CIRCULAR T 404 ISSN 1143-1393
2021 SEPTEMBER 09, 07h 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 JUL 29 AUG 3 AUG 8 AUG 13 AUG 18 AUG 23 AUG 28 Uncertainty/ns Notes
MJD 59424 59429 59434 59439 59444 59449 59454 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AGGO (La Plata) -644.2 -630.4 -642.6 -643.0 -609.9 -584.2 -566.6 1.0 20.0 20.0
AOS (Borowiec) -3.8 -3.3 -2.5 -1.1 0.0 0.5 1.3 0.3 3.0 3.0
APL (Laurel) 1.2 1.1 1.9 0.2 -0.5 -1.0 -1.2 0.4 19.5 19.5
AUS (Sydney) -519.3 -530.0 -520.9 -516.7 -512.7 -502.5 -508.3 0.3 11.2 11.2
BEV (Wien) 35.6 40.1 34.6 23.4 26.7 28.1 25.1 0.3 3.4 3.4
BFKH (Budapest) 3041.6 3073.5 3103.1 3136.3 3174.0 3209.6 3240.9 1.5 20.0 20.1
BIM (Sofiya) 14892.4 14930.2 14946.9 14967.4 14983.2 14990.2 14990.9 0.3 7.1 7.2
BIRM (Beijing) 1.6 1.2 -4.2 -7.4 -6.3 -6.0 -9.0 0.7 2.9 3.0
BOM (Skopje) - - 145.5 -14.4 -21.1 -32.3 -44.9 2.0 7.5 7.8 (1)
BY (Minsk) 1.3 0.6 0.6 1.7 1.6 1.7 1.0 1.5 12.1 12.1
CAO (Cagliari) -29224.1 -29335.4 -29451.7 -29564.6 -29682.9 -29793.4 -29906.1 1.5 20.0 20.1
CH (Bern-Wabern) -1.6 -0.7 -0.5 -0.9 -1.6 -0.9 0.2 0.3 1.5 1.6
CNES (Toulouse) -3.4 -4.3 -5.9 -8.3 -9.6 -11.0 -12.3 0.3 2.6 2.7
CNM (Queretaro) 7.9 3.5 -2.1 -2.8 0.6 7.0 5.3 1.5 3.9 4.2
CNMP (Panama) 15.8 17.2 11.8 -0.8 3.0 9.4 18.6 0.7 5.2 5.2
DFNT (Tunis) 4576.1 4651.9 4737.6 271.9 369.8 468.8 575.8 0.7 20.0 20.0 (2)
DLR (Oberpfaffenhofen) -16.1 -19.1 -19.3 -12.5 -7.3 -18.2 -15.5 0.7 2.9 3.0
DMDM (Belgrade) -14.5 -14.1 -10.1 -11.3 -20.0 -18.7 -19.9 0.3 3.4 3.4
DTAG (Frankfurt/M) 31.1 31.9 28.2 37.7 39.1 37.7 33.2 0.3 2.9 2.9
EIM (Thessaloniki) 8.7 0.5 7.9 11.4 -2.3 2.8 -2.9 4.0 11.2 11.9
ESTC (Noordwijk) 0.8 1.2 1.3 1.2 0.6 0.5 0.2 0.3 2.6 2.6
HKO (Hong Kong) -8.6 -1.5 -0.7 -0.8 -2.9 -5.5 -6.7 0.5 3.1 3.2
ICE (San Jose) -13.5 -13.3 -4.4 -6.8 -6.6 10.3 14.2 2.5 20.0 20.2
IDN (Serpong-Tangerang) 772.7 775.1 783.7 798.9 793.1 817.4 870.4 0.3 2.9 2.9
IFAG (Wettzell) -806.2 -803.1 -803.3 -806.1 -807.4 -808.3 -803.2 0.3 2.6 2.6
IGNA (Buenos Aires) 7370.6 7426.3 7480.6 7542.2 7604.4 7663.7 7730.9 5.0 20.0 20.6
IMBH (Sarajevo) -0.6 -1.8 -0.9 -3.3 -3.1 -0.1 -2.5 0.7 2.9 3.0
INCP (Lima) - - 282.9 369.3 495.3 70.3 - 5.0 20.0 20.6 (3)
INM (Bogota D.C.) 139.2 142.1 142.0 140.7 150.8 144.4 139.4 1.5 20.0 20.1
INPL (Jerusalem) -88.6 -90.4 -86.1 -91.7 -91.2 -85.0 -85.0 0.3 7.3 7.3
INTI (Buenos Aires) 95.0 87.0 39.9 109.1 55.3 93.9 127.3 5.0 20.0 20.6
INXE (Rio de Janeiro) -16.6 -12.1 -21.1 -16.6 -26.6 -23.3 -31.4 0.3 2.7 2.7
IPQ (Caparica) 414.0 424.0 430.7 428.5 428.9 435.5 437.5 0.3 20.0 20.0
IT (Torino) -1.2 -1.3 -1.8 -2.5 -2.2 -1.4 -0.8 0.3 1.7 1.7
JATC (Lintong) -2.0 -2.4 -2.2 -2.2 -2.3 -1.7 -1.2 0.3 3.0 3.0
JV (Kjeller) -63.9 -63.6 -67.9 -51.2 -64.2 -55.2 -50.6 0.3 4.3 4.3
KRIS (Daejeon) 9.9 11.1 11.6 12.8 13.0 13.5 14.0 0.3 3.2 3.2
