CIRCULAR T 378 ISSN 1143-1393
2019 JULY 12, 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 https://webtai.bipm.org/ftp/pub/tai/other-products/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 MAY 31 JUN 5 JUN 10 JUN 15 JUN 20 JUN 25 JUN 30 Uncertainty/ns Notes
MJD 58634 58639 58644 58649 58654 58659 58664 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -2.4 -2.4 -2.5 -2.7 -2.8 -1.7 -7.5 0.7 7.6 7.7
APL (Laurel) 3.3 4.6 5.3 3.1 0.4 -1.4 -2.9 0.3 11.1 11.1
AUS (Sydney) -201.4 -186.8 -199.1 -206.2 -210.4 -213.9 -231.4 0.3 6.5 6.5
BEV (Wien) -34.6 -31.0 -36.6 -44.8 -40.2 -42.7 -40.4 0.5 3.2 3.3
BIM (Sofiya) 11019.0 11052.4 11064.4 11089.6 11130.4 11172.2 11171.1 1.5 7.1 7.3
BIRM (Beijing) -2.2 -3.9 10.4 16.0 15.5 2.3 -2.2 0.7 3.1 3.2
BOM (Skopje) -2166.8 -2189.0 -2210.3 -2222.7 -2242.6 -2186.0 -2204.8 1.5 8.3 8.5 (1)
BY (Minsk) -1.4 -0.1 -0.8 -1.3 -1.5 -0.8 0.4 1.5 12.2 12.3
CAO (Cagliari) - - - - - - -
CH (Bern-Wabern) -4.5 -3.8 -3.8 -3.3 -2.5 -1.6 -1.3 0.3 2.0 2.1
CNES (Toulouse) 12.1 6.7 3.4 -1.3 -7.0 -11.9 -14.8 0.3 4.6 4.6
CNM (Queretaro) 0.2 12.3 2.6 5.8 6.9 -0.6 4.4 2.5 11.2 11.5
CNMP (Panama) -12.3 -15.8 2.2 -1.3 11.8 5.5 - 0.5 7.4 7.4
DFNT (Tunis) 7753.8 7965.3 8147.2 8333.0 8544.0 8735.2 8924.0 0.7 20.0 20.0
DLR (Oberpfaffenhofen) 737.6 751.1 758.4 767.0 776.4 790.6 - 0.7 3.3 3.4
DMDM (Belgrade) -10.1 -7.9 -9.7 -11.2 -14.5 -5.2 -6.4 0.3 3.2 3.3
DTAG (Frankfurt/M) -196.8 -180.4 -171.4 -154.6 -144.5 -137.8 -128.7 0.7 20.0 20.0
EIM (Thessaloniki) 7.8 0.5 11.9 6.9 - -8.9 -0.4 3.0 11.2 11.6
ESTC (Noordwijk) -1.9 -2.1 -0.9 -0.1 -1.2 -1.6 -0.5 0.3 3.0 3.1
HKO (Hong Kong) 10.1 10.4 16.2 22.7 22.7 24.8 28.0 0.5 7.8 7.8
ICE (San Jose) 5.4 9.6 10.0 7.5 -2.9 -14.4 -20.7 5.0 20.0 20.6
IFAG (Wettzell) -825.0 -811.9 -807.3 -811.7 -818.1 -831.3 -843.9 0.3 5.2 5.2
IGNA (Buenos Aires) 8.9 10.0 6.9 - - 7.1 -2.5 0.3 20.0 20.0
IMBH (Sarajevo) -3.2 -5.7 -5.0 -0.3 -14.3 2.6 1.4 0.3 7.0 7.0
INCP (Lima) 51.5 140.2 141.0 121.5 124.0 - 103.9 5.0 20.0 20.6
