CIRCULAR T 406 ISSN 1143-1393
2021 NOVEMBER 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 https://webtai.bipm.org/ftp/pub/tai/other-products/notes/explanatory_supplement_v0.6.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 2021 0h UTC SEP 27 OCT 2 OCT 7 OCT 12 OCT 17 OCT 22 OCT 27 Uncertainty/ns Notes
MJD 59484 59489 59494 59499 59504 59509 59514 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AGGO (La Plata) -535.3 -541.6 -527.2 -518.0 186.4 190.2 194.2 1.0 20.0 20.0 (1)
AOS (Borowiec) 5.9 4.1 3.0 2.1 1.5 1.2 0.8 0.3 3.0 3.0
APL (Laurel) -1.0 -1.3 0.9 1.1 1.7 2.0 1.8 0.3 19.5 19.5 (2)
AUS (Sydney) -553.1 -561.0 -564.5 -570.6 -563.8 -563.5 -554.9 0.3 11.2 11.2
BEV (Wien) -7.2 -10.9 -19.0 -25.5 -29.6 -35.2 -41.9 0.3 3.4 3.4
BFKH (Budapest) 3417.5 3449.8 3481.9 3518.3 3542.3 3575.2 3608.5 1.5 20.0 20.1
BIM (Sofiya) 15159.4 15168.7 15211.2 15226.7 15260.8 15283.7 15302.3 0.3 7.1 7.2
BIRM (Beijing) 4.6 -4.4 -3.8 -2.1 -2.6 0.4 - 0.7 2.9 3.0
BOM (Skopje) -432.2 -427.4 -257.7 -300.5 -673.7 - - 10.0 7.5 12.5
BY (Minsk) -3.8 -1.6 -0.5 -0.3 -1.2 -2.1 -2.2 1.5 12.1 12.2
CAO (Cagliari) -30580.1 -30693.1 -30814.8 -30933.9 -31055.3 -31174.2 -31288.7 1.5 20.0 20.1
CH (Bern-Wabern) 2.3 2.6 1.2 0.8 -0.3 -1.7 -3.2 0.3 1.5 1.6
CNES (Toulouse) -5.2 -5.1 -8.4 -9.6 -10.1 -8.3 -5.1 0.3 2.6 2.7
CNM (Queretaro) -12.0 -0.4 -2.5 1.9 4.9 5.8 4.7 1.5 3.9 4.2
CNMP (Panama) 23.1 5.8 -3.0 9.6 17.4 19.1 7.4 0.7 5.2 5.2
DFNT (Tunis) 1104.2 1194.6 1292.4 1367.4 1443.8 1554.9 1642.6 0.7 20.0 20.0
DLR (Oberpfaffenhofen) - - - - - - -
DMDM (Belgrade) -6.1 0.1 8.1 9.5 1.3 0.5 -0.3 0.3 3.4 3.4
DTAG (Frankfurt/M) 16.4 21.0 28.8 - 31.4 36.0 45.5 0.3 2.9 2.9
EIM (Thessaloniki) 2.3 4.9 6.5 -0.7 1.9 0.7 4.6 4.0 11.2 11.9
ESA (Noordwijk) -1.2 -1.2 -1.1 0.3 0.8 0.5 1.1 0.3 2.7 2.7 (3)
HKO (Hong Kong) -15.6 -12.2 -14.0 -10.8 -3.6 -4.1 -7.1 0.7 3.1 3.2
ICE (San Jose) 11.6 21.7 23.7 15.0 6.7 4.0 13.9 0.7 7.1 7.2 (4)
IDN (Serpong-Tangerang) 982.8 984.7 991.0 992.6 1039.0 1037.0 1039.5 0.3 2.9 2.9
