VLBI Frequency Comparison in 2018 Ver.2

1. Experiments List

2. Frequency Link

1. Link Summary
   
   • Sr/Yb-1 = 1.9(2.7) [1.e-16 ] over multiple H-Masers through VLBI
     Sr/Yb-1 = 5.6(5.8) [1.e-16 ] over multiple H-Masers through IPPP
     (Uncertainty is computed from WRMS/sqrt(n). )
   • [pdf]
   • VLBI results and evaluation of uncertainty [xlsx] ,
   • Total Link data [xlsx]
   
   
2. Plot of Link Data (Updated on 24 June 2019)

   	VLBI(VMF3 Dry+Wet+Grad) and IPPP	VLBI(VMF1 Dry+Wet kai2=1) and IPPP	VLBI(VMF1 Dry+Wet natural weight) and IPPP
   Sr/Yb link
   VLBI-IPPP diff.

   
   
3. Double Difference Between VLBI and IPPP in 2018
   

   	O4 Nov.	14 Nov.	24 Nov.	04 Dec.	15 Dec.	25 Dec.
   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 Time Diff data , VLBI Solution(file)	4.0248(91)e-13 s/s Time Diff data , VLBI Solution(file)	3.9830(42)e-13s/s Time Diff data , VLBI Solution(file)	3.925(15)e-13 s/s Time Diff data , VLBI Solution(file)	3.8590(33)e-13s/s Time Diff data , VLBI Solution(file)	3.8116(38)e-13s/s Time Diff data , VLBI Solution(file)	3.7861(74)e-13 s/s Time Diff data , VLBI Solution(file)	7.1716(74)e-13 s/s Time Diff data , VLBI Solution(file)	7.114(13)e-13 s/s Time Diff data , VLBI Solution(file)	6.990(13)e-13 s/s Time Diff data , VLBI Solution(file)
   IPPP HM3(NICT)-HM(INAF)	--			4.0297(23)e-13 [s/s]	3.9916(32)e-13 [s/s]	3.9358(15)e-13 [s/s]	3.872(2)e-13 [s/s]	3.814(2)e-13 [s/s]	3.7786(17)e-13 [s/s]	--
   DMTD HM3(NICT)-HM15(NICT)					12.7730(9)e-13 s/s	12.8805(8)e-13 s/s	12.9336(6)e-13 s/s	13.0840(9)e-13 s/s	13.15879(8)e-13 s/s	1hour interval data: 13.344(1)e-13 s/s 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
   Sr-HM15,HM3(NICT)	-5.0087(6) e-13 s/s	-5.0109(12) e-13 s/s	-5.0151(6) e-13 s/s	-4.9946(6) e-13 s/s	7.7733(6) e-13 s/s	7.880(7) e-13 s/s	7.9501(6) e-13 s/s	8.1181(6) e-13 s/s	8.2092(6) e-13 s/s	8.3937(6)e-13 s/s
   Fiber Link HM(INAF)-HM3(INRiM)	9.754(4)e-13 s/s	9.940(2)e-13 s/s	10.028(3)e-13 s/s	10.1117(43)e-13 s/s	10.173(8)e-13 s/s	10.264(3)e-13 s/s	10.369(3)e-13 s/s	7.050(6)e-13 s/s	7.1311(3)e-13 s/s	7.251(6)e-13 s/s 7.2412(45)e-13 s/s
   HM3(INRiM)-Yb	-8.8754(13)e-13 s/s	-8.9643(14)e-13 s/s	-8.9935(10)e-13 s/s	-9.025(1)e-13 s/s	-9.042(4)e-13 s/s	-9.0923(21)e-13 s/s	-9.1348(12)e-13 s/s	-9.254(1)e-13 s/s	-9.2759(6)e-13 s/s	-9.2958(15)e-13 s/s
   Summary [(Sr/Yb) - 1]	VLBI-link:-24(13)e-16	VLBI-link:-21(12)e-16,IPPP-link:-5(3.6)e-16	VLBI-link:3(12)e-16, IPPP-link:11(4.5)e-16	VLBI-link:25(27)e-16, IPPP-link:28(5)e-16	VLBI-link:41(23)e-16, IPPP-link:3.4(9)e-16	VLBI-link:-22(18)e-16, IPPP-link:-14.3(8)e-16	VLBI-link:12.8(8)e-16, IPPP-link:4.5(5)e-16	8.1(8.6)e-16	0.9(5.8)e-16	-9.1(7) e-16 Err -14.8 (8.5)e-16