INM (Bogota D.C.) -38.4 -38.6 -39.1 -47.1 -49.0 -52.6 -58.3 2.0 20.0 20.1
INPL (Jerusalem) -122.1 -114.7 -104.5 -104.7 -101.0 -95.3 -88.0 1.5 7.3 7.5
INTI (Buenos Aires) -45.5 -44.7 -63.2 -51.2 -54.6 -68.0 -62.2 2.5 20.0 20.2
INXE (Rio de Janeiro) -5.6 1.3 1.2 7.1 1.6 -1.6 -2.7 0.3 20.0 20.0
IPQ (Caparica) 136.0 160.9 176.5 198.8 224.5 242.4 247.9 0.7 20.0 20.0
IT (Torino) -3.2 -3.8 -3.5 -2.2 -0.8 -0.2 -0.3 0.5 1.5 1.6
JATC (Lintong) 1.4 -0.3 -0.8 0.0 -3.0 -0.4 0.0 0.3 2.6 2.7
JV (Kjeller) 51.8 39.9 45.0 39.3 32.1 37.1 38.6 0.3 4.2 4.2
KEBS (Nairobi) - - - - - - -
KIM (Serpong-Tangerang) - - - - - - -
KRIS (Daejeon) 12.7 7.8 3.8 -0.9 -4.8 -8.1 -9.6 0.3 3.0 3.0
KZ (Astana) - - - - - - -
LRTE (Sao Carlos) -11.5 -23.1 -48.4 -32.0 14.8 8.3 7.4 0.3 20.0 20.0 (2)
LT (Vilnius) 701.8 700.7 710.7 694.7 699.1 714.5 719.5 0.3 2.7 2.7
LUX (Belvaux) -13.9 -4.2 -3.5 -1.6 4.5 9.2 11.1 0.3 2.8 2.8
MASM (Bayanzurkh) -465.7 -472.0 -486.2 -514.2 -541.3 -574.9 -87.4 0.7 20.0 20.0 (3)
MBM (Podgorica) - - - - - - -
MIKE (Espoo) -2.4 -2.1 -1.7 -1.4 -1.4 -1.5 -1.5 0.3 4.5 4.5
MKEH (Budapest) 131.4 - - - - 229.1 317.9 1.5 20.0 20.1
MSL (Lower Hutt) 311.9 307.8 304.0 321.5 337.2 342.3 337.6 1.5 20.0 20.1
MTC (Makkah) - - - - - - -
NAO (Mizusawa) -596.4 -596.1 -609.3 -613.8 -619.7 -622.4 -627.1 2.0 19.9 20.0
NICT (Tokyo) -0.4 -1.4 -1.9 -1.7 -1.0 -0.7 -1.3 0.3 1.7 1.7
NIM (Beijing) 0.1 0.0 -0.3 -0.9 -0.8 -1.3 -0.3 0.3 1.6 1.6
NIMB (Bucharest) 5854.8 5907.6 5957.5 5991.0 6049.5 6106.7 6166.9 0.4 7.4 7.4 (4)
NIMT (Pathumthani) -29.5 -23.1 -19.1 -5.7 7.6 28.3 33.4 1.5 3.7 4.0
NIS (Cairo) -20.3 -30.7 -37.7 -34.8 -24.4 -23.9 -20.3 1.0 20.0 20.0
NIST (Boulder) -2.4 -2.6 -3.5 -3.6 -3.1 -1.9 -0.6 0.3 1.9 1.9
NMIJ (Tsukuba) 7.9 7.4 7.6 5.4 1.9 -1.3 -4.3 0.3 3.4 3.4
NMLS (Sepang) -254.1 -278.3 -316.1 -337.7 -367.9 -399.5 -426.6 1.5 3.7 4.0
NPL (Teddington) -1.5 -1.2 -0.9 -0.8 -1.8 -2.3 -3.1 0.5 3.2 3.2
NPLI (New-Delhi) 17.0 17.3 14.4 9.9 6.4 3.0 -4.1 0.3 2.7 2.8
