CIRCULAR T 377 ISSN 1143-1393
2019 JUNE 13, 13h 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 APR 26 MAY 1 MAY 6 MAY 11 MAY 16 MAY 21 MAY 26 MAY 31 Uncertainty/ns Notes
MJD 58599 58604 58609 58614 58619 58624 58629 58634 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -4.3 -3.3 -3.6 -3.5 -3.3 -1.0 -3.9 -2.4 0.7 7.6 7.7
APL (Laurel) 3.2 4.2 6.0 6.7 4.7 2.7 4.5 3.3 0.3 11.1 11.1
AUS (Sydney) -155.9 -155.3 -163.2 -176.1 -180.1 -197.6 -198.6 -201.4 0.3 6.4 6.4
BEV (Wien) -60.1 -63.6 -55.5 -51.4 -43.1 -38.4 -31.4 -34.6 0.5 3.2 3.3
BIM (Sofiya) - - - 10897.2 10928.0 10970.6 10989.9 11019.0 1.5 7.0 7.2
BIRM (Beijing) 6.7 9.1 9.0 -4.2 -14.5 -20.7 -11.1 -2.2 0.7 3.1 3.2
BOM (Skopje) -2029.5 -2048.0 -2070.2 -2077.8 -2103.3 -2126.1 -2148.8 -2166.8 1.5 8.3 8.5
BY (Minsk) 0.4 1.5 2.1 3.4 2.5 0.1 -1.2 -1.4 1.5 12.2 12.3
CAO (Cagliari) - - - - - - - -
CH (Bern-Wabern) -8.7 -9.7 -8.9 -7.7 -6.1 -6.2 -5.4 -4.5 0.3 2.0 2.1
CNES (Toulouse) -1.9 -0.2 1.0 2.3 6.3 9.4 13.9 12.1 0.3 4.6 4.6
CNM (Queretaro) -0.5 0.8 -1.4 6.2 2.8 8.5 1.6 0.2 2.5 11.2 11.5
CNMP (Panama) 17.3 40.5 54.8 6.5 1.0 -5.6 -8.2 -12.3 0.5 7.4 7.4
DFNT (Tunis) 6314.1 6541.3 6756.4 6976.1 7156.7 7352.3 7567.4 7753.8 0.7 20.0 20.0
DLR (Oberpfaffenhofen) 674.8 687.7 695.7 704.2 706.7 719.4 728.1 737.6 0.7 3.2 3.3
DMDM (Belgrade) 6.7 -0.6 -5.7 -11.2 -4.1 -0.2 -8.2 -10.1 0.3 3.2 3.3
DTAG (Frankfurt/M) -182.7 -183.2 -188.1 -186.0 -176.0 -154.9 -139.5 -196.8 0.7 2.9 3.0 (1)
EIM (Thessaloniki) 2.8 2.9 17.4 5.7 10.4 2.5 8.7 7.8 3.0 11.2 11.6
ESTC (Noordwijk) -1.0 -1.3 1.9 2.3 1.9 0.6 -0.8 -1.9 0.3 3.0 3.0
HKO (Hong Kong) -17.5 -15.5 -15.3 -8.8 -9.9 2.1 -2.1 10.1 0.3 7.8 7.8
ICE (San Jose) 44.6 40.7 29.2 33.9 - 11.6 11.7 5.4 5.0 20.0 20.6
IFAG (Wettzell) -902.8 -880.6 -866.2 -858.2 -857.1 -848.1 -836.2 -825.0 0.3 5.1 5.1
IGNA (Buenos Aires) 7.8 2.5 9.7 8.8 5.9 2.7 8.8 8.9 0.3 20.0 20.0
IMBH (Sarajevo) 3.1 -5.5 -3.6 -5.4 -5.0 -8.2 -6.0 -3.2 0.3 7.0 7.0
INCP (Lima) - - - - - -54.3 27.9 51.5 5.0 20.0 20.6
INM (Bogota D.C.) -2.5 -15.6 -18.4 -19.1 - -36.1 -36.3 -38.4 2.0 20.0 20.1
INPL (Jerusalem) -141.7 -137.0 -129.3 -129.3 -127.6 -119.4 -112.5 -122.1 1.5 7.2 7.4
INTI (Buenos Aires) -64.8 -56.6 -70.4 -70.9 - -73.5 -60.2 -45.5 2.5 20.0 20.2
INXE (Rio de Janeiro) -24.1 1.6 -3.5 1.2 6.2 -10.5 -11.5 -5.6 0.3 20.0 20.0
IPQ (Caparica) -77.7 - 88.5 81.2 102.4 125.3 128.7 136.0 0.7 20.0 20.0
IT (Torino) -3.7 -5.7 -6.3 -7.9 -9.3 -7.3 -4.8 -3.2 0.3 1.4 1.4
JATC (Lintong) -0.9 1.4 1.6 1.9 1.9 3.3 1.5 1.4 0.3 2.6 2.7
JV (Kjeller) 43.9 45.7 40.5 44.3 38.3 49.8 48.8 51.8 0.3 4.2 4.2
KEBS (Nairobi) - - - - - - - -
KIM (Serpong-Tangerang) - - - - - - - -
KRIS (Daejeon) 7.3 8.9 10.6 12.1 13.9 16.9 15.1 12.7 0.7 2.9 3.0
KZ (Astana) - - - - - - - -
LRTE (Sao Carlos) 32.2 33.1 32.2 20.9 9.2 -2.9 -3.3 -11.5 0.3 20.0 20.0
LT (Vilnius) 695.9 702.6 729.4 708.9 715.4 710.0 694.8 701.8 0.3 2.7 2.7
LUX (Belvaux) 3.8 1.2 0.8 3.7 0.3 -9.7 -10.9 -13.9 0.3 2.8 2.8
MASM (Bayanzurkh) -10.5 -90.1 -166.1 -245.4 -323.7 -379.9 -452.5 -465.7 0.7 20.0 20.0
MBM (Podgorica) - - - - - - - -
MIKE (Espoo) -3.3 -2.7 -2.6 -2.8 -3.0 -3.1 -2.4 -2.4 0.3 4.5 4.5
MKEH (Budapest) 16.3 92.0 165.1 245.2 320.8 - - 131.4 1.5 20.0 20.1
MSL (Lower Hutt) 351.7 355.6 358.1 352.2 353.4 332.2 318.5 311.9 1.5 20.0 20.1 (2)
MTC (Makkah) - - - - - - - -
NAO (Mizusawa) -550.5 -552.6 -560.8 -565.9 -573.1 -575.6 -586.1 -596.4 2.0 19.9 20.0
NICT (Tokyo) -1.0 -0.5 -1.2 -0.5 0.8 0.9 0.2 -0.4 0.3 1.6 1.6
NIM (Beijing) 2.7 3.0 3.5 3.3 1.4 1.5 1.6 0.1 0.3 1.6 1.6
NIMB (Bucharest) 5481.3 5527.4 5571.2 5618.8 5668.8 5750.8 5808.0 5854.8 0.4 7.4 7.4
NIMT (Pathumthani) -76.0 -73.5 -64.0 -50.3 -49.3 -44.3 -33.7 -29.5 1.5 3.7 4.0
NIS (Cairo) 28.6 24.3 13.7 5.1 -1.6 -9.8 -19.0 -20.3 1.0 20.0 20.0
NIST (Boulder) 0.4 -0.4 -0.8 -1.8 -2.8 -2.8 -2.3 -2.4 0.3 1.9 1.9
NMIJ (Tsukuba) 2.7 5.1 5.7 6.0 6.4 7.1 7.9 7.9 0.3 3.4 3.4
NMLS (Sepang) -33.8 -69.3 -99.7 -125.3 -156.4 -191.1 -220.0 -254.1 1.5 3.6 3.9
NPL (Teddington) -3.0 -3.1 -3.0 -3.5 -2.8 -2.5 -2.0 -1.5 0.5 3.2 3.2
NPLI (New-Delhi) 11.6 13.9 14.1 16.0 19.7 19.2 18.5 17.0 0.3 2.6 2.7