KZ (Astana) 20.3 - - - - - -29.5 5.0 20.0 20.6
LRTE (Sao Carlos) 2.8 11.9 11.5 11.2 18.3 12.0 4.8 0.3 20.0 20.0
LT (Vilnius) 708.1 706.9 709.4 699.8 677.8 678.9 688.6 0.3 3.0 3.0
LUX (Belvaux) 8.4 15.9 22.1 24.1 21.8 15.1 9.3 0.3 2.6 2.7
LV (Riga) -455.1 -461.1 -469.0 -485.7 -481.2 -488.0 -483.8 1.5 12.2 12.3
MASM (Bayanzurkh) -315.8 -319.2 -317.8 -316.3 -313.9 -314.3 -307.7 0.3 2.9 2.9
MBM (Podgorica) - - - 249.7 286.3 323.9 333.4 1.5 20.0 20.1
MIKE (Espoo) 1.1 1.4 1.2 1.3 1.3 1.2 0.9 0.3 2.7 2.7
MSL (Lower Hutt) 26.5 -6.4 -13.1 -15.8 -25.1 -31.8 -13.7 1.5 20.0 20.1
NAO (Mizusawa) 322.9 326.7 332.3 332.7 337.4 340.2 346.3 2.0 20.0 20.1
NICT (Tokyo) 6.7 7.2 6.6 5.3 4.5 2.8 1.5 0.3 1.7 1.7
NIM (Beijing) -0.9 -0.5 -0.2 0.2 0.1 0.0 -0.2 0.3 1.7 1.7
NIMB (Bucharest) 172.9 110.3 150.5 226.9 309.9 342.5 351.3 0.3 7.4 7.5
NIMT (Pathumthani) 51.2 73.2 -32.7 -127.9 -108.2 -79.6 -53.9 0.7 20.0 20.0
NIS (Cairo) 44.3 36.1 20.1 79.9 92.3 94.6 100.4 0.7 20.0 20.0 (4)
NIST (Boulder) -1.8 -0.8 -0.6 0.1 0.7 0.6 0.7 0.3 2.3 2.3
NMIJ (Tsukuba) -3.0 -4.7 -6.4 -7.1 -3.2 1.4 5.4 0.3 3.4 3.4
NMLS (Sepang) -1265.5 -1283.8 -1306.1 -1318.6 -1329.7 -1333.4 -1355.6 1.5 3.4 3.7
NPL (Teddington) 2.1 2.2 2.4 1.8 0.6 0.3 0.3 0.3 1.5 1.6
NPLI (New-Delhi) 0.5 0.6 0.3 0.8 0.4 0.6 0.4 0.3 3.0 3.0
NRC (Ottawa) 44.8 47.8 50.9 54.4 8.5 8.1 0.2 0.3 3.2 3.2 (5)
NRL (Washington DC) -1.2 -0.9 -0.6 -1.4 -3.2 -0.7 2.2 0.3 19.9 19.9
NSAI (Dublin) -273.8 -272.3 -276.2 -278.2 -278.0 -276.2 -279.7 0.3 7.1 7.2
NTSC (Lintong) -0.3 -1.8 -0.8 -0.7 -1.3 -1.9 -2.3 0.3 2.7 2.7
ONBA (Buenos Aires) 1330.8 1343.2 1333.5 1341.0 1370.6 1366.9 1366.6 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -2.3 -3.6 -4.2 -3.6 3.6 -8.7 -5.5 0.3 20.0 20.0
OP (Paris) -0.7 -1.1 -1.1 -1.0 -1.3 -1.1 -1.4 0.3 1.4 1.4
ORB (Bruxelles) 1.8 2.0 2.1 3.2 2.5 2.1 1.4 0.3 2.7 2.7
PL (Warszawa) 5.9 7.4 8.9 10.2 11.3 11.8 12.6 0.3 2.9 3.0
PTB (Braunschweig) 0.6 0.9 1.0 1.2 0.8 0.5 0.5 0.1 0.8 0.8
ROA (San Fernando) -2.0 -2.1 -2.1 -2.9 -2.4 -1.6 -1.3 0.3 1.5 1.6
SASO (Riyadh) -2441.0 -2455.0 -2465.4 -2474.6 -2488.4 -2505.2 -2523.1 0.7 3.1 3.2
SCL (Hong Kong) -51.0 -18.7 3.0 27.4 50.1 71.8 95.2 0.3 3.1 3.1
SG (Singapore) -9.7 -17.9 -7.2 2.0 13.6 3.0 -4.1 0.3 2.9 2.9
SIQ (Ljubljana) 1267.6 1396.2 1519.2 1655.5 1766.4 1882.4 2038.9 0.3 3.7 3.7
SL (Colombo) 44.6 46.4 42.3 40.6 45.6 46.2 43.6 0.3 2.9 2.9
SMD (Bruxelles) -2.1 -1.5 -3.2 -5.0 3.3 -3.7 -6.5 0.3 3.2 3.2
SMU (Bratislava) - - - - - - -
SP (Boras) -0.2 -0.3 -0.4 -0.1 0.1 0.0 0.2 0.3 1.7 1.7
SU (Moskva) -0.1 0.0 -0.1 -0.3 -0.5 -1.0 -1.4 0.3 2.0 2.0
TL (Chung-Li) 2.5 2.9 2.7 3.2 2.5 2.6 2.7 0.3 1.7 1.7
TP (Praha) 13.0 14.2 11.0 1.1 5.1 0.5 7.0 0.3 2.9 2.9
UA (Kharkov) -5.1 -3.4 -2.0 -1.2 -6.7 -1.1 -11.8 3.0 7.1 7.7
UAE (Abu Dhabi) - - - - - - -
