RAMSES and EISCAT 3D, NOSTRA, ...
Background: D. Kastinen PhD Thesis
Rapid Apophis Mission for SEcurity and Safety
RAMSES
(and Ground support!)
Background: D. Kastinen PhD Thesis
RAMSES
What is it?
- A rapid satellite flyby mission targeting 99942 Apophis
- 99942 Apophis is a potentially hazardous asteroid
- Diameter about 370 metres
- On April 13, 2029 it passes between Earth and geosynchronous satellites
- Unique event!
RAMSES
Credit: ESA - Apophis orbit diverted by Earth's gravity
RAMSES
Credit: NASA/JPL-Caltech and NSF/AUI/GBO
RAMSES
Why care?
- Planetary defense! (yes that's a real thing!)
- Asteroid research -
- origins of solar system
- structure and composition of our environment
- fundamental physical processes and interactions
- ...
- ...
RAMSES
Cool background info
Credit: NASA/Johns Hopkins APL - DART
RAMSES
Cool background info
Credit: NASA/JPL
RAMSES
When asteroids hit the Earth?
Video: Chelyabinsk superbolide - Dash-cam footage February 15th 2013
RAMSES
(and Ground support!)
IRF involvement
- Deliver some components to satellite (SSPT - ask Stas)
- Enable and conduct EISCAT 3D observations of Apophis (STAR - me!)
- Use data to do science!
RAMSES
(and Ground support!)
Background: EISCAT
RAMSES
(and Ground support!)
- EISCAT_3D is new high-power large-aperture phased-array radar
- 233 MHz (1.3 m wavelength) - unique frequency
- I did a study that showed we should be able to observe asteroids
- Next steps is to develop the experiment and analysis, and estimate what data we can actually extract and what questions that can address
NOrdic Space Tracking RAdar
NOSTRA
Background: D. Kastinen PhD Thesis
NOSTRA
- Novel approach: phased-array and multi-static
- Capacity increases by a factor of 50-150 with a factor of ~3 in cost
- Fast enough to measure "all" objects within FoV
- Three transmitters $\mapsto$
system redundancy, higher accuracy, and mono-static operations for each site possible - Nordic location $\mapsto$ existing infrastructure, polar orbits, "science park"
- Contribute to both space traffic management, security, and research!
NOSTRA
NOSTRA
Project S2-SD-04:
NOrdic multi-STatic space debris Radar Architecture
Why care?
Credit: ESA
- 18 cm aluminium slab
- 1.7 g aluminium sphere
- Impact velocity 6.8 km/s
(orbit velocity ~8 km/s)