NRC (Ottawa) 4.3 5.0 5.4 4.5 6.4 1.6 4.5 3.8 0.3 2.8 2.9
NRL (Washington DC) 4.5 5.0 1.5 7.5 6.2 -0.1 2.5 4.9 0.3 20.0 20.0
NTSC (Lintong) -1.8 0.4 0.5 1.5 1.4 2.7 2.0 1.5 0.3 2.5 2.5
ONBA (Buenos Aires) 2.5 26.5 41.1 54.7 51.7 46.3 47.7 68.8 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -0.7 -1.2 -2.0 -0.9 3.1 5.5 0.3 5.8 1.0 20.0 20.0
OP (Paris) 0.9 0.7 0.8 0.7 0.5 -0.2 -0.5 -0.9 0.3 1.4 1.4
ORB (Bruxelles) 2.7 2.1 0.7 0.1 -0.2 -0.1 0.6 0.5 0.3 3.0 3.0
PL (Warszawa) 4.2 0.6 -3.0 -4.3 -2.2 -1.1 0.3 1.0 0.3 2.6 2.7
PTB (Braunschweig) 1.1 0.7 0.3 -0.4 -1.5 -2.3 -1.9 -1.5 0.1 0.5 0.5
ROA (San Fernando) -1.5 -0.8 -0.3 -0.8 -0.5 -0.9 -2.6 -3.6 0.3 1.7 1.7
SASO (Riyadh) -369.3 -377.2 -389.9 -399.4 -419.7 -442.2 -455.0 -465.0 0.4 2.8 2.8
SCL (Hong Kong) -113.2 -112.5 -121.4 -122.5 -120.0 -123.9 -137.4 -149.1 1.0 20.0 20.0
SG (Singapore) 12.1 20.9 23.8 24.0 24.4 18.0 15.1 15.4 0.3 6.6 6.6
SIQ (Ljubljana) 265.4 251.2 240.2 235.2 260.4 325.7 344.4 359.2 0.3 7.5 7.5
SL (Colombo) 28.3 32.2 35.0 32.6 30.4 24.1 31.2 44.5 0.3 20.0 20.0
SMD (Bruxelles) -5.6 0.2 0.7 2.7 0.0 -0.7 0.4 -9.2 0.3 2.9 3.0
SMU (Bratislava) -306.3 -250.8 -226.2 -205.7 -192.7 -181.4 -170.9 -157.8 1.5 12.2 12.3
SP (Boras) 1.1 0.9 0.6 0.3 0.2 -0.1 -0.1 -0.3 0.3 1.3 1.4
SU (Moskva) 1.1 1.4 1.1 0.8 0.9 2.0 0.7 0.9 0.7 1.5 1.7
TL (Chung-Li) 0.8 0.9 0.6 0.3 -0.3 -1.2 -1.1 -1.7 0.3 1.7 1.8
TP (Praha) -21.8 -27.1 -26.5 -25.0 -19.5 -21.6 -16.7 -14.4 0.3 11.2 11.2
UA (Kharkov) 8.8 -6.1 -8.7 1.0 -0.3 -4.9 -7.2 -2.1 1.5 9.2 9.3
UAE (Abu Dhabi) 12.5 14.0 7.6 4.7 16.8 22.0 16.9 13.9 4.0 8.6 9.5
UME (Gebze-Kocaeli) 39.7 39.7 56.5 66.2 52.0 38.6 27.3 12.2 1.5 8.7 8.8
USNO (Washington DC) 0.7 1.2 1.9 2.3 2.3 2.2 2.6 2.7 0.3 1.1 1.1
VMI (Ha Noi) 9.1 -5.6 -11.6 -13.2 -5.3 -2.0 -11.9 -13.7 2.0 3.6 4.1
VSL (Delft) -3.3 -1.8 5.0 7.9 2.2 5.7 5.8 4.1 0.3 1.5 1.5
ZA (Pretoria) 2.2 6.0 7.6 4.7 4.9 6.3 5.1 2.6 0.3 2.6 2.6
- Notes on section 1:
(1) DTAG : Apparent time step of UTC(DTAG) of about +70 ns on MJD 58630.
