SpaceRef - Astronautics - Guidance And Tracking

SpaceRef - Astronautics - Guidance And Tracking - Satellite Locators

Chandra X-Ray Telescope locator - This website hosted at NASA MSFC allows you to see where Chandra is relative to the Earth's surface. Updated once per minute.

Heavens Above - The aim of this website is to provide information needed to observe, satellites, Mir and the International Space Station, the Space Shuttle, and flares from Iridium satellites. Heavens-Above GmbH is a private company which was founded to further the development of this website previously operated by the German Space Operations Center.

Hubble Space Telescope Locator - This NASA MSFC website allows you to see where the HST is in orbit relative to the Earth's surface. Updated once a minute.

International Space Station location - This website at NASA MSFC allows you to see the location of ISS in realtime. A graphical representation of the Earth, updated once per minute, is used to show the exact location.

J-Pass Satellite Passes - A java application developed at NASA MSFC that allows you to determine the location of a variety of satellites overhead relative to your position on Earth.

J-Track 3-D Satellite Locator - A rather interesting Java-driven application that presents a 3D representation of Earth and the current location of a large number of satellites in orbit around it. You can pick out specific satellties and zoom in and out. This is a rather fascinating image to behold.

J-Track Amateur Satellite Locator - This Java applet developed at NASA MSFC allows you to locate various amateur satellites.

J-Track satellite tracker - This site at NASA MSFC uses a java applet that allows you to see the real time location of Mir, ISS, The Hubble Space Telescope and other satellites.

J-Track Search and Rescue Satellite Locator - This Java applet allows you to locate the GOES, COSPAS, and NOAA weather satellites in orbit that are equipped with Search and Rescue beacon locators.

Jonathan's Space Report - This site presents a constantly updated world-class collection of launch schedules, satellite re-entries, and other invaluable information.

Lloyd's satellite constellations - This comprehensive website site offers a wide range of information and links on communications satellite constellations and their corporate owners.

Mir Locator - This website hosted at NASA MSFC allows you to see where Space Station Mir is relative to the Earth's surface. Updated once per minute.

NASA Realtime Tracking - This NASA website tracks the Space Shuttle, International Space Station, and Mir. It also contains sighting opportunities, landing groundtracks, and weather information.

NASA Sky Watch - NASA SkyWatch is a web-based Java application that provides sky watchers around the world with a visual picture of when and where the International Space Station, the space shuttle and other spacecraft can be seen with the unaided eye as they pass overhead.

NOAA 12 weather satellite locator - This website hosted at NASA MSFC allows you to see where the NOAA 12 weather satellite satellite is relative to the Earth's surface. Updated once per minute.

Orbital Information Group (OIG) - OIG is operated by NASA GSFC and provides access to unclassified satellite orbital data that has been received from United State Space Command (USSPACECOM). This orbital data consists of Two-Line Element (TLE) sets, Satellite Catalog Messages, Project Tip Messages, Satellite Decay Messages, Predicted Decay Forecasts, Satellite Box Scores, and Satellite Reports.

Satellite Boxscore - This site is hosted by the US Space Command and tracks all objects in space. It provides a running tally on launches, reentries, and overall launch figures for all countries who have launched satellites.

Satellite Ephemeris Data, INTELSAT - Eleven Parameter Satellite Ephemeris Data is provided via an interactive web interface for use with the new earth station pointing data program enabling any earth station to calculate pointing angles to any selected INTELSAT satellite. INTELSAT routinely updates the data for each satellite on a weekly basis.

Satellite Orbit Determination - This website by the Delft Institute for Earth-Oriented Space Research (DEOS) provides information on satellite tracking and location.

SatPassess - Satellite Passes over North American Cities - This web page allows users to determine when certain selected spacecraft will be in range for visual observations or for radio communications. Data are presently provided in tabular form for cities in the United States and Canada, and for nine different satellites. Includes the current Space Shuttle Mission, Mir, the International Space Station, the Hubble Space Telescope and others.

Space Shuttle Tracker - This website at NASA MSFC provides a real time image of where the Space Shuttle is relative to the Earth.

Space Shuttle Tracker - This website is hosted by United Space Alliance and is active only during shuttle missions. Shockwave plug-in is required.

Starshine satellite locator - This website hosted at NASA MSFC allows you to see where the Starshine satellite is relative to the Earth's surface. Updated once per minute.