CIRCULAR T 395 ISSN 1143-1393
2020 DECEMBER 08, 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_v0.3.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 2020 0h UTC OCT 27 NOV 1 NOV 6 NOV 11 NOV 16 NOV 21 NOV 26 Uncertainty/ns Notes
MJD 59149 59154 59159 59164 59169 59174 59179 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) 0.1 -0.2 -0.5 -0.6 -0.7 -1.3 -1.0 0.3 2.8 2.8
APL (Laurel) -0.2 2.5 0.6 -0.1 -1.7 -2.1 -0.7 0.3 19.5 19.5
AUS (Sydney) -412.5 -397.2 -401.1 -400.4 -424.0 -429.9 -422.2 0.3 11.2 11.2
BEV (Wien) 25.5 32.8 34.6 43.5 44.2 41.0 40.5 0.3 3.2 3.2
BFKH (Budapest) 1567.7 1592.0 1618.8 1643.8 1663.0 1685.9 1703.7 1.5 20.0 20.1
BIM (Sofiya) 13732.3 13753.9 13784.1 13799.0 13820.3 13826.9 13849.3 0.7 7.0 7.1
BIRM (Beijing) - 2.7 0.1 -0.9 -2.2 -2.5 -2.5 0.7 2.7 2.8
BOM (Skopje) -3991.3 -4002.5 -4029.1 -4045.8 -4068.4 -4084.0 -4089.7 1.5 7.5 7.7
BY (Minsk) -2.0 -1.6 -1.4 -2.3 -2.9 -2.3 -2.4 1.5 12.2 12.3
CAO (Cagliari) -23155.7 -23264.4 -23376.1 -23492.8 -23604.7 -23716.5 -23827.1 1.5 20.0 20.1
CH (Bern-Wabern) 1.8 1.8 2.0 1.8 1.2 0.0 -1.3 0.3 2.5 2.5
CNES (Toulouse) -1.5 1.3 4.4 6.5 8.5 9.3 6.6 0.3 2.9 2.9
CNM (Queretaro) 2.0 -3.3 -4.7 -9.7 -7.5 -3.7 -1.3 2.5 11.2 11.5
CNMP (Panama) -0.5 -11.9 -6.3 -12.0 -3.8 -9.5 -10.0 0.7 7.3 7.4
DFNT (Tunis) 570.6 826.5 1052.5 1296.9 1529.3 313.9 543.5 0.7 20.0 20.0 (1)
DLR (Oberpfaffenhofen) - - - - - - -
DMDM (Belgrade) 12.5 16.6 14.2 11.3 1.9 0.1 -10.4 0.3 3.3 3.3
DTAG (Frankfurt/M) -23.8 -12.3 1.0 6.3 10.7 19.7 24.5 0.3 2.8 2.8
EIM (Thessaloniki) 0.0 5.2 0.9 4.6 -2.7 -3.1 2.9 4.0 11.2 11.9
ESTC (Noordwijk) -2.1 -0.7 -0.2 -0.1 -0.1 -1.0 -3.5 0.3 2.7 2.7
HKO (Hong Kong) 667.1 668.9 662.8 676.8 684.3 696.7 696.3 0.5 2.9 3.0
ICE (San Jose) -38.3 -34.8 -22.6 -22.8 -29.4 -24.7 -31.3 3.0 20.0 20.2
IDN (Serpong-Tangerang) 2307.9 2330.6 2356.8 2396.0 2408.7 2411.1 2425.0 0.3 2.8 2.8
IFAG (Wettzell) -759.7 -763.2 -769.4 -771.9 -771.9 -770.5 -772.5 0.3 3.1 3.1
IGNA (Buenos Aires) - - - - - - -
IMBH (Sarajevo) -0.9 -1.8 -0.3 -2.2 -1.7 -2.9 -1.8 0.5 2.7 2.8
INCP (Lima) -51.4 -64.7 -74.8 -68.7 -71.6 -71.7 -62.7 5.0 20.0 20.6
