Our next update (Friday AM) will include the latest forecasts for times and distances related to Rosetta flyby. -- DGS
A query was posted here in the Rosetta blog yesterday by Se7en, who noted that the Rosetta flyby media event programme for 10 July, here at ESOC, cites the closest approach time as 18:10 CEST (16:10 UTC). Se7en pointed out that we had earlier posted that the estimated closest approach time would be 15:44:55 UTC (=17:44:55 CEST).
The source of the difference lies in the fact that we first posted the flyby closest approach time in 'spacecraft event time' - which is to say, the time when the event will happen at Rosetta. The time in the media event programme is cited in Earth event time - which is to say, the time when the event can be detected on Earth.
So, why the difference? (Details after the jump...) -- Daniel
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