|status reports||18-May-2013 20:23:48|
No. 203 - Mission Operations Update
07 October 2009
Report for Period 27 September to 3 October 2009
The Venus Express spacecraft and instruments performed nominally during this week. On DOY 271 the regular DDOR measurements were performed.
The DDOR measurement principle uses a technique to highly accurately determine the position of a transmitter in space and relies on observing the time delay between reception of the signal from the transmitter by two ground stations at different positions on Earth. In this case the Venus Express spacecraft is the transmitter and the two ground stations are New Norcia in western Australia and Cebreros in Avila, Spain.
The table below shows a chronology of the main activities:
At the end of the last Cebreros pass in the reporting period (DOY 276) Venus Express was orbiting Venus at 219.1 million km from the Earth. The one-way signal travel time was 730 seconds.
Last Update: 20 October 2009For further information please contact: SciTech.firstname.lastname@example.org
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