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Table 4 Minimum and maximum simulated EOP repeatability over all variable antenna locations, as well as their range and ratio in \(\upmu\)as and \(\upmu\)s, respectively

From: Optimal antenna locations of the VLBI Global Observing System for the estimation of Earth orientation parameters

 

Min

Max

Range

Ratio

Ref

6 + 1

XPO

31

76

45

2.4

68

YPO

27

104

76

3.8

90

dUT1

0.9

3.3

2.4

3.7

2.3

NUT

18

41

23

2.2

40

12 + 1

XPO

21

32

12

1.6

31

YPO

17

27

10

1.6

26

dUT1

0.58

0.98

0.40

1.7

0.76

NUT

11

16

4

1.4

15

18 + 1

XPO

17

25

7

1.4

24

YPO

14

20

6

1.5

20

dUT1

0.54

0.84

0.30

1.6

0.75

NUT

9

11

3

1.3

11

  1. Column “ref” lists the EOP repeatability value simulated using the fixed networks without any additional variable antenna