INM (Bogota D.C.) -81.1 -87.8 -84.7 -88.4 -96.3 -90.9 -92.5 1.5 20.0 20.1
INPL (Jerusalem) -40.5 -37.1 -41.9 -53.3 -61.8 -66.6 -67.3 0.3 7.2 7.2
INTI (Buenos Aires) 60.0 65.8 59.9 54.0 52.5 40.3 45.5 2.5 20.0 20.2
INXE (Rio de Janeiro) -15.4 -19.2 -26.9 -17.2 -17.7 -15.5 -2.1 0.3 20.0 20.0
IPQ (Caparica) 240.2 238.7 248.4 245.5 240.9 248.4 243.0 0.5 20.0 20.0
IT (Torino) -4.6 -4.3 -3.5 -2.3 -0.9 0.8 1.9 0.3 1.3 1.4
JATC (Lintong) 0.7 -0.7 -1.0 0.3 0.6 0.6 -0.5 0.3 2.8 2.8
JV (Kjeller) -22.5 -24.0 -5.8 2.4 12.5 9.2 22.8 0.3 4.3 4.3
KRIS (Daejeon) 8.1 7.6 2.5 2.4 2.6 1.9 1.1 0.3 3.1 3.1
LRTE (Sao Carlos) -32.4 -31.7 -29.9 -29.1 -27.2 -17.6 -9.5 0.3 20.0 20.0
LT (Vilnius) 808.7 821.7 800.4 789.8 828.9 826.4 796.4 0.4 2.8 2.8
LUX (Belvaux) 9.9 11.3 16.4 20.7 26.5 24.4 22.4 0.3 2.9 2.9
LV (Riga) -197.7 -215.7 -233.7 -252.4 -243.4 -229.0 -242.3 1.5 12.2 12.3
MASM (Bayanzurkh) -444.5 -566.9 -675.2 -783.3 -154.7 -269.9 -386.1 0.4 2.8 2.8 (2)
MBM (Podgorica) 829.8 846.4 861.7 884.5 904.5 929.1 956.2 0.3 20.0 20.0
MIKE (Espoo) 10.4 9.6 9.2 9.0 8.2 7.8 7.8 0.3 2.6 2.7
MSL (Lower Hutt) 7.8 10.3 18.5 3.3 5.9 7.5 17.7 1.5 20.0 20.1
NAO (Mizusawa) 114.8 120.8 120.7 121.7 129.3 133.3 139.1 2.0 20.0 20.1
NICT (Tokyo) 0.0 2.5 4.8 6.0 6.1 5.5 6.8 0.3 2.1 2.2
NIM (Beijing) -1.4 -1.4 -1.5 -1.4 -1.2 -0.7 -0.8 0.3 2.1 2.1
NIMB (Bucharest) 452.2 106.7 -237.4 -588.4 -935.2 -1281.0 -1634.6 0.4 7.4 7.5
NIMT (Pathumthani) - - - - - - -
NIS (Cairo) 4.6 5.2 -0.6 -8.4 -15.1 -17.9 -23.1 0.7 20.0 20.0
NIST (Boulder) 1.3 1.6 1.2 1.1 1.0 0.9 0.0 0.3 2.1 2.1
NMIJ (Tsukuba) 3.0 3.6 2.2 3.5 6.7 8.5 8.7 0.3 3.3 3.3
NMLS (Sepang) -2044.5 -2023.9 -1996.9 -1968.6 -1938.2 -1908.8 -1880.9 1.5 3.3 3.6
NPL (Teddington) 0.0 0.0 0.3 -0.3 -0.8 -0.7 -0.8 0.3 2.7 2.7
NPLI (New-Delhi) -1.4 -1.4 -1.5 -1.4 -1.4 -1.1 -0.7 0.3 2.8 2.8
NRC (Ottawa) 7.8 15.8 14.8 8.8 12.4 10.5 6.3 0.3 2.9 3.0
NRL (Washington DC) 3.2 0.9 -2.9 -2.2 -1.7 -1.1 -3.4 0.3 19.8 19.9
NSAI (Dublin) -91.1 -94.7 -100.3 -109.7 -112.5 -117.7 -131.0 0.3 7.0 7.1
NTSC (Lintong) 0.8 0.4 1.0 1.9 1.6 0.6 -1.0 0.3 2.4 2.5
ONBA (Buenos Aires) 752.2 770.5 778.2 777.1 792.1 793.3 775.9 2.0 11.2 11.4
