List of satellite pass predictors

• [https://pass-predictions.re-cae.com/ Pass Predictions API by Re CAE] provides a live objects catalog and pass predictions. It features a filtering system for the catalog to only display objects with matching name or ID. The pass predictions generates, among other things, the time window, minimum elevation and the apparent brightness of the object in the sky.
• [https://karhukoti.com/webtracker/ Satellite Tracking] provides detailed real-time and pass predictions for Earth orbiting satellites.
• [https://james.darpinian.com/satellites/ See A Satellite Tonight] shows you where to look with Google Street View.
• [https://uphere.space Uphere.Space] real time tracking and predictions. As soon as new satellites are launched this application begins tracking them.
• [https://isstracker.pl/iss/godziny-przelotow?lang=en ISS Tracker], since 2015 the most popular ISS Tracker and passes list.
• Heavens-Above, called "the most popular website for tracking satellites" in 2007 by Sky and Telescope magazine and referenced by NASA websites.[https://science.nasa.gov/science-news/science-at-nasa/2005/04aug_sightings/ Shuttle Sightings – NASA Science][https://archive.today/20130104223702/http://www.skyandtelescope.com/letsgo/whatsuptonight/Sat-seeing_Tour.html?page=2&c=y Take a "Sat-seeing" Tour - What’s Up Tonight? - SkyandTelescope.com] Linked from both NASA and ESA websites as a reference for locating satellites and spacecraft.[http://www.esa.int/esaHS/ESA0I6KE43D_iss_0.html ESA – Human Spaceflight and Exploration – International Space Station – See the ISS from your home town] Includes predictions for the ISS, space shuttle and other bright satellites, planets, minor planets, and comets.
• [https://science.nasa.gov/realtime-tracking/ JPass], a java based web application. Offline since April 2010, replaced by NASA Skywatch web application.[https://web.archive.org/web/*/https://science.nasa.gov/Realtime/JPass Internet Archive Wayback Machine]
• [https://web.archive.org/web/19991013040742/http://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/JavaSSOP.html NASA Skywatch], Java based web application. Predicts visible passes for spacecraft, satellites and space debris.[http://www.universetoday.com/86057/double-spaceship-sighting-alert-and-last-chance-to-see-endeavour-in-orbit/ Double Spaceship Sighting Alert — and Last Chance to See Endeavour in Orbit]
• AMSAT [http://www.amsat.org/amsat-new/tools/predict/ Online Satellite Pass Predictions].
• [http://www.n2yo.com N2YO] provides real time tracking and pass predictions with orbital paths and footprints overlaid on Google Maps.{{cite journal|title=Introducing Space.com's New Satellite Tracker from N2YO |url=https://www.space.com/32072-introducing-space-satellite-tracker.html|date=March 3, 2016|website=space.com|access-date=February 10, 2023}} It features an alerting system that automatically notifies users via SMS and/or email before International Space Station crosses the local sky. The N2YO.com system powers ESA's, Space.com's and many other's satellite tracking web pages.
• CalSky a service offered by Arnold Barmettler for astronomers to plan their observing sessions. Features a calendar (and/or email notifications) generated for your location including information on aurora, comets, tides, solar and lunar eclipses, planets, bright satellite passes (ISS, HST, etc.), occultations, transits, Iridium flares, and decaying satellites that may be visible.{{cite web|url=https://www.cnet.com/culture/online-resources-for-the-amateur-astronomer/|title=Online resources for the amateur astronomer (Calsky) |date=August 11, 2009|publisher=cnet.com|access-date=February 10, 2023}} Retired, October 2020, then continued {{cite web|url=https://www.calsky.io/en/|title=CalSky|access-date=February 10, 2023|website=calsky.io}}
• [https://g7vrd.co.uk/public-satellite-pass-rest-api Free HTTP API] Free HTTP API for satellite predictions. JSON and iCal formats. Offered as a "best effort" resource.
• [https://spectator.earth Spectator], allows real-time tracking and overpass prediction for Earth Observation satellites. It also connects to data APIs, allowing users to get latest images from tracked satellites.
• [https://wheretheiss.at Where the ISS at?] provides real time tracking and push notifications (via email) for ISS passes over your location. REST API available as well.
• [http://mks-online.ru/iss-online/ ISS online] ISS Live webcam. ISS passes over your location. Photo from ISS on map. ISS tracker. Current ISS Crew.
• [https://tracksat.space tracksat.space], free web application for tracking satellites orbiting Earth. Allows to check passes over chosen locations, predict satellites' future positions and set up custom browser notifications. Users can create their personal dashboards to display data for multiple satellites and ground stations.

