CIRCULAR T 393 ISSN 1143-1393
2020 OCTOBER 09, 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 AUG 28 SEP 2 SEP 7 SEP 12 SEP 17 SEP 22 SEP 27 Uncertainty/ns Notes
MJD 59089 59094 59099 59104 59109 59114 59119 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -0.1 0.0 -0.6 -0.9 -1.2 -1.6 -1.4 0.3 2.8 2.8
APL (Laurel) -2.9 -3.0 -3.2 -0.1 0.3 0.6 1.0 0.3 19.6 19.6
AUS (Sydney) -422.1 -408.0 -401.1 -377.2 -386.0 -382.4 -378.3 0.3 6.0 6.1
BEV (Wien) -3.1 -3.6 -14.8 -24.3 -31.3 -32.2 -24.4 0.3 3.2 3.2
BFKH (Budapest) 1274.9 1301.8 1330.4 1345.2 1377.3 1399.0 1422.3 1.5 20.0 20.1
BIM (Sofiya) 13409.0 13440.6 13441.5 13463.9 13505.5 13547.1 13568.6 0.7 7.0 7.1
BIRM (Beijing) -0.7 -1.6 -1.6 -1.4 -0.7 -1.6 1.2 0.7 2.7 2.8
BOM (Skopje) -3811.4 - -3837.1 - -3874.3 -3889.2 -3911.5 1.5 7.4 7.6
BY (Minsk) -2.8 -3.5 -3.4 -2.7 -1.6 -1.9 -3.7 1.5 12.2 12.3
CAO (Cagliari) -21845.9 -21951.3 -22059.0 -22173.0 -22283.2 -22395.2 -22497.4 1.5 20.0 20.1
CH (Bern-Wabern) 1.7 -0.5 -1.8 -1.4 0.7 1.6 1.9 0.3 2.4 2.4
CNES (Toulouse) -8.3 -9.9 -11.5 -13.7 -14.7 -13.0 -11.4 0.3 2.8 2.8
CNM (Queretaro) 12.2 14.5 10.7 8.0 8.2 5.1 5.5 2.5 11.2 11.5
CNMP (Panama) 2.7 -1.3 0.5 -5.0 4.9 2.3 2.3 0.7 7.3 7.4
DFNT (Tunis) 8541.9 8777.8 9007.2 9247.3 9477.1 9725.6 9974.2 0.7 20.0 20.0
DLR (Oberpfaffenhofen) 21.7 14.1 12.4 9.7 -1.0 -5.8 -15.5 0.7 2.7 2.8
DMDM (Belgrade) 8.3 7.6 6.8 6.9 11.1 -1.0 -8.3 0.3 3.2 3.2
DTAG (Frankfurt/M) -12.0 -20.9 -32.6 -39.9 -49.8 -41.3 -35.1 0.3 2.8 2.8
EIM (Thessaloniki) 5.5 9.2 1.5 -1.8 8.0 6.5 5.7 4.0 11.2 11.9
ESTC (Noordwijk) 2.4 -0.9 -2.1 -1.6 -1.9 -0.9 -1.0 0.3 3.1 3.1
HKO (Hong Kong) 563.6 571.6 567.5 575.5 585.7 588.5 602.3 0.4 2.9 2.9
ICE (San Jose) -57.8 -51.2 -54.8 -58.9 -53.0 -46.1 -48.4 3.0 20.0 20.2
IDN (Serpong-Tangerang) 2228.8 2225.2 2242.6 2253.4 2278.0 2282.4 2275.6 0.3 2.7 2.7
IFAG (Wettzell) -771.6 -774.0 -775.9 -780.7 -770.1 -771.1 -765.0 0.3 3.1 3.2
IGNA (Buenos Aires) - - - - - - -
IMBH (Sarajevo) -0.8 -0.4 -0.6 -0.3 0.2 2.8 -1.2 0.4 2.7 2.7
INCP (Lima) 64.5 62.7 35.9 38.0 23.8 12.2 9.7 5.0 20.0 20.6
INM (Bogota D.C.) -51.6 -49.8 -54.7 -56.5 -66.1 -55.3 -55.5 1.5 20.0 20.1
INPL (Jerusalem) -14.5 -9.6 -13.1 -22.6 -26.2 -22.2 -31.6 0.3 7.2 7.2
INTI (Buenos Aires) 24.8 24.2 24.9 25.9 44.1 43.3 55.0 2.5 20.0 20.2
INXE (Rio de Janeiro) -48.0 -56.3 -52.3 -38.5 -23.6 -6.0 -3.9 0.3 20.0 20.0