IFAG (Wettzell) -816.4 -821.5 -821.4 -819.9 -827.2 -826.8 -822.0 0.3 2.6 2.6
IGNA (Buenos Aires) 8078.1 8132.6 8192.0 8256.3 8322.0 8370.9 8430.2 0.3 20.0 20.0
IMBH (Sarajevo) -1.8 -1.1 -1.4 -1.6 -2.0 0.2 -0.7 0.7 2.9 3.0
INCP (Lima) 466.5 18.9 139.3 265.8 363.4 458.8 574.6 5.0 20.0 20.6 (5)
INM (Bogota D.C.) 95.4 86.2 95.8 80.0 96.0 100.4 117.0 1.5 20.0 20.1
INPL (Jerusalem) -78.7 -83.8 -79.2 -86.2 -84.7 -79.9 -74.5 0.3 7.3 7.3
INTI (Buenos Aires) 4.2 2.3 56.1 -26.7 60.1 -2.0 35.3 5.0 20.0 20.6
INXE (Rio de Janeiro) 15.3 20.0 14.8 14.9 -39.7 14.6 36.5 0.3 2.7 2.8
IPQ (Caparica) 433.0 435.6 437.6 440.2 447.8 454.9 456.4 0.3 20.0 20.0
IT (Torino) 1.1 2.4 3.0 3.7 3.6 3.0 1.9 0.3 1.8 1.8
JATC (Lintong) 1.4 1.9 1.2 1.3 1.7 1.1 0.5 0.3 3.0 3.0
JV (Kjeller) -40.4 -48.2 -63.2 -65.1 -62.8 -73.6 -90.8 0.3 4.4 4.4
KRIS (Daejeon) 8.5 8.5 7.5 7.7 8.4 9.3 9.9 0.3 3.3 3.3
KZ (Astana) 37.8 11.4 17.8 15.3 - 13.8 24.1 10.0 20.0 22.4
LRTE (Sao Carlos) -5.3 -10.2 -21.1 -21.1 5.5 6.0 6.1 0.3 20.0 20.0
LT (Vilnius) 636.1 644.2 646.9 661.9 652.1 633.6 608.5 0.3 3.0 3.0
LUX (Belvaux) -1.9 2.9 6.2 10.5 1.1 2.8 0.0 0.3 2.6 2.7
LV (Riga) -515.0 -518.4 -530.3 -548.9 -549.7 -566.4 -572.7 1.5 12.2 12.3
MASM (Bayanzurkh) -309.2 -314.6 -320.6 -329.5 -331.6 -337.7 -339.4 0.3 3.0 3.0
MBM (Podgorica) 366.0 378.0 388.8 393.6 386.1 379.0 384.5 0.3 20.0 20.0
MIKE (Espoo) 0.9 1.4 1.6 2.0 2.2 2.3 2.3 0.3 2.7 2.7
MSL (Lower Hutt) 18.4 23.6 10.3 3.3 13.5 20.8 25.2 1.5 20.0 20.1
NAO (Mizusawa) 338.8 341.1 337.5 333.1 334.9 330.9 329.6 2.0 20.0 20.1
NICT (Tokyo) -3.0 -3.2 -2.7 -2.8 -2.4 -1.6 -2.1 0.3 1.7 1.8
NIM (Beijing) 0.9 1.1 1.2 1.5 1.6 1.7 1.9 0.3 1.7 1.8
NIMB (Bucharest) 428.4 443.5 450.9 466.9 481.2 498.5 508.3 0.3 7.5 7.6
NIMT (Pathumthani) -22.1 -4.6 -4.7 -7.9 -9.1 -11.8 -19.0 0.7 20.0 20.0
NIS (Cairo) 105.1 97.8 91.4 81.2 68.6 65.0 347.5 0.7 20.0 20.0 (6)
NIST (Boulder) -1.8 -1.4 -0.5 0.6 0.9 0.5 0.0 0.3 2.3 2.3
NMIJ (Tsukuba) 20.4 19.2 16.4 14.4 11.2 8.3 5.8 0.3 3.5 3.5
NMLS (Sepang) -1634.1 -1678.2 -1718.5 -1733.7 -1747.4 -1770.5 -1777.5 1.5 3.4 3.7
