CIRCULAR T 405 ISSN 1143-1393
2021 OCTOBER 11, 14h 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 AUG 28 SEP 2 SEP 7 SEP 12 SEP 17 SEP 22 SEP 27 Uncertainty/ns Notes
MJD 59454 59459 59464 59469 59474 59479 59484 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AGGO (La Plata) -566.6 -565.9 -564.7 -539.9 -549.5 -537.5 -535.3 1.0 20.0 20.0
AOS (Borowiec) 1.3 2.5 3.6 5.4 5.6 5.6 5.9 0.3 3.0 3.0
APL (Laurel) -1.2 -1.5 -1.9 -2.6 -3.4 -1.1 -1.0 0.3 19.5 19.5
AUS (Sydney) -508.3 -515.7 -514.6 -502.3 -520.6 -536.1 -553.1 0.3 11.2 11.2
BEV (Wien) 25.1 23.9 19.2 14.6 8.6 -0.4 -7.2 0.3 3.4 3.4
BFKH (Budapest) 3240.9 3273.0 3301.4 3334.7 3362.4 3389.3 3417.5 1.5 20.0 20.1
BIM (Sofiya) 14990.9 15015.6 15033.6 15082.4 15095.4 15127.4 15159.4 0.3 7.1 7.2
BIRM (Beijing) -9.0 -6.6 -2.6 -0.1 -1.0 1.3 4.6 0.7 2.9 3.0
BOM (Skopje) -44.9 -45.1 -31.7 -128.8 -247.9 -248.5 -432.2 10.0 7.5 12.5
BY (Minsk) 1.0 0.8 -1.5 -2.1 -2.8 -1.9 -3.8 1.5 12.0 12.1 (1)
CAO (Cagliari) -29906.1 -30019.6 -30131.7 -30242.1 -30353.5 -30466.6 -30580.1 1.5 20.0 20.1
CH (Bern-Wabern) 0.2 0.9 -0.3 -0.7 -0.4 0.7 2.3 0.3 1.5 1.5
CNES (Toulouse) -12.3 -13.7 -13.3 -12.1 -9.9 -7.8 -5.2 0.3 2.6 2.6
CNM (Queretaro) 5.3 3.6 8.8 1.8 1.0 6.7 -12.0 1.5 3.9 4.2
CNMP (Panama) 18.6 17.2 10.9 6.4 8.8 11.5 23.1 0.7 5.2 5.2
DFNT (Tunis) 575.8 653.8 746.9 839.9 924.5 1010.1 1104.2 0.7 20.0 20.0
DLR (Oberpfaffenhofen) -15.5 -23.2 -24.8 -24.0 - - - 0.7 2.9 3.0
DMDM (Belgrade) -19.9 -18.8 -12.0 -12.4 -7.3 -9.1 -6.1 0.3 3.4 3.4
DTAG (Frankfurt/M) 33.2 27.5 25.7 20.1 17.6 11.8 16.4 0.3 2.9 2.9
EIM (Thessaloniki) -2.9 -0.3 9.9 4.1 3.1 5.4 2.3 4.0 11.2 11.9
ESTC (Noordwijk) 0.2 -0.3 -1.5 -1.7 -1.4 -1.4 -1.2 0.3 2.6 2.6
HKO (Hong Kong) -6.7 -13.0 -13.1 -20.0 -14.8 -10.0 -15.6 0.7 3.1 3.2
ICE (San Jose) 14.2 24.8 27.0 21.2 16.7 10.3 11.6 2.5 20.0 20.2
IDN (Serpong-Tangerang) 870.4 879.6 882.2 903.4 930.5 947.2 982.8 0.3 2.9 2.9
IFAG (Wettzell) -803.2 -804.4 -810.5 -810.9 -807.9 -808.5 -816.4 0.3 2.6 2.6
IGNA (Buenos Aires) 7730.9 - - 7894.8 7958.7 8020.6 8078.1 0.3 20.0 20.0
IMBH (Sarajevo) -2.5 -4.4 1.3 0.1 -1.5 -1.5 -1.8 0.7 2.9 3.0
INCP (Lima) - -57.4 48.8 158.2 261.5 359.2 466.5 5.0 20.0 20.6
INM (Bogota D.C.) 139.4 136.6 145.3 140.5 133.8 117.8 95.4 1.5 20.0 20.1
INPL (Jerusalem) -85.0 -87.3 -88.2 -91.2 -87.8 -87.3 -78.7 0.3 7.3 7.3
INTI (Buenos Aires) 127.3 22.8 17.6 19.5 71.5 52.0 4.2 5.0 20.0 20.6
INXE (Rio de Janeiro) -31.4 -11.6 -3.1 -4.3 10.6 18.0 15.3 0.3 2.7 2.7
IPQ (Caparica) 437.5 428.0 440.7 446.8 438.8 430.4 433.0 0.3 20.0 20.0
IT (Torino) -0.8 0.1 0.4 0.5 0.6 0.8 1.1 0.3 1.7 1.7
JATC (Lintong) -1.2 -1.5 -1.4 -0.7 -0.1 0.4 1.4 0.3 3.0 3.0
JV (Kjeller) -50.6 -47.7 -38.6 -30.2 -30.9 -39.5 -40.4 0.3 4.3 4.3
KRIS (Daejeon) 14.0 13.5 12.3 10.8 9.2 8.4 8.5 0.3 3.3 3.3
KZ (Astana) -29.5 -22.0 11.4 4.6 22.4 25.1 37.8 10.0 20.0 22.4
LRTE (Sao Carlos) 4.8 1.6 -1.1 -47.6 -47.3 -48.1 -5.3 0.3 20.0 20.0 (2)
LT (Vilnius) 688.6 689.2 673.6 656.7 626.7 632.9 636.1 0.3 3.0 3.0
LUX (Belvaux) 9.3 4.7 1.1 -6.0 -8.6 -7.9 -1.9 0.3 2.6 2.6
LV (Riga) -483.8 -494.2 -510.4 -518.4 -519.7 -518.8 -515.0 1.5 12.2 12.3
MASM (Bayanzurkh) -307.7 -311.4 -305.5 -299.5 -297.9 -301.7 -309.2 0.3 3.0 3.0
MBM (Podgorica) 333.4 336.3 338.3 341.2 352.7 367.8 366.0 1.5 20.0 20.1
MIKE (Espoo) 0.9 1.0 0.9 0.9 0.9 0.9 0.9 0.3 2.7 2.7
MSL (Lower Hutt) -13.7 -28.7 -17.7 -12.0 -3.1 -1.4 18.4 1.5 20.0 20.1
NAO (Mizusawa) 346.3 345.7 341.8 336.9 337.0 341.5 338.8 2.0 20.0 20.1
NICT (Tokyo) 1.5 1.2 2.2 0.9 -2.9 -4.0 -3.0 0.3 1.7 1.8
NIM (Beijing) -0.2 0.2 0.6 0.6 0.6 0.4 0.9 0.3 1.6 1.7
NIMB (Bucharest) 351.3 362.6 372.2 384.8 403.7 417.8 428.4 0.3 7.4 7.5
NIMT (Pathumthani) -53.9 -28.8 -5.6 -30.8 -38.1 -38.7 -22.1 0.7 20.0 20.0
NIS (Cairo) 100.4 109.5 109.1 108.5 - 104.9 105.1 0.7 20.0 20.0
NIST (Boulder) 0.7 -0.1 -0.6 -1.2 -1.9 -2.1 -1.8 0.3 2.3 2.3
NMIJ (Tsukuba) 5.4 9.8 13.4 16.3 18.6 19.0 20.4 0.3 3.4 3.4
NMLS (Sepang) -1355.6 -1394.5 -1454.1 -1500.4 -1552.0 -1591.1 -1634.1 1.5 3.4 3.7
NPL (Teddington) 0.3 -0.4 0.9 0.6 -0.6 0.7 -0.6 0.3 1.6 1.7
NPLI (New-Delhi) 0.4 0.4 0.4 0.1 -0.3 -0.5 -0.5 0.3 3.0 3.0
