TRACKER LUNAR LAB MARS LAB SOLAR SYSTEM STATISTICS TIMELINE PASSES DESIGNER GS PLANNER IMAGERY ARTICLES ARTEMIS II DEVELOPERS ABOUT CONTACT

ORBITSMITH

Free browser-based space toolkit for journeying through the Solar System, tracking satellites, exploring the Moon and Mars, analyzing orbital trends, and planning mission concepts.

FOUR WAYS TO START

Choose what you want to do

OrbitSmith is organized by purpose, so you can move from a question to the right set of tools without scanning every page.

01ORBIT

Observe Earth Orbit

See what is in orbit now, understand environmental trends, and find visible passes.

  • Tracker
  • Statistics
  • Passes
VIEW ORBIT
02DESIGN

Shape Mission Concepts

Organize an early mission idea and examine possible ground-station contact windows.

  • Mission Designer
  • GS Planner
VIEW DESIGN
03LABS

Learn by Operating

Explore planetary surface operations through interactive educational demonstrations.

  • Lunar Lab
  • Mars Lab
  • Ceres Lab
  • Vesta Lab
  • Mercury Lab
VIEW LABS
04EXPLORE

Build Context Across Space

Travel across scale and time through the Solar System, orbital history, imagery, and a mission archive.

  • Solar System
  • Timeline
  • Imagery
  • Artemis II
VIEW EXPLORE
NEW · FEATURED
Journey Through the Solar System
From the Sun to Pluto — move through distance and time across 12 worlds.
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DAILY
3D Orbital Tracker
3D visualization of 34,000+ objects in orbit, refreshed daily from the fused Space-Track/CelesTrak catalog. Satellites, rocket bodies, debris. Educational collision risk estimator included.
34,000+ objects Collision estimator Space-Track
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STORY
The Growing Crowd in Orbit
From 1 object to 44,000 — scroll through 60 years of orbital debris history
1957–today 44,000 objects Scroll story
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NEW
Lunar Lab
Explore NASA LOLA/SVS-derived lunar terrain with a browser-based rover operations demo across Apollo sites, craters, maria, and valleys.
20 lunar sites Rover demo NASA-derived
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NEW
Mars Lab
Explore NASA/USGS MOLA-derived Mars terrain with a rover operations demo across landing regions, craters, volcanoes, canyons, and basins.
20 Mars sites Rover demo MOLA-derived
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NEW
Ceres Lab
Explore Dawn-derived global Ceres terrain with a fictional educational rover, continuous regional travel, and 20 officially named features.
20 named features Rover demo Dawn-derived
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Space Environment Statistics
60+ years of orbital trends — object growth, launch activity, constellation expansion, fragmentation events. Interactive Chart.js dashboards with ESA and McDowell data.
60+ years Chart.js ESA data
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Visible Pass Prediction
Predict when satellites are visible from your location. Sky charts with star references, ground tracks, brightness estimates — find the ISS, Tiangong, Starlink, and more tonight.
Sky charts ISS & Starlink Your location
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Mission Designer
Interactive satellite mission screening. Configure spacecraft, estimate simplified budgets across 5 domains, compare candidate launch vehicles, and review a design summary.
7 missions 5 budgets Launch matching
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GS Planner
Compare geometric satellite visibility across multiple selected ground stations. Commercial coordinates are labelled approximate; communications and booking are not evaluated.
67 candidates Shared SGP4 Geometry only
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Satellite Imagery
Unified viewer for 21 layers from NASA, ESA, and ESRI. Daily Earth observation, active fire detection, vegetation health, sea temperature, nighttime lights — one interface.
NASA GIBS ESA Sentinel ESRI/Maxar
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ARCHIVE
Artemis II
Artemis II Mission Tracker
Relive the first crewed lunar flyby in 54 years. Telemetry replay from NASA OEM data: distance from Earth, distance to Moon, velocity, mission phase, and signal delay.
Articles Developers Data & Methods About Contact
More tools in development

Free browser-based space tools with cited sources and clearly stated assumptions and limitations.

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