NPL (Teddington) -0.6 0.6 1.1 0.4 -0.2 1.4 0.2 0.3 1.6 1.7
NPLI (New-Delhi) -0.5 -0.5 -0.4 0.0 0.3 0.3 0.6 0.3 3.0 3.0
NRC (Ottawa) -0.9 -0.9 -0.8 -0.5 -0.7 -0.8 -0.9 0.3 3.2 3.2
NRL (Washington DC) -0.2 -3.1 -0.5 1.7 1.4 -0.3 0.9 0.3 20.0 20.0
NSAI (Dublin) -287.3 -286.7 -290.5 -301.2 -303.2 -298.4 -293.5 0.5 7.1 7.2
NTSC (Lintong) 0.5 0.5 0.2 0.3 0.3 0.2 0.3 0.3 2.8 2.8
ONBA (Buenos Aires) 1443.6 1462.4 1468.9 1484.4 1504.1 1509.8 1531.9 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -2.0 -1.3 3.1 -5.3 -1.9 -0.3 -2.9 0.3 20.0 20.0
OP (Paris) -0.7 -0.3 -0.4 0.3 0.8 0.7 1.1 0.3 1.4 1.4
ORB (Bruxelles) 1.0 1.5 0.7 0.5 0.6 0.9 0.9 0.3 2.7 2.7
PL (Warszawa) 12.3 11.6 10.7 9.6 6.9 4.0 1.5 0.3 3.3 3.3
PTB (Braunschweig) -0.8 -0.9 -1.3 -1.3 -1.3 -1.1 -1.0 0.1 0.8 0.9
ROA (San Fernando) -0.5 -0.5 -1.7 -2.1 -1.9 -1.4 -1.6 0.3 1.5 1.6
SASO (Riyadh) -2594.1 - - -2634.8 -2653.0 -2665.3 -2677.1 0.7 3.2 3.3
SCL (Hong Kong) 256.9 259.7 260.5 248.9 226.5 187.6 146.5 0.3 3.1 3.1
SG (Singapore) -1.3 2.7 4.1 4.5 8.9 7.4 9.0 0.3 2.9 2.9
SIQ (Ljubljana) 2739.8 2866.8 2969.8 3113.2 3245.8 3373.7 3518.1 0.3 3.7 3.7
SL (Colombo) 24.8 22.3 21.8 20.8 22.1 16.6 14.2 0.3 2.9 2.9
SMD (Bruxelles) 3.2 0.2 3.0 5.4 0.9 4.6 7.0 0.3 3.3 3.3
SMU (Bratislava) - - - - -75.3 -85.5 -101.3 1.5 12.2 12.3
SP (Boras) 0.2 0.3 0.0 0.3 0.1 0.4 0.4 0.3 1.7 1.7
SU (Moskva) -1.4 -1.4 -1.0 -0.4 -0.1 0.0 0.2 0.3 2.1 2.1
TL (Chung-Li) 2.4 2.3 1.7 1.4 0.9 1.0 0.8 0.3 1.8 1.8
TP (Praha) 10.2 11.2 9.1 11.0 13.9 16.8 11.9 0.3 2.6 2.7
UA (Kharkov) -2.6 -3.5 -0.4 -3.5 -10.3 4.0 -8.0 3.0 7.2 7.8
UAE (Abu Dhabi) 11.6 22.5 20.1 22.7 15.4 8.4 15.0 4.0 20.0 20.4
UME (Gebze-Kocaeli) -8.2 -9.0 -9.1 -6.9 -4.1 -3.3 -1.8 0.3 3.5 3.5
USNO (Washington DC) -1.7 -1.3 -1.2 -1.4 -0.5 0.0 0.0 0.2 1.5 1.5
VMI (Ha Noi) -3.3 4.6 -0.2 -5.3 9.6 -0.9 -26.2 0.7 3.4 3.5
VSL (Delft) -0.1 -3.5 -2.2 -6.3 -7.9 -8.5 -6.4 0.3 1.5 1.6
ZA (Pretoria) 5.9 3.4 1.5 4.4 5.6 2.4 2.3 0.3 3.0 3.0
- Notes on section 1:
(1) AGGO : Apparent time step of UTC(AGGO) of about -700 ns on MJD 59499.62.
