CIRCULAR T 376 ISSN 1143-1393
2019 MAY 10, 09h 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 ftp://ftp2.bipm.org/pub/tai/publication/notes/explanatory_supplement_v0.2.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 2019 0h UTC MAR 27 APR 1 APR 6 APR 11 APR 16 APR 21 APR 26 Uncertainty/ns Notes
MJD 58569 58574 58579 58584 58589 58594 58599 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -1.9 -2.2 -2.7 -2.0 -2.7 -2.4 -4.3 0.7 7.6 7.7
APL (Laurel) 0.0 -0.8 0.4 1.4 3.5 6.4 3.2 0.4 11.2 11.2
AUS (Sydney) -132.5 -138.0 -140.3 -135.1 -139.9 -152.1 -155.9 0.4 6.4 6.4
BEV (Wien) 3.8 -3.3 -15.0 -24.9 -35.2 -47.7 -60.1 0.4 3.1 3.2
BIM (Sofiya) - - - - - - -
BIRM (Beijing) 7.4 3.0 0.5 1.4 3.3 4.4 6.7 0.7 3.1 3.2
BOM (Skopje) -1819.6 -1842.1 -1860.9 -1883.4 -1905.8 - -2029.5 1.5 8.3 8.5
BY (Minsk) 1.5 1.8 1.4 0.6 0.2 0.1 0.4 1.5 12.2 12.3
CAO (Cagliari) -10613.4 -10720.3 -10825.8 - - - - 1.5 20.0 20.1
CH (Bern-Wabern) -14.0 -11.7 -10.0 -8.6 -10.4 -9.3 -8.7 0.5 1.9 2.0
CNES (Toulouse) 3.1 -0.7 -4.1 -6.8 -6.3 -7.1 -1.9 0.4 4.5 4.5
CNM (Queretaro) -2.2 -4.3 -0.3 8.3 5.6 3.2 -0.5 2.5 11.2 11.5
CNMP (Panama) -0.1 -11.6 -1.7 0.4 14.6 14.4 17.3 0.5 7.4 7.4
DFNT (Tunis) 5117.4 5305.3 5480.9 5670.7 5883.0 6119.2 6314.1 0.7 20.0 20.0
DLR (Oberpfaffenhofen) - 626.2 627.3 637.9 648.6 665.1 674.8 0.7 3.2 3.3
DMDM (Belgrade) 19.1 15.4 11.2 14.1 6.8 5.8 6.7 0.4 3.1 3.2
DTAG (Frankfurt/M) -187.9 -189.7 -184.6 -182.5 -185.8 - -182.7 0.4 2.8 2.9
EIM (Thessaloniki) 2.3 5.4 6.7 1.8 11.1 1.0 2.8 3.0 11.2 11.6
ESTC (Noordwijk) 0.7 0.0 -0.3 0.1 0.3 0.2 -1.0 0.4 2.9 2.9
HKO (Hong Kong) -28.6 -26.5 -31.5 -28.5 -19.8 -19.5 -17.5 0.4 7.8 7.8
ICE (San Jose) 57.5 49.4 51.3 41.2 36.7 34.1 44.6 5.0 20.0 20.6
IFAG (Wettzell) -996.2 -985.7 -969.9 -957.7 -943.0 -926.9 -902.8 0.4 5.1 5.1
IGNA (Buenos Aires) 6.2 1.3 5.0 9.2 6.2 4.5 7.8 0.4 20.0 20.0
IMBH (Sarajevo) 0.1 -4.7 -1.1 2.9 0.8 -2.9 3.1 0.7 7.2 7.3
INCP (Lima) 659.3 754.0 856.8 961.0 1069.3 34.9 - 5.0 20.0 20.6 (1)
