All, Finally the separation between UKube 1 and AISSat 2 has increased to about 60 km. And with the telemetry beacon transmitting a continuous signal, it now became possible to identify UKube 1 using doppler measurements. It appears that UKube 1 is object 40074, 2014-037F. So the JSpOC's initial guess appears to be correct. 73, Nico PA0DLO