CIRCULAR T 409 ISSN 1143-1393
2022 FEBRUARY 10, 15h 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 2021/22 0h UTC DEC 31 JAN 5 JAN 10 JAN 15 JAN 20 JAN 25 JAN 30 Uncertainty/ns Notes
MJD 59579 59584 59589 59594 59599 59604 59609 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AGGO (La Plata) 370.8 370.5 378.0 390.6 402.5 412.8 423.9 1.0 20.0 20.0
AOS (Borowiec) -0.9 -1.3 -2.3 -3.2 -4.2 -5.2 -6.4 0.3 3.0 3.0
APL (Laurel) 3.6 5.0 3.8 2.2 2.6 2.9 3.3 0.3 19.7 19.7
AUS (Sydney) -560.0 -560.5 -562.0 -550.4 -557.0 -557.9 -543.2 0.3 11.2 11.2
BEV (Wien) -29.6 -15.3 5.1 14.4 40.1 61.3 67.5 0.3 3.5 3.5
BFKH (Budapest) 3994.6 4017.2 4051.1 - 4113.4 4149.4 4181.1 1.5 20.0 20.1
BIM (Sofiya) 15646.8 15687.2 15704.7 15719.0 15725.7 15754.4 15770.4 0.3 7.1 7.1
BIRM (Beijing) 4.8 13.7 16.2 16.9 15.4 13.9 11.3 0.3 2.9 2.9 (1)
BOM (Skopje) - -28.9 -194.9 -340.3 -501.1 -657.6 -813.2 0.3 3.5 3.5
BY (Minsk) -1.2 0.5 3.7 3.9 2.2 0.7 0.6 1.5 2.8 3.2
CAO (Cagliari) -32783.9 -32897.1 -33014.0 -33126.3 -33244.8 -33350.7 -33466.1 1.5 20.0 20.1
CH (Bern-Wabern) 0.1 0.2 0.0 -0.3 -0.7 -0.7 -0.7 0.3 1.5 1.5
CNES (Toulouse) 6.6 1.5 -2.4 -6.3 -8.8 -9.3 -7.1 0.3 2.6 2.6
CNM (Queretaro) 0.5 2.6 2.9 -2.1 8.0 -0.7 11.0 1.5 4.0 4.2
CNMP (Panama) -2.6 0.8 8.9 20.8 -5.4 26.6 18.3 0.7 5.2 5.2
DFNT (Tunis) 2883.5 2972.1 3078.9 287.3 401.4 501.4 599.2 0.7 20.0 20.0 (2)
DLR (Oberpfaffenhofen) -28.5 -34.0 -39.2 -35.6 - 53.1 61.3 0.7 2.9 3.0
DMDM (Belgrade) -20.5 -17.4 -17.7 -19.0 -15.4 -21.6 -18.0 0.3 3.5 3.5
DTAG (Frankfurt/M) -10.6 -14.6 -21.9 -29.4 -39.2 -35.7 -39.2 0.3 2.9 2.9
EIM (Thessaloniki) 4.0 3.7 4.9 3.2 5.0 6.1 -2.6 4.0 11.2 11.9
ESA (Noordwijk) 2.3 2.5 2.3 1.7 0.8 0.4 -0.7 0.3 2.7 2.7
HKO (Hong Kong) 27.8 30.0 38.8 44.9 52.3 57.0 56.3 0.7 3.1 3.2
ICE (San Jose) 45.5 41.4 66.1 62.8 82.1 80.7 92.4 2.5 7.2 7.7
IDN (Serpong-Tangerang) 1282.7 1288.3 1319.9 1333.9 1355.6 1386.5 1408.5 0.3 3.0 3.0
IFAG (Wettzell) -805.7 -806.5 -812.1 -815.7 -816.8 -814.4 - 0.3 2.7 2.7
