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Optical sensor
Definition of an optical sensor
An optical sensor is a device used to detect light or changes in light in the environment and convert them into electronic signals for measurement and analysis. These sensors can measure various aspects of light, including its intensity, wavelength, phase, polarization, or color.
Optical sensors are often used in applications where precise, non-invasive measurement of light phenomena is required. They are crucial in a range of fields such as astronomy, meteorology, communication systems, and environmental monitoring.
The functioning of optical sensors involves principles from optics and photonics, and they are typically classified based on whether they measure the presence, absence, or changes in light, or whether they convert optical signals into electrical signals for interpretation. In the context of space and satellite operations, optical sensors play a key role in tracking and monitoring satellites and other orbital objects from ground-based systems.
Optical sensors in space surveillance and tracking (SSA)
Optical sensors underpin many space surveillance and tracking (SSA) workflows by enabling ground based observation of satellites and debris using reflected or emitted light. They support orbit determination, object identification and change detection, helping operators assess conjunction risk, verify satellite behavior, and maintain a current space picture.
Because optical observations can be sensitive to illumination and weather constraints, operations often rely on combining optical data with other sensor types to reduce uncertainty and keep monitoring continuous.
Look Up’s SYNAPSE and radar complement for operational decisions
Look Up uses SYNAPSE to fuse optical observations from external sources with other tracking data, catalogue objects, and deliver alerts and risk analytics for satellite operations.
When optical coverage is limited, Look Up complements it with high reactivity detections and tracks from its SORASYS ground based radar approach to protect fleets and support timely decisions.
SYNAPSE also supports collision avoidance workflows, including tailored maneuver recommendations and collision avoidance predictions with a 99.9% accuracy rate.
We deliver space situational awareness (SSA) and space domain awareness (SDA) solutions that help secure active satellites and ensure safe operations in the ever-growing expanse of space.