CIRCULAR T 389 ISSN 1143-1393
2020 JUNE 09, 10h 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 APR 30 MAY 5 MAY 10 MAY 15 MAY 20 MAY 25 MAY 30 Uncertainty/ns Notes
MJD 58969 58974 58979 58984 58989 58994 58999 uA uB u
Laboratory k [UTC-UTC(k)]/ns
AOS (Borowiec) -2.6 -2.6 -2.7 -2.9 -3.4 -3.6 -4.3 0.3 2.9 2.9
APL (Laurel) 3.5 4.1 0.9 0.2 0.7 -0.4 0.7 0.3 20.0 20.0
AUS (Sydney) -409.2 -406.3 -405.4 -412.8 -415.2 -418.4 -432.3 0.3 6.6 6.6
BEV (Wien) 25.8 38.2 39.9 39.4 38.6 37.0 29.8 0.3 3.5 3.6
BFKH (Budapest) 746.3 771.3 787.8 812.1 828.8 846.2 867.5 1.5 20.0 20.1
BIM (Sofiya) 12727.5 12764.7 12813.8 12843.0 12857.9 12875.0 12916.4 0.7 7.1 7.2
BIRM (Beijing) -6.5 -6.4 -6.1 -2.8 -9.2 -13.8 -9.1 0.5 2.8 2.8
BOM (Skopje) -3484.7 -3501.7 -3513.6 -3525.6 -3544.8 -3554.3 -3563.5 1.5 8.6 8.7
BY (Minsk) 1.2 0.9 1.5 1.4 1.1 1.0 1.6 1.5 12.2 12.3
CAO (Cagliari) -19232.8 -19329.7 -19434.3 -19548.9 -19661.3 -19772.1 -19882.8 1.5 20.0 20.0
CH (Bern-Wabern) -2.1 -1.7 -1.0 -1.1 -0.7 0.9 1.5 0.3 2.3 2.4
CNES (Toulouse) 5.2 8.6 12.4 14.7 16.3 13.2 9.6 0.3 3.0 3.0
CNM (Queretaro) 3.4 -4.2 1.0 3.0 2.5 -5.7 0.5 2.5 11.2 11.5
CNMP (Panama) - -19.8 -7.5 2.3 5.4 -5.2 -12.7 0.7 7.5 7.6
DFNT (Tunis) 2827.0 3066.0 3307.0 3528.6 3779.8 4035.4 4277.4 0.7 20.0 20.0
DLR (Oberpfaffenhofen) 183.5 66.2 - -6.6 2.8 11.8 27.0 0.7 3.6 3.6
DMDM (Belgrade) -22.7 -9.3 2.9 11.1 13.9 12.3 14.9 0.3 3.5 3.6
DTAG (Frankfurt/M) 6.6 2.1 -0.1 - -8.9 -4.1 -0.8 0.3 2.8 2.8
EIM (Thessaloniki) 9.7 6.8 2.8 17.9 -4.6 4.0 7.1 4.0 11.2 11.9
ESTC (Noordwijk) -1.2 -1.6 0.0 1.7 3.0 3.7 4.1 0.3 3.3 3.4
HKO (Hong Kong) 339.2 358.2 366.9 371.3 383.6 392.4 393.6 0.4 3.1 3.1
ICE (San Jose) -33.6 -29.3 - -15.2 -19.9 -13.7 -13.0 3.0 20.0 20.2
IDN (Serpong-Tangerang) 1966.3 1998.5 2004.2 2029.2 2043.6 2037.0 2042.5 0.3 2.8 2.8
IFAG (Wettzell) -841.2 -823.3 -804.3 -802.9 -808.6 -810.5 -813.8 0.3 3.2 3.2
IGNA (Buenos Aires) - - - - - - -