• [https://apps.microsoft.com/store/detail/satellite-tracking/9WZDNCRDNDF7 Satellite Tracking] – tracks all Earth orbiting satellites while providing detailed location information for the users location, pass prediction listing, and Yaesu rotor and Icom radio automated profiles and control.

• [https://vitotechnology.com/apps/satellite-tracker/ Satellite Tracker]
• [https://dl6fm.com/ SatGazer] - includes various orbit and object pass visualization options, and SatNOGS API integration.
• [https://apps.apple.com/us/app/sattracker/id612436393?mt=12/ SatTracker]

• [http://gpredict.oz9aec.net/ Gpredict] – GPL satellite tracking app

This section includes applications for the iPhone, iPad and iPod touch. Apps generally use coordinates provided by the device's built in GPS. Some require an active internet connection others update periodically

• [https://www.re-cae.com/horos-documentation Horos by Re CAE] shows in real time all the objects in orbit - spacecraft and debris. Announced features{{Cite web |title=Horos documentation |url=https://www.re-cae.com/horos-documentation/#roadmap-doc |access-date=2023-07-26 |website=Re CAE |language=en}} include interactions with the objects in orbit, timeline acceleration / deceleration, ground tracks and VR visualisation of objects passing over the user's location.
• GoSatWatch from GoSoftWorks, supports multiple viewing sites (home, vacation spot, etc.), no internet connection required (one data is loaded and periodically updated). View satellite position on world map or a simple polar chart showing the path the satellite will take across your sky.[http://news.cnet.com/8301-19514_3-10295463-239.html The space station in the palm of your hand | The Space Shot - CNET News]
• ISS Visibility, interface to Heavens-Above, predictions up to 30 days out, ground tracks, star chart with path shown.{{cite news|last=Paul|first=Salazar|title=Review of iPhone Astronomy Apps: ISS Visibility and Iridium Flares|url=http://urbanastronomer.blogspot.com/2010/11/review-of-iphone-astronomy-apps-iss.html|newspaper=KFOG}}
• SkySafari shows alerts for Iridium flares and ISS passes.
• [https://apps.apple.com/us/app/iss-detector/id1198597805 ISS Detector] – shows ISS position. Can show more satellites through in-app purchases.
• "Star Walk: Constellation Finder" from Vito Technology Inc shows both Iridium flares and ISS passes.
• Satellite Tracker - (ProSat) Displays satellite paths 7 days in advance and operates offline until additional days are needed. Compass view of paths as well as 3D earth view. Allows user to input and store satellite radio frequencies while accounting for live doppler shift.{{Cite web|url=https://www.amsat.org/wordpress/wp-content/uploads/2013/11/TheresAnAppForThat.pdf|title=The AMSAT Journal: There's an App for That, Smart Phone Applications for Satellites|date=1 February 2015}}

• [https://play.google.com/store/apps/details?id=com.karhukoti.satellitetracking ISS SpaceX Satellite Tracking] – tracks all Earth orbiting satellites while providing detailed location information for the users location, plus pass prediction listing.
• [https://play.google.com/store/apps/details?id=hr.from.robertpetrovic.tracksat TrackSat - Satellite tracker] – can track satellites orbiting the Earth in real time and predict their passes over your specific geolocation. Includes satellites such as International Space Station (ISS), Starlink, SpaceX Crew Dragon, Terra, NOAA and many others.
• [https://play.google.com/store/apps/details?id=com.polilabs.issonlive ISS on Live], app with live cameras of ISS, realtime tracking position and visible passes prediction. It also predicts sunrises, sunsets and daytime passes.
• Satellite AR, by Analytical Graphics augmented reality view of the sky for currently visible satellites only. Includes modes for ISS and bright objects as well as modes which include the thousands of all known satellites.[http://spacedata.agi.com/MobileApps/about.htm Satellite AR: Satellite tracking with augmented reality on Android]
• Satellite Passes, supports world map view, augmented reality view, satellite footprint, simulation mode and notifications.[http://satellitepasses.hibiapps.com Satellite Passes: Tracking for a variety of satellites]
• Heavens Above has an [https://play.google.com/store/apps/details?id=com.heavens_above.viewer Android app] with functionalities similar to the website.{{cite web|url=https://phys.org/news/2016-09-doomed-tiangong-chinese-space-station.html |title=How to see the doomed Tiangong-1 Chinese space station |publisher=Phys.org |author=Nancy Atkinson |access-date=March 22, 2018}}
• [https://play.google.com/store/apps/details?id=com.runar.issdetector&hl=en ISS Detector] – shows ISS position. Can show more satellites, comets and planets through in-app purchases.
• [https://play.google.com/store/apps/details?id=com.rtbishop.look4sat&hl=en Look4Sat] – predicts satellite passes from a two-line element set database, including a polar view function with satellite footprints.