INM (Bogota D.C.) -6.3 -12.0 -5.4 -8.5 -12.2 -7.7 -2.5 2.0 20.0 20.1
INPL (Jerusalem) -136.3 -131.8 -139.2 -142.2 -143.4 -142.9 -141.7 0.4 7.2 7.2
INTI (Buenos Aires) -71.5 -74.9 -80.3 -68.6 -67.5 -64.4 -64.8 2.5 20.0 20.2
INXE (Rio de Janeiro) -3.2 -7.8 -13.5 -26.3 -12.1 -22.5 -24.1 0.4 20.0 20.0
IPQ (Caparica) -323.2 -211.7 -136.2 -219.9 -277.9 -178.6 -77.7 0.5 20.0 20.0
IT (Torino) 0.6 1.1 0.4 0.1 -1.1 -2.3 -3.7 0.5 1.4 1.5
JATC (Lintong) 1.6 0.8 0.0 0.7 0.1 -0.1 -0.9 0.4 2.5 2.6
JV (Kjeller) 78.9 81.5 74.3 51.2 46.1 44.0 43.9 0.4 4.1 4.1
KEBS (Nairobi) - - - - - - -
KIM (Serpong-Tangerang) - - - - - - -
KRIS (Daejeon) 8.5 7.4 4.1 3.4 4.4 6.0 7.3 0.4 2.9 2.9
KZ (Astana) - - - - - - -
LRTE (Sao Carlos) 6.1 12.2 - 18.6 31.9 36.0 32.2 0.4 20.0 20.0
LT (Vilnius) 682.2 692.7 716.6 724.1 713.0 717.1 695.9 0.4 2.6 2.6
LUX (Belvaux) 8.5 15.9 11.8 13.0 10.3 2.1 3.8 0.4 2.7 2.8
MASM (Bayanzurkh) -401.1 -475.8 -97.3 -118.6 -135.6 -160.3 -10.5 0.7 20.0 20.0 (2)
MBM (Podgorica) - - - - - - -
MIKE (Espoo) -3.2 -3.7 -3.8 -3.5 -3.6 -3.4 -3.3 0.4 4.5 4.5
MKEH (Budapest) -9174.1 -9394.6 -9619.2 -9822.4 -10038.3 -10268.7 16.3 1.5 20.0 20.1 (3)
MSL (Lower Hutt) 410.5 413.1 424.8 435.0 400.7 377.8 351.7 1.5 20.0 20.1
MTC (Makkah) - - - - - - -
NAO (Mizusawa) -499.3 -506.1 -512.5 -519.4 -532.0 -543.5 -550.5 2.0 19.9 20.0
NICT (Tokyo) -5.0 -5.5 -5.5 -4.6 -3.1 -1.9 -1.0 0.4 1.6 1.6
NIM (Beijing) 0.5 0.1 0.7 1.6 2.0 2.2 2.7 0.4 1.6 1.6
NIMB (Bucharest) 5209.3 5251.2 5297.3 5342.2 5390.9 5445.5 5481.3 0.5 7.4 7.4
NIMT (Pathumthani) -97.0 -89.8 -88.3 -90.5 -86.2 -78.6 -76.0 1.5 3.6 3.9
NIS (Cairo) -2.2 12.4 21.0 33.3 35.3 32.6 28.6 1.6 20.0 20.1
NIST (Boulder) -1.9 -0.9 -0.3 0.4 0.6 0.7 0.4 0.4 1.9 1.9
NMIJ (Tsukuba) -1.8 -3.1 -3.2 -2.7 -0.7 1.0 2.7 0.4 3.3 3.3
NMLS (Sepang) - - - - - 0.3 -33.8 1.5 3.6 3.9
NPL (Teddington) -3.1 -3.6 -3.7 -3.4 -3.7 -3.5 -3.0 0.5 3.2 3.2
NPLI (New-Delhi) 5.7 4.1 3.7 4.9 7.1 8.3 11.6 0.4 2.6 2.7