IMBH (Sarajevo) -1.9 -0.3 2.1 3.6 0.9 -1.8 -0.9 0.4 2.8 2.8
INCP (Lima) - - - - - - -
INM (Bogota D.C.) -18.9 -17.0 - -22.5 -25.0 -31.9 -34.2 1.5 20.0 20.1
INPL (Jerusalem) -43.4 -48.9 -60.6 38.9 33.9 43.1 44.8 0.3 7.4 7.4 (1)
INTI (Buenos Aires) 28.8 40.7 - 31.5 30.2 45.6 34.9 2.5 20.0 20.2
INXE (Rio de Janeiro) -21.1 -20.8 -23.8 -22.0 -19.3 -12.4 -17.4 0.3 20.0 20.0
IPQ (Caparica) 212.1 218.8 224.6 232.6 232.8 235.5 229.4 0.5 20.0 20.0
IT (Torino) -3.7 -2.1 0.0 1.0 -0.3 0.9 2.6 0.3 1.2 1.2
JATC (Lintong) -1.5 -1.5 -1.6 -1.6 -1.5 0.1 2.0 0.3 2.9 2.9
JV (Kjeller) 15.0 3.2 -13.0 -7.0 0.4 -2.7 -2.5 0.3 4.3 4.3
KRIS (Daejeon) 25.2 28.5 32.7 35.5 37.9 40.1 36.5 0.3 3.2 3.3
LRTE (Sao Carlos) 1.4 -7.8 -12.6 -16.4 -19.1 -23.3 -30.7 0.3 20.0 20.0
LT (Vilnius) 971.1 970.0 974.5 951.7 920.1 908.0 908.4 0.3 2.9 2.9
LUX (Belvaux) -7.7 -13.7 -17.0 -12.6 -13.2 -7.4 -6.4 0.3 3.1 3.1
MASM (Bayanzurkh) -314.8 -335.8 -366.4 -391.8 -422.9 -445.4 -479.5 0.4 2.9 2.9
MBM (Podgorica) - 689.2 714.7 744.8 769.0 795.1 750.8 0.7 20.0 20.0 (2)
MIKE (Espoo) 4.0 3.7 3.8 3.9 3.8 4.2 4.9 0.3 2.6 2.6
MSL (Lower Hutt) -42.0 -40.3 -30.9 -21.1 -7.2 -2.9 10.3 1.5 20.0 20.1
NAO (Mizusawa) 37.1 29.6 31.5 30.5 36.0 32.6 37.1 2.0 20.0 20.1
NICT (Tokyo) -11.4 -9.7 -8.3 -7.3 -5.9 -5.3 -4.8 0.3 2.2 2.2
NIM (Beijing) 3.6 3.5 3.3 2.8 2.6 2.8 2.6 0.3 2.0 2.1
NIMB (Bucharest) 9133.5 9172.1 9212.7 9262.3 9305.1 9353.5 9396.0 0.4 7.6 7.6
NIMT (Pathumthani) - - - - - - -
NIS (Cairo) 14.8 19.7 23.4 27.3 32.5 45.2 44.7 0.7 20.0 20.0
NIST (Boulder) -1.7 -1.9 -2.3 -2.7 -2.4 -2.1 -2.4 0.3 1.9 1.9
NMIJ (Tsukuba) 2.7 3.5 4.2 4.1 4.3 2.0 -1.3 0.3 3.8 3.8
NMLS (Sepang) -2646.2 -2697.1 -2728.9 -2775.2 -2749.3 -2721.3 -2697.9 1.5 4.3 4.6
NPL (Teddington) 0.2 -0.9 -1.1 0.0 0.5 0.7 1.3 0.3 2.6 2.7
NPLI (New-Delhi) -1.1 -0.4 -0.3 -0.4 -0.5 -0.6 -0.6 0.3 3.0 3.0
NRC (Ottawa) -26.8 -21.1 -18.1 -18.3 -10.0 -1.0 13.2 0.3 3.1 3.1