NRC (Ottawa) 3.8 7.1 -5.3 -10.6 -7.7 4.7 2.5 0.3 2.8 2.9
NRL (Washington DC) 4.9 4.9 1.4 -0.5 -1.0 5.1 -1.9 0.3 20.0 20.0
NTSC (Lintong) 1.5 -0.3 0.5 -0.1 -1.7 -0.6 -0.2 0.3 2.5 2.5
ONBA (Buenos Aires) 68.8 81.7 94.1 88.0 100.1 84.3 82.6 2.0 11.2 11.4
ONRJ (Rio de Janeiro) 5.8 5.1 5.7 0.5 -1.8 -9.1 -6.2 1.0 20.0 20.0
OP (Paris) -0.9 -1.4 -1.6 -1.7 -1.4 -0.9 -0.3 0.3 1.4 1.5
ORB (Bruxelles) 0.5 1.3 1.3 0.5 0.6 0.3 1.0 0.3 3.0 3.0
PL (Warszawa) 1.0 1.1 0.8 0.1 -1.1 -3.3 -5.6 0.3 2.6 2.7
PTB (Braunschweig) -1.5 -1.2 -1.1 -1.6 -1.6 -1.8 -1.7 0.1 0.5 0.6
ROA (San Fernando) -3.6 -3.7 -4.1 -3.0 -2.8 -4.4 -5.1 0.3 1.7 1.7
SASO (Riyadh) -465.0 -480.4 -491.0 -499.6 -515.2 -529.6 -540.8 0.4 2.8 2.9
SCL (Hong Kong) -149.1 -138.0 -136.2 -127.3 -118.0 -106.0 -98.1 1.0 20.0 20.0
SG (Singapore) 15.4 18.3 20.9 16.4 15.3 17.4 19.8 0.3 6.7 6.7
SIQ (Ljubljana) 359.2 365.8 368.6 395.5 424.7 434.8 428.9 0.3 7.5 7.5
SL (Colombo) 44.5 105.2 - - - - - 0.3 20.0 20.0
SMD (Bruxelles) -9.2 -27.2 -15.9 -11.8 -22.2 -10.9 -9.8 0.3 3.0 3.1
SMU (Bratislava) -157.8 -133.2 -122.2 -106.7 -90.6 -83.2 -56.8 1.5 12.2 12.3
SP (Boras) -0.3 -0.5 -0.9 -1.4 -2.1 -2.8 -3.1 0.3 1.4 1.4
SU (Moskva) 0.9 1.2 0.8 0.9 1.1 0.7 0.5 0.7 1.5 1.7
TL (Chung-Li) -1.7 -1.5 -1.2 -0.9 -0.4 -0.1 0.1 0.3 1.7 1.8
TP (Praha) -14.4 -14.7 -7.5 -4.8 -1.9 -2.4 -2.8 0.7 4.2 4.3
UA (Kharkov) -2.1 5.3 2.0 4.8 4.3 1.7 7.1 1.5 9.2 9.3
UAE (Abu Dhabi) 13.9 20.7 18.0 8.9 8.1 13.8 19.8 4.0 8.6 9.5
UME (Gebze-Kocaeli) 12.2 35.5 52.5 68.2 61.5 42.8 31.5 1.5 8.7 8.8
USNO (Washington DC) 2.7 2.3 1.7 1.1 0.8 -0.1 -0.3 0.3 1.1 1.1
VMI (Ha Noi) -13.7 -11.6 -5.4 -4.0 -3.1 0.7 1.8 2.0 3.6 4.1
VSL (Delft) 4.1 -0.4 1.3 6.5 -4.2 3.3 10.8 0.3 1.5 1.5
ZA (Pretoria) 2.6 - 3.1 1.5 -1.1 -1.4 1.6 0.3 2.6 2.6
- Notes on section 1:
(1) BOM : Apparent time step of UTC(BOM) of -74 ns on MJD 58654.3.
(2) LRTE : Apparent time step of UTC(LRTE) of +15 ns on MJD 58639.52.
(3) MASM : Time step of UTC(MASM) of -550 ns on MJD 58659.22.