IPQ (Caparica) 244.6 246.9 246.1 237.7 242.5 236.0 - 0.5 20.0 20.0
IT (Torino) -0.4 -0.1 -0.7 -1.3 -0.7 0.4 1.1 0.3 1.2 1.3
JATC (Lintong) -3.4 -1.7 -2.3 -1.5 -1.2 0.1 -0.1 0.3 2.8 2.8
JV (Kjeller) -7.2 -12.9 -15.5 -21.6 -19.8 -24.8 -22.0 0.3 4.3 4.3
KRIS (Daejeon) 5.3 6.1 6.7 7.3 7.7 7.9 8.2 0.3 3.1 3.1
LRTE (Sao Carlos) -26.5 -30.7 -37.1 -41.1 -46.5 -54.1 -25.0 0.3 20.0 20.0
LT (Vilnius) 967.1 931.7 945.6 946.2 928.7 917.7 909.9 0.3 2.8 2.8
LUX (Belvaux) -34.3 -31.8 -28.5 -23.8 -19.2 -16.6 -14.8 0.3 2.9 2.9
LV (Riga) -79.7 -88.6 -90.3 -106.8 -116.9 -135.8 -146.5 1.5 12.2 12.3
MASM (Bayanzurkh) -483.9 -513.1 -542.4 -581.4 -626.1 -666.2 -102.7 0.4 2.8 2.8 (1)
MBM (Podgorica) 473.2 504.6 532.3 571.1 596.0 619.7 641.7 0.3 20.0 20.0
MIKE (Espoo) 18.5 17.9 17.6 17.2 16.3 15.3 14.2 0.3 2.6 2.6
MSL (Lower Hutt) 11.3 14.5 -16.3 -41.3 -29.8 -12.6 12.1 1.5 20.0 20.1
NAO (Mizusawa) 90.7 84.6 85.1 89.3 93.9 100.5 96.5 2.0 20.0 20.1
NICT (Tokyo) -2.0 -4.6 -4.2 -4.6 -4.7 -5.0 -4.4 0.3 2.0 2.0
NIM (Beijing) -2.7 -2.8 -2.5 -2.5 -2.4 -2.5 -2.1 0.3 2.0 2.0
NIMB (Bucharest) 4561.9 4216.5 3882.2 3543.9 3202.4 2855.9 2511.8 0.4 7.4 7.4
NIMT (Pathumthani) - - - - - - -
NIS (Cairo) 3.8 - - 105.0 100.6 79.0 55.1 0.7 20.0 20.0
NIST (Boulder) -0.9 -0.7 -0.7 -0.6 0.3 0.8 1.4 0.3 2.1 2.1
NMIJ (Tsukuba) 16.3 15.8 14.5 13.9 9.6 8.8 8.7 0.3 3.2 3.2
NMLS (Sepang) -2328.3 -2312.0 -2301.8 -2274.3 -2252.9 -2220.6 -2200.4 1.5 3.2 3.5
NPL (Teddington) 0.9 1.3 1.0 0.5 0.0 -0.4 -0.2 0.3 2.7 2.7
NPLI (New-Delhi) -0.8 -1.5 -1.8 -2.3 -2.5 -2.4 -1.7 0.3 2.8 2.8
NRC (Ottawa) -11.2 -10.6 -12.5 -16.3 -11.0 -20.3 -25.8 0.3 2.9 3.0
NRL (Washington DC) -1.6 0.8 5.4 1.0 -2.0 2.2 6.9 0.3 20.0 20.0
NTSC (Lintong) 0.2 -0.6 0.5 0.9 0.2 1.4 1.1 0.3 2.4 2.4
ONBA (Buenos Aires) 635.5 639.0 645.5 653.8 662.6 684.7 698.4 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -0.7 0.2 -1.1 -1.0 -0.9 5.1 15.1 0.4 20.0 20.0
OP (Paris) 0.3 0.5 0.5 0.5 0.3 0.0 0.0 0.3 1.2 1.2
ORB (Bruxelles) 5.1 3.8 2.5 1.8 0.7 -1.1 -1.1 0.3 2.7 2.7
PL (Warszawa) 1.4 1.8 2.2 2.3 1.9 1.5 1.8 0.4 2.8 2.8
PTB (Braunschweig) 0.7 0.6 0.4 0.1 -0.1 -0.3 -0.4 0.1 0.7 0.7
ROA (San Fernando) -1.7 -2.2 -2.6 -3.6 -3.1 -2.8 -3.4 0.3 1.2 1.3
SASO (Riyadh) -1640.4 -1658.1 -1669.4 -1678.6 -1693.5 -1698.0 -1708.9 0.7 2.9 3.0