NRL (Washington DC) 5.5 5.1 8.3 6.7 7.2 -2.7 -2.3 0.3 20.0 20.0
NTSC (Lintong) -0.4 -0.7 -1.7 -1.2 -0.1 2.0 3.9 0.3 2.8 2.8
ONBA (Buenos Aires) 453.5 466.9 463.8 466.5 - - - 2.0 11.2 11.4
ONRJ (Rio de Janeiro) -0.7 3.7 -1.5 3.6 6.6 6.0 -3.4 0.4 20.0 20.0
OP (Paris) -0.4 -0.3 -0.2 -0.3 -0.2 -0.4 -0.2 0.3 1.1 1.2
ORB (Bruxelles) 1.4 0.9 0.1 -0.1 0.1 0.2 0.3 0.3 3.3 3.3
PL (Warszawa) 2.4 3.6 4.6 4.5 4.5 4.2 3.2 0.3 2.8 2.9
PTB (Braunschweig) 0.2 0.4 0.5 0.4 0.5 0.8 1.0 0.1 0.6 0.6
ROA (San Fernando) -2.5 -2.7 -1.8 -2.3 -2.5 -2.6 -1.6 0.3 1.2 1.2
SASO (Riyadh) -1308.9 -1322.1 -1327.1 -1330.5 -1348.0 -1362.0 -1379.2 0.5 3.2 3.2
SCL (Hong Kong) 33.8 34.8 32.1 25.2 16.9 12.3 6.3 1.0 3.1 3.2
SG (Singapore) -3.5 20.4 23.3 24.2 20.6 14.3 11.1 0.3 2.8 2.8 (3)
SIQ (Ljubljana) 20.7 21.1 47.2 33.9 19.6 27.9 25.6 0.3 3.6 3.7
SL (Colombo) - - 135.7 140.7 140.7 152.5 154.1 0.3 2.8 2.8
SMD (Bruxelles) -2.2 -0.3 -4.4 -3.4 -9.0 -6.0 -0.4 0.3 3.2 3.3
SMU (Bratislava) - - -103.3 -107.2 -104.1 -101.2 -107.7 1.5 12.2 12.3
SP (Boras) 2.2 2.5 2.8 2.8 2.7 3.0 3.0 0.3 1.1 1.1
SU (Moskva) 0.3 -0.4 -0.2 -0.2 0.4 0.0 -0.2 0.7 2.0 2.1
TL (Chung-Li) -1.3 -0.6 0.1 0.8 1.4 1.9 2.1 0.3 2.3 2.3
TP (Praha) 1.4 -0.2 -9.0 -7.1 -5.9 -8.5 -6.3 0.3 2.8 2.8
UA (Kharkov) -11.1 -1.4 11.6 -1.8 1.5 4.7 2.9 1.5 9.5 9.6
UAE (Abu Dhabi) 16.7 14.1 11.3 19.1 21.0 13.7 19.3 4.0 8.9 9.8
UME (Gebze-Kocaeli) 2.8 3.9 2.4 0.9 -1.8 -4.4 -6.7 0.3 3.5 3.6
USNO (Washington DC) 1.4 1.7 1.7 1.2 1.1 0.4 0.2 0.2 1.3 1.3
VMI (Ha Noi) -50.8 -33.6 -18.5 -4.3 3.3 2.9 -4.8 0.3 7.1 7.1
VSL (Delft) 2.3 -5.1 -2.4 -6.2 -5.2 0.4 -6.0 0.3 1.7 1.7
ZA (Pretoria) -2.2 -3.7 -6.3 -4.6 1.7 4.6 0.3 0.3 2.9 2.9
- Notes on section 1:
(1) INPL : Time step of -100 ns on MJD 58980.55.
(2) MBM : Apparent time step of about +73 ns near MJD 58997.5.
(3) SG : Apparent time step of about -18 ns on MJD 58973.99.

2 - Difference between the normalized frequencies of EAL and TAI.