IGNA (Buenos Aires) - - - - - - -265.7 0.4 20.0 20.0
IMBH (Sarajevo) 1.7 0.3 1.9 -0.2 1.3 2.2 2.0 0.7 2.9 3.0
INCP (Lima) 1093.8 1196.0 1302.5 1421.4 -27.2 101.6 81.8 5.0 20.0 20.6 (3)
INM (Bogota D.C.) 325.8 341.1 353.4 361.6 374.4 394.3 412.1 1.5 20.0 20.1
INPL (Jerusalem) -90.4 -85.2 -74.6 -78.8 -77.7 -79.7 -91.6 0.3 7.3 7.3
INTI (Buenos Aires) 175.7 178.9 183.1 182.0 200.9 207.1 202.5 0.3 20.0 20.0
INXE (Rio de Janeiro) 14.6 40.8 69.2 67.5 62.5 56.8 47.0 0.3 2.8 2.8
IPQ (Caparica) -42.1 -188.6 -344.9 -493.7 -466.9 -439.0 -330.0 0.3 2.6 2.6
IT (Torino) 1.0 -0.4 -1.0 -2.1 -3.6 -2.6 -1.8 0.3 1.7 1.8
JATC (Lintong) -0.4 -0.3 -0.4 -0.2 0.4 0.4 0.3 0.3 3.1 3.1
JV (Kjeller) -101.9 -107.5 -107.4 -95.9 -93.2 -84.3 -87.5 0.3 4.4 4.4
KRIS (Daejeon) 7.4 6.6 6.0 4.7 3.4 2.7 2.5 0.3 3.2 3.2
KZ (Astana) 30.9 1.8 1.1 1.6 2.1 0.6 0.3 0.7 4.1 4.1 (4)
LRTE (Sao Carlos) 2.9 3.3 6.3 3.0 -2.6 3.4 2.2 0.3 20.0 20.0
LT (Vilnius) 637.7 634.3 610.3 608.3 604.4 604.2 610.7 0.3 3.1 3.1
LUX (Belvaux) -34.9 -40.9 -40.2 -37.5 -29.8 -17.4 -16.9 0.3 2.6 2.6
MASM (Bayanzurkh) -311.5 -314.3 -302.6 -302.0 -311.0 -317.6 -318.8 0.3 3.0 3.0
MBM (Podgorica) 372.3 374.6 377.9 385.5 372.0 376.5 388.3 0.3 20.0 20.0
MIKE (Espoo) 1.2 1.5 1.3 1.1 1.3 4.9 15.3 0.3 2.8 2.8 (5)
MSL (Lower Hutt) -2.8 -6.5 -11.1 -11.4 -14.7 -27.8 -31.8 1.5 20.0 20.1
NAO (Mizusawa) 326.1 328.0 320.8 323.4 321.2 317.0 311.1 2.0 20.0 20.1
NICT (Tokyo) -2.6 -1.5 -0.8 -1.0 -0.4 -0.7 -0.8 0.3 1.7 1.7
NIM (Beijing) 1.6 0.4 0.1 -0.5 -1.0 -1.6 -2.1 0.3 1.7 1.7
NIMB (Bucharest) 700.1 713.1 727.2 747.2 752.5 762.9 771.0 0.3 7.5 7.5
NIMT (Pathumthani) -2.8 -9.9 -14.1 -17.8 -8.3 -3.1 1.9 0.7 20.0 20.0
NIS (Cairo) 18.8 16.9 10.5 2.6 -4.4 -10.2 -19.4 0.7 20.0 20.0
NIST (Boulder) 0.7 0.9 1.1 1.1 0.5 0.1 -0.6 0.3 2.3 2.3
NMIJ (Tsukuba) -4.3 -4.5 -3.9 -2.0 2.2 3.1 2.7 0.3 3.4 3.4
NMLS (Sepang) -601.2 -458.1 -304.6 -221.0 -145.9 -82.9 -105.5 1.5 3.5 3.8
NPL (Teddington) 2.2 1.5 2.3 1.9 -0.6 -1.1 -1.3 0.3 1.6 1.6