(4) NIMB : Apparent time step of UTC(NIMB) of +14 ns on MJD 58647.37.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58634 - 58664 6.497x10-13 (2019 MAY 31 - 2019 JUN 30)
New correction 58664 - 58694 6.495x10-13 (2019 JUN 30 - 2019 JUL 30)
New correction foreseen 58694 - 58724 6.495x10-13 (2019 JUL 30 - 2019 AUG 29)

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 58634 58664 -4.67 8.00 8.00 0.00 0.07 11.31 PFS/NA T148 8. Y (1)
PTB-CS2 58634 58664 0.42 5.00 12.00 0.00 0.07 13.00 PFS/NA T148 12. Y (1)
NIM5 58634 58659 0.55 0.20 0.90 0.20 0.23 0.97 PFS/NA T340 1.40 Y (2)
SYRTE-FO1 58634 58664 0.18 0.15 0.32 0.05 0.20 0.41 PFS/NA T301 0.37 Y (3)
SYRTE-FO2 58634 58664 0.75 0.20 0.21 0.08 0.20 0.36 PFS/NA T301 0.23 Y (3)
SYRTE-FOM 58649 58664 0.44 0.20 0.61 0.05 0.37 0.74 PFS/NA T372 0.70 Y (3)
SYRTE-FORb 58634 58664 0.77 0.18 0.25 0.07 0.20 0.37 0.6 [1] T328 0.34 Y (3)
PTB-CSF1 58624 58634 0.45 0.11 0.32 0.03 0.18 0.38 PFS/NA T371 0.28 Y (4)
PTB-CSF2 58624 58634 0.51 0.22 0.17 0.06 0.18 0.33 PFS/NA T370 0.17 Y (4)
PTB-CSF2 58634 58664 0.59 0.11 0.17 0.06 0.07 0.22 PFS/NA T370 0.17 Y (4)
SU-CsFO2 58634 58664 1.17 0.37 0.22 0.13 0.46 0.64 PFS/NA T315 0.50 Y (5)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 02 JUL. 2019 by NIM
(3) Report 03 JUL. 2019 by LNE-SYRTE
(4) Report 04 JUL. 2019 by PTB
(5) Report 30 JUN. 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 MJD58274-58664, and corresponding uncertainties.

Period of estimation d u
58634-58664 0.58x10-15 0.15x10-15 (2019 MAY 31 - 2019 JUN 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'= 0.8 ns, σ1'= 6.9 ns

2019 0h UTC MJD C0'/ns N0 C1'/ns N1'
MAY 31 58634 4.9 89 24.9 89
JUN 1 58635 5.4 90 25.1 85
JUN 2 58636 5.8 89 26.9 77
JUN 3 58637 5.1 89 28.7 86
JUN 4 58638 3.9 89 27.5 83
JUN 5 58639 6.3 90 25.2 84
JUN 6 58640 5.3 89 25.1 80
JUN 7 58641 1.0 89 24.2 84
JUN 8 58642 1.6 89 23.8 89
JUN 9 58643 3.3 90 24.9 82
JUN 10 58644 4.3 89 27.1 73
JUN 11 58645 3.9 89 27.7 78
JUN 12 58646 2.8 89 27.0 86
JUN 13 58647 4.7 90 27.4 87
JUN 14 58648 7.4 89 27.8 82
JUN 15 58649 9.3 89 27.2 81
JUN 16 58650 7.4 87 27.0 86
JUN 17 58651 3.3 90 26.2 87
JUN 18 58652 2.7 89 26.3 76
JUN 19 58653 2.4 89 28.0 67
JUN 20 58654 2.2 89 28.9 67
JUN 21 58655 1.8 90 28.9 86
JUN 22 58656 3.5 89 27.3 83
JUN 23 58657 3.7 89 26.3 84
JUN 24 58658 1.2 89 28.0 78
JUN 25 58659 2.0 90 27.9 89
JUN 26 58660 3.6 89 25.9 84
JUN 27 58661 2.1 89 26.4 88
