Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.



WNISAT 1R (Weather News Inc. Satellite 1R) is a microsatellite for north arctic routes and atmosphere monitoring. The project is started from the commercial objects between Weathernews and Axelspace. The object of the WNISAT-1R mission is monitoring of the Northern sea routes and of the CO2 content of the atmosphere.

The 40 kg satellites is an improved follow-up mission to WNISAT 1R. It is large and built on a 52 × 52 × 50 cm cube structure inherited from Hodoyoshi 1 and is three-axis-stabilized.

Equipped with blue, green and red optical cameras and a near-infrared camera, it will be able to take photos of the arctic ice several times every day. These images will be then used by Weathernews to predict the distribution of ice in the area and make the passage of commercial ships on those routes as safe as possible. Compared to its predecessor WNISAT-1, WNISAT-1Rs ground feature resolution is far higher, allowing for more reliable estimations of the ice distribution.

For measuring the CO2 content, the satellite emits laser beams at wavelengths of 1556 nm and 1570 nm. The lasers illuminate an area of about 10 km diameter. The reflected light is detected by the satellite.

Nation: Japan
Type / Application: Earth observation
Operator: Weather News Inc.
Contractors: AXELSPACE
Propulsion: None
Power: Solar cells, batteries
Lifetime: ?
Mass: 40 kg
Orbit: 586 km × 605 km, 97.61
Satellite COSPAR Date LS Launch Vehicle Remarks
WNISAT 1R 2017-042L 14.07.2017 Ba LC-31/6 Soyuz-2-1a Fregat with Kanopus-V-IK 1, Flying Laptop, NORSAT 1, NORSAT 2, TechnoSat, CICERO 1, 2, 3, Landmapper-BC 1, 2, MKA-N 1, 2, Flock-2k 1, ..., 48, Lemur-2 42, ..., 49, NanoACE, Mayak, Iskra-MAI-85, UTE-UESOR


Further WNISAT missions:

Cite this page: