Cookies and Geolocation

Our site uses cookies in order to remember your settings and give you the best experience. Other services provided by third parties may use cookies as well to show you relevant advertising in our pages. Please note also that, some site's functions might read your location and show your approximate coordinates to other users. If you keep using the site you agree.

Time Control


International Space
Station - ISS
North Korean
MKS-4 Satellite
HD Video from
ISS cams (with overlay)
+Flare Predictions
In this page you can track in real time all the satellites orbiting the Earth, with both 2D and 3D interactive representations, predict their passes, view their trajectory among stars on an interactive sky chart, predict satellite flares and transits (across the Sun and the Moon), find out the best location to see these events on a detailed Google map. You can also follow satellite re-entries and other special events, join the observer community, post messages and share your comments and observations. Currently in our database we have more than 9000 observation reports!. You won't find any other tracker that provides all these functions!

Read Observers' Reports! is the only website that has a public DB of satellite observations where you can search for flare reports

Latitude [deg]
Altitude [km]
DEC J2000 [d:m:s] Sun El.[deg]
Longitude [deg]
Azimuth [deg] RA J2000 [h:m:s] Loaded SAT :

JD Elevation [deg] Magnitude


Do you want to observe the International Space Station crossing your sky?
Install our 3D tracker for Android devices and you have just to point your phone to the sky and follow the line to find the ISS. You can also track the Station 24 hours a day with a 3D view of the Earth, constellations and more than 15.000 stars. A simple count down will inform you when you can actually see the ISS with the naked eye. Visit this web page for more details or for downloading the App.

News from Space and Spaceflights

29/08/2016 - The Structural Test Articles (STA) that will make up the first core stage of the Space Launch System (SLS) rocket is in the final phase of construction at the Michoud Assembly Facility (MAF) in New Orleans. Focus is now switching to the welds on the core that will create the first flight core that will launch Exploration Mission -1 (EM-1). (source: - more...)

29/08/2016 - NASA has selected United Launch Services LLC of Centennial, Colorado, to provide launch services for a mission that will address high-priority science goals for the agency's Journey to Mars. Mars 2020 is targeted for launch in July 2020 aboard an Atlas V 541 rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. The rover will conduct geological assessments of its landing site on Mars, determine the habitability of the environment, search for signs of ancient Martian l ... (source: - more...)

28/08/2016 - Lockheed Martin has delivered the Orion crew vehicle s heat shield for the upcoming EM-1 test flight to the Kennedy Space Center from its manufacturing facility in Denver, Colorado. The heat shield, upgraded from data received after Exploration Flight Test -1 (EFT-1) in 2014, will help protect Orion from the harsh environment of reentry at speeds of approximately 11 kilometers per second (24,600 mph). (source: - more...)

27/08/2016 - NASA's Juno space probe on Saturday was set to pass the closest it will get to the planet Jupiter during the main phase of its planned mission to the gas giant, the US space agency's officials said. Juno was to swing within some 2,600 miles (4,200 kilometers) of the solar system's largest planet, the closest any spacecraft has passed, traveling at 130,000 miles per hour (208,000 kilometers per hour) at around 5:51 am (12:51 GMT). It was the first time Juno's eight scientific instruments and its ... (source: - more...)

26/08/2016 - Where once it was enough to develop revolutionary technology to send into space, now there is increased emphasis on protecting that technology once it gets into orbit. "We're going through a renaissance," Lt. Gen Jay Raymond told a group of young space professionals at a July 14 conference in Washington. "That renaissance is fueled by the need to protect and defend these ... space capabilities that we have been so reliant on." In "renaissance," Raymond, the Air Force's deputy chief of staff ... (source: - more...)

25/08/2016 - SpaceX’s CRS-9 Dragon spacecraft has departed from the International Space Station (ISS) on Friday, following a highly successful Commercial Resupply Services (CRS) mission to the orbital outpost. Known as End Of Mission (EOM) operations, Dragon’s safe return will be marked by a splashdown in the Pacific Ocean later in the day. (source: - more...)

25/08/2016 - A new method for analyzing the chemical composition of stars may help scientists winnow the search for Earth 2.0. Yale University researchers Debra Fischer and John Michael Brewer, in a new study that will appear in the Astrophysical Journal, describe a computational modeling technique that gives a clearer sense of the chemistry of stars, revealing the conditions present when their planets formed. The system creates a new way to assess the habitability and biological evolution possibilities of planets o ... (source: - more...)

25/08/2016 - A rededication and ribbon cutting ceremony has taken place at the Pacific Spaceport Complex – Alaska (PSCA) to reopen the dual use commercial spaceport after a devastating launch failure in 2014. The failure of the STARS-IV missile resulted in heavy damage to the Integration Processing Facility (IPF) and launch pads 1 and 2. (source: - more...)