ONRJ (Rio de Janeiro) 5.4 -3.8 -1.4 2.5 -0.7 -2.2 -0.5 0.4 20.0 20.0
OP (Paris) -0.6 -1.3 -1.7 -1.8 -1.7 -2.4 -2.0 0.3 1.2 1.3
ORB (Bruxelles) -2.5 -2.3 -2.8 -3.4 -3.4 -2.7 -2.7 0.3 2.7 2.7
PL (Warszawa) 0.4 0.7 0.6 0.8 1.0 1.5 2.2 0.4 2.8 2.8
PTB (Braunschweig) -1.4 -1.6 -1.7 -1.8 -1.8 -1.9 -1.9 0.1 0.8 0.8
ROA (San Fernando) -3.0 -2.5 -3.2 -4.1 -3.8 -3.8 -3.0 0.3 1.3 1.3
SASO (Riyadh) -1790.4 -1807.0 -1824.0 -1834.8 -1842.9 -1852.7 -1864.7 0.7 3.0 3.1
SCL (Hong Kong) -152.2 -130.9 -114.4 -106.1 -81.7 -67.7 -54.6 1.0 2.9 3.1
SG (Singapore) 2.7 - 36.5 -7.8 -18.4 -6.4 6.4 0.7 2.8 2.9
SIQ (Ljubljana) 160.9 162.9 157.0 177.3 178.8 202.4 214.8 0.3 3.7 3.7
SL (Colombo) 259.4 264.9 - - 69.7 - - 0.3 2.7 2.7
SMD (Bruxelles) 1.8 3.7 4.5 12.6 6.5 10.6 14.5 0.3 3.1 3.1
SMU (Bratislava) -39.0 -42.7 -45.5 -43.6 -23.1 -18.5 -19.7 1.5 12.2 12.3
SP (Boras) -1.1 -1.3 -1.4 -1.2 -1.0 -1.1 -1.2 0.3 1.3 1.3
SU (Moskva) -2.2 -2.3 -2.2 -2.1 -2.2 -2.5 -2.4 0.3 2.0 2.0
TL (Chung-Li) -0.1 -1.1 -1.5 -1.6 -2.0 -1.9 -2.2 0.3 2.2 2.2
TP (Praha) -15.1 -16.4 -11.6 -6.4 -1.3 9.9 16.3 0.3 2.7 2.7
UA (Kharkov) 14.2 3.8 -15.4 -14.2 -9.9 -4.5 -12.4 1.5 7.1 7.3
UAE (Abu Dhabi) 15.2 9.1 13.4 15.5 12.0 16.3 16.3 4.0 7.6 8.6
UME (Gebze-Kocaeli) -0.5 -2.5 -7.2 -10.4 -11.8 -12.5 -12.5 0.3 3.3 3.3
USNO (Washington DC) 1.0 0.3 -0.2 -0.3 -0.9 -1.0 -1.1 0.2 1.4 1.5
VMI (Ha Noi) -1.8 -6.2 -9.0 -11.4 2.8 1.2 -0.6 0.3 7.0 7.1
VSL (Delft) -8.2 -1.2 -4.2 -3.2 0.7 0.0 -3.0 0.3 1.9 1.9
ZA (Pretoria) 7.2 2.7 -5.2 -7.0 -6.9 -3.4 -2.4 0.3 2.8 2.8
- Notes on section 1:
(1) DFNT : Apparent time step of UTC(DFNT) of about +1450 ns near MJD 59171.6.
(2) MASM : Time step of UTC(MASM) of -750 ns on MJD 59164.03.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59149 - 59179 6.501x10-13 (2020 OCT 27 - 2020 NOV 26)
New correction 59179 - 59214 6.501x10-13 (2020 NOV 26 - 2020 DEC 31)
New correction foreseen 59214 - 59244 6.501x10-13 (2020 DEC 31 - 2021 JAN 30)

3 - Duration of the TAI scale interval d.

Table 1: Estimate of d by individual PSFS measurements and corresponding uncertainty.
All values are expressed in 10-15 and are valid only for the stated period of estimation.
Standard Period of d uA uB uA/Lab uB/Lab ul/Tai u uSrep Ref(uS) Ref(uB) uB(Ref) Uptime LastRep Nrep3y Steer Note
Estimation %
PTB-CS1 59149 59179 2.05 8.00 8.00 0.00 0.00 0.07 11.31 PFS/NA T148 8.00 100.0 T394 36 Y (1)
PTB-CS2 59149 59179 -0.49 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T394 35 Y (1)
METAS-FOC2 59149 59179 -1.71 0.09 1.36 0.26 0.04 0.20 1.40 PFS/NA T371 1.99 65.3 T392 7 Y (2)
NPL-CsF2 59149 59179 0.24 0.14 0.20 0.04 0.00 0.20 0.32 PFS/NA T284 0.23 96.8 T394 10 Y (3)
SYRTE-FO1 59149 59179 -0.22 0.20 0.33 0.06 0.00 0.20 0.44 PFS/NA T301 0.37 95.5 T394 33 Y (4)
SYRTE-FO2 59149 59179 0.32 0.20 0.22 0.06 0.00 0.20 0.36 PFS/NA T301 0.23 91.3 T394 33 Y (4)
SYRTE-FORb 59149 59179 0.05 0.20 0.26 0.06 0.00 0.20 0.39 0.6 [1] T328 0.34 95.2 T394 34 Y (4)
PTB-CSF1 59149 59179 0.04 0.07 0.29 0.01 0.00 0.07 0.31 PFS/NA T371 0.28 97.0 T394 27 Y (5)
PTB-CSF2 59149 59179 -0.15 0.11 0.17 0.01 0.00 0.07 0.21 PFS/NA T370 0.17 97.2 T394 39 Y (5)
SU-CsFO2 59149 59179 -0.10 0.24 0.22 0.12 0.00 0.20 0.40 PFS/NA T315 0.50 83.6 T394 29 Y (6)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 02 DEC. 2020 by CH
(3) Report 30 NOV. 2020 by NPL
(4) Report 01 DEC. 2020 by LNE-SYRTE
(5) Report 01 DEC. 2020 by PTB
(6) Report 30 NOV. 2020 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 MJD 58789-59179, and corresponding uncertainties.

Period of estimation d u
59149-59179 -0.01x10-15 0.12x10-15 (2020 OCT 27 - 2020 NOV 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'= 6.4 ns

2020 0h UTC MJD C0'/ns N0 C1'/ns N1'
OCT 27 59149 1.9 89 28.6 86
OCT 28 59150 2.6 90 26.4 90
OCT 29 59151 2.6 89 24.0 89
OCT 30 59152 2.3 89 24.0 89
OCT 31 59153 2.0 89 23.6 88
NOV 1 59154 0.2 90 23.7 84
NOV 2 59155 0.7 89 24.7 86
NOV 3 59156 3.5 89 26.6 88
NOV 4 59157 4.0 89 26.3 85
NOV 5 59158 3.1 89 23.0 83
NOV 6 59159 1.9 89 22.6 84
NOV 7 59160 1.0 89 24.3 87
NOV 8 59161 1.1 90 24.8 86
NOV 9 59162 2.6 89 24.3 84
NOV 10 59163 3.5 89 24.2 87
NOV 11 59164 4.3 89 25.0 88
NOV 12 59165 2.1 90 25.6 86
NOV 13 59166 0.6 89 24.7 88
NOV 14 59167 -0.7 89 24.2 86
NOV 15 59168 0.3 88 22.6 89
NOV 16 59169 3.7 90 21.2 90
NOV 17 59170 2.5 89 20.9 86
NOV 18 59171 2.3 89 21.9 87
NOV 19 59172 1.4 89 24.0 87
NOV 20 59173 0.0 90 23.1 83
NOV 21 59174 0.9 89 20.8 76
NOV 22 59175 1.9 89 22.3 86
NOV 23 59176 0.5 89 22.4 87
NOV 24 59177 -1.0 90 21.2 90
NOV 25 59178 0.9 89 21.5 86