SCL (Hong Kong) -142.0 -155.3 -167.2 -173.0 -172.6 -188.0 -184.8 1.0 2.9 3.1
SG (Singapore) -15.5 6.8 33.4 8.9 -3.2 -4.3 -1.8 0.3 2.7 2.7
SIQ (Ljubljana) 140.5 131.2 112.5 124.2 138.2 152.2 158.4 0.3 3.7 3.7
SL (Colombo) - - 69.4 68.1 90.5 93.3 88.5 0.3 2.7 2.7
SMD (Bruxelles) -9.5 -5.0 -1.3 -1.2 -2.0 2.0 -1.9 0.3 3.1 3.1
SMU (Bratislava) -70.9 -60.8 -61.1 -47.8 -48.5 -49.3 -37.5 1.5 12.2 12.3
SP (Boras) 0.5 0.1 -0.2 -0.6 -1.0 -1.5 -1.9 0.3 1.2 1.2
SU (Moskva) 1.0 0.0 -0.1 -0.3 -1.0 -1.2 -1.7 0.7 1.9 2.0
TL (Chung-Li) -1.1 -0.6 0.0 0.0 0.0 -0.3 0.2 0.3 2.2 2.2
TP (Praha) 32.5 34.0 29.7 18.2 4.4 2.9 -4.0 0.3 2.7 2.7
UA (Kharkov) 15.4 17.4 16.3 7.3 15.2 10.6 7.6 1.5 7.1 7.3
UAE (Abu Dhabi) 13.2 15.0 6.0 16.6 24.8 10.7 7.9 4.0 7.5 8.5
UME (Gebze-Kocaeli) 1.2 -1.7 -13.2 -2.6 2.3 0.9 3.6 0.3 3.3 3.3
USNO (Washington DC) -0.4 -0.6 0.0 0.3 0.7 0.6 -0.2 0.2 1.3 1.4
VMI (Ha Noi) -2.5 2.2 3.8 5.4 3.1 -5.6 -1.4 0.3 7.0 7.0
VSL (Delft) -12.8 -16.5 -10.5 -17.3 -12.6 -2.9 -1.5 0.3 1.8 1.9
ZA (Pretoria) -14.3 -17.0 -5.3 4.0 2.3 -0.5 0.0 0.3 2.8 2.8
- Note on section 1:
(1) MASM : Time step of -600 ns on MJD 59114.39.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59089 - 59119 6.497x10-13 (2020 AUG 28 - 2020 SEP 27)
New correction 59119 - 59149 6.499x10-13 (2020 SEP 27 - 2020 OCT 27)
New correction foreseen 59149 - 59179 6.501x10-13 (2020 OCT 27 - 2020 NOV 26)

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 59089 59119 -11.50 8.00 8.00 0.00 0.00 0.07 11.31 PFS/NA T148 8.00 100.0 T392 36 Y (1)
PTB-CS2 59089 59119 -8.65 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T392 35 Y (1)
IT-CsF2 59089 59119 -0.96 0.37 0.17 0.22 0.01 0.20 0.50 PFS/NA T318 0.19 78.0 T391 11 Y (2)
NRC-FCs2 59089 59119 -0.46 0.12 0.37 0.10 0.00 0.20 0.45 PFS/NA T389 0.23 98.6 T392 11 Y (3)
SYRTE-FO1 59089 59119 -0.63 0.15 0.33 0.05 0.00 0.20 0.42 PFS/NA T301 0.37 96.5 T392 30 Y (4)
SYRTE-FO2 59089 59109 -0.30 0.20 0.23 0.08 0.00 0.28 0.42 PFS/NA T301 0.23 90.0 T392 31 Y (4)
SYRTE-FOM 59089 59119 -0.31 0.30 0.58 0.06 0.00 0.20 0.68 PFS/NA T372 0.70 90.8 T392 22 Y (4)
SYRTE-FORb 59089 59119 -0.21 0.20 0.25 0.05 0.00 0.20 0.38 0.6 [1] T328 0.34 97.5 T392 32 Y (4)
PTB-CSF1 59089 59119 -0.62 0.08 0.40 0.05 0.00 0.07 0.42 PFS/NA T371 0.28 88.6 T391 27 Y (5)
