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Table A.1

Periods of time in the years 20072014 when the angular separation between STEREO-A and STEREO-B was less than 2.5°.

Date Number of episodes Io-C Io-D non-Io

01 Jul.–18 Sep., 2007 41 16 15 10
17 Mar.–21 Apr., 2008 17 5 6 6
22 Sep.–15 Oct., 2008 4 2 2 0
30 Apr.–17 May, 2009 12 4 2 6
08 Nov.–23 Nov., 2009 10 2 2 6
04 Jun.–18 Jun., 2010 4 2 1 1
24 Dec. 2010–06 Jan., 2011 4 0 1 3
07 Jul.–21 Jul., 2011 5 0 3 2
06 Feb.–20 Feb., 2012 9 2 4 3
08 Aug.–24 Aug., 2012 3 1 2 0
13 Mar.–02 Apr., 2013 4 2 2 0
08 Sep.–02 Oct., 2013 12 3 4 5
14 Apr.–25 May, 2014 14 4 4 6

Total 139 43 48 48

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