• Spymesat,{{cite web |url=http://www.spymesat.com/ |title=Home |website=spymesat.com}} by Orbit Logic,{{Cite web|url=http://www.orbitlogic.com/spymesat-mobile-app.html|title = Orbit Logic SpyMeSat Mobile App}} a mobile app for iOS and Android, computes pass predictions for any selected location for available commercial and unclassified government high-resolution imaging satellites and provides real-time notifications and dynamic real-time imaging resolution and satellite position information and maps during predicted passes. SpyMeSat also includes the ability to download recent high-resolution satellite images for the user-selected location, or task selected imaging satellites to take a new image.[http://www.spacedaily.com/reports/SpyMeSat_Mobile_App_Now_Offers_High_Resolution_Satellite_Imagery_999.html SpyMeSat Mobile App Now Offers High-Resolution Satellite Imagery][http://www.spacewar.com/reports/SpyMeSatGov_Satellite_Imagery_Mobile_App_for_Government_999.html SpyMeSatGov: satellite imagery mobile app for government]

• Geochron electronic world clock, displaying on an HDTV monitor

• [https://metacpan.org/release/Astro-satpass Astro::satpass] Perl library by Tom Wyant, calculates star, Sun, and Moon positions as well as satellite pass predictions. Interfaces with Celestrak or Space Track.[https://metacpan.org/release/Astro-satpass Tom Wyant / Astro-satpass - metacpan.org]
• [https://www.orekit.org OreKit] Java library for low-level space dynamics library.{{cite web|title=CS launches the 1st free operational Space Flight Dynamics|url=http://uk.c-s.fr/September-11-2008-OREKIT-Orbits-Extrapolation-KIT-CS-launches-the-1rst-free-operational-Space-Flight-Dynamics1-Java_a192.html|publisher=CS Communication & Systèmes}}

All websites and applications base their predictions on formula using two-line element sets which describe the satellites and their orbits.

• [http://celestrak.com Celestrak] provided by Dr. T.S. Kelso, includes visible objects, openly available[http://www.centerforspace.com/tools/ Welcome to Center for Space Standards & Innovation (CSSI)]
• [https://www.space-track.org SpaceTrack] maintained by the United States Strategic Command provides orbital information on unclassified satellites requires an account but is available for educational and hobbyist use as well as military, government and spacecraft and payload owners.[https://www.space-track.org/perl/new_account.pl Space-Track - New Account] {{webarchive|url=https://web.archive.org/web/20110612024229/https://www.space-track.org/perl/new_account.pl |date=2011-06-12 }}{{cite book|last=Palgen|first=Trevor|title=Blank spots on the map : the dark geography of the Pentagon's secret world|date=2010|publisher=New American Library|location=New York|isbn=978-0-451-22916-8|edition=Updated}}
• JPL Horizons On-Line Ephemeris System, maintained by the Solar System Dynamics Group at the Jet Propulsion Laboratory, provides ephemeris for asteroids, comets, planets, moons, solar system planets, the Sun, and some spacecraft.{{cite book|last=Webb|first=Stephen|title=Measuring the universe : the cosmological distance ladder|date=1999|publisher=Springer|location=London|isbn=1-85233-106-2|edition=[Repr.]}}
• [http://www.satellite-calculations.com/ Satellite Calculations]
• [https://tle.ivanstanojevic.me/ TLE API] satellite data provided in JSON format over REST API. Source https://api.nasa.gov/

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Category:Outer space lists

Category:Astronomy websites