(2) MSL : Apparent time step of UTC(MSL) of about +30 ns on MJD 58623.9 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 58599 - 58634 6.497x10-13 (2019 APR 26 - 2019 MAY 31)
New correction 58634 - 58664 6.497x10-13 (2019 MAY 31 - 2019 JUN 30)
New correction foreseen 58664 - 58694 6.495x10-13 (2019 JUN 30 - 2019 JUL 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 58599 58634 -10.52 8.00 8.00 0.00 0.09 11.31 PFS/NA T148 8. Y (1)
METAS-FOC2 58599 58629 -1.07 1.00 1.38 0.04 0.27 1.73 PFS/NA T371 1.99 Y (2)
SYRTE-FO1 58599 58634 0.66 0.20 0.32 0.06 0.20 0.43 PFS/NA T301 0.37 Y (3)
SYRTE-FO2 58599 58634 0.57 0.20 0.21 0.06 0.20 0.36 PFS/NA T301 0.23 Y (3)
SYRTE-FOM 58599 58629 0.73 0.20 0.65 0.06 0.23 0.72 PFS/NA T372 0.70 Y (3)
SYRTE-FORb 58599 58634 0.95 0.20 0.25 0.06 0.20 0.38 0.6 [1] T328 0.34 Y (3)
PTB-CSF2 58599 58624 0.62 0.10 0.17 0.06 0.12 0.24 PFS/NA T370 0.17 Y (4)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 03 JUN. 2019 by CH
(3) Report 04 JUN. 2019 by LNE-SYRTE
(4) Report 27 MAY. 2019 by PTB
[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 MJD58239-58634, and corresponding uncertainties.

Period of estimation d u
58599-58634 0.58x10-15 0.18x10-15 (2019 APR 26 - 2019 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'= 0.7 ns, σ1'= 6.8 ns

2019 0h UTC MJD C0'/ns N0 C1'/ns N1'
APR 26 58599 1.9 90 18.0 84
APR 27 58600 2.2 89 17.5 83
APR 28 58601 3.4 89 19.3 82
APR 29 58602 4.0 89 20.5 89
APR 30 58603 3.7 90 23.8 85
MAY 1 58604 3.1 89 26.7 77
MAY 2 58605 4.2 89 27.6 86
MAY 3 58606 3.7 89 27.9 89
MAY 4 58607 3.3 90 27.6 88
MAY 5 58608 3.7 89 27.8 73
MAY 6 58609 5.2 89 27.2 88
MAY 7 58610 6.3 89 25.9 88
MAY 8 58611 5.8 90 23.2 89
MAY 9 58612 5.4 89 22.6 78
MAY 10 58613 3.5 89 24.2 87
MAY 11 58614 5.0 89 24.5 87
MAY 12 58615 6.3 90 24.2 87
MAY 13 58616 4.3 89 24.7 79
MAY 14 58617 2.9 89 25.5 86
MAY 15 58618 4.9 90 26.3 89
MAY 16 58619 4.9 91 27.5 79
MAY 17 58620 6.0 90 28.6 82
MAY 18 58621 5.2 89 28.9 82
MAY 19 58622 2.1 89 27.8 88
MAY 20 58623 3.1 90 26.3 88
MAY 21 58624 5.0 89 25.8 79
MAY 22 58625 4.5 89 25.2 83
MAY 23 58626 6.2 89 24.7 86
MAY 24 58627 5.2 90 24.6 87
MAY 25 58628 4.0 89 24.4 79
MAY 26 58629 4.6 87 25.1 87
MAY 27 58630 4.1 84 24.9 84
MAY 28 58631 3.5 84 22.9 83
MAY 29 58632 4.0 81 23.7 78