Interval of validity f(EAL)-f(TAI)
Steering correction 58969 - 58999 6.493x10-13 (2020 APR 30 - 2020 MAY 30)
New correction 58999 - 59029 6.493x10-13 (2020 MAY 30 - 2020 JUN 29)
New correction foreseen 59029 - 59059 6.493x10-13 (2020 JUN 29 - 2020 JUL 29)

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 58969 58999 -3.26 8.00 8.00 0.00 0.00 0.07 11.31 PFS/NA T148 8. 100 T388 36 Y (1)
PTB-CS2 58969 58999 -1.29 5.00 12.00 0.00 0.00 0.07 13.00 PFS/NA T148 12. 100 T388 35 Y (1)
METAS-FOC2 58969 58999 -1.85 0.06 1.40 0.01 0.04 0.20 1.42 PFS/NA T371 1.99 99.3 T388 5 Y (2)
IT-CsF2 58964 58974 -0.76 0.66 0.17 0.22 0.01 0.53 0.89 PFS/NA T318 0.19 83.0 T388 8 Y (3)
IT-CsF2 58989 58999 -1.80 0.67 0.17 0.14 0.01 0.53 0.88 PFS/NA T318 0.19 90.0 T388 8 Y (3)
NRC-FCs2 58969 58994 -0.13 0.11 0.39 0.11 0.00 0.23 0.48 PFS/NA [1] 0.23 95.7 N/A 0 Y (4)
NRC-FCs2 58939 58969 -0.70 0.11 0.54 0.12 0.00 0.20 0.60 PFS/NA [1] 0.23 90.7 N/A 0 Y (4)
NRC-FCs2 58904 58939 -0.51 0.09 0.39 0.12 0.00 0.17 0.45 PFS/NA [1] 0.23 87.3 N/A 0 Y (4)
NRC-FCs2 58879 58904 -0.74 0.09 0.31 0.11 0.00 0.23 0.41 PFS/NA [1] 0.23 96.0 N/A 0 Y (4)
NRC-FCs2 58844 58879 -0.65 0.08 0.35 0.10 0.00 0.17 0.41 PFS/NA [1] 0.23 97.0 N/A 0 Y (4)
NRC-FCs2 58814 58844 -0.97 0.10 0.33 0.12 0.00 0.20 0.41 PFS/NA [1] 0.23 85.0 N/A 0 Y (4)
NRC-FCs2 58784 58814 -0.43 0.10 0.22 0.10 0.00 0.20 0.33 PFS/NA [1] 0.23 98.0 N/A 0 Y (4)
NRC-FCs2 58754 58784 -0.33 0.10 0.21 0.10 0.00 0.20 0.32 PFS/NA [1] 0.23 98.0 N/A 0 Y (4)
SYRTE-FO1 58969 58989 -0.98 0.20 0.32 0.06 0.00 0.28 0.47 PFS/NA T301 0.37 96.7 T388 27 Y (5)
SYRTE-FO2 58969 58999 -0.50 0.20 0.21 0.05 0.00 0.20 0.35 PFS/NA T301 0.23 95.7 T388 32 Y (5)
PTB-CSF1 58969 58999 -0.18 0.07 0.28 0.03 0.01 0.07 0.30 PFS/NA T371 0.28 93.2 T388 25 Y (6)
PTB-CSF2 58969 58999 -0.45 0.11 0.17 0.02 0.01 0.07 0.21 PFS/NA T370 0.17 94.7 T388 38 Y (6)
SU-CsFO2 58969 58999 -0.11 0.32 0.22 0.13 0.00 0.46 0.61 PFS/NA T315 0.50 36.0 T387 27 Y (7)

Notes:
(1) Continuously operating as a clock participating to TAI
(2) Report 04 JUN. 2020 by CH
(3) Report 08 JUN. 2020 by INRIM
(4) Report 04 JUN. 2020 by NRC
(5) Report 04 JUN. 2020 by LNE-SYRTE
(6) Report 04 JUN. 2020 by PTB
(7) Report 02 JUN. 2020 by SU
[1] Beattie S. et al., First accuracy evaluation of the NRC-FCs2 primary frequency standard, Metrologia 57 (2020) 035010 (15pp)

Table 2: Estimate of d by the BIPM based on all PSFS measurements identified to be used for TAI steering
over the period MJD58609-58999, and corresponding uncertainties.

