Dersom et fartøy er pliktig til å føre AIS, skal den være påslått, akkurat som for fly som har transponder. AIS sender ut signal om et fartøys posisjon. Det er ikke alltid at den er påslått fordi fartøyet har noe å skjule. Da kan det bli detektert av disse satellittene. Marinefartøyer har ofte systemet slått av. Eksempelvis KNM Helge Ingstad... (Red.)
Norway and the Netherlands share new twin satellites
Norway and the
Netherlands will soon be in space with the twin satellites Huygens and
Birkeland. The satellites have been developed and built through a collaboration
between FFI and two Dutch research institutes (NLR and TNO), financed by the
Dutch and Norwegian ministries of defence.
18.
OCTOBER 2022
The twin satellites form the most visible
part of the MilSpace project. They will be controlled from FFI at Kjeller. When
they are expected to be launched from Florida in December this year, they will
be able to detect, classify and geolocate radars of interest very precisely. It
includes navigation radars used on ships. Once the radars are operational,
MilSpace will be able to detect them from its polar orbit.
Close
cooperation
The satellites have been developed and built
in close collaboration between Dutch and Norwegian researchers. Hence the
names: Christiaan Huygens (born in 1629) was the Dutch mathematician and
physicist who discovered the moon Titan and the Orion Nebula. Kristian
Birkeland (1867) was the Norwegian physics professor who, among other things,
did groundbreaking research on the northern lights.
First time
This is the first time that Norway and the
Netherlands are launching a constellation of satellites that will fly together.
This means that you gain experience with formation flying through the project.
The two satellites will go into a polar "Low Earth Orbit (LEO)" with
an altitude of 550 km.
They will move in the same track plan. The
distance between them will vary throughout the mission. The antennas can cover
any point on the earth's surface. It can happen at least four times per day. At
higher latitudes, as many as 15 daily observations are possible. Solar panels
will provide the ten-kilogram nanosatellites with the necessary energy.
50/50 ownership
Norwegian and Dutch researchers have collaborated on the project
since 2017. The researchers have visited each other's institutes regularly. The
SMART MilSpace2 system is half-owned by the Dutch Ministry of Defense and FFI,
and the ownership agreement was signed last week at FFI.
Working on the satellites in the clean room at NanoAvionics. Photo: NanoAvionics.
Norwegian and Dutch researchers have
collaborated on the project since 2017. The researchers have visited each
other's institutes regularly. The SMART MilSpace2 system is half-owned by the
Dutch Ministry of Defense and FFI, and the ownership agreement was signed last
week at FFI.
Working on the
satellites in the clean room at NanoAvionics. Photo: NanoAvionics.
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