Test bench for star sensor, and test methodThe invention relates to a test bench (1) for a stellar sensor, characterized in that it comprises: - a stellar sensor (2) comprising a protective baffle (3), - a collimator (7) mounted on one end of …DRIVE·Dec 17·1 min readFollowB64G1/361CENTRE NAT ETD SPATIALES [FR]
Method for calibrating alignment biases of an earth observation system using symmetrical photographsThe method involves comparing a reference image (R) of a scene with a secondary image (S) of the scene acquired by an imaging system, where the images consist of exposures of the scene acquired by the…DRIVE·Jul 10·2 min readFollowB64G1/1021CENTRE NAT ETD SPATIALES [FR]
Spacecraft provided with a device for estimating its velocity vector with respect to an inertial frame and corresponding estimation methodThe spacecraft (1) has an estimation device (5) whose gyrometer (9) measures an instantaneous rotational velocity vector of the spacecraft relative to an inertial reference frame, and spatially spaced…DRIVE·Jan 2·2 min readFollowB64G1/366CENTRE NAT ETD SPATIALES [FR]
Method for measuring the stability of a line of sight and corresponding star sensorThe method involves capturing a first set of star images (14) using a capturing head (6) of a star sensor (4) at frequency in a successive manner, where the sensor comprises another capturing head (5)…DRIVE·Sep 5·1 min readFollowB64G1/361CENTRE NAT ETD SPATIALES [FR]
Augmentation of a monopropellant propulsion systemThe system has an auxiliary tank (140) that is in direct contact with a main tank (10) through a pressurizing circuit (14) such that gas i.e. inert gas, in the auxiliary tank is continuously released …DRIVE·Jul 4·1 min readFollowB64G1/402CENTRE NAT ETD SPATIALES [FR]
System and method for feeding at least one rocket motorA fuel such as hydrazine is stored in a main tank (2) under nitrogen pressure (3,4). After filtering (10) the fuel is pumped (12) to booster motors (1) in parallel with supply from a small secondary t…DRIVE·Aug 31·1 min readFollowF02K9/44CENTRE NAT ETD SPATIALES [FR]