24/08/2016 - Arianespace successfully launched its fourth Ariane 5 mission of the year with the deployment of two more telecommunication satellites from the European Spaceport in Kourou on Thursday. The launch of Intelsat 33e and Intelsat 36 marked the heaviest launch to date for the European workhorse, with liftoff in the middle of the launch window at 22:17 UTC. (source: - more...)

24/08/2016 - China has unveiled illustrations of a Mars probe and rover it aims to send to the Red Planet at the end of the decade in a mission that faces "unprecedented" challenges, state media said Wednesday. China, which is pouring billions into its space programme and working to catch up with the US and Europe, announced in April it aims to send a spacecraft "around 2020" to orbit Mars, land and deploy the rover. Zhang Rongqiao, chief architect of the project, said Tuesday they were targeting July or Aug ... (source: - more...)

24/08/2016 - Exploration Systems Development (ESD) Deputy Associate Administrator Bill Hill explained plans to mitigate flow concerns – such as recent adjustments to the Space Launch System (SLS) Core Stage delivery schedule – to keep the program on a path to launch Exploration Mission-1 (EM-1) in late 2018. Mitigation may include extra shifts to find margin in the schedule. (source: - more...)

23/08/2016 - The next generation weather satellite, Geostationary Operational Environmental Satellite “GOES-R”, has arrived in Florida for pre-launch processing. The spacecraft completed a plane ride inside a USAF C-5 cargo plane, touching down on the Shuttle Landing Facility (SLF) runway on Monday ahead of being unpacked on Tuesday. (source: - more...)

22/08/2016 - NASA has claimed the threat of MicroMeteoroid and Orbital Debris (MMOD) – small pieces of space debris capable of punching bullet hole wounds into spacecraft – is the “primary” threat to the safety of Commercial Crew vehicles. The claim was made as the Agency works on closing the gap between the current analysis of the Loss Of Crew (LOC) numbers with the Program’s goal. (source: - more...)

19/08/2016 - The distant planet GJ 1132b intrigued astronomers when it was discovered last year. Located just 39 light-years from Earth, it might have an atmosphere despite being baked to a temperature of around 450 degrees Fahrenheit. But would that atmosphere be thick and soupy or thin and wispy? New research suggests the latter is much more likely. Harvard astronomer Laura Schaefer (Harvard-Smithsonian Center for Astrophysics, or CfA) and her colleagues examined the question of what would happen to GJ 1132b ... (source: - more...)

19/08/2016 - The International Space Station (ISS) has finally received a new docking adapter on Friday, which will enable the orbital outpost to welcome the first of a new generation of crew vehicles. The spacewalkers of EVA-36 installed the long-awaited International Docking Adapter (IDA) via efforts that got underway at 12:04 PM GMT and ended just under six hours later. (source: - more...)

19/08/2016 - United Launch Alliance (ULA) successfully launched a Delta IV rocket in the early hours of Friday morning, carrying out the AFSPC-6 mission for the US Air Force. The launch, which took place from Cape Canaveral, occurred slightly after the opening of a 65-minute window, with T-0 at 00:52 local time (04:52 UTC). (source: - more...)

18/08/2016 - The latest static fire test of the development RS-25 engine (E0528) has taken place at the Stennis Space Center. The test is part of a series aimed at validating hardware and software elements, such as the improved engine controller, as the former Space Shuttle Main Engines (SSME) prepare to launch the opening Space Launch System (SLS) missions. (source: - more...)

17/08/2016 - As the landed booster from the JCSAT-16 mission sailed into Port Canaveral on Wednesday, the next first stage – set to launch September’s Amos-6 mission – is expected to complete a road trip to Cape Canaveral over the coming days. Meanwhile, robotic assets on the ISS are preparing to remove the IDA-2 payload from the trunk of the CRS-9 Dragon on Wednesday evening. (source: - more...)

16/08/2016 - NASA’s Exploration Systems Development office has completed its review of progress to date as well as forward path activity on the development of the Space Launch System (SLS) rocket to the NASA Advisory Council. While several tasks and issues remain open, SLS continues a steady march toward its planned debut in late 2018 during the EM-1 mission as NASA continues to refine the rocket s overall configuration thrust profiles. (source: - more...)

15/08/2016 - The Chinese have launched the first satellite that can achieve quantum communications between space and Earth. The launch of the Quantum Science Satellite – called Mozi – took place at 17:40 UTC on Monday using a Long March-2D (Chang Zheng-2D) launch vehicle from the 603 Launch Pad of the LC43 complex at the Jiuquan space center. (source: - more...)

13/08/2016 - SpaceX launched Japan’s JCSAT-16 communications satellite in