Period of estimation d u
58969-58999 -0.45x10-15 0.13x10-15 (2020 APR 30 - 2020 MAY 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

2020 0h UTC MJD C0'/ns N0 C1'/ns N1'
APR 30 58969 3.5 89 27.0 89
MAY 1 58970 2.4 90 27.8 87
MAY 2 58971 2.0 89 28.7 87
MAY 3 58972 4.0 89 28.4 87
MAY 4 58973 4.2 89 28.6 89
MAY 5 58974 2.2 90 27.5 89
MAY 6 58975 4.0 89 23.4 86
MAY 7 58976 5.1 89 23.0 88
MAY 8 58977 3.5 90 25.1 89
MAY 9 58978 3.2 91 25.8 81
MAY 10 58979 2.3 90 26.2 73
MAY 11 58980 3.4 89 26.3 85
MAY 12 58981 4.0 89 25.5 88
MAY 13 58982 2.7 90 24.6 87
MAY 14 58983 2.6 89 24.1 86
MAY 15 58984 2.2 89 25.0 89
MAY 16 58985 2.4 89 26.3 89
MAY 17 58986 2.4 90 27.2 90
MAY 18 58987 1.8 89 26.9 83
MAY 19 58988 2.6 89 27.2 88
MAY 20 58989 3.0 89 27.7 82
MAY 21 58990 2.9 90 27.9 90
MAY 22 58991 2.6 89 26.7 86
MAY 23 58992 2.1 89 25.7 86
MAY 24 58993 2.0 89 26.7 89
MAY 25 58994 2.2 90 26.3 89
MAY 26 58995 1.3 89 25.6 84
MAY 27 58996 1.1 89 28.1 88
MAY 28 58997 0.7 89 28.8 87
MAY 29 58998 -0.3 90 27.6 89
MAY 30 58999 1.0 89 27.2 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
AOS /PTB GPSPPP AO_4 /PT13 1014-2018 / 1001-2018 0.3 2.8 1.3
APL /PTB GPSPPP AP02 /PT13 NC / 1001-2018 0.3 20.0
AUS /PTB GPSPPP AU04 /PT13 1002-2010 / 1001-2018 0.3 6.6 4.4
BEV /PTB GPSPPP BE1_ /PT13 1012-2016 / 1001-2018 0.3 3.5 2.4
BFKH/PTB GPS MC MK01 /PT13 NC / 1001-2018 1.5 20.0
BIM /PTB GPSPPP BM51 /PT13 2007-2019 / 1001-2018 0.7 7.1 0.9
BIRM/PTB GPSPPP BI41 /PT13 1016-2018 / 1001-2018 0.5 2.7 0.9
BOM /PTB GPS MC MABM /PT13 NA_Al / 1001-2018 1.5 8.6 5.0 +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 2.9 1.4
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 7.5 2.7 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 1012-2016 / 1001-2018 0.7 3.5 2.5
DMDM/PTB GPSPPP ZM68 /PT13 1011-2016 / 1001-2018 0.3 3.5 2.5
DTAG/PTB GPSPPP DT05 /PT13 1012-2019 / 1001-2018 0.3 2.7 0.8
EIM /PTB GPS MC EI__ /PT13 NA / 4.0 11.2 10.0
ESTC/PTB GPSPPP ES04 /PT13 1019-2016 / 1001-2018 0.3 3.3 2.1
HKO /PTB GPSPPP HKO2 /PT13 1011-2018 / 1001-2018 0.4 3.0 1.6
ICE /PTB GPS MC CE1_ /PT13 NC / 1001-2018 3.0 20.0
IDN /PTB GPSPPP KI01 /PT13 1017-2018 / 1001-2018 0.3 2.7 1.1
IFAG/PTB GPSPPP IF14 /PT13 1016-2017 / 1001-2018 0.3 3.2 1.7
IGNA/PTB NL
IMBH/PTB GPSPPP BH02 /PT13 1011-2019 / 1001-2018 0.4 2.7 0.9
INCP/PTB NL
INM /PTB GPS MC IC__ /PT13 NC / 1001-2018 1.5 20.0
INPL/PTB GPSPPP IL06 /PT13 2003-2016 / 1001-2018 0.3 7.4 2.3
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 2.8 1.3
JV /PTB GPSPPP JV02 /PT13 1101-2017 / 1001-2018 0.3 4.3 1.7
KRIS/PTB GPSPPP KRG1 /PT13 1017-2017 / 1001-2018 0.3 3.2 2.1
LRTE/PTB GPSPPP LRRC /PT13 NC / 1001-2018 0.3 20.0
LT /PTB GPSPPP LT02 /PT13 1014-2018 / 1001-2018 0.3 2.8 1.3
LUX /PTB GPSPPP LU01 /PT13 1012-2018 / 1001-2018 0.3 3.0 1.6
MASM/PTB GPSPPP MN__ /PT13 1019-2018 / 1001-2018 0.4 2.8 1.2
MBM /PTB GPS P3 ME01 /PT13 NC / 1001-2018 0.7 20.0
MIKE/PTB GPSPPP MI04 /PT13 1016-2019 / 1001-2018 0.3 2.6 0.8
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 2.2 1.4
NIM /PTB GPSPPP IM06 /PT13 1001-2018 / 1001-2018 0.3 2.1 1.3
NIMB/PTB GPSPPP MB02 /PT13 NA_Al / 1001-2018 0.4 7.6 3.0 32.2 1611
NIMT/PTB 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 3.8 3.3
NMLS/PTB GPS MC LSM1 /PT13 1013-2017 / 1001-2018 1.5 4.3 3.3
NPL /PTB GPSPPP NPL1 /PT13 1015-2019 / 1001-2018 0.3 2.6 0.8
NPLI/PTB GPSPPP LI2P /PT13 1013-2018 / 1001-2018 0.3 3.0 1.6
NRC /PTB GPSPPP NRC4 /PT13 1019-2017 / 1001-2018 0.3 3.1 1.9
NRL /PTB GPSPPP RL2_ /PT13 NC / 1001-2018 0.3 20.0
NTSC/PTB GPSPPP NTP1 /PT13 1001-2016 / 1001-2018 0.3 2.9 2.4
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 1018-2017 / 1001-2018 0.3 3.3 2.1
PL /PTB GPSPPP PL_3 /PT13 1014-2018 / 1001-2018 0.3 2.8 1.3
SASO/PTB GPSPPP SAS0 /PT13 1020-2017 / 1001-2018 0.5 3.1 1.7
SCL /PTB GPS P3 SC05 /PT13 1011-2018 / 1001-2018 1.0 3.0 1.6
SG /PTB GPSPPP SG02 /PT13 1019-2018 / 1001-2018 0.3 2.7 1.1
SIQ /PTB GPSPPP SI01 /PT13 1013-2019 / 1001-2018 0.3 3.6 0.8
SL /PTB GPSPPP SL01 /PT13 1017-2018 / 1001-2018 0.3 2.7 0.9
SMD /PTB GPSPPP SD01 /PT13 1014-2017 / 1001-2018 0.3 3.2 2.1
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 2.2 1.5
TL /PTB GPSPPP TLT1 /PT13 1001-2018 / 1001-2018 0.3 2.3 1.5
TP /PTB GPSPPP TP02 /PT13 1015-2019 / 1001-2018 0.3 2.7 0.9
UA /PTB GPS MC UA04 /PT13 2003-2011 / 1001-2018 1.5 9.5 6.4
UAE /PTB GPS MC AE__ /PT13 2001-2016 / 1001-2018 4.0 8.9 5.5
UME /PTB GPSPPP UM01 /PT13 1011-2016 / 1001-2018 0.3 3.5 2.5
VMI /PTB GPSPPP VM02 /PT13 2001-2019 / 1001-2018 0.3 7.1 0.9
ZA /PTB GPSPPP ZA02 /PT13 1018-2018 / 1001-2018 0.3 2.8 1.2
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 1.8
IT /PTB TWGPPP IT02 /PTB05 0502-2019 0.3 1.0 0.1
NIST/PTB TWGPPP NIST01/PTB05 0393-2015 0.3 1.9 1.4
OP /PTB TWSDRR OP51 /PTB55 0517-2020 0.3 1.0 0.0
ROA /PTB TWGPPP ROA01 /PTB05 0504-2019 0.3 1.0 0.0
SP /PTB TWGPPP SP01 /PTB05 0496-2019 0.3 1.0 0.1
USNO/PTB TWGPPP USNO01/PTB05 0395-2016 0.3 1.6 1.0
VSL /PTB TWGPPP VSL01 /PTB05 0295-2015 0.3 1.6 1.1