NRC (Ottawa) 0.2 -0.3 -0.4 -0.6 -0.6 -0.8 -0.9 0.3 3.2 3.2
NRL (Washington DC) 2.2 -4.8 -5.4 2.3 0.4 -0.1 -0.2 0.3 20.0 20.0
NSAI (Dublin) -279.7 -277.0 -277.7 -286.3 -291.5 -282.1 -287.3 0.7 7.1 7.2
NTSC (Lintong) -2.3 -1.4 -0.9 -0.6 -0.3 -0.1 0.5 0.3 2.7 2.7
ONBA (Buenos Aires) 1366.6 1383.0 1392.8 1404.7 1406.5 1430.0 1443.6 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -5.5 -3.7 -3.5 -3.4 -4.0 2.3 -2.0 0.3 20.0 20.0
OP (Paris) -1.4 -1.3 -1.4 -1.5 -1.2 -0.9 -0.7 0.3 1.4 1.4
ORB (Bruxelles) 1.4 0.7 0.7 0.5 0.4 0.0 1.0 0.3 2.7 2.7
PL (Warszawa) 12.6 13.1 13.9 14.0 14.1 12.9 12.3 0.3 3.3 3.3
PTB (Braunschweig) 0.5 0.3 0.1 -0.2 -0.5 -0.7 -0.8 0.1 0.8 0.8
ROA (San Fernando) -1.3 -0.5 0.2 0.7 1.2 -0.5 -0.5 0.3 1.5 1.6 (3)
SASO (Riyadh) -2523.1 -2532.4 -2540.2 -2555.7 -2558.2 -2576.7 -2594.1 0.7 3.1 3.2
SCL (Hong Kong) 95.2 124.7 157.0 209.9 234.2 247.9 256.9 0.3 3.1 3.1
SG (Singapore) -4.1 -10.5 -8.6 0.2 -0.3 -2.3 -1.3 0.3 2.9 2.9
SIQ (Ljubljana) 2038.9 2163.6 2256.8 2348.9 2466.8 2597.8 2739.8 0.3 3.7 3.7
SL (Colombo) 43.6 33.9 37.1 38.8 33.7 30.3 24.8 0.3 2.9 2.9
SMD (Bruxelles) -6.5 -1.2 0.9 3.0 3.7 4.1 3.2 0.3 3.3 3.3
SMU (Bratislava) - - - - - - -
SP (Boras) 0.2 0.0 0.2 0.3 0.1 0.2 0.2 0.3 1.7 1.7
SU (Moskva) -1.4 -1.6 -1.8 -1.9 -1.8 -1.7 -1.4 0.3 2.0 2.0
TL (Chung-Li) 2.7 3.1 2.7 3.2 2.5 2.1 2.4 0.3 1.7 1.7
TP (Praha) 7.0 10.3 14.7 8.8 7.9 5.0 10.2 0.3 2.9 2.9
UA (Kharkov) -11.8 -7.9 4.1 3.0 -3.3 -3.7 -2.6 3.0 7.2 7.8
UAE (Abu Dhabi) - 295.5 217.0 3.7 12.3 15.6 11.6 4.0 20.0 20.4
UME (Gebze-Kocaeli) -12.3 -10.6 -11.2 -11.5 -9.8 -8.3 -8.2 0.3 3.5 3.5
USNO (Washington DC) -1.9 -2.3 -2.1 -2.4 -2.0 -1.4 -1.7 0.2 1.5 1.5
VMI (Ha Noi) 10.2 -3.7 -7.7 -7.3 -14.1 -9.7 -3.3 0.3 7.1 7.2
VSL (Delft) -2.3 4.7 -4.2 -6.2 2.4 4.2 -0.1 0.3 1.5 1.6
ZA (Pretoria) -1.2 -5.9 -5.1 3.8 7.5 8.6 5.9 0.3 3.0 3.0
- Notes on section 1:
(1) BY : Apparent time step of UTC(BY) of about +10.4 ns on MJD 59480.36.
(2) LRTE : Time step of UTC(LRTE) of about -42.9 ns on MJD 59466 due to set up change.