(2) APL : Apparent time step of UTC(APL) of about -2 ns on MJD 59491.68.
(3) ESA : ESA : European Space Agency, formerly ESTC
(4) ICE : Apparent time step of UTC(ICE) of about -15.5ns between MJD 59484 and 59489 due to calibration.
(5) INCP : Apparent time step of UTC(INCP) of about +530 ns on MJD 59485.71.
(6) NIS : Apparent time step of UTC(NIS) of -280.6ns on MJD 59511.87.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59484 - 59514 6.501x10-13 (2021 SEP 27 - 2021 OCT 27)
New correction 59514 - 59544 6.501x10-13 (2021 OCT 27 - 2021 NOV 26)
New correction foreseen 59544 - 59579 6.501x10-13 (2021 NOV 26 - 2021 DEC 31)

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-CS2 59484 59514 -4.47 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T405 35 Y (1)
METAS-FOC2 59499 59514 -2.15 0.15 1.37 0.16 0.08 0.37 1.44 PFS/NA T371 1.99 85.6 T395 8 Y (2)
IT-CsF2 59484 59514 0.00 0.17 0.31 0.10 0.01 0.20 0.42 PFS/NA T318 0.19 95.9 T405 17 Y (3)
KRISS-Yb1 59429 59454 0.42 0.00 0.04 0.28 0.07 0.23 0.37 0.5 [1] T405 0.03 29.4 T405 9 Y (4)
KRISS-Yb1 59454 59484 0.63 0.00 0.04 0.19 0.07 0.20 0.28 0.5 [1] T405 0.03 45.4 T405 9 Y (4)
NICT-Sr1 59484 59514 -0.06 0.03 0.07 0.22 0.08 0.20 0.31 0.4 [1] T371 0.06 2.1 T405 15 Y (5)
NMIJ-Yb1 59499 59514 -0.05 0.01 0.12 0.08 0.10 0.37 0.41 0.5 [1] T392 0.36 95.3 T405 14 Y (6)
NPL-CsF2 59484 59514 0.11 0.15 0.31 0.14 0.03 0.20 0.42 PFS/NA T284 0.23 91.6 T405 20 Y (7)
NRC-FCs2 59484 59514 0.23 0.12 0.36 0.12 0.00 0.20 0.44 PFS/NA T389 0.23 89.3 T405 23 Y (8)
SYRTE-FO2 59484 59514 0.17 0.30 0.21 0.13 0.00 0.20 0.44 PFS/NA T301 0.23 72.4 T405 35 Y (9)
SYRTE-FOM 59484 59514 -0.13 0.20 0.56 0.05 0.00 0.20 0.63 PFS/NA T372 0.70 96.8 T394 24 Y (9)
SYRTE-FORb 59484 59514 0.47 0.30 0.25 0.13 0.00 0.20 0.46 0.6 [1] T328 0.34 74.5 T404 35 Y (9)
PTB-CSF1 59484 59514 0.53 0.07 0.35 0.01 0.00 0.07 0.36 PFS/NA T371 0.28 96.7 T404 29 Y (10)
PTB-CSF2 59484 59514 0.03 0.11 0.17 0.01 0.00 0.07 0.21 PFS/NA T370 0.17 96.0 T405 40 Y (10)
SU-CsFO2 59484 59514 0.34 0.29 0.22 0.15 0.00 0.20 0.44 PFS/NA T315 0.50 73.1 T405 32 Y (11)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 04 NOV. 2021 by CH
(3) Report 05 NOV. 2021 by INRIM
(4) Report 04 NOV. 2022 by KRISS
(5) Report 04 NOV. 2021 by NICT
(6) Report 03 NOV. 2021 by NMIJ
(7) Report 04 NOV. 2021 by NPL
(8) Report 28 OCT. 2021 by NRC
(9) Report 03 NOV. 2021 by LNE-SYRTE
(10) Report 02 NOV. 2021 by PTB
(11) Report 27 OCT. 2021 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 59124-59514, and corresponding uncertainties.

