1 2.0 20.0 20.1
NICT (Tokyo) 4.4 5.5 7.4 7.9 7.3 5.1 2.9 0.4 2.5 2.5
NIM (Beijing) 2.7 3.4 3.5 5.1 1.4 1.2 0.9 0.4 2.4 2.4
NIMB (Bucharest) 2623.8 2670.3 2716.7 2765.8 2815.8 2865.4 2913.6 0.4 7.4 7.4
NIMT (Pathumthani) -198.0 -209.7 -210.6 -204.9 -218.5 -219.8 -225.7 1.5 3.6 3.9
NIS (Cairo) -10.7 -0.6 26.8 27.7 18.7 14.5 2.6 1.6 20.0 20.1
NIST (Boulder) 1.5 1.1 0.3 0.0 -0.4 -0.9 -1.0 0.4 2.1 2.1
NMIJ (Tsukuba) -1.6 -2.2 -1.0 0.5 2.2 3.5 5.1 0.4 3.3 3.3
NMLS (Sepang) -1577.5 -1619.1 -1657.4 -1696.2 -1730.1 -1764.6 -1798.3 1.5 3.6 3.9
NPL (Teddington) 0.4 -0.8 -1.9 -2.9 -3.5 -3.9 -4.2 0.4 3.0 3.0
NPLI (New-Delhi) -4.5 -3.7 -2.5 -1.2 -2.0 -3.5 -2.6 0.4 7.2 7.2
NRC (Ottawa) 46.8 43.9 41.7 34.6 32.8 26.1 17.8 0.4 2.9 2.9
NRL (Washington DC) - - - - - - -
NTSC (Lintong) 3.5 2.5 2.3 2.2 3.4 3.8 3.0 0.7 2.4 2.6
ONBA (Buenos Aires) -2147.3 -2162.4 -2148.3 -2153.8 -2150.3 -2156.8 -2164.7 2.0 11.3 11.4
ONRJ (Rio de Janeiro) 4.6 -1.0 -6.9 -1.3 5.6 7.2 5.5 0.4 7.9 7.9
OP (Paris) -2.8 -2.4 -2.0 -1.6 -1.5 -1.9 -1.9 0.4 1.7 1.7
ORB (Bruxelles) 2.0 3.8 4.3 3.5 2.6 1.8 1.6 0.4 3.0 3.1
PL (Warszawa) -20.9 -18.3 -17.5 0.8 37.6 45.6 29.0 1.5 5.2 5.4
PTB (Braunschweig) -1.4 -1.8 -2.2 -1.9 -1.5 -1.3 -1.2 0.2 1.2 1.3
ROA (San Fernando) -3.2 -2.9 -2.8 -2.9 -2.6 -2.9 -3.1 0.4 1.9 2.0
SASO (Riyadh) -969.6 -983.7 -998.0 -1011.9 -1027.8 -1045.1 -1053.6 0.5 3.1 3.1
SCL (Hong Kong) 88.2 - - - - 6.8 15.2 1.0 20.0 20.1
SG (Singapore) 140.6 158.3 165.5 173.5 175.1 164.0 151.1 0.4 6.6 6.6
SIQ (Ljubljana) 425.8 437.5 423.1 397.3 411.0 418.1 411.9 0.4 7.5 7.5
SL (Colombo) 5.0 2.9 13.6 19.9 -8.8 -15.8 - 0.7 20.0 20.1 (3)
SMD (Bruxelles) -15.3 -9.4 -16.2 -5.9 -10.3 -14.2 -12.5 0.4 3.1 3.1
SMU (Bratislava) -1827.4 -1826.3 -1841.4 -1851.4 -1868.8 -1865.4 -1864.7 1.5 12.3 12.4
SP (Boras) -3.8 -3.2 -3.7 -3.8 -3.8 -3.4 -3.2 0.4 1.7 1.7
SU (Moskva) 2.5 1.9 0.5 -0.2 -1.1 -0.3 0.6 1.3 6.9 7.0
TL (Chung-Li) 3.8 5.1 5.6 5.3 4.7 3.7 2.9 0.4 2.5 2.5
TP (Praha) 25.7 23.0 20.1 11.3 0.2 -7.8 -4.9 0.4 6.7 6.7
UA (Kharkov) 2.3 5.5 4.5 4.7 3.5 9.5 5.1 1.5 9.1 9.2
UAE (Abu Dhabi) - - - - - - -
UME (Gebze-Kocaeli) -496.6 -512.0 -518.4 -527.8 -546.7 -569.0 -580.4 0.7 3.2 3.3
USNO (Washington DC) 0.8 0.9 0.8 0.9 0.9 0.9 0.1 0.3 1.5 1.5
VMI (Ha Noi) 159.6 145.6 78.4 33.2 9.2 22.1 25.6 3.0 3.6 4.7
VSL (Delft) 4.3 3.4 1.3 2.8 -4.6 -6.1 4.2 0.4 1.8 1.8
ZA (Pretoria) 4.5 5.6 4.7 5.6 6.9 6.5 4.8 0.4 4.3 4.4
- Notes on section 1:
(1) DFNT : Apparent time step of UTC(DFNT) of about +31650 ns near MJD 58301.3.
