Hodoyoshi smallsats transmit imagery

Hodoyoshi smallsats transmit imagery

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Japan: Hodoyoshi-3 and 4, the two Japanese microsatellites developed by the University of Tokyo, have begun transmitting images of earth from space.

Hodoyoshi-3 and 4, the two Japanese microsatellites launched by the University of Tokyo, have begun transmitting images of earth from space

(1) Hodoyoshi-3 (left) and Hodoyoshi-4 (right), (2) First wide-angle camera image taken by Hodoyoshi-4, (3) 200m resolution images taken by Hodoyoshi-3 (Northernmost part of Australia).

Developed by the University under the FIRST program of Cabinet Office of Japan, the two microsatellites were launched from the Dnepr Launch Vehicle in Russia on 20 June.

Hodoyoshi-3 and 4 are proof-of-concept in innovative satellites each developed a budget of less three million US dollars and development time of less than two years.

Researchers believe that low cost small satellites will enable frequent earth observation using a large number of satellites or the concept of the “personal satellite.”

Hodoyoshi-3 has 40 m and 200 m GSD (ground sample distance) cameras and Hodoyoshi-4 has a 6m GSD camera to capture Earth remote sensing images. Both satellites have “Store & Forward” communication systems to receive various sensor data on ground by RF signal as well as “Rental Space” to accommodate user-specified objects in several 10 cm cubic spaces in each satellite.

Source: University of Tokyo