NPLI (New-Delhi) 3.2 2.9 2.5 2.2 1.9 1.1 0.5 0.3 3.0 3.0
NRC (Ottawa) -0.3 -0.3 -0.2 -0.6 -0.9 -1.5 -2.0 0.3 3.2 3.2
NRL (Washington DC) 5.9 2.0 1.1 0.6 0.5 2.2 3.1 0.3 20.0 20.0
NSAI (Dublin) -251.6 -257.3 -254.1 -255.7 -251.1 -245.1 -251.0 0.3 7.1 7.1
NTSC (Lintong) -0.1 -0.3 -0.2 -0.5 -0.3 -0.7 -0.7 0.3 2.8 2.8
ONBA (Buenos Aires) 1592.9 1594.8 1610.5 1610.0 1600.3 1623.8 1650.3 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -0.2 -0.6 1.3 0.5 -0.8 0.6 5.5 0.3 20.0 20.0
OP (Paris) 1.0 1.2 1.6 1.3 1.1 0.8 0.6 0.3 1.4 1.4
ORB (Bruxelles) 1.8 0.8 -0.1 -0.6 -1.8 -2.4 -2.7 0.3 2.6 2.7
PL (Warszawa) 2.7 3.0 2.7 3.0 3.3 3.8 4.7 0.3 2.9 2.9
PTB (Braunschweig) -0.6 -0.2 0.2 0.4 0.5 0.3 0.4 0.1 0.7 0.7
ROA (San Fernando) -1.5 -1.5 -1.3 -1.0 -1.0 -0.5 0.4 0.3 1.6 1.6
SASO (Riyadh) -2822.1 -2834.5 -2843.4 -2851.2 -2856.8 -2868.4 -2885.7 0.7 3.2 3.3
SCL (Hong Kong) -40.8 -40.9 -35.4 -44.2 -53.1 -61.9 -57.8 0.3 3.1 3.1
SG (Singapore) 6.3 9.7 5.5 5.2 5.9 4.9 10.1 0.3 3.0 3.0
SIQ (Ljubljana) 5163.4 5325.3 5434.9 5536.6 5681.2 5800.1 5949.5 0.3 3.7 3.7
SL (Colombo) - - 76.5 76.2 84.5 86.0 87.9 0.3 2.9 2.9
SMD (Bruxelles) 4.8 9.9 12.9 13.5 13.2 12.0 7.6 0.3 3.3 3.3
SMU (Bratislava) - -120.2 -113.8 -108.7 -119.1 -119.9 -109.5 1.5 12.2 12.3
SP (Boras) -0.3 -0.1 0.2 0.3 0.3 0.1 0.2 0.3 1.7 1.8
SU (Moskva) 0.8 0.7 0.5 0.4 0.0 -0.2 -0.4 0.3 2.0 2.0
TL (Chung-Li) -4.3 -4.4 -4.9 -4.8 -5.3 -5.2 -4.5 0.3 1.7 1.8 (6)
TP (Praha) 43.7 41.0 32.4 20.9 19.9 7.6 3.9 0.3 2.6 2.6
UA (Kharkov) -10.8 -4.5 -6.7 -4.0 -2.0 6.8 6.5 3.0 7.2 7.8
UAE (Abu Dhabi) 10.1 1.1 7.7 19.9 21.2 19.1 23.0 4.0 20.0 20.4
UME (Gebze-Kocaeli) 1.0 -0.1 1.8 -0.7 -4.0 -2.6 -2.8 0.3 3.5 3.5
USNO (Washington DC) 0.6 0.9 -0.1 -0.2 -0.4 -0.2 -0.5 0.2 1.5 1.5
VMI (Ha Noi) -0.3 -5.8 2.0 10.3 21.4 17.2 5.9 0.3 7.1 7.1
VSL (Delft) -6.2 -5.4 2.9 3.9 -1.4 -1.4 -6.9 0.3 1.5 1.5
ZA (Pretoria) -0.8 -1.9 -3.7 -4.8 -2.8 -2.2 -0.2 0.3 3.0 3.0
- Notes on section 1:
(1) BIRM : Time step of UTC(BIRM) of about -8 ns on MJD 59579.37.