PTB-CSF2 59089 59119 -0.56 0.11 0.17 0.02 0.00 0.07 0.21 PFS/NA T370 0.17 94.7 T392 39 Y (5)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 05 OCT. 2020 by INRIM
(3) Report 01 OCT. 2020 by NRC
(4) Report 30 SEP. 2020 by LNE-SYRTE
(5) Report 29 SEP. 2020 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 MJD 58729-59119, and corresponding uncertainties.

Period of estimation d u
59089-59119 -0.54x10-15 0.14x10-15 (2020 AUG 28 - 2020 SEP 27)

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'= 6.3 ns

2020 0h UTC MJD C0'/ns N0 C1'/ns N1'
AUG 28 59089 2.6 89 27.6 79
AUG 29 59090 1.3 90 27.5 81
AUG 30 59091 1.5 89 27.9 87
AUG 31 59092 1.4 89 27.7 89
SEP 1 59093 1.6 89 26.8 87
SEP 2 59094 2.2 90 26.0 87
SEP 3 59095 2.2 88 26.3 87
SEP 4 59096 1.3 89 27.4 89
SEP 5 59097 1.4 89 27.2 89
SEP 6 59098 2.4 90 24.2 90
SEP 7 59099 3.6 89 24.1 88
SEP 8 59100 3.9 89 26.8 82
SEP 9 59101 4.3 89 27.1 89
SEP 10 59102 3.3 90 26.2 89
SEP 11 59103 2.0 89 28.2 89
SEP 12 59104 1.6 89 29.6 88
SEP 13 59105 2.4 89 27.4 89
SEP 14 59106 3.9 90 24.8 88
SEP 15 59107 2.7 89 24.7 83
SEP 16 59108 2.8 89 25.8 85
SEP 17 59109 3.0 89 25.3 89
SEP 18 59110 1.9 90 24.5 89
SEP 19 59111 2.1 89 25.5 89
SEP 20 59112 3.8 89 26.6 86
SEP 21 59113 4.3 89 25.6 89
SEP 22 59114 3.0 90 23.7 89
SEP 23 59115 3.9 89 23.3 88
SEP 24 59116 2.6 89 24.3 84
SEP 25 59117 1.3 89 24.6 89
SEP 26 59118 2.6 90 24.0 88
SEP 27 59119 0.6 89 23.4 82

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 1.0
APL /PTB GPSPPP AP02 /PT13 NC / 1001-2018 0.3 20.0
AUS /PTB GPSPPP AU04 /PT13 1002-2010 / 1001-2018 0.3 6.0 3.4
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 0.7
BIRM/PTB GPS P3 BI41 /PT13 1016-2018 / 1001-2018 0.7 2.6 0.7
BOM /PTB GPS MC MABM /PT13 NA_Al / 1001-2018 1.5 7.4 2.5 +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 2.7 1.1
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 GPS P3 DL05 /PT13 1014-2019 / 1001-2018 0.7 2.6 0.7
DMDM/PTB GPSPPP ZM68 /PT13 1011-2016 / 1001-2018 0.3 3.1 1.9
DTAG/PTB GPSPPP DT05 /PT13 1012-2019 / 1001-2018 0.3 2.7 0.7
EIM /PTB GPS MC EI__ /PT13 NA / 4.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT13 1019-2016 / 1001-2018 0.3 3.0 1.6
HKO /PTB GPSPPP HKO2 /PT13 1011-2018 / 1001-2018 0.4 2.8 1.2
ICE /PTB GPS MC CE1_ /PT13 NC / 1001-2018 3.0 20.0
IDN /PTB GPSPPP KI01 /PT13 1017-2018 / 1001-2018 0.3 2.6 0.8
IFAG/PTB GPSPPP IF20 /PT13 1016-2017 / 1001-2018 0.3 3.1 1.3
