The Interactive Satellite for Art and Design Experimental Research or INVADER, also known as Cubesat Oscar 77 (CO-77) and Artsat-1 is an artificial satellite for artistic experiments in space.

It has a size of 100x100x100mm (without antennas) and built around a standard 1U cubesat bus.

The primary satellite payload is an FM voice transmitter.

Also, it includes low-resolution CMOS camera and thermochromic panels for artistic purposes.

It was launched into orbit by a H-IIA launch vehicle on 27 February 2014 as a sub-payload of GPM Core satellite.