The 1U CubeSat was developed and constructed by students from Department of Electronic Systems at Aalborg University Denmark, as a testbed for a pair of 161 MHz band AIS receivers concentrating on the area around Greenland in cooperation with the Danish Maritime Authority. The IARU Amateur Radio coordinated frequency is 437.425 MHz and the radio link uses Viterbi and Reed Solomon encoding.
On the evening af June 5, when AAUSAT3 passes the AAU ground station, with an AOS at 19:02 (CEST), the satellite will have been around the earth 1434 times, equal to 64.5 million km with an average speed of around 7.5 km/s in an altitude of 800 km – and weights only 800 gram.
In that period the main payload – an in-house developed SDR AIS receiver – has received more than 700.000 AIS messages.
The team have released a report of the first 100 days which also explains the two crises that occurred. Read the report at http://www.space.aau.dk/aausat3/index.php?n=Main.First100Days
AAUSAT4 has been pre-qualified for an ESA Education CubeSat mission together with five other CubeSats http://www.space.aau.dk/aausat4/index.php?n=Main.AAUSAT4Home
Automatic Identification System (AIS) http://en.wikipedia.org/wiki/Automatic_Identification_System