Look angles

Azimuth, elevation and range from a ground site to a satellite state.

SIDUS educational calculator. Category satellite. Tags: geo, operations, satellite. Pure SI. Not flight software.

Formula

ρ = r_sat − r_site · az, el, |ρ|

Ground-station pointing

Primary sources

satellite.js (MIT License): Browser SGP4/SDP4 propagation library used by SIDUS satellite tools.
Fundamentals of Astrodynamics and Applications (David A. Vallado): Standard reference for two-body, Lambert, maneuvers, and J2. Equations implemented independently in SIDUS.
CelesTrak (CelesTrak): TLE sets, NORAD element documentation, and Vallado software companion hosting.

How do AI agents use this tool?

Read /llms.txt or call https://sidus.tools/api/mcp. Open the interactive page for live SI inputs.

Open interactive tool · SIDUS