NRC (Ottawa) 8.8 9.6 2.2 4.1 3.6 4.2 4.3 0.4 2.8 2.9
NRL (Washington DC) 5.7 -3.3 -8.8 4.0 16.8 9.5 4.5 0.4 20.0 20.0
NTSC (Lintong) 0.2 -0.2 -0.9 1.0 -0.7 -0.5 -1.8 0.4 2.4 2.4
ONBA (Buenos Aires) -23.4 -17.2 -10.0 -4.8 13.6 -8.8 2.5 2.0 11.2 11.4
ONRJ (Rio de Janeiro) 12.1 4.1 0.7 -2.9 -0.8 1.0 -0.7 6.5 20.0 21.0
OP (Paris) -0.2 0.4 0.3 0.2 0.2 0.6 0.9 0.4 1.3 1.4
ORB (Bruxelles) 2.8 1.4 0.6 0.9 1.2 2.1 2.7 0.4 2.9 2.9
PL (Warszawa) 9.4 12.4 12.5 11.4 9.3 7.3 4.2 0.4 2.7 2.8
PTB (Braunschweig) 1.3 1.6 1.5 1.4 1.5 1.8 1.1 0.2 0.5 0.6
ROA (San Fernando) -4.3 -3.8 -3.7 -3.5 -2.5 -2.0 -1.5 0.4 1.7 1.7
SASO (Riyadh) -294.0 -307.6 -320.1 -329.9 -331.9 -353.7 -369.3 0.5 2.7 2.8
SCL (Hong Kong) -86.3 -74.1 -61.1 -66.8 -106.9 -106.8 -113.2 1.0 20.0 20.0
SG (Singapore) 8.0 5.6 2.2 -1.1 0.9 5.5 12.1 0.4 6.6 6.6
SIQ (Ljubljana) 262.7 265.1 257.1 - 238.6 259.3 265.4 0.4 7.5 7.5
SL (Colombo) 27.6 23.1 21.2 17.8 22.0 - 28.3 0.4 20.0 20.0
SMD (Bruxelles) -6.3 -8.4 -10.7 -4.5 -17.7 -7.2 -5.6 0.4 2.9 3.0
SMU (Bratislava) -585.0 -543.0 -499.9 -461.0 -415.3 -355.7 -306.3 1.5 12.2 12.3
SP (Boras) -0.1 0.8 0.8 1.7 1.3 1.5 1.1 0.4 1.3 1.4
SU (Moskva) -0.1 -0.1 0.0 -0.2 0.5 0.6 1.1 1.3 1.6 2.1
TL (Chung-Li) -0.6 -0.5 0.3 1.4 1.3 1.1 0.8 0.4 1.6 1.7
TP (Praha) -7.9 -10.0 -12.5 -15.3 -24.0 -19.1 -21.8 0.4 11.2 11.2
UA (Kharkov) -1.3 -7.0 -1.8 -3.6 9.1 2.5 8.8 1.5 9.2 9.3
UAE (Abu Dhabi) 20.2 9.4 0.1 13.5 23.3 20.0 12.5 4.0 8.6 9.5
UME (Gebze-Kocaeli) 25.6 26.9 24.6 28.1 24.9 24.6 39.7 1.5 8.7 8.8
USNO (Washington DC) -1.1 0.1 0.3 0.1 -0.1 0.4 0.7 0.3 1.0 1.0
VMI (Ha Noi) -6.1 -10.7 -16.5 -15.2 -6.6 2.2 9.1 2.0 3.5 4.1
VSL (Delft) 4.0 2.7 6.8 9.4 1.6 -4.5 -3.3 0.4 1.5 1.5
ZA (Pretoria) -3.4 -4.3 -7.1 -5.9 -1.9 1.1 2.2 0.4 2.6 2.6
- Notes on section 1:
(1) INCP : Apparent time step of UTC(INCP) of about 1150 ns on MJD 58590.93.
(2) MASM : Time steps of UTC(MASM) of -450 ns on MJD 58575.13 and -190 ns near MJD 58597.2.
