Predict satellite ground tracks and visibility.
The app computes satellite ground tracks and visibility for multiple ground stations. It plots satellite positions, ground tracks, Sun and Moon positions, and day/night regions on Earth.
Showing 421–440 of 1,000 ranked alternatives.
Flight Apprentice LLC
Study theory and complete practice exercises
Learn aviation fundamentals through structured lectures and study guides. Complete practice exercises and download printable handouts. Track progress with quizzes and review materials for exams.
George Smorse
Filter frequencies by state or type
Tool provides communication frequencies and runway details for major U.S., Hawaii, and Alaska airports. Filter by state or type. Search by name or IDENT code. View runway configurations and approach information.
Yoshiyuki Hirose
Pull moles to save Mole Land.
The app involves pulling moles from the ground to save them from enemies. Players can shake their device to make moles appear and use Mole Coins to purchase upgrades like sunglasses and potatoes.
Philip Perez
Explore celestial objects from your location
View celestial objects like planets, galaxies, and stars visible from your location. Filter viewing lists by observation time and object type. Generate lists for specific locations. Identify objects in the night sky using geographic data.
Smithsonian Institution
Design rockets and launch missions
Design rockets with customizable components like shape, propellant, and staging. Simulate suborbital, orbital, and escape velocity missions. Track performance metrics and adjust designs based on flight data.
Toonsy Net
Check levels and risk zones
Identify risk levels in County using an interactive map. Zoom, scroll, or use GPS for location. View risk levels from the California Geological Survey. Test your home for .
Zachariah Lowe
Estimate oxygen needs and track patient status
Calculate oxygen demand per patient with altitude adjustment, FiO₂, tidal volume, and respiratory rate inputs. Track oxygen needs over transport time. Plan and estimate oxygen supply based on equipment type and transport conditions.
Piero Massimino
Measures depth and falling object speed.
The app calculates and displays the depth of wells, cliffs, and other vertical drops. It also shows the speed of a falling object at any given moment.
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