(2) DFNT : Time step of UTC(DFNT) of about 2870 ns on MJD 59592.46.
(3) INCP : Apparent Time step of UTC(INCP) of about 1489 ns on MJD 59596.57 and about 6 ns on MJD 59604.3.
(4) KZ : Time step of UTC(KZ) between MJD 59579 and 59584 of about 29 ns due to change to a calibrated receiver.
(5) MIKE : Time step of UTC(MIKE) of about 5.8 ns due to change of master clock on MJD 59607.
(6) TL : Time step of UTC(TL) of about -1.5 ns on MJD 59582.09.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59579 - 59609 6.501x10-13 (2021 DEC 31 - 2022 JAN 30)
New correction 59609 - 59634 6.501x10-13 (2022 JAN 30 - 2022 FEB 24)
New correction foreseen 59634 - 59669 6.501x10-13 (2022 FEB 24 - 2022 MAR 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-CS1 59579 59609 -14.77 8.00 8.00 0.00 0.00 0.07 11.31 PFS/NA T148 8.00 100.0 T408 34 Y (1)
PTB-CS2 59579 59609 -5.74 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T408 35 Y (1)
METAS-FOC2 59584 59609 -0.99 0.07 1.49 0.12 0.05 0.23 1.51 PFS/NA T371 1.99 92.4 T408 8 Y (2)
IT-CsF2 59574 59609 0.75 0.15 0.23 0.10 0.01 0.17 0.34 PFS/NA T318 0.19 93.3 T408 20 Y (3)
KRISS-Yb1 59579 59609 0.24 0.01 0.04 0.19 0.07 0.20 0.28 0.5 [1] T405 0.03 12.9 T408 14 Y (4)
NICT-Sr1 59589 59609 0.60 0.03 0.07 0.20 0.02 0.28 0.35 0.4 [1] T371 0.06 2.7 T408 10 Y (5)
NIM5 59579 59609 0.97 0.43 0.90 0.10 0.01 0.35 1.06 PFS/NA T340 1.40 96.7 T408 16 Y (6)
NPL-CsF2 59579 59609 -0.01 0.17 0.20 0.19 0.05 0.20 0.38 PFS/NA T284 0.23 88.5 T408 23 Y (7)
NRC-FCs2 59544 59579 0.48 0.11 0.37 0.15 0.00 0.17 0.45 PFS/NA T389 0.23 66.3 T407 25 Y (8)
NRC-FCs2 59579 59609 0.58 0.11 0.24 0.11 0.00 0.20 0.35 PFS/NA T389 0.23 89.2 T407 25 Y (8)
SYRTE-FO2 59579 59609 0.10 0.20 0.21 0.05 0.00 0.20 0.35 PFS/NA T301 0.23 90.5 T408 35 Y (9)
SYRTE-FOM 59579 59609 0.12 0.20 0.56 0.05 0.00 0.20 0.63 PFS/NA T372 0.70 88.6 T408 23 Y (9)
SYRTE-FORb 59579 59609 0.39 0.20 0.25 0.06 0.00 0.20 0.38 0.6 [1] T328 0.34 85.5 T408 35 Y (9)
PTB-CSF2 59569 59579 -0.64 0.18 0.17 0.01 0.00 0.18 0.30 PFS/NA T370 0.17 98.0 T408 40 Y (10)
PTB-CSF2 59579 59609 -0.26 0.10 0.17 0.01 0.00 0.07 0.21 PFS/NA T370 0.17 98.3 T408 40 Y (10)
NRC-FCs2 59514 59544 0.08 0.12 0.44 0.15 0.00 0.20 0.52 PFS/NA T389 0.23 80.9 T407 25 Y (11)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 03 FEB. 2022 by CH
(3) Report 07 FEB. 2022 by INRIM
(4) Report 03 FEB. 2022 by KRISS
(5) Report 07 FEB. 2022 by NICT
(6) Report 04 FEB. 2022 by NIM
(7) Report 03 FEB. 2022 by NPL
(8) Report 01 FEB. 2022 by NRC
(9) Report 03 FEB. 2022 by LNE-SYRTE
(10) Report 04 FEB. 2022 by PTB
(11) Corrected values and report from NRC on 28 JAN. 2022. Replaces values published in Circular T 407.