Period of estimation d u
59484-59514 0.12x10-15 0.12x10-15 (2021 SEP 27 - 2021 OCT 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'= 0.7 ns, σ1'= 6.5 ns

2021 0h UTC MJD C0'/ns N0 C1'/ns N1'
SEP 27 59484 0.5 89 17.5 89
SEP 28 59485 0.2 90 18.3 85
SEP 29 59486 -1.1 89 17.8 87
SEP 30 59487 -0.8 89 19.7 84
OCT 1 59488 -0.5 89 19.4 88
OCT 2 59489 -0.1 90 18.4 85
OCT 3 59490 0.3 89 20.3 85
OCT 4 59491 0.6 89 20.9 89
OCT 5 59492 -1.5 89 19.7 88
OCT 6 59493 -1.7 90 18.2 86
OCT 7 59494 -0.8 89 18.0 85
OCT 8 59495 -0.5 89 18.6 77
OCT 9 59496 -0.1 89 20.5 89
OCT 10 59497 -0.1 90 24.2 90
OCT 11 59498 -0.7 89 24.3 89
OCT 12 59499 -0.3 89 21.9 89
OCT 13 59500 -0.4 89 19.7 89
OCT 14 59501 -0.7 90 16.3 85
OCT 15 59502 0.1 89 14.2 85
OCT 16 59503 0.2 89 15.6 84
OCT 17 59504 -0.9 89 17.5 89
OCT 18 59505 0.6 90 17.7 89
OCT 19 59506 2.5 89 19.2 89
OCT 20 59507 2.0 89 21.1 87
OCT 21 59508 1.0 89 19.5 87
OCT 22 59509 0.6 90 17.8 85
OCT 23 59510 1.2 89 19.6 80
OCT 24 59511 0.5 89 20.7 83
OCT 25 59512 1.2 89 20.4 89
OCT 26 59513 0.5 90 18.7 87
OCT 27 59514 0.6 89 18.4 85

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
AGGO/PTB GPS P3 TC_2 /PT13 NC / 1001-2020 1.0 20.0
AOS /PTB GPSPPP AO_4 /PT13 1014-2018 / 1001-2020 0.3 2.9 1.5
APL /PTB GPSPPP AP04 /PT13 NC / 1001-2020 0.3 20.0
AUS /PTB GPSPPP AU04 /PT13 1002-2010 / 1001-2020 0.3 11.2 10.0
BEV /PTB GPSPPP BE1_ /PT13 1012-2016 / 1001-2020 0.3 3.3 2.2
BFKH/PTB GPS MC MK01 /PT13 NC / 1001-2020 1.5 20.0
BIM /PTB GPSPPP BM51 /PT13 2007-2019 / 1001-2020 0.3 7.1 1.2
BIRM/PTB GPS P3 BI41 /PT13 1016-2018 / 1001-2020 0.7 2.8 1.2
BOM /PTB GPS MC MABM /PT13 NA_Al / 1001-2020 10.0 7.5 2.8 +4.4 2003
BY /PTB GPS MC BY46 /PT13 2001-2008 / 1001-2020 1.5 12.2 10.0
CAO /PTB GPS MC CA__ /PT13 NC / 1001-2020 1.5 20.0
CNES/PTB GPSPPP CS21 /PT13 1012-2021 / 1001-2020 0.3 2.5 0.1
CNM /PTB GPS MC CN00 /PT13 NA_Al / 1001-2020 1.5 3.8 2.0 -27.3 0804
CNMP/PTB GPS P3 MP1_ /PT13 1011-2017 / 1001-2020 0.7 5.1 2.0
DFNT/PTB GPS P3 DN__ /PT13 NC_Al / 1001-2020 0.7 20.0 10.3 1507
DLR /PTB NL