(3) ROA : Time step of UTC(ROA) of about -1.6 ns on MJD 59471.09.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59454 - 59484 6.501x10-13 (2021 AUG 28 - 2021 SEP 27)
New correction 59484 - 59514 6.501x10-13 (2021 SEP 27 - 2021 OCT 27)
New correction foreseen 59514 - 59544 6.501x10-13 (2021 OCT 27 - 2021 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-CS2 59454 59484 -8.94 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T404 35 Y (1)
IT-CsF2 59459 59484 -0.61 0.24 0.30 0.11 0.01 0.23 0.46 PFS/NA T318 0.19 76.9 T404 16 Y (2)
KRISS-Yb1 58864 58874 -0.41 0.01 0.04 0.81 0.07 0.53 0.97 0.5 [1] [2] 0.03 6.0 N/A 0 Y (3)
KRISS-Yb1 58919 58934 -0.43 0.00 0.04 0.32 0.07 0.37 0.49 0.5 [1] [2] 0.03 35.0 N/A 0 Y (3)
KRISS-Yb1 58994 59029 -0.11 0.01 0.04 0.49 0.07 0.17 0.53 0.5 [1] [2] 0.03 6.5 N/A 0 Y (3)
KRISS-Yb1 59029 59049 -0.65 0.01 0.04 0.47 0.07 0.28 0.55 0.5 [1] [2] 0.03 11.9 N/A 0 Y (3)
KRISS-Yb1 59059 59089 -0.63 0.01 0.04 0.73 0.07 0.20 0.76 0.5 [1] [2] 0.03 5.4 N/A 0 Y (3)
KRISS-Yb1 59089 59119 -0.39 0.01 0.04 0.82 0.07 0.20 0.85 0.5 [1] [2] 0.03 2.9 N/A 0 Y (3)
KRISS-Yb1 59124 59174 -0.39 0.01 0.04 0.44 0.07 0.12 0.46 0.5 [1] [2] 0.03 6.5 N/A 0 Y (3)
KRISS-Yb1 59224 59264 0.87 0.01 0.04 0.42 0.07 0.15 0.45 0.5 [1] [2] 0.03 7.1 N/A 0 Y (3)
KRISS-Yb1 59284 59299 0.73 0.01 0.04 0.65 0.07 0.37 0.75 0.5 [1] [2] 0.03 7.2 N/A 0 Y (3)
NICT-Sr1 59454 59484 0.28 0.04 0.07 0.25 0.08 0.20 0.34 0.4 [1] T371 0.06 1.4 T404 14 Y (4)
NMIJ-Yb1 59454 59464 0.13 0.01 0.12 0.15 0.10 0.53 0.57 0.5 [1] T392 0.36 94.3 T404 13 Y (5)
NPL-CsF2 59454 59484 0.68 0.15 0.20 0.09 0.03 0.20 0.33 PFS/NA T284 0.23 93.2 T404 19 Y (6)
NRC-FCs2 59454 59484 0.46 0.11 0.28 0.11 0.00 0.20 0.38 PFS/NA T389 0.23 94.1 T404 22 Y (7)
SYRTE-FO2 59454 59484 0.36 0.20 0.22 0.09 0.00 0.20 0.37 PFS/NA T301 0.23 80.5 T403 35 Y (8)
PTB-CSF2 59454 59484 -0.07 0.10 0.17 0.01 0.00 0.07 0.21 PFS/NA T370 0.17 98.5 T404 40 Y (9)
SU-CsFO2 59454 59484 0.29 0.24 0.22 0.14 0.00 0.20 0.40 PFS/NA T315 0.50 70.8 T404 31 Y ( 10)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 06 OCT. 2021 by INRIM
(3) Report 12 AUG. 2021 by KRIS
(4) Report 05 OCT. 2021 by NICT
(5) Report 03 OCT. 2021 by NMIJ
(6) Report 04 OCT. 2021 by NPL
(7) Report 29 SEP. 2021 by NRC
(8) Report 01 OCT. 2021 by LNE-SYRTE
(9) Report 28 SEP. 2021 by PTB
(10) Report 04 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.
[2] H. Kim, M-S. Heo, C.Y. Park, D-H. Yu, W-K. Lee, 'Absolute frequency measurement of the 171Yb
optical lattice clock at KRISS using TAI for over a year', Metrologia, 58 5, 055007 (2021).

Table 2: Estimate of d by the BIPM based on all PSFS measurements identified to be used for TAI steering
over the period MJD 59094-59484, and corresponding uncertainties.

