Japanese Earth Resources Satellite 1 (JERS-1) was a satellite launched in 1992 by the Japan Aerospace Exploration Agency (at that time also known as "NASDA", now "JAXA"). It carried three instruments:
- An L-band (HH polarization) synthetic aperture radar (SAR);
- A nadir-pointing optical camera (OPS);
- A side-looking optical camera (AVNIR).
The satellite operated until 1998 and re-entered the Earth's atmosphere in 2001.
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