DMDM/PTB GPSPPP ZM68 /PT13 1011-2016 / 1001-2020 0.3 3.3 2.2
DTAG/PTB GPSPPP DT05 /PT13 1012-2019 / 1001-2020 0.3 2.8 1.0
EIM /PTB GPS MC EI__ /PT13 NA / 4.0 11.2 10.0
ESA /PTB GPSPPP ES07 /PT13 1013-2020 / 1001-2020 0.3 2.6 0.5
HKO /PTB GPS P3 HKO1 /PT13 1011-2018 / 1001-2020 0.7 3.0 1.6
ICE /PTB GPS P3 CE__ /PT13 2002-2019 / 1001-2020 0.7 7.1 1.1
IDN /PTB GPSPPP KI01 /PT13 1017-2018 / 1001-2020 0.3 2.8 1.3
IFAG/PTB GPSPPP IF20 /PT13 1014-2020 / 1001-2020 0.3 2.5 0.4
IGNA/PTB GPSPPP IG02 /PT13 NC_Al / 1001-2020 0.3 20.0 -7.0 2106
IMBH/PTB GPS P3 BH02 /PT13 1011-2019 / 1001-2020 0.7 2.8 1.2
INCP/PTB GPS MC CP__ /PT13 NC / 1001-2020 5.0 20.0
INM /PTB GPS MC IC__ /PT13 NC / 1001-2020 1.5 20.0
INPL/PTB GPSPPP IL06 /PT13 2003-2016 / 1001-2020 0.3 7.3 2.1
INTI/PTB GPS MC INTI /PT13 NC / 1001-2020 5.0 20.0
INXE/PTB GPSPPP NXRA /PT13 1012-2020 / 1001-2020 0.3 2.6 0.8
IPQ /PTB GPSPPP IP05 /PT13 NC / 1001-2020 0.3 20.0
JATC/PTB GPSPPP JA01 /PT13 1201-2018 / 1001-2020 0.3 2.9 1.5
JV /PTB GPSPPP JV02 /PT13 1101-2017 / 1001-2020 0.3 4.4 1.7
KRIS/PTB GPSPPP KRG1 /PT13 1017-2017 / 1001-2020 0.3 3.2 2.0
KZ /PTB GPS P3 KZ03 /PT13 NC / 1001-2020 10.0 20.0
LRTE/PTB GPSPPP LRRC /PT13 NC / 1001-2020 0.3 20.0
LT /PTB GPSPPP LT02 /PT13 1014-2018 / 1001-2020 0.3 2.9 1.5
LUX /PTB GPSPPP LU02 /PT13 1012-2021 / 1001-2020 0.3 2.5 0.1
LV /PTB GPS MC LV01 /PT13 2001-2007 / 1001-2020 1.5 12.2 10.0
MASM/PTB GPSPPP MN__ /PT13 1019-2018 / 1001-2020 0.3 2.9 1.4
MBM /PTB GPSPPP ME01 /PT13 NC / 1001-2020 0.3 20.0
MIKE/PTB GPSPPP MI04 /PT13 1016-2019 / 1001-2020 0.3 2.6 0.9
MSL /PTB GPS P3 MS0_ /PT13 NC / 1001-2020 1.5 20.0
NAO /PTB GPS MC NAT2 /PT13 NC / 1001-2020 2.0 20.0
NICT/PTB GPSPPP NC4S /PT13 1001-2020 / 1001-2020 0.3 1.6 0.5
NIM /PTB GPSPPP IM06 /PT13 1001-2020 / 1001-2020 0.3 1.6 0.4
NIMB/PTB GPSPPP MB02 /PT13 NA_Al / 1001-2020 0.3 7.5 2.6 32.2 1611
NIMT/PTB GPS P3 MTTI /PT13 NC / 1001-2020 0.7 20.0
NIS /PTB GPS P3 IS__ /PT13 NC / 1001-2020 0.7 20.0
NMIJ/PTB GPSPPP NM0D /PT13 1001-2014 / 1001-2020 0.3 3.4 2.8
NMLS/PTB GPS MC LSM1 /PT13 1013-2017 / 1001-2020 1.5 3.3 2.0