NOV 26 59179 0.4 89 21.5 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 GPSPPP AO_4 /PT13 1014-2018 / 1001-2018 0.3 2.7 1.1
APL /PTB GPSPPP AP02 /PT13 NC / 1001-2018 0.3 20.0
AUS /PTB GPSPPP AU04 /PT13 1002-2010 / 1001-2018 0.3 11.2 10.0
BEV /PTB GPSPPP BE1_ /PT13 1012-2016 / 1001-2018 0.3 3.1 1.9
BFKH/PTB GPS MC MK01 /PT13 NC / 1001-2018 1.5 20.0
BIM /PTB GPSPPP BM51 /PT13 2007-2019 / 1001-2018 0.7 7.0 0.8
BIRM/PTB GPS P3 BI22 /PT13 1016-2018 / 1001-2018 0.7 2.6 0.8
BOM /PTB GPS MC MABM /PT13 NA_Al / 1001-2018 1.5 7.5 2.6 +4.4 2003
BY /PTB GPS MC BY46 /PT13 2001-2008 / 1001-2018 1.5 12.2 10.0
CAO /PTB GPS MC CA__ /PT13 NC / 1001-2018 1.5 20.0
CNES/PTB GPSPPP CS21 /PT13 1015-2018 / 1001-2018 0.3 2.8 1.2
CNM /PTB GPS MC CN00 /PT13 NA_Al / 1001-2018 2.5 11.2 10.0 -27.3 0804
CNMP/PTB GPS P3 MP1_ /PT13 NA_Al / 1001-2018 0.7 7.3 2.1 41.7 1807
DFNT/PTB GPS P3 DN__ /PT13 NC_Al / 1001-2018 0.7 20.0 10.3 1507
DLR /PTB NL
DMDM/PTB GPSPPP ZM68 /PT13 1011-2016 / 1001-2018 0.3 3.2 1.9
DTAG/PTB GPSPPP DT05 /PT13 1012-2019 / 1001-2018 0.3 2.7 0.8
EIM /PTB GPS MC EI__ /PT13 NA / 4.0 11.2 10.0
ESTC/PTB GPSPPP ES07 /PT13 1013-2020 / 1001-2018 0.3 2.6 0.8
HKO /PTB GPSPPP HKO2 /PT13 1011-2018 / 1001-2018 0.5 2.8 1.3
ICE /PTB GPS MC CE1_ /PT13 NC / 1001-2018 3.0 20.0
IDN /PTB GPSPPP KI01 /PT13 1017-2018 / 1001-2018 0.3 2.7 0.9
IFAG/PTB GPSPPP IF14 /PT13 1016-2017 / 1001-2018 0.3 3.0 1.4
IGNA/PTB NL
IMBH/PTB GPSPPP BH02 /PT13 1011-2019 / 1001-2018 0.5 2.6 0.8
INCP/PTB GPS MC CP__ /PT13 NC / 1001-2018 5.0 20.0
INM /PTB GPS MC IC__ /PT13 NC / 1001-2018 1.5 20.0
INPL/PTB GPSPPP IL06 /PT13 2003-2016 / 1001-2018 0.3 7.2 1.8
INTI/PTB GPS MC IN__ /PT13 NC / 1001-2018 2.5 20.0
INXE/PTB GPSPPP NXRA /PT13 NC / 1001-2018 0.3 20.0
IPQ /PTB GPSPPP IP05 /PT13 NC / 1001-2018 0.5 20.0
JATC/PTB GPSPPP JA01 /PT13 1201-2018 / 1001-2018 0.3 2.7 1.1
JV /PTB GPSPPP JV02 /PT13 1101-2017 / 1001-2018 0.3 4.2 1.4
KRIS/PTB GPSPPP KRG1 /PT13 1017-2017 / 1001-2018 0.3 3.0 1.6
LRTE/PTB GPSPPP LRRC /PT13 NC / 1001-2018 0.3 20.0
LT /PTB GPSPPP LT02 /PT13 1014-2018 / 1001-2018 0.4 2.7 1.1
LUX /PTB GPSPPP LU01 /PT13 1012-2018 / 1001-2018 0.3 2.8 1.3
LV /PTB GPS MC LV01 /PT13 2001-2007 / 1001-2018 1.5 12.2 10.0
MASM/PTB GPSPPP MN__ /PT13 1019-2018 / 1001-2018 0.4 2.7 1.0
MBM /PTB GPSPPP ME01 /PT13 NC / 1001-2018 0.3 20.0
MIKE/PTB GPSPPP MI04 /PT13 1016-2019 / 1001-2018 0.3 2.6 0.8
MSL /PTB GPS P3 MS0_ /PT13 NC / 1001-2018 1.5 20.0
NAO /PTB GPS MC NAT2 /PT13 NC / 1001-2018 2.0 20.0