(2) MIKE : Apparent time step of UTC(MIKE) of +8.2 ns between MJD 58299 and MJD 58304 due to antenna coordinates correction.
(3) SL : Apparent time step of UTC(SL) of about +40 ns near MJD 58318.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58299 - 58329 6.501x10-13 (2018 JUN 30 - 2018 JUL 30)
New correction 58329 - 58359 6.501x10-13 (2018 JUL 30 - 2018 AUG 29)
New correction foreseen 58359 - 58389 6.501x10-13 (2018 AUG 29 - 2018 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) Steer Note
Estimation
PTB-CS1 58299 58329 -1.03 8.00 8.00 0.00 0.13 11.31 PFS/NA T148 8. Y (1)
PTB-CS2 58299 58329 -5.28 5.00 12.00 0.00 0.13 13.00 PFS/NA T148 12. Y (1)
SYRTE-FO1 58299 58329 0.56 0.25 0.34 0.06 0.26 0.50 PFS/NA T301 0.37 Y (2)
SYRTE-FO2 58314 58329 0.30 0.30 0.23 0.07 0.49 0.62 PFS/NA T301 0.23 Y (2)
PTB-CSF2 58294 58314 1.15 0.10 0.21 0.09 0.19 0.31 PFS/NA T287 0.41 Y (3)
SU-CsFO2 58299 58329 0.24 0.28 0.24 0.13 0.85 0.93 PFS/NA T315 0.50 Y (4)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 02 AUG. 2018 by LNE-SYRTE
(3) Report 17 JUL. 2018 by PTB
(4) Report 03 AUG. 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 MJD57939-58329, and corresponding uncertainties.

Period of estimation d u
58299-58329 0.63x10-15 0.25x10-15 (2018 JUN 30 - 2018 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] = 37 s + C0'
[UTC-UTC(SU)_GLONASS]= C1', [TAI-UTC(SU)_GLONASS]= 37 s + C1'

For this edition of Circular T, σ0'= 1.0 ns, σ1'= 6.6 ns

2018 0h UTC MJD C0'/ns N0 C1'/ns N1'
JUN 30 58299 -2.7 89 14.4 87
JUL 1 58300 -2.1 90 16.4 88
JUL 2 58301 -2.9 89 16.1 80
JUL 3 58302 -3.1 89 17.1 87
JUL 4 58303 -3.6 89 16.5 87
JUL 5 58304 -4.4 90 14.3 90
JUL 6 58305 -3.6 89 13.2 83
JUL 7 58306 -3.9 89 12.8 86
JUL 8 58307 -3.1 89 14.2 86
JUL 9 58308 -2.4 90 15.1 88
JUL 10 58309 -2.1 89 14.1 79
JUL 11 58310 -2.5 89 14.0 89
JUL 12 58311 -2.9 89 14.4 86
JUL 13 58312 -3.9 90 12.1 88
JUL 14 58313 -2.3 89 11.7 85
JUL 15 58314 -3.7 89 12.4 87
JUL 16 58315 -4.4 89 12.3 84
JUL 17 58316 -3.0 87 13.8 87
JUL 18 58317 -1.4 89 13.3 78
JUL 19 58318 -3.5 89 11.9 76
JUL 20 58319 -1.6 89 10.1 89
JUL 21 58320 -1.6 90 9.7 88
JUL 22 58321 -2.5 89 10.7 81
JUL 23 58322 -4.1 89 11.6 86
JUL 24 58323 -3.4 88 10.9 88
JUL 25 58324 -2.6 90 10.4 88
JUL 26 58325 -2.8 89 10.9 74
JUL 27 58326 -2.6 89 12.4 85
JUL 28 58327 -3.6 89 13.0 88
JUL 29 58328 -3.1 89 11.6 89
JUL 30 58329 -3.4 89 9.9 89

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 6.3 3.8
BEV /PTB GPSPPP BE1_ /PT02 1012-2016 / 1001-2016 0.3 2.9 1.5
BIM /PTB NL
BIRM/PTB GPSPPP BI01 /PT02 1015-2016 / 1001-2016 0.4 2.8 1.3
BOM /PTB GPS MC MABM /PT10 2004-2014 / 1001-2016 1.5 8.1 4.0
BY /PTB GPS MC BY46 /PT10 NA / 1001-2016 1.5 12.2 10.0
CAO /PTB GPS MC CA__ /PT10 NC / 1001-2016 1.5 20.0
CNES/PTB GPSPPP CS21 /PT02 1101-2016 / 1001-2016 0.3 4.4 1.6
CNM /PTB GPS MC CN00 /PT10 NA_Al / 1001-2016 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPS P3 MP1_ /PT02 NA_Al / 1001-2016 0.7 7.3 1.9 41.7 1807