MAY 30 58633 5.1 78 25.2 86
MAY 31 58634 4.9 77 24.9 88

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 /PT03 NA_Al / 1001-2018 0.7 7.6 2.7 +13.9 1512
APL /PTB GPSPPP AP02 /PT03 NA_Al / 1001-2018 0.3 11.2 10.0
AUS /PTB GPSPPP AU01 /PT03 1002-2010 / 1001-2018 0.3 6.4 4.1
BEV /PTB GPSPPP BE1_ /PT03 1012-2016 / 1001-2018 0.5 3.2 2.0
BIM /PTB GPS MC BM51 /PT03 2007-2019 / 1001-2018 1.5 7.0 0.7
BIRM/PTB GPS P3 BI01 /PT03 1015-2016 / 1001-2018 0.7 3.1 1.8
BOM /PTB GPS MC MABM /PT03 2004-2014 / 1001-2018 1.5 8.3 4.5
BY /PTB GPS MC BY46 /PT03 NA / 1001-2018 1.5 12.2 10.0
CAO /PTB NL
CNES/PTB GPSPPP CS21 /PT03 1101-2016 / 1001-2018 0.3 4.6 2.0
CNM /PTB GPS MC CN00 /PT03 NA_Al / 1001-2018 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPSPPP MP1_ /PT03 NA_Al / 1001-2018 0.5 7.4 2.3 41.7 1607
DFNT/PTB GPS P3 DN__ /PT03 NC_Al / 1001-2018 0.7 20.0 10.3 1507
DLR /PTB GPS P3 DL05 /PT03 1012-2016 / 1001-2018 0.7 3.2 2.1
DMDM/PTB GPSPPP ZM68 /PT03 1011-2016 / 1001-2018 0.3 3.2 2.0
DTAG/PTB GPS P3 DT05 /PT03 1015-2017 / 1001-2018 0.7 2.9 1.4
EIM /PTB GPS MC EI__ /PT03 NA / 1001-2018 3.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT03 1019-2016 / 1001-2018 0.3 3.0 1.6
HKO /PTB GPSPPP HKO2 /PT03 2002-2012 / 1001-2018 0.3 7.8 3.5
ICE /PTB GPS MC CE1_ /PT03 NC / 1001-2018 5.0 20.0
IFAG/PTB GPSPPP IF19 /PT03 1016-2017 / 1001-2018 0.3 5.1 1.2
IGNA/PTB GPSPPP IG02 /PT03 NC_Al / 1001-2018 0.3 20.0 -42.3 1904
IMBH/PTB GPSPPP BH02 /PT03 2001-2018 / 1001-2018 0.3 7.0 0.2
INCP/PTB GPS MC CP__ /PT03 NC / 1001-2018 5.0 20.0
INM /PTB GPS MC IC__ /PT03 NC / 1001-2018 2.0 20.0
INPL/PTB GPS P3 IL06 /PT03 2003-2016 / 1001-2018 1.5 7.2 1.9
INTI/PTB GPS MC IN__ /PT03 NC / 1001-2018 2.5 20.0
INXE/PTB GPSPPP NXRA /PT03 NC / 1001-2018 0.3 20.0
IPQ /PTB GPS P3 IP05 /PT03 NC / 1001-2018 0.7 20.0
JATC/PTB GPSPPP JA01 /PT03 1201-2018 / 1001-2018 0.3 2.6 0.6
JV /PTB GPSPPP JV02 /PT03 1101-2017 / 1001-2018 0.3 4.2 1.1
KEBS/PTB NL
KIM /PTB NL
KRIS/PTB GPS P3 KRG1 /PT03 1017-2017 / 1001-2018 0.7 2.9 1.5
KZ /PTB NL
LRTE/PTB GPSPPP LRRC /PT03 NC / 1001-2018 0.3 20.0
LT /PTB GPSPPP LT02 /PT03 1014-2018 / 1001-2018 0.3 2.6 0.6
LUX /PTB GPSPPP LU01 /PT03 1012-2018 / 1001-2018 0.3 2.7 1.0
MASM/PTB GPS P3 MN__ /PT03 NC / 1001-2018 0.7 20.0
MBM /PTB NL
MIKE/PTB GPSPPP MI04 /PT03 1102-2015 / 1001-2018 0.3 4.6 2.2