JUN 28 58662 1.7 87 26.3 88
JUN 29 58663 0.4 86 24.9 90
JUN 30 58664 1.4 85 25.0 83

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 /PT09 NA_Al / 1001-2018 0.7 7.6 2.8 +13.9 1512
APL /PTB GPSPPP AP02 /PT09 NA_Al / 1001-2018 0.3 11.2 10.0
AUS /PTB GPSPPP AU01 /PT09 1002-2010 / 1001-2018 0.3 6.5 4.1
BEV /PTB GPSPPP BE1_ /PT09 1012-2016 / 1001-2018 0.5 3.2 2.0
BIM /PTB GPS MC BM51 /PT09 2007-2019 / 1001-2018 1.5 7.1 0.9
BIRM/PTB GPS P3 BI01 /PT09 1015-2016 / 1001-2018 0.7 3.1 1.8
BOM /PTB GPS MC MABM /PT09 2004-2014 / 1001-2018 1.5 8.3 4.5
BY /PTB GPS MC BY46 /PT09 NA / 1001-2018 1.5 12.2 10.0
CAO /PTB NL
CNES/PTB GPSPPP CS21 /PT09 1101-2016 / 1001-2018 0.3 4.6 2.0
CNM /PTB GPS MC CN00 /PT09 NA_Al / 1001-2018 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPSPPP MP1_ /PT09 NA_Al / 1001-2018 0.5 7.4 2.3 41.7 1607
DFNT/PTB GPS P3 DN__ /PT09 NC_Al / 1001-2018 0.7 20.0 10.3 1507
DLR /PTB GPS P3 DL05 /PT09 1012-2016 / 1001-2018 0.7 3.3 2.1
DMDM/PTB GPSPPP ZM68 /PT09 1011-2016 / 1001-2018 0.3 3.2 2.0
DTAG/PTB GPS P3 DT05 /PT09 NC / 1001-2018 0.7 20.0
EIM /PTB GPS MC EI__ /PT09 NA / 1001-2018 3.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT09 1019-2016 / 1001-2018 0.3 3.0 1.6
HKO /PTB GPSPPP HKO2 /PT09 2002-2012 / 1001-2018 0.5 7.8 3.5
ICE /PTB GPS MC CE1_ /PT09 NC / 1001-2018 5.0 20.0
IFAG/PTB GPSPPP IF19 /PT09 1016-2017 / 1001-2018 0.3 5.2 1.3
IGNA/PTB GPSPPP IG02 /PT09 NC_Al / 1001-2018 0.3 20.0 -42.3 1904
IMBH/PTB GPSPPP BH02 /PT09 2001-2018 / 1001-2018 0.3 7.0 0.3
INCP/PTB GPS MC CP__ /PT09 NC / 1001-2018 5.0 20.0
INM /PTB GPS MC IC__ /PT09 NC / 1001-2018 2.0 20.0
INPL/PTB GPS P3 IL06 /PT09 2003-2016 / 1001-2018 1.5 7.3 1.9
INTI/PTB GPS MC IN__ /PT09 NC / 1001-2018 2.5 20.0
INXE/PTB GPSPPP NXRA /PT09 NC / 1001-2018 0.3 20.0
IPQ /PTB GPS P3 IP05 /PT09 NC / 1001-2018 0.7 20.0
JATC/PTB GPSPPP JA01 /PT09 1201-2018 / 1001-2018 0.3 2.6 0.6
JV /PTB GPSPPP JV02 /PT09 1101-2017 / 1001-2018 0.3 4.2 1.2
KEBS/PTB NL
KIM /PTB NL
KRIS/PTB GPSPPP KRG1 /PT09 1017-2017 / 1001-2018 0.3 3.0 1.6
KZ /PTB NL
LRTE/PTB GPSPPP LRRC /PT09 NC / 1001-2018 0.3 20.0
LT /PTB GPSPPP LT02 /PT09 1014-2018 / 1001-2018 0.3 2.6 0.6
LUX /PTB GPSPPP LU01 /PT09 1012-2018 / 1001-2018 0.3 2.7 1.0
MASM/PTB GPS P3 MN__ /PT09 NC / 1001-2018 0.7 20.0
MBM /PTB NL
MIKE/PTB GPSPPP MI04 /PT09 1102-2015 / 1001-2018 0.3 4.6 2.3
MKEH/PTB GPS MC MK01 /PT09 NC / 1001-2018 1.5 20.0
MSL /PTB GPS P3 MS0_ /PT09 NC / 1001-2018 1.5 20.0