UME (Gebze-Kocaeli) -11.5 -10.3 -9.4 -10.7 -11.9 -12.8 -12.3 0.3 3.4 3.4
USNO (Washington DC) -2.0 -2.1 -2.3 -2.3 -1.5 -1.8 -1.9 0.2 1.5 1.5
VMI (Ha Noi) -3.3 -0.2 -4.3 11.8 12.1 10.6 10.2 0.3 7.1 7.2
VSL (Delft) -4.0 -3.6 8.2 6.7 1.6 -5.1 -2.3 0.3 1.5 1.6
ZA (Pretoria) 0.5 6.5 9.1 6.5 -2.2 -3.8 -1.2 0.3 2.9 2.9
- Notes on section 1:
(1) BOM : Apparent time step of UTC(BOM) of about +145 ns on MJD 59436.46.
(2) DFNT : Apparent time step of UTC(DFNT) of about +4525 ns on MJD 59437.77.
(3) INCP : Apparent time step of UTC(INCP) of about +550 ns on MJD 59444.70.
(4) NIS : Apparent time step of UTC(NIS) of about -55 ns between MJD 59434 and 59439.
(5) NRC : Time steps of UTC(NRC) of +48 ns on MJDs 59442.59 and +8 ns on MJD 59452.54.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 59424 - 59454 6.501x10-13 (2021 JUL 29 - 2021 AUG 28)
New correction 59454 - 59484 6.501x10-13 (2021 AUG 28 - 2021 SEP 27)
New correction foreseen 59484 - 59514 6.501x10-13 (2021 SEP 27 - 2021 OCT 27)

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 59424 59454 -17.78 8.00 8.00 0.00 0.00 0.07 11.31 PFS/NA T148 8.00 100.0 T403 36 Y (1)
PTB-CS2 59424 59454 -4.93 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12.00 100.0 T403 35 Y (1)
IT-CsF2 59419 59439 -0.14 0.21 0.35 0.10 0.01 0.28 0.51 PFS/NA T318 0.19 98.0 T403 15 Y (2)
NICT-Sr1 59399 59424 0.52 0.05 0.08 0.42 0.08 0.23 0.49 0.4 [1] T371 0.06 1.1 T387 12 Y (3)
NICT-Sr1 59424 59454 0.31 0.03 0.07 0.25 0.08 0.20 0.34 0.4 [1] T371 0.06 2.0 T387 12 Y (3)
NMIJ-Yb1 59424 59454 -0.20 0.01 0.13 0.04 0.10 0.20 0.26 0.5 [1] T392 0.36 94.5 T398 12 Y (4)
NPL-CsF2 59439 59454 0.61 0.21 0.20 0.13 0.05 0.37 0.49 PFS/NA T284 0.23 92.6 T403 18 Y (5)
NRC-FCs2 59424 59454 0.53 0.11 0.21 0.10 0.00 0.20 0.32 PFS/NA T389 0.23 97.1 T403 21 Y (6)
SYRTE-FO1 59424 59454 -0.06 0.20 0.33 0.10 0.00 0.20 0.44 PFS/NA T301 0.37 66.5 T403 33 Y (7)
SYRTE-FORb 59424 59454 0.51 0.20 0.25 0.05 0.00 0.20 0.38 0.6 [1] T328 0.34 96.3 T403 36 Y (8)
SYRTE-Sr2 59424 59429 0.85 0.01 0.03 0.12 0.03 0.98 0.99 0.4 [1] T350 0.05 86.1 T403 2 Y (8)
PTB-CSF1 59419 59454 0.34 0.07 0.34 0.01 0.00 0.06 0.35 PFS/NA T371 0.28 97.7 T402 29 Y (9)
PTB-CSF2 59419 59454 0.00 0.09 0.17 0.07 0.00 0.06 0.21 PFS/NA T370 0.17 95.3 T403 39 Y (9)
SU-CsFO2 59424 59454 0.45 0.25 0.22 0.11 0.00 0.20 0.40 PFS/NA T315 0.50 92.9 T403 31 Y (10)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 06 SEP. 2021 by INRIM
(3) Report 06 SEP. 2021 by NICT
(4) Report 03 SEP. 2021 by NMIJ
(5) Report 02 SEP. 2021 by NPL
(6) Report 31 AUG. 2021 by NRC
(7) Report 09 SEP. 2021 by LNE-SYRTE
(8) Report 03 SEP. 2021 by LNE-SYRTE
(9) Report 02 SEP. 2021 by PTB
(10)Report 31 AUG. 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 59064-59454, and corresponding uncertainties.

