A video by ESA regarding the ATV.
Date- 27 March 08 Source- http://www.esa.int/SPECIALS/ESApod/index.html or http://www.esa.int/esa-mmg/mmghome.pl
'The Jules Verne ATV mission control teams have started a tight schedule of in-flight testing.
On 14 March, ATV successfully demonstrated the crucial Collision Avoidance Manoeuvre, or CAM, in which an automated system successfully took over control of the vessel and moved to a safe location. Now, two more 'Demonstration Days' are scheduled prior to the actual docking. The first, 29 March, will demonstrate that the ATV can automatically calculate its position and manoeuvre with respect to the Station using relative GPS navigation; it will also perform an 'Escape' manoeuvre from the S2 position, some 3500 m behind the ISS. The data from this rehearsal will be analysed by ATV mission managers and NASA and Russian partners before proceeding to a second Demonstration Day, on 31 March. This second dry-run will test close proximity manoeuvring and control, including contingency manoeuvres for both the ATV control centre and the crew aboard the ISS. The ATV will approach first to within 20 metres of the station, retreat, then approach even nearer, to a point only 12 metres from the docking port on the ISS Russian Zvezda module, before again backing off to a safe 100-metre distance. Demo Day 2 will provide ultimate proof that Europe's resupply vessel is absolutely ready for final rendezvous and docking.'
Technically it didnt have to wait for Endeavour to leave. Endeavour and all shuttles dock with the bottom half of the station. Zevzeda is the topmost point of the ISS and Endeavour would be safely below it. Still from an ESA/NASA/Russian point of view I can see why you'd wait for End to leave
Falkirion 3 years ago
very interesting. humans are surely now on the way to really explore and live in space. yay!
homousios 3 years ago 2
:) (blushing somehow) just learnt a new word, didnt know in scientific term, the word 'rehearsals' is used this way. Thanks.
KyotoMelody 3 years ago