IGNA/PTB NL
IMBH/PTB GPSPPP BH02 /PT13 1011-2019 / 1001-2018 0.4 2.6 0.7
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 1.0
JV /PTB GPSPPP JV02 /PT13 1101-2017 / 1001-2018 0.3 4.2 1.3
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 0.3 2.7 1.0
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 0.9
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 0.7
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 2.0 1.1
NIM /PTB GPSPPP IM06 /PT13 1001-2018 / 1001-2018 0.3 2.0 1.0
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 3.1 2.5
NMLS/PTB GPS MC LSM1 /PT13 1013-2017 / 1001-2018 1.5 3.1 1.6
NPL /PTB GPSPPP NPL1 /PT13 1015-2019 / 1001-2018 0.3 2.6 0.7
NPLI/PTB GPSPPP LI2P /PT13 1013-2018 / 1001-2018 0.3 2.8 1.2
NRC /PTB GPSPPP NRC4 /PT13 1019-2017 / 1001-2018 0.3 2.9 1.4
NRL /PTB GPSPPP RL2_ /PT13 NC / 1001-2018 0.3 20.0
NTSC/PTB GPSPPP NTP1 /PT13 1001-2016 / 1001-2018 0.3 2.5 1.8
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 0.7
PL /PTB GPSPPP PL_3 /PT13 1014-2018 / 1001-2018 0.4 2.7 1.0
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2018 0.7 2.8 1.3
SCL /PTB GPS P3 SC05 /PT13 1011-2018 / 1001-2018 1.0 2.8 1.2
SG /PTB GPSPPP SG02 /PT13 1019-2018 / 1001-2018 0.3 2.6 0.8
SIQ /PTB GPSPPP SI01 /PT13 1013-2019 / 1001-2018 0.3 3.6 0.7
SL /PTB GPSPPP SL01 /PT13 1017-2018 / 1001-2018 0.3 2.6 0.7
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 GPS P3 SU31 /PT13 1001-2018 / 1001-2018 0.8 2.0 1.1
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 0.7
UA /PTB GPS MC UA05 /PT13 2003-2018 / 1001-2018 1.5 7.1 1.0
UAE /PTB GPS MC AE__ /PT13 2001-2016 / 1001-2018 4.0 7.5 2.8
UME /PTB GPSPPP UM01 /PT13 1011-2016 / 1001-2018 0.3 3.2 1.9
VMI /PTB GPSPPP VM02 /PT13 2001-2019 / 1001-2018 0.3 7.0 0.7
ZA /PTB GPSPPP ZA02 /PT13 1018-2018 / 1001-2018 0.3 2.7 0.9
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
CH /PTB TWGPPP CH01 /PTB05 0284-2012 0.3 2.3 1.9
IT /PTB TWGPPP IT02 /PTB05 0502-2019 0.3 1.0 0.3
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 2.0 1.4
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.0 0.2
ROA /PTB TWGPPP ROA01 /PTB05 0504-2019 0.3 1.0 0.2
SP /PTB TWGPPP SP01 /PTB05 0496-2019 0.3 1.0 0.3
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.6 1.1
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.7 1.2