Interface tour

The five areas

Area	Where	What it does
Top bar	Top	Simulation / Analysis switch under the name (Analysis workspace, Operations plan), UTC date and time, time-lapse (×60, ×600, ×3600; space bar), 24-hour timeline, link to the configuration, language (FR / EN), licence, Sun and Moon
Control panel	Left	Five tabs that define the scene: Geometry, Station, Satellite, Materials, Sensor
3D view	Centre	The object lit by the Sun, seen from the station, from the Sun, or freely; the image seen by the sensor; the orbital context
Curves	Bottom	Phase curve, 24-hour curve, rotation, measurement — click to move the simulation, pin a reference curve, export
Results	Right	Magnitude, uncertainty, verdict and SNR, flux breakdown, geometry readouts, magnitude scale

The timeline

The 24-hour strip shows the colour of the sky at the station. Periods when the station is in daylight are hatched. The thin band below gives the state at each instant: green observable, violet in the Earth’s shadow, pink too low. Drag it to move in time.

The control panel tabs

Geometry

How the line of sight is set: signed phase angle and range, azimuth and elevation, a real orbit (TLE or CCSDS OEM), or a loaded measurement. Also the physical model switches (Earth’s shadow, earthshine, extinction, refraction) and the flash prediction. See Geometry modes.

Station

A ground site (built-in sites or coordinates), its extinction and night sky — or an observer in orbit defined by a TLE. See Observer and Atmosphere and sky.

Satellite

The model (catalogue, DISCOS shape, imported CAD), the attitude law, the rotation, plus the validation and synthetic-dataset tools. See Models.

Materials

Albedo, specular reflectance and roughness of each material family, measured BRDF tables, and the Monte-Carlo uncertainty settings. See Materials.

Sensor

Predefined telescope and camera systems, binning, exposure, seeing, saturation, observing constraints and sky background. See Sensor.

Help bubbles

Every important parameter has a help bubble (ⓘ). Hover it, focus it with the keyboard, or tap it on a touch screen.