(3) MKEH : Time step of UTC(MKEH) of about -10360 ns near MJD 58596 due to change of master clock.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58569 - 58599 6.499x10-13 (2019 MAR 27 - 2019 APR 26)
New correction 58599 - 58634 6.497x10-13 (2019 APR 26 - 2019 MAY 31)
New correction foreseen 58634 - 58664 6.497x10-13 (2019 MAY 31 - 2019 JUN 30)

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 58569 58599 -9.30 8.00 8.00 0.00 0.13 11.31 PFS/NA T148 8. Y (1)
PTB-CS2 58569 58599 -0.23 5.00 12.00 0.00 0.13 13.00 PFS/NA T148 12. Y (1)
NIM5 58544 58569 -0.14 0.20 0.90 0.20 0.31 0.99 PFS/NA T340 1.40 Y (2)
SYRTE-FO1 58569 58599 0.08 0.20 0.31 0.05 0.26 0.45 PFS/NA T301 0.37 Y (3)
SYRTE-FO2 58569 58599 0.44 0.25 0.21 0.05 0.26 0.42 PFS/NA T301 0.23 Y (3)
SYRTE-FOM 58569 58599 0.23 0.20 0.65 0.06 0.26 0.73 PFS/NA T372 0.70 Y (3)
SYRTE-FORb 58569 58599 0.38 0.20 0.25 0.06 0.26 0.42 0.6 [?] T328 0.34 Y (3)
PTB-CSF2 58569 58599 0.44 0.09 0.17 0.05 0.13 0.24 PFS/NA T370 0.17 Y (4)
SU-CsFO2 58569 58599 1.07 0.22 0.24 0.11 0.85 0.92 PFS/NA T315 0.50 Y (5)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 07 MAY. 2019 by NIM
(3) Report 29 APR. 2019 by LNE-SYRTE
(4) Report 30 APR. 2019 by PTB
(5) Report 30 APR. 2019 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 MJD58209-58599, and corresponding uncertainties.

Period of estimation d u
58569-58599 0.40x10-15 0.17x10-15 (2019 MAR 27 - 2019 APR 26)

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'= 0.8 ns, σ1'= 6.7 ns

2019 0h UTC MJD C0'/ns N0 C1'/ns N1'
MAR 27 58569 -4.8 89 10.1 80
MAR 28 58570 -0.6 72 10.3 88
MAR 29 58571 4.2 90 9.8 89
MAR 30 58572 3.4 89 8.7 77
MAR 31 58573 3.5 89 11.0 86
APR 1 58574 2.3 89 11.7 80
APR 2 58575 1.9 90 8.0 60
APR 3 58576 2.9 86 7.0 78
APR 4 58577 3.1 88 8.1 77
APR 5 58578 3.2 87 6.8 86
APR 6 58579 5.3 90 7.2 83
APR 7 58580 2.7 89 9.1 79
APR 8 58581 1.7 89 10.6 80
APR 9 58582 3.2 86 10.8 86
APR 10 58583 2.2 77 10.2 84
APR 11 58584 3.6 89 13.9 81
APR 12 58585 2.9 89 18.2 77
APR 13 58586 2.5 89 17.6 86
APR 14 58587 1.5 90 17.8 90
APR 15 58588 0.6 89 20.5 85
APR 16 58589 1.2 89 24.7 85
APR 17 58590 3.2 89 27.4 89
APR 18 58591 4.9 90 25.3 88
APR 19 58592 4.2 88 21.7 85
APR 20 58593 3.5 89 20.0 82
APR 21 58594 3.8 89 18.4 89
APR 22 58595 1.8 90 17.8 90
APR 23 58596 1.9 89 17.2 76
APR 24 58597 4.4 89 17.3 81
APR 25 58598 2.5 77 18.5 88