Period of estimation d u
59424-59454 0.21x10-15 0.13x10-15 (2021 JUL 29 - 2021 AUG 28)

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'
JUL 29 59424 -0.2 89 22.3 83
JUL 30 59425 0.9 90 19.9 90
JUL 31 59426 -1.2 89 16.3 88
AUG 1 59427 -3.2 89 16.9 86
AUG 2 59428 -0.9 89 20.9 87
AUG 3 59429 -0.8 90 21.5 83
AUG 4 59430 0.0 89 17.5 85
AUG 5 59431 -0.4 89 15.6 86
AUG 6 59432 -0.8 89 16.9 86
AUG 7 59433 -0.3 90 15.8 90
AUG 8 59434 -1.8 89 14.3 89
AUG 9 59435 -2.1 89 14.7 89
AUG 10 59436 -1.6 89 17.9 89
AUG 11 59437 -1.9 90 19.9 85
AUG 12 59438 0.0 89 18.9 84
AUG 13 59439 -1.2 89 18.1 83
AUG 14 59440 -2.0 89 20.6 89
AUG 15 59441 -2.3 90 21.6 85
AUG 16 59442 -2.3 89 14.7 49
AUG 17 59443 -0.6 89 - 0
AUG 18 59444 -1.6 89 15.4 58
AUG 19 59445 -2.3 90 20.0 83
AUG 20 59446 -0.9 89 18.8 86
AUG 21 59447 -1.4 89 17.2 82
AUG 22 59448 -0.8 89 17.4 85
AUG 23 59449 -0.7 90 17.5 90
AUG 24 59450 -0.2 89 16.7 87
AUG 25 59451 0.0 89 18.4 87
AUG 26 59452 -1.5 89 20.0 87
AUG 27 59453 -2.6 90 18.4 86
AUG 28 59454 -3.6 89 14.6 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 1.4
APL /PTB GPSPPP AP04 /PT13 NC / 1001-2020 0.4 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 2.1
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 2.0 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 1.9 -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 0.9
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 0.4
HKO /PTB GPSPPP HKO1 /PT13 1011-2018 / 1001-2020 0.5 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 0.3
IGNA/PTB GPS MC IG02 /PT13 NC / 1001-2020 5.0 20.0
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 1.4
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 3.1 1.9
KZ /PTB GPS P3 KZ03 /PT13 NC / 1001-2020 5.0 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 1.4
LUX /PTB GPSPPP LU01 /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 2.8 1.3
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 1.5 0.4
NIM /PTB GPSPPP IM06 /PT13 1001-2020 / 1001-2020 0.3 1.5 0.3
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 1.9
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 0.3 7.1 0.9
NTSC/PTB GPSPPP NTP1 /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 0.6
PL /PTB GPSPPP PL_3 /PT13 1014-2018 / 1001-2020 0.3 2.9 1.4
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 0.7
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 3.1 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 0.3
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 7.1 1.4
UAE /PTB NL
UME /PTB GPSPPP UM01 /PT13 1011-2016 / 1001-2020 0.3 3.3 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 2.8 1.3
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 0.4
IT /PTB TWGPPP IT02 /PTB05 0502-2019 0.3 1.5 0.6
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 2.2 1.6
NPL /PTB TWGPPP NPL02 /PTB05 0525-2021 0.3 1.3 0.4
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.2 0.5
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 0.4