NICT/PTB GPSPPP NC4S /PT13 1001-2018 / 1001-2018 0.3 2.1 1.2
NIM /PTB GPSPPP IM06 /PT13 1001-2018 / 1001-2018 0.3 2.0 1.1
NIMB/PTB GPSPPP MB02 /PT13 NA_Al / 1001-2018 0.4 7.4 2.3 32.2 1611
NIMT NL
NIS /PTB GPS P3 IS__ /PT13 NC_Al / 1001-2018 0.7 20.0 +16.4 1303
NMIJ/PTB GPSPPP NM0D /PT13 1001-2014 / 1001-2018 0.3 3.2 2.6
NMLS/PTB GPS MC LSM1 /PT13 1013-2017 / 1001-2018 1.5 3.2 1.7
NPL /PTB GPSPPP NPL1 /PT13 1015-2019 / 1001-2018 0.3 2.6 0.8
NPLI/PTB GPSPPP LI2P /PT13 1013-2018 / 1001-2018 0.3 2.8 1.3
NRC /PTB GPSPPP NRC4 /PT13 1019-2017 / 1001-2018 0.3 2.9 1.5
NRL /PTB GPSPPP RL2_ /PT13 NC / 1001-2018 0.3 20.0
NSAI/PTB GPSPPP IE01 /PT13 2022-2019 / 1001-2018 0.3 7.0 0.8
NTSC/PTB GPSPPP NTP1 /PT13 1001-2016 / 1001-2018 0.3 2.5 1.9
ONBA/PTB GPS MC ON__ /PT13 1002-2004 / 1001-2018 2.0 11.2 10.0
ONRJ/PTB GPSPPP RJ03 /PT13 NC_Al / 1001-2018 0.4 20.0 -11.7 1912
ORB /PTB GPSPPP OR5Z /PT13 1011-2020 / 1001-2018 0.3 2.6 0.8
PL /PTB GPSPPP PL_3 /PT13 1014-2018 / 1001-2018 0.4 2.7 1.1
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2018 0.7 2.9 1.4
SCL /PTB GPS P3 SC05 /PT13 1011-2018 / 1001-2018 1.0 2.8 1.3
SG /PTB GPS P3 SG02 /PT13 1019-2018 / 1001-2018 0.7 2.7 0.9
SIQ /PTB GPSPPP SI01 /PT13 1013-2019 / 1001-2018 0.3 3.6 0.8
SL /PTB GPSPPP SL01 /PT13 1017-2018 / 1001-2018 0.3 2.6 0.8
SMD /PTB GPSPPP SD01 /PT13 1014-2017 / 1001-2018 0.3 3.0 1.6
SMU /PTB GPS MC SM00 /PT13 NA_Al / 1001-2018 1.5 12.2 10.0 57.8 0908
SU /PTB GPSPPP SU31 /PT13 1001-2018 / 1001-2018 0.3 2.1 1.2
TL /PTB GPSPPP TLT1 /PT13 1001-2018 / 1001-2018 0.3 2.1 1.2
TP /PTB GPSPPP TP02 /PT13 1015-2019 / 1001-2018 0.3 2.6 0.8
UA /PTB GPS MC UA05 /PT13 2003-2018 / 1001-2018 1.5 7.1 1.1
UAE /PTB GPS MC AE__ /PT13 2001-2016 / 1001-2018 4.0 7.6 2.8
UME /PTB GPSPPP UM01 /PT13 1011-2016 / 1001-2018 0.3 3.2 2.0
VMI /PTB GPSPPP VM02 /PT13 2001-2019 / 1001-2018 0.3 7.0 0.8
ZA /PTB GPSPPP ZA02 /PT13 1018-2018 / 1001-2018 0.3 2.7 1.0
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
CH /PTB TWGPPP CH01 /PTB05 0284-2012 0.3 2.4 1.9
IT /PTB TWGPPP IT02 /PTB05 0502-2019 0.3 1.1 0.3
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 2.0 1.5
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.0 0.2
ROA /PTB TWGPPP ROA01 /PTB05 0504-2019 0.3 1.0 0.3
SP /PTB TWGPPP SP01 /PTB05 0496-2019 0.3 1.1 0.3
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.7 1.1
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.7 1.2