MTC /PTB NL
NAO /PTB GPS MC NAT2 /PT09 NC / 1001-2018 2.0 20.0
NICT/PTB GPSPPP NC4S /PT09 1001-2018 / 1001-2018 0.3 1.7 0.7
NIM /PTB GPSPPP IM06 /PT09 1001-2018 / 1001-2018 0.3 1.6 0.6
NIMB/PTB GPSPPP MB02 /PT09 NA_Al / 1001-2018 0.4 7.4 2.5 32.2 1611
NIMT/PTB GPS MC MTTO /PT09 1013-2017 / 1001-2018 1.5 3.7 2.8
NIS /PTB GPS P3 IS__ /PT09 NC_Al / 1001-2018 1.0 20.0 +16.4 1303
NMIJ/PTB GPSPPP NM0D /PT09 NA_Al / 1001-2018 0.3 3.4 2.9
NMLS/PTB GPS MC LSM1 /PT09 1013-2017 / 1001-2018 1.5 3.7 2.7
NPLI/PTB GPSPPP LI2P /PT09 1013-2018 / 1001-2018 0.3 2.7 0.9
NRC /PTB GPSPPP NRC4 /PT09 1019-2017 / 1001-2018 0.3 2.8 1.3
NRL /PTB GPSPPP RL2_ /PT09 NC / 1001-2018 0.3 20.0
NTSC/PTB GPSPPP NTP1 /PT09 1001-2016 / 1001-2018 0.3 2.6 1.9
ONBA/PTB GPS MC ON__ /PT09 1002-2004 / 1001-2018 2.0 11.2 10.0
ONRJ/PTB GPS P3 RJ02 /PT09 NA / 1001-2018 1.0 20.0 3.7
ORB /PTB GPSPPP OR1Z /PT09 1018-2017 / 1001-2018 0.3 3.0 1.6
PL /PTB GPSPPP PL_3 /PT09 1014-2018 / 1001-2018 0.3 2.6 0.6
SASO/PTB GPSPPP SAS0 /PT09 1020-2017 / 1001-2018 0.4 2.8 1.2
SCL /PTB GPS P3 SC05 /PT09 NC / 1001-2018 1.0 20.0
SG /PTB GPSPPP SG01 /PT09 NA_Al / 1001-2018 0.3 6.7 4.3 -114.2 1802
SIQ /PTB GPSPPP SI01 /PT09 2002-2014 / 1001-2018 0.3 7.5 2.8
SL /PTB GPSPPP SL01 /PT09 NC / 1001-2018 0.3 20.0
SMD /PTB GPSPPP SD01 /PT09 1014-2017 / 1001-2018 0.3 3.0 1.6
SMU /PTB GPS MC SM00 /PT09 NA_Al / 1001-2018 1.5 12.2 10.0 57.8 0908
SU /PTB GPS P3 SU31 /PT09 1001-2018 / 1001-2018 0.8 1.7 0.8
TL /PTB GPSPPP TLT1 /PT09 1001-2018 / 1001-2018 0.3 1.7 0.8
TP /PTB GPS P3 TP02 /PT09 1102-2017 / 1001-2018 0.7 4.2 1.2
UA /PTB GPS MC UA04 /PT09 2003-2011 / 1001-2018 1.5 9.2 6.0
UAE /PTB GPS MC AE__ /PT09 2001-2016 / 1001-2018 4.0 8.6 5.0
UME /PTB GPS MC UM01 /PT09 NA / 1001-2018 1.5 8.7 5.2
VMI /PTB GPS MC VM__ /PT09 1013-2017 / 1001-2018 2.0 3.6 2.6
ZA /PTB GPSPPP ZA02 /PT09 1018-2018 / 1001-2018 0.3 2.5 0.4
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
CH /PTB TWGPPP CH01 /PTB05 0284-2012 0.3 2.0 1.7
IT /PTB TWSTFT IT02 /PTB05 0434-2016 0.5 1.4 0.9
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.9 1.2
NPL /PTB TWGPPP NPL02 /PTB05 NA_Al 0.5 3.2 0.0 0.0 1902
OP /PTB TWGPPP OP01 /PTB05 0437-2016 0.3 1.4 0.9
ROA /PTB TWGPPP ROA01 /PTB05 0440-2016 0.3 1.6 0.9
SP /PTB TWGPPP SP01 /PTB05 0441-2016 0.3 1.4 0.9
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.3 0.7
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.4 1.0