4:00 PM - 4:15 PM
[PCG18-15] Development of Collimated Light Source for Telephoto Camera TENGOO with MMX
Keywords:Martian Moons, Telephoto, Collimated Light, Spacecraft, Performance, MTF
There are two moons on Mars, Phobos and Deimos. It is still unclear whether these two moons are the result of an asteroid being captured by the gravitational pull of Mars, or whether they were formed by the re-accumulation of debris from the impact of a huge celestial body on Mars. The Martian Moons eXploration (MMX) is expected to solve this mystery and provide new insights into the water transport and planet formation processes. In addition to the sample return that will bring back material from Phobos, the MMX will also make spectroscopic observations using cameras.
A telephoto camera TENGOO mounted on the spacecraft will confirm the safety of the landing site of the spacecraft at an altitude of 20 km~100 km. The performance of TENGOO is evaluated by calculating the MTF from the Point Spread Function (PSF) or Line Spread Function (LSF) at the imaging plane when collimated light is incident. Therefore, it is important to create a highly accurate collimated light source to evaluate the performance of TENGOO. The collimated light source in this experiment was created using a refracting telescope with a higher imaging performance than TENGOO. The evaluation of the created collimated light source is done by calculating the Modulation Transfer Function (MTF) from the PSF or LSF obtained experimentally. In this presentation, I report on the experimental method, the MTFs obtained in the experiments, and the MTF values estimated from them at the TENGOO imaging plane.
A telephoto camera TENGOO mounted on the spacecraft will confirm the safety of the landing site of the spacecraft at an altitude of 20 km~100 km. The performance of TENGOO is evaluated by calculating the MTF from the Point Spread Function (PSF) or Line Spread Function (LSF) at the imaging plane when collimated light is incident. Therefore, it is important to create a highly accurate collimated light source to evaluate the performance of TENGOO. The collimated light source in this experiment was created using a refracting telescope with a higher imaging performance than TENGOO. The evaluation of the created collimated light source is done by calculating the Modulation Transfer Function (MTF) from the PSF or LSF obtained experimentally. In this presentation, I report on the experimental method, the MTFs obtained in the experiments, and the MTF values estimated from them at the TENGOO imaging plane.