NPLI/PTB GPSPPP LI2P /PT13 1013-2018 / 1001-2020 0.3 3.0 1.6
NRC /PTB GPSPPP NRC4 /PT13 1019-2017 / 1001-2020 0.3 3.1 1.8
NRL /PTB GPSPPP RL2_ /PT13 NC / 1001-2020 0.3 20.0
NSAI/PTB GPSPPP IE01 /PT13 2022-2019 / 1001-2020 0.5 7.1 1.0
NTSC/PTB GPSPPP NTP3 /PT13 1001-2016 / 1001-2020 0.3 2.8 2.2
ONBA/PTB GPS MC ON__ /PT13 1002-2004 / 1001-2020 2.0 11.2 10.0
ONRJ/PTB GPSPPP RJ03 /PT13 NC_Al / 1001-2020 0.3 20.0 -11.7 1912
ORB /PTB GPSPPP OR5Z /PT13 1011-2020 / 1001-2020 0.3 2.6 0.7
PL /PTB GPSPPP PL_3 /PT13 NA_Al / 1001-2020 0.3 3.3 1.5 32.7 2110
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2020 0.7 3.1 1.7
SCL /PTB GPSPPP SC05 /PT13 1011-2018 / 1001-2020 0.3 3.0 1.6
SG /PTB GPSPPP SG01 /PT13 1019-2018 / 1001-2020 0.3 2.8 1.3
SIQ /PTB GPSPPP SI01 /PT13 1013-2019 / 1001-2020 0.3 3.6 0.8
SL /PTB GPSPPP SL01 /PT13 1017-2018 / 1001-2020 0.3 2.8 1.2
SMD /PTB GPSPPP SD01 /PT13 1014-2017 / 1001-2020 0.3 3.2 2.0
SMU /PTB GPS MC SM00 /PT13 NA_Al / 1001-2020 1.5 12.2 10.0 57.8 0908
SU /PTB GPSPPP SU31 /PT13 1001-2018 / 1001-2020 0.3 2.2 1.6
TL /PTB GPSPPP TLT1 /PT13 1001-2020 / 1001-2020 0.3 1.6 0.4
TP /PTB GPSPPP TP02 /PT13 1013-2021 / 1001-2020 0.3 2.5 0.1
UA /PTB GPS MC UA05 /PT13 2003-2018 / 1001-2020 3.0 7.2 1.5
UAE /PTB GPS MC AE__ /PT13 NC / 1001-2020 4.0 20.0
UME /PTB GPSPPP UM01 /PT13 1011-2016 / 1001-2020 0.3 3.4 2.3
VMI /PTB GPS P3 VM12 /PT13 NA_Al / 1001-2020 0.7 3.3 2.0 -21.0 2110
ZA /PTB GPSPPP ZA02 /PT13 1018-2018 / 1001-2020 0.3 2.9 1.4
Link Type Equipment Cal_ID uStb/ns uCal/ns uAg/ns Al/ns YYMM
CH /PTB TWGPPP CH01 /PTB05 0523-2021 0.3 1.3 0.5
IT /PTB TWGPPP IT02 /PTB05 0502-2019 0.3 1.6 0.7
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 2.2 1.7
NPL /PTB TWGPPP NPL02 /PTB05 0525-2021 0.3 1.4 0.5
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.2 0.6
ROA /PTB TWGPPP ROA01 /PTB05 0504-2019 0.3 1.3 0.6
SP /PTB TWGPPP SP01 /PTB05 0496-2019 0.3 1.6 0.7
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.9 1.3
VSL /PTB TWGPPP VSL01 /PTB05 0527-2021 0.3 1.3 0.5