APR 26 58599 1.9 90 18.0 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
AOS /PTB GPS P3 AO_3 /PT10 NA_Al / 1001-2018 0.7 7.6 2.7 +13.9 1512
APL /PTB GPSPPP AP02 /PT10 NA_Al / 1001-2018 0.3 11.2 10.0
AUS /PTB GPSPPP AU01 /PT10 1002-2010 / 1001-2018 0.3 6.4 4.0
BEV /PTB GPSPPP BE1_ /PT10 1012-2016 / 1001-2018 0.3 3.1 1.9
BIM /PTB NL
BIRM/PTB GPS P3 BI01 /PT10 1015-2016 / 1001-2018 0.7 3.1 1.8
BOM /PTB GPS MC MABM /PT10 2004-2014 / 1001-2018 1.5 8.3 4.4
BY /PTB GPS MC BY46 /PT10 NA / 1001-2018 1.5 12.2 10.0
CAO /PTB GPS MC CA__ /PT10 NC / 1001-2018 1.5 20.0
CNES/PTB GPSPPP CS21 /PT10 1101-2016 / 1001-2018 0.3 4.5 2.0
CNM /PTB GPS MC CN00 /PT10 NA_Al / 1001-2018 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPSPPP MP1_ /PT10 NA_Al / 1001-2018 0.5 7.4 2.3 41.7 1607
DFNT/PTB GPS P3 DN__ /PT10 NC_Al / 1001-2018 0.7 20.0 10.3 1507
DLR /PTB GPS P3 DL05 /PT10 1012-2016 / 1001-2018 0.7 3.2 2.0
DMDM/PTB GPSPPP ZM68 /PT10 1011-2016 / 1001-2018 0.3 3.1 1.9
DTAG/PTB GPSPPP DT05 /PT10 1015-2017 / 1001-2018 0.3 2.8 1.3
EIM /PTB GPS MC EI__ /PT10 1011-2007 / 1001-2018 3.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT10 1019-2016 / 1001-2018 0.3 2.9 1.5
HKO /PTB GPSPPP HKO2 /PT10 2002-2012 / 1001-2018 0.3 7.8 3.4
ICE /PTB GPS MC CE1_ /PT10 NC / 1001-2018 5.0 20.0
IFAG/PTB GPSPPP IF19 /PT10 1016-2017 / 1001-2018 0.3 5.1 1.1
IGNA/PTB GPSPPP IG02 /PT10 NC_Al / 1001-2018 0.3 20.0 -42.3 1904
IMBH/PTB GPS P3 BH01 /PT10 2004-2016 / 1001-2018 0.7 7.2 1.7
INCP/PTB GPS MC CP__ /PT10 NC / 1001-2018 5.0 20.0
INM /PTB GPS MC IC__ /PT10 NC / 1001-2018 2.0 20.0
INPL/PTB GPSPPP IL05 /PT10 2002-2016 / 1001-2018 0.3 7.2 1.8
INTI/PTB GPS MC IN__ /PT10 NC / 1001-2018 2.5 20.0
INXE/PTB GPSPPP NXRA /PT10 NC / 1001-2018 0.3 20.0
IPQ /PTB GPSPPP IP05 /PT10 NC / 1001-2018 0.4 20.0
JATC/PTB GPSPPP JA01 /PT10 1201-2018 / 1001-2018 0.3 2.5 0.5
JV /PTB GPSPPP JV02 /PT10 1101-2017 / 1001-2018 0.3 4.1 1.1
KEBS/PTB NL
KIM /PTB NL
KRIS/PTB GPSPPP KRG1 /PT10 1017-2017 / 1001-2018 0.3 2.9 1.5
KZ /PTB NL
LRTE/PTB GPSPPP LRRC /PT10 NC / 1001-2018 0.3 20.0
LT /PTB GPSPPP LT02 /PT10 1014-2018 / 1001-2018 0.3 2.5 0.5
LUX /PTB GPSPPP LU01 /PT10 1012-2018 / 1001-2018 0.3 2.7 0.9
MASM/PTB GPS P3 MN__ /PT10 NC / 1001-2018 0.7 20.0
MBM /PTB NL
MIKE/PTB GPSPPP MI04 /PT10 1102-2015 / 1001-2018 0.3 4.6 2.2
MKEH/PTB GPS MC MK01 /PT10 NC / 1001-2018 1.5 20.0
MSL /PTB GPS P3 MS0_ /PT10 NC / 1001-2018 1.5 20.0
MTC /PTB NL