DFNT/PTB GPS P3 DN__ /PT02 NC_Al / 1001-2016 0.7 20.0 10.3 1507
DLR /PTB NL
DMDM/PTB GPSPPP ZM68 /PT02 1011-2016 / 1001-2016 0.3 2.9 1.5
DTAG/PTB GPS P3 DT05 /PT02 1015-2017 / 1001-2016 0.7 2.8 1.3
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 2.8 1.3
HKO /PTB GPSPPP HKO2 /PT02 2002-2012 / 1001-2016 0.3 7.7 3.2
ICE /PTB GPS MC CE1_ /PT10 NC / 1001-2016 5.0 20.0
IFAG/PTB GPSPPP IF19 /PT02 1016-2017 / 1001-2016 0.3 5.0 0.5
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 1.2
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 1.4
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 1.3
KZ /PTB GPS MC KZ01 /PT10 2002-2008 / 1001-2016 1.5 12.2 10.0
LT /PTB GPS MC LT01 /PT10 1007-2006 / 1001-2016 2.0 11.2 10.0
MASM/PTB GPS P3 MN__ /PT02 NC / 1001-2016 0.7 20.0
MBM /PTB GPS MC MEBM /PT10 NC / 1001-2016 1.5 20.0
MIKE/PTB GPSPPP MI04 /PT02 1102-2015 / 1001-2016 0.3 4.4 1.8
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 GPSPPP MC02 /PT02 NA_Al / 1001-2016 0.3 7.6 2.9 32.6 1503
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 1.6
NIM /PTB GPSPPP IM06 /PT02 1001-2016 / 1001-2016 0.3 2.1 1.5
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 3.4 2.2
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 3.1 2.6
NMLS/PTB GPS MC LSM1 /PT10 1013-2017 / 1001-2016 1.5 3.4 2.2
NPL /PTB GPSPPP NPL2 /PT02 1014-2017 / 1001-2016 0.3 2.8 1.3
NPLI/PTB GPSPPP LI2P /PT02 2003-2017 / 1001-2016 0.3 7.1 1.3
NRC /PTB GPSPPP NRC4 /PT02 1019-2017 / 1001-2016 0.3 2.6 0.6
NRL /PTB NL
NTSC/PTB GPS P3 NTP1 /PT02 1001-2016 / 1001-2016 0.7 2.2 1.4
ONBA/PTB GPS MC ON__ /PT10 1002-2004 / 1001-2016 2.0 11.2 10.0
ONRJ/PTB GPSPPP RJ01 /PT02 NA_Al / 1001-2016 0.3 7.8 3.4 +5.6 1302
ORB /PTB GPSPPP OR1Z /PT02 1018-2017 / 1001-2016 0.3 2.8 1.3
PL /PTB GPS MC PL_3 /PT10 NA_Al / 1001-2016 1.5 5.1 4.5 3.1 1807
SASO/PTB GPSPPP SAS0 /PT02 1020-2017 / 1001-2016 0.4 2.8 1.3
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 2.4
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 1.3
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 6.3 -7.8 1411
TL /PTB GPSPPP TLT1 /PT02 1001-2016 / 1001-2016 0.3 2.2 1.7
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 9.0 5.6
UAE /PTB NL
UME /PTB GPS P3 UM01 /PT02 1011-2016 / 1001-2016 0.7 3.0 1.6
VMI /PTB GPS MC VM__ /PT10 1013-2017 / 1001-2016 3.0 3.4 2.2
ZA /PTB GPSPPP ZA02 /PT02 1102-2016 / 1001-2016 0.3 4.2 1.4
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 TWGPPP CH01 /PTB05 0284-2012 0.3 1.8 1.5
IT /PTB TWGPPP IT02 /PTB05 0434-2016 0.3 1.2 0.6
JATC/NTSC INT LK INTDLY 3001-2017 0.2 1.4 1.0
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.8 0.9
OP /PTB TWGPPP OP01 /PTB05 0437-2016 0.3 1.2 0.6
ROA /PTB TWGPPP ROA01 /PTB05 0440-2016 0.3 1.5 0.6
SP /PTB TWGPPP SP01 /PTB05 0441-2016 0.3 1.2 0.6
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.1 0.4
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.3 0.7