[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 59219-59609, and corresponding uncertainties.

Period of estimation d u
59579-59609 0.12x10-15 0.12x10-15 (2021 DEC 31 - 2022 JAN 30)

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

2021/22 0h UTC MJD C0'/ns N0 C1'/ns N1'
DEC 31 59579 1.5 89 17.4 89
JAN 1 59580 2.9 89 20.6 87
JAN 2 59581 1.5 89 20.9 81
JAN 3 59582 0.5 89 19.2 81
JAN 4 59583 1.5 89 18.3 74
JAN 5 59584 2.5 90 19.3 85
JAN 6 59585 3.7 89 20.0 83
JAN 7 59586 3.3 89 19.5 89
JAN 8 59587 2.3 89 19.2 89
JAN 9 59588 2.2 90 19.9 83
JAN 10 59589 1.9 89 18.5 77
JAN 11 59590 -0.2 89 17.6 86
JAN 12 59591 0.8 89 17.5 89
JAN 13 59592 1.9 90 16.7 88
JAN 14 59593 1.2 89 16.1 85
JAN 15 59594 1.7 89 17.8 89
JAN 16 59595 1.7 89 20.2 88
JAN 17 59596 2.7 90 19.3 90
JAN 18 59597 1.8 89 17.3 80
JAN 19 59598 -0.2 89 18.3 83
JAN 20 59599 0.2 89 18.5 81
JAN 21 59600 0.8 90 17.5 85
JAN 22 59601 1.3 89 17.2 86
JAN 23 59602 2.6 89 18.0 86
JAN 24 59603 2.7 89 19.7 87
JAN 25 59604 2.4 90 19.5 82
JAN 26 59605 0.7 89 17.9 84
JAN 27 59606 0.6 89 18.6 89
JAN 28 59607 2.2 89 20.8 83
JAN 29 59608 0.8 90 19.3 89
JAN 30 59609 -0.2 89 15.6 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
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 3.4 2.3
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 1.4
BIRM/PTB GPSPPP BI41 /PT13 1016-2018 / 1001-2020 0.3 2.8 1.4
BOM /PTB GPSPPP MABM /PT13 1011-2016 / 1001-2020 0.3 3.4 2.3
BY /PTB GPS MC BY46 /PT13 1020-2021 / 1001-2020 1.5 2.7 0.3
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 0.3
CNM /PTB GPS MC CN00 /PT13 NA_Al / 1001-2020 1.5 3.9 2.1 -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 GPS P3 DL05 /PT13 1014-2019 / 1001-2020 0.7 2.8 1.4
DMDM/PTB GPSPPP ZM68 /PT13 1011-2016 / 1001-2020 0.3 3.4 2.3
DTAG/PTB GPSPPP DT05 /PT13 1012-2019 / 1001-2020 0.3 2.8 1.1
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 0.7
HKO /PTB GPS P3 HKO1 /PT13 1011-2018 / 1001-2020 0.7 3.0 1.7
ICE /PTB GPS MC CE1_ /PT13 NA_Al / 1001-2020 2.5 7.2 1.3 -16.5 2111
IDN /PTB GPSPPP KI01 /PT13 1017-2018 / 1001-2020 0.3 2.9 1.4
IFAG/PTB GPSPPP IF20 /PT13 1014-2020 / 1001-2020 0.3 2.6 0.6
IGNA/PTB GPSPPP IG02 /PT13 NC_Al / 1001-2020 0.4 20.0 -7.0 2106
IMBH/PTB GPS P3 BH02 /PT13 1011-2019 / 1001-2020 0.7 2.8 1.4
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 2.2
INTI/PTB GPSPPP INTI /PT13 NC / 1001-2020 0.3 20.0