NAO /PTB GPS MC NAT2 /PT10 NC / 1001-2018 2.0 20.0
NICT/PTB GPSPPP NC4S /PT10 1001-2018 / 1001-2018 0.3 1.6 0.6
NIM /PTB GPSPPP IM06 /PT10 1001-2018 / 1001-2018 0.3 1.6 0.5
NIMB/PTB GPSPPP MB02 /PT10 NA_Al / 1001-2018 0.4 7.4 2.5 32.2 1611
NIMT/PTB GPS MC MTTO /PT10 1013-2017 / 1001-2018 1.5 3.6 2.6
NIS /PTB GPS P3 IS__ /PT10 NC_Al / 1001-2018 1.6 20.0 +16.4 1303
NMIJ/PTB GPSPPP NM0D /PT10 NA_Al / 1001-2018 0.3 3.3 2.9
NMLS/PTB GPS MC LSM1 /PT10 1013-2017 / 1001-2018 1.5 3.6 2.5
NPLI/PTB GPSPPP LI2P /PT10 1013-2018 / 1001-2018 0.3 2.6 0.8
NRC /PTB GPSPPP NRC4 /PT10 1019-2017 / 1001-2018 0.3 2.8 1.2
NRL /PTB GPSPPP RL2_ /PT10 NC / 1001-2018 0.3 20.0
NTSC/PTB GPSPPP NTP1 /PT10 1001-2016 / 1001-2018 0.3 2.5 1.9
ONBA/PTB GPS MC ON__ /PT10 1002-2004 / 1001-2018 2.0 11.2 10.0
ONRJ/PTB GPS P3 RJ02 /PT10 NA / 1001-2018 6.5 20.0 3.7
ORB /PTB GPSPPP OR1Z /PT10 1018-2017 / 1001-2018 0.3 2.9 1.5
PL /PTB GPSPPP PL_9 /PT10 NA_Al / 1001-2018 0.3 2.7 0.5 -249.4 1904
SASO/PTB GPSPPP SAS0 /PT10 1020-2017 / 1001-2018 0.4 2.7 1.1
SCL /PTB GPS P3 SC05 /PT10 NC / 1001-2018 1.0 20.0
SG /PTB GPSPPP SG01 /PT10 NA_Al / 1001-2018 0.3 6.6 4.2 -114.2 1802
SIQ /PTB GPSPPP SI01 /PT10 2002-2014 / 1001-2018 0.3 7.5 2.7
SL /PTB GPSPPP SL01 /PT10 NC / 1001-2018 0.3 20.0
SMD /PTB GPSPPP SD01 /PT10 1014-2017 / 1001-2018 0.3 2.9 1.5
SMU /PTB GPS MC SM00 /PT10 NA_Al / 1001-2018 1.5 12.2 10.0 57.8 0908
SU /PTB GPS MC SU19 /PT10 1001-2018 / 1001-2018 1.5 1.8 1.3
TL /PTB GPSPPP TLT1 /PT10 1001-2018 / 1001-2018 0.3 1.6 0.7
TP /PTB GPSPPP TP04 /PT10 1002-2009 / 1001-2018 0.3 11.2 10.0
UA /PTB GPS MC UA04 /PT10 2003-2011 / 1001-2018 1.5 9.2 5.9
UAE /PTB GPS MC AE__ /PT10 2001-2016 / 1001-2018 4.0 8.6 5.0
UME /PTB GPS MC UM01 /PT10 NA / 1001-2018 1.5 8.7 5.2
VMI /PTB GPS MC VM__ /PT10 1013-2017 / 1001-2018 2.0 3.5 2.5
ZA /PTB GPSPPP ZA02 /PT10 1018-2018 / 1001-2018 0.3 2.5 0.3
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
CH /PTB TWSTFT CH01 /PTB05 0284-2012 0.5 1.9 1.6
IT /PTB TWSTFT IT02 /PTB05 0434-2016 0.5 1.3 0.8
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.9 1.1
NPL /PTB TWSTFT NPL02 /PTB05 NA_Al 0.5 3.2 0.0 0.0 1902
OP /PTB TWGPPP OP01 /PTB05 0437-2016 0.3 1.3 0.8
ROA /PTB TWGPPP ROA01 /PTB05 0440-2016 0.3 1.6 0.8
SP /PTB TWGPPP SP01 /PTB05 0441-2016 0.3 1.3 0.8
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.2 0.7
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.4 0.9