MKEH/PTB GPS MC MK01 /PT03 NC / 1001-2018 1.5 20.0
MSL /PTB GPS P3 MS0_ /PT03 NC / 1001-2018 1.5 20.0
MTC /PTB NL
NAO /PTB GPS MC NAT2 /PT03 NC / 1001-2018 2.0 20.0
NICT/PTB GPSPPP NC4S /PT03 1001-2018 / 1001-2018 0.3 1.6 0.7
NIM /PTB GPSPPP IM06 /PT03 1001-2018 / 1001-2018 0.3 1.6 0.6
NIMB/PTB GPSPPP MB02 /PT03 NA_Al / 1001-2018 0.4 7.4 2.5 32.2 1611
NIMT/PTB GPS MC MTTO /PT03 1013-2017 / 1001-2018 1.5 3.7 2.7
NIS /PTB GPS P3 IS__ /PT03 NC_Al / 1001-2018 1.0 20.0 +16.4 1303
NMIJ/PTB GPSPPP NM0D /PT03 NA_Al / 1001-2018 0.3 3.4 2.9
NMLS/PTB GPS MC LSM1 /PT03 1013-2017 / 1001-2018 1.5 3.6 2.6
NPLI/PTB GPSPPP LI2P /PT03 1013-2018 / 1001-2018 0.3 2.6 0.8
NRC /PTB GPSPPP NRC4 /PT03 1019-2017 / 1001-2018 0.3 2.8 1.3
NRL /PTB GPSPPP RL2_ /PT03 NC / 1001-2018 0.3 20.0
NTSC/PTB GPSPPP NTP1 /PT03 1001-2016 / 1001-2018 0.3 2.6 1.9
ONBA/PTB GPS MC ON__ /PT03 1002-2004 / 1001-2018 2.0 11.2 10.0
ONRJ/PTB GPS P3 RJ02 /PT03 NA / 1001-2018 1.0 20.0 3.7
ORB /PTB GPSPPP OR1Z /PT03 1018-2017 / 1001-2018 0.3 3.0 1.6
PL /PTB GPSPPP PL_3 /PT03 1014-2018 / 1001-2018 0.3 2.6 0.6
SASO/PTB GPSPPP SAS0 /PT03 1020-2017 / 1001-2018 0.4 2.7 1.1
SCL /PTB GPS P3 SC05 /PT03 NC / 1001-2018 1.0 20.0
SG /PTB GPSPPP SG01 /PT03 NA_Al / 1001-2018 0.3 6.6 4.3 -114.2 1802
SIQ /PTB GPSPPP SI01 /PT03 2002-2014 / 1001-2018 0.3 7.5 2.8
SL /PTB GPSPPP SL01 /PT03 NC / 1001-2018 0.3 20.0
SMD /PTB GPSPPP SD01 /PT03 1014-2017 / 1001-2018 0.3 2.9 1.5
SMU /PTB GPS MC SM00 /PT03 NA_Al / 1001-2018 1.5 12.2 10.0 57.8 0908
SU /PTB GPS P3 SU31 /PT03 1001-2018 / 1001-2018 0.8 1.7 0.7
TL /PTB GPSPPP TLT1 /PT03 1001-2018 / 1001-2018 0.3 1.7 0.7
TP /PTB GPSPPP TP04 /PT03 1002-2009 / 1001-2018 0.3 11.2 10.0
UA /PTB GPS MC UA04 /PT03 2003-2011 / 1001-2018 1.5 9.2 6.0
UAE /PTB GPS MC AE__ /PT03 2001-2016 / 1001-2018 4.0 8.6 5.0
UME /PTB GPS MC UM01 /PT03 NA / 1001-2018 1.5 8.7 5.2
VMI /PTB GPS MC VM__ /PT03 1013-2017 / 1001-2018 2.0 3.6 2.5
ZA /PTB GPSPPP ZA02 /PT03 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 TWGPPP IT02 /PTB05 0434-2016 0.3 1.3 0.8
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.9 1.1
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 1.3 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 1.3 0.7
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.4 0.9