VLBI Frequency Comparison in 2018 Ver.5

Old Web paeg: [ Ver.0] [ Ver.1] [ Ver.2] [ Ver.3] [ Ver.4] [ Ver.6]

1. Experiments List

Experiment information and analysis VLBI MK3 Database Files
Month Exp.
2018 Aug. 14Aug.(iv8226), 21Aug.(iv8232), 31Aug.(iv8243)
2018 Oct. 04Oct.(gv8278), 14Oct.(gv8287), 24Oct.(gv8297)
2018 Nov. 04Nov.(gv8308), 14Nov.(gv8318), 24Nov.(gv8328),
2018 Dec. 04Dec.(gv8338), 15Nov.(gv8348), 25Nov.(gv8358)
2019 Jan. 15Jan.(gv9015), 25Jan.(gv9025)
2019 Feb. 04 Feb.(gv9035), 14Feb.(gv9045)

2. Frequency Link

  1. Link Summary
    Following is Frequency link over multiple H-Masers through VLBI or IPPP
  2. Plot of Link Data Ver.5 (Updated on 21 Aug 2019)
    Sr/Yb link VLBI-IPPP diff.
    Sr/Yb-link VLBI(VMF3)-IPPP
    Ver.4 (Wrong Version:Epoch was not always unified. )
    Sr/Yb link VLBI-IPPP diff.
    Sr/Yb-link VLBI(VMF3)-IPPP

