לוגו דוכיפת 2

Hoopoe - Duchifat 2

Duchifat 2 is one of the world's first CubeSats built by high-school students, second in Israel. It was built by students from the Science Center, in collaboration with high schools from the periphery. The satellite is part the European satellite project QB50. Hoopoe is a 2U CubeSat (20X10X10cm), twice as large as its predecessor Duchifat-1.

As part of the QB-50 project a constellation of nano satellites built by universities and research institutes all over the world, including Hoopoe, will be launched. Each satellite was given one of three tasks, all of which study the lower atmosphere (at an altitude of 300km). This layer is largely unexplored because it's too high for research balloons to study, but too low for larger satellites to analyze since they are expensive and don’t have a long life expectancy at the desired altitude.

Hoopoe has several objectives:

An educational purpose

like Duchifat-1, it has an educational goal.

Scientific purpose

The task selected for Hoopoe is to measure the plasma density in the lower layer of the atmosphere. The satellite will start in an orbit at a height of roughly 380 kilometers and will gradually lose altitude until, around nine months after launch, the satellite will burn up in the atmosphere. Hoopoe is required to maintain a constant direction relative to it's movement, so that the sensor ( a Multi-Needle Langmuir Probe) operates effectively - which requires a guidance control system. The problem is that satellites this size aren't equipped with motors to control the satellite in the correct way, so the satellite uses the earth's magentic field to do so, and constructing a system for guiding the satellite in this manner requires complex physical calculations and many hours of work. The satellite is scheduled for launch in March 2017, together with the other satellites of the QB50 project. In December 2015, the work began on the satellite components, concluding satellite assembly and software imprinted in the OBC (on board computer).

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