Draft:Milani

Milani is a CubeSat developed by Tyvak International together with a consortium of partner companies, universities, and research institutes from Italy, Finland, and the Czech Republic for the European Space Agency, to examine 65803 Didymos asteroid following Double Asteroid Redirection Test (DART) impact. Together with Juventas, it will be carried by the HERA mothercraft from the Low Earth Orbit to the Didymos binary system of asteroids, where it will be deployed to start its mission.

Milani was appropriately named after the Italian mathematician and astronomer Andrea Milani, a leading figure in Europe’s space science community, and a pioneer of asteroid risk analysis.​

Spacecraft
The Milani CubeSat is a 6UXL spacecraft of 13 x 24.6 x 36.6 cm, with a weight of 12 kg. Its energy is provided by deployable two solar arrays. It is 3-axis stabilized and the attitude is maintained by 3 reaction wheels, 4 sun sensors, one star tracker, one inertial measurement unit and two cold gas propulsion systems.





The development of the spacecraft has been carried out by a consortium of partner companies, universities, and research institutes from Europe:
 * Tyvak International (Italy)
 * Politecnico di Torino (Italy)
 * Politecnico di Milano (Italy)
 * Centro Italiano Ricerche Aerospaziali - CIRA (Italy)
 * Istituto Nazionale di Astrofisica - INAF-IAPS (Italy)
 * Aerospace Logistics Technology Engineering Company - ALTEC (Italy)
 * VTT Technical Research Centre of Finland (Finland)
 * University of Helsinki (Finland)
 * Institute of Geology of the Czech Academy of Sciences (Czech Republic)
 * Reaktor Space Lab (Finland)
 * Brno University of Technology (Czech Republic)
 * HULD (Czech Republic)

Propulsion
Milani is equipped with two IANUS cold gas propulsion systems, developed by T4i in collaboration with Tyvak International. They provide up to six degrees of freedom, can be used both for attitude control and orbit manuevers.

Autonomous Navigation
The spacecraft is also equipped with a navigation camera developed by the collabroation between Tyvak International and the Deep-space Astrodynamics Research & Technology (DART) Group of the Politecnico di Milano, that will help Milani to autonomously navigate and perform scientific operations. A LIDAR is also present on the satellite, and considering the relatively small range, it is complementary to the primary NavCam.

Inter-Satellite Link (ISL)
Once released, communication between ground and Milani would be achieved through an Inter-Satellite Link between Milani and Hera, using the mothercraft as data relay.

Hyperspectral imager (ASPECT)
The primary payload on Milani is the miniaturized hyperspectral imager (ASPECT) developed by VTT Technical Research Centre of Finland.

Volatile In-Situ Thermogravimetre Analyser (VISTA)
The secondary payload on Milani is the Volatitle In-Situ Thermogravimetre Analyser (VISTA) developed by INAF.