First YES2 GPS data from Samara State Aerospace University

Today we received the first results from SSAU GPS data, displaying the altitude as function of time. The yellow vertical lines indicate the important events Ejection, Start Second Stage, Cut Tether, from which can be seen that most of the First Stage and the full Second Stage are covered by the available data. Also post cut data is available to study the new orbit of Foton after tether release. The Hold Phase (just before Second Stage) is covered by a large number of data points, even if there are some holes in the data, it should be sufficient to filter out the exact motion and tether deployment behavior: by detailed analysis of the GPS data and determining deviations of the Foton orbit with respect to the expected motion of the center of mass, the tether dynamics can be derived.

In addition to this important mission result, DIMAC accelerometer data is expected early February.