INXE/PTB GPSPPP NXRA /PT13 1012-2020 / 1001-2020 0.3 2.7 0.9
IPQ /PTB GPSPPP IP05 /PT13 1017-2021 / 1001-2020 0.3 2.5 0.3
JATC/PTB GPSPPP JA01 /PT13 1201-2018 / 1001-2020 0.3 3.0 1.6
JV /PTB GPSPPP JV02 /PT13 1101-2017 / 1001-2020 0.3 4.4 1.8
KRIS/PTB GPSPPP KRG1 /PT13 1017-2017 / 1001-2020 0.3 3.2 2.0
KZ /PTB GPS P3 KZ04 /PT13 1202-2021 / 1001-2020 0.7 4.0 0.3
LRTE/PTB GPSPPP LRRC /PT13 NC / 1001-2020 0.3 20.0
LT /PTB GPSPPP LT02 /PT13 1014-2018 / 1001-2020 0.3 3.0 1.6
LUX /PTB GPSPPP LU02 /PT13 1012-2021 / 1001-2020 0.3 2.5 0.3
MASM/PTB GPSPPP MN__ /PT13 1019-2018 / 1001-2020 0.3 2.9 1.5
MBM /PTB GPSPPP ME01 /PT13 NC / 1001-2020 0.3 20.0
MIKE/PTB GPSPPP MI04 /PT13 1016-2019 / 1001-2020 0.3 2.7 1.0
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 0.6
NIM /PTB GPSPPP IM06 /PT13 1001-2020 / 1001-2020 0.3 1.6 0.6
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 2.9
NMLS/PTB GPS MC LSM1 /PT13 1013-2017 / 1001-2020 1.5 3.4 2.1
NPLI/PTB GPSPPP LI2P /PT13 1013-2018 / 1001-2020 0.3 3.0 1.7
NRC /PTB GPSPPP NRC4 /PT13 1019-2017 / 1001-2020 0.3 3.1 1.9
NRL /PTB GPSPPP RL2_ /PT13 NC / 1001-2020 0.3 20.0
NSAI/PTB GPSPPP IE01 /PT13 2022-2019 / 1001-2020 0.3 7.1 1.1
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 0.9
PL /PTB GPSPPP PL_3 /PT13 1301-2021 / 1001-2020 0.3 2.9 0.3
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2020 0.7 3.1 1.8
SCL /PTB GPSPPP SC05 /PT13 1011-2018 / 1001-2020 0.3 3.0 1.7
SG /PTB GPSPPP SG01 /PT13 1019-2018 / 1001-2020 0.3 2.9 1.4
SIQ /PTB GPSPPP SI01 /PT13 1013-2019 / 1001-2020 0.3 3.6 1.0
SL /PTB GPSPPP SL01 /PT13 1017-2018 / 1001-2020 0.3 2.8 1.4
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 1.7
TL /PTB GPSPPP TLT1 /PT13 1001-2020 / 1001-2020 0.3 1.6 0.6
TP /PTB GPSPPP TP02 /PT13 1013-2021 / 1001-2020 0.3 2.5 0.3
UA /PTB GPS MC UA05 /PT13 2003-2018 / 1001-2020 3.0 7.2 1.6
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 GPSPPP VM02 /PT13 2001-2019 / 1001-2020 0.3 7.1 1.4
ZA /PTB GPSPPP ZA02 /PT13 1018-2018 / 1001-2020 0.3 2.9 1.5
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 0.6
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 0.6
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.3 0.7
ROA /PTB TWGPPP ROA01 /PTB05 0504-2019 0.3 1.4 0.7
SP /PTB TWGPPP SP01 /PTB05 0496-2019 0.3 1.7 0.7
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.9 1.4
VSL /PTB TWGPPP VSL01 /PTB05 0527-2021 0.3 1.3 0.6