In theory. The main problem is that the surface currents are not known exactly for the early June time period, so you can only take the current currents and make guesses about the previous currents. The guesses will not be 100% accurate, because the currents change.
This excercise was carried out here a week or so ago using the marked location of the bodies that were located, as these were marked on the Braszilian charts, and the other items were not uniquely marked. Since then at least one chart shows the found location of the VS, and it would be interesting to correlate that to the previous work.
As best I recall the maps, the estimated zero point was about 1 degree (60nm) almost due south of the June 6 cluster of recovery items. That would be near the bottom and a little left of center of the search area shown in the BEA report, so we can assume that the searchers know something about the currents that hasn't been made public. Note this is also about 30nm back from the 0210 position report, indicating (if the true location) that AF447 covered at least 30nm before hitting the water, rather than going "straight down".
Last edited by WhyIsThereAir; 5th Jul 2009 at 07:53.