Period of estimation d u
59454-59484 0.17x10-15 0.12x10-15 (2021 AUG 28 - 2021 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'= 6.5 ns

2021 0h UTC MJD C0'/ns N0 C1'/ns N1'
AUG 28 59454 -3.6 89 14.8 88
AUG 29 59455 -2.4 89 12.9 89
AUG 30 59456 -1.7 89 13.7 88
AUG 31 59457 -2.7 90 13.9 89
SEP 1 59458 -3.1 89 14.7 86
SEP 2 59459 -2.3 89 16.3 89
SEP 3 59460 -2.2 89 17.6 81
SEP 4 59461 0.5 90 17.3 86
SEP 5 59462 1.4 89 18.8 87
SEP 6 59463 -1.8 89 18.4 89
SEP 7 59464 -2.7 89 15.3 89
SEP 8 59465 -1.4 89 13.8 82
SEP 9 59466 -0.9 89 14.4 76
SEP 10 59467 -2.3 89 15.3 89
SEP 11 59468 -1.7 89 14.9 89
SEP 12 59469 -1.4 90 15.5 90
SEP 13 59470 0.0 89 16.6 88
SEP 14 59471 1.1 89 17.0 79
SEP 15 59472 0.1 89 16.6 84
SEP 16 59473 0.1 90 15.5 88
SEP 17 59474 -0.1 89 15.8 85
SEP 18 59475 -1.6 89 15.2 89
SEP 19 59476 -3.7 89 14.9 87
SEP 20 59477 -1.2 90 17.0 88
SEP 21 59478 0.9 89 18.7 86
SEP 22 59479 -0.5 89 17.9 85
SEP 23 59480 -1.0 89 15.5 89
SEP 24 59481 -2.7 90 14.3 84
SEP 25 59482 -0.3 89 13.5 83
SEP 26 59483 1.9 89 14.3 89
SEP 27 59484 0.5 89 17.6 89

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 1.4
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 0.0
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 1.9
DFNT/PTB GPS P3 DN__ /PT13 NC_Al / 1001-2020 0.7 20.0 10.3 1507
DLR /PTB GPS P3 DL05 /PT13 1014-2019 / 1001-2020 0.7 2.8 1.2
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
ESTC/PTB GPSPPP ES07 /PT13 1013-2020 / 1001-2020 0.3 2.5 0.5
HKO /PTB GPS P3 HKO1 /PT13 1011-2018 / 1001-2020 0.7 3.0 1.6
ICE /PTB GPS MC CE1_ /PT13 NC / 1001-2020 2.5 20.0
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 0.7
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 4.3 1.7
KRIS/PTB GPSPPP KRG1 /PT13 1017-2017 / 1001-2020 0.3 3.2 1.9
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 0.0
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 GPS MC ME01 /PT13 NC_Al / 1001-2020 1.5 20.0 10.0 2104
MIKE/PTB GPSPPP MI04 /PT13 1016-2019 / 1001-2020 0.3 2.6 0.8
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 0.4
NIM /PTB GPSPPP IM06 /PT13 1001-2020 / 1001-2020 0.3 1.5 0.4
NIMB/PTB GPSPPP MB02 /PT13 NA_Al / 1001-2020 0.3 7.4 2.5 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 3.3 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 0.7 7.1 0.9
NTSC/PTB GPSPPP NTP3 /PT13 1001-2016 / 1001-2020 0.3 2.7 2.1
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 1014-2018 / 1001-2020 0.3 3.3 1.5
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2020 0.7 3.0 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 1.9
SMU /PTB NL
SU /PTB GPSPPP SU31 /PT13 1001-2018 / 1001-2020 0.3 2.1 1.5
TL /PTB GPSPPP TLT1 /PT13 1001-2020 / 1001-2020 0.3 1.5 0.4
TP /PTB GPSPPP TP02 /PT13 1015-2019 / 1001-2020 0.3 2.8 1.2
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 2.2
VMI /PTB GPSPPP VM02 /PT13 2001-2019 / 1001-2020 0.3 7.1 1.2
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 1.5 0.6
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 0.6
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.8 1.3
VSL /PTB TWGPPP VSL01 /PTB05 0527-2021 0.3 1.3 0.5