  3. Double Difference Between VLBI and IPPP in 2018
    IPPP,VLBI IPPP,VLBI
    O4 Nov. 14 Nov.24 Nov. 04 Dec.15 Dec.25 Dec. 15 Jan.25 Jan.14 Feb.
    VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP VLBI,IPPP
    VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP VLBI-IPPP
  4. Freq. Link by Each Single Experiment
    LINK 14-15 Oct.2018 4-5 Nov.2018 14-15 Nov.2018 24-25 Nov.2018 5-6 Dec.2018 15-16 Dec.2018 25-26 Dec.2018 15-16 Jan.2019 25-26 Jan.2019 14-15 Feb.2019
    VLBI HM3(NICT)-HM(INAF) 4.147(19)e-13 s/s
    Kog-Med Oct14 Time Diff data ,
    VLBI Solution(file)
    4.0248(91)e-13 s/s
    Kog-Med Nov04 Time Diff data ,
    VLBI Solution(file)
    3.9830(42)e-13s/s
    Kog-Med Nov14 Time Diff data ,
    VLBI Solution(file)
    3.925(15)e-13 s/s
    Kog-Med Nov24 Time Diff data ,
    VLBI Solution(file)
    3.8590(33)e-13s/s
    Kog-Med Dec04 Time Diff data ,
    VLBI Solution(file)
    3.8116(38)e-13s/s
    Kog-Med Dec15 Time Diff data ,
    VLBI Solution(file)
    3.7861(74)e-13 s/s
    Kog-Med Dec25 Time Diff data ,
    VLBI Solution(file)
    7.1716(74)e-13 s/s
    Kog-Med Jan15 Time Diff data ,
    VLBI Solution(file)
    7.114(13)e-13 s/s
    Kog-Med Jan25 Time Diff data ,
    VLBI Solution(file)
    6.990(13)e-13 s/s
    Kog-Med Feb14 Time Diff data ,
    VLBI Solution(file)
    2018.287.15:39:20 -- 288.20:32:10
    MJD0:58406.2540
    2018.308.00:40:13 -- 309.07:17:40
    MJD0:58426.6659
    2018.318.08:00:30 -- 319.12:58:20
    MJD0:58436.9371
    2018.328.00:00:13 -- 329.18:26:22
    MJD0:58446.8842
    2018.338.19:00:30 -- 339.23:58:20
    MJD0: 58457.3954
    2018.349.00:30:12 -- 350.05:58:10
    MJD0: 58467.6348
    2018.359.06:00:30 -- 360.10:57:30
    MJD0:58477.8535
    2019.015.06:00:30 -- 016.10:57:40
    MJD0:58498.8535
    2019.025.03:11:10 -- 026.07:24:40
    MJD0:58508.7208
    2019.045.03:00:22 -- 046.14:47:20
    MJD0:58528.8707
    IPPP HM3(NICT)-HM(INAF) -- 4.0297(23)e-13 [s/s] IPPP Link 3.9911(34)e-13 [s/s] IPPP Link 3.9388(9)e-13 [s/s] IPPP Link 3.8729(15)e-13 [s/s] IPPP Link 3.8145(14)e-13 [s/s] IPPP Link 3.7789(16)e-13 [s/s] IPPP Link 7.17654(17)e-13 [s/s] IPPP Link 7.1060(2)e-13 [s/s] IPPP Link 7.01511(17)e-13 [s/s] IPPP Link
    -- MJD0:58426.6659 -0.70 +0.70 MJD0:58436.9371 -0.65 +0.65 MJD0:58446.8842 -1.0 +1.0 MJD0:58457.3954 -0.65 +0.65 MJD0:58467.6348 -0.65 +0.65 MJD0:58477.8535 -0.65 +0.65 MJD0:58498.8535 -0.65 +0.65 MJD0:58508.7208 -0.65 +0.65 MJD0:58528.8707 -0.80 +0.80
    DMTD HM3(NICT)-HM15(NICT) -- 12.7739(9)e-13 s/s
    HM3-HM15
    12.8804(8)e-13 s/s
    HM3-HM15
    12.9336(6)e-13 s/s
    HM3-HM15
    13.0840(9)e-13 s/s
    HM3-HM15
    13.1588(8)e-13 s/s
    HM3-HM15
    1hour interval data: 13.344(1)e-13 s/s
    HM3-HM15 HM3-HM15
    1sec interval data
    DMTD2:13.33(1)e-13 s/s
    DMTD3:13.344(5)e-13 s/s
    DMTD4:13.344(7)e-13 s/s
    DMTD HM3-HM15 1sec data.
    -- MJD0:58457.3954 -1.0 +1.0 MJD0:58467.6348 -1.0 +1.0 MJD0:58477.8535 -1.0 +1.0 MJD0:58498.8535 -1.0 +1.0 MJD0:58508.7208 -1.0 +1.0 MJD0:58528.8707 -1.0 +1.0
    Sr-HM15,HM3(NICT) -5.0087(23) e-13 s/s
    Sr-HM15
    -5.0109(28) e-13 s/s
    Sr-HM15
    -5.0151(6) e-13 s/s
    Sr-HM15
    -4.994(6) e-13 s/s
    Sr-HM15
    7.7732(5) e-13 s/s
    Sr-HM15
    7.880(1) e-13 s/s
    Sr-HM15
    7.9502(15) e-13 s/s
    Sr-HM15
    8.118(2) e-13 s/s
    Sr-HM15
    8.209(3) e-13 s/s
    Sr-HM15
    8.3937(13)e-13 s/s
    Sr-HM15
    MJD0:58406.2540 -20.0 +20.0 MJD0:58426.6659 -6.0 +3.0 MJD0:58436.9371 -9.0 +0.0 MJD0:58446.8842 -11.0 -1.0 MJD0:58457.3954 -5.0 +5.0 MJD0:58467.6348 14.0 +30.0 MJD0:58477.8535 -15.0 +15.0 MJD0:58498.8535 -7. 0 +8.0 MJD0:58508.7208 -4.0 +7.0 MJD0:58528.8707 -0.7 +0.6
    Fiber Link HM(INAF)-HM3(INRiM) 9.759(5)e-13 s/s
    HM(INAF)-HM(INRiM)
    9.940(2)e-13 s/s
    HM(INAF)-HM(INRiM)
    10.028(3)e-13 s/s
    HM(INAF)-HM(INRiM)
    10.1135(44)e-13 s/s
    HM(INAF)-HM(INRiM)
    10.173(8)e-13 s/s
    HM(INAF)-HM(INRiM)
    10.264(3)e-13 s/s
    HM(INAF)-HM(INRiM)
    10.369(3)e-13 s/s
    HM(INAF)-HM(INRiM)
    7.050(6)e-13 s/s
    HM(INAF)-HM(INRiM)
    7.131(3)e-13 s/s
    HM(INAF)-HM(INRiM)
    7.2412(45)e-13 s/s
    HM(INAF)-HM(INRiM)
    MJD0:58406.2540 -1 +10 MJD0:58426.6659 -10 +10 MJD0:58436.9371 -10 +10 MJD0:58446.8842 -10 +6 MJD0:58457.3954 -6 +4 MJD0:58467.6348 -10 +7 MJD0:58477.8535 -11 +15 MJD0:58498.8535 -1 +10 MJD0:58508.7208 -10 +10 MJD0:58528.8707 -30 +8
    HM3(INRiM)-Yb -8.8832(11)e-13 s/s
    Hm-Yb
    -8.9644(14)e-13 s/s
    Hm-Yb
    -8.9935(10)e-13 s/s
    Hm-Yb
    -9.0264(11)e-13 s/s
    Hm-Yb
    -9.042(4)e-13 s/s
    Hm-Yb
    -9.0925(21)e-13 s/s
    Hm-Yb
    -9.1348(12)e-13 s/s(1st Poly)
    -9.1596(40)e-13 s/s(2nd Poly)
    Hm-Yb
    -9.2544(10)e-13 s/s
    Hm-Yb
    -9.2759(6)e-13 s/s
    Hm-Yb
    -9.2958(15)e-13 s/s
    Yb-HM3(INRiM)
    MJD0:58406.2540 -10 +10 MJD0:58426.6659 -10 +10 MJD0:58436.9371 -20 +30 MJD0:58446.8842 -20 +20 MJD0:58457.3954 -0 +10 MJD0:58467.6348 -10 +0 MJD0:58477.8540 -20 +20 MJD0:58498.8535 -10 +20 MJD0:58508.7208 -20 +20 MJD0:58528.8707 -1 +1
    Summary
    [(Sr/Yb) - 1]
    VLBI:+4.2(6.8)e-16 VLBI:-7.7(4.5)e-16,
    IPPP:-5.6(4.4)e-16
    VLBI:1.5(4.0)e-16,
    IPPP:10.5(4.7)e-16
    VLBI:14.8(8.0)e-16,
    IPPP:31.9(7.6)e-16
    VLBI:-6.2(9.3)e-16,
    IPPP:3.2(9.1)e-16
    VLBI:-14.1(4.2)e-16,
    IPPP:-14.4(4.1)e-16
    VLBI:10.4(5.6)e-16,
    IPPP:4.9(5.5)e-16
    VLBI:5.1(6.6)e-16,
    IPPP:6.1(9.0)e-16
    VLBI:16.3(4.8)e-16,
    IPPP:11.3(3.9)e-16
    VLBI:+2.1 (5.4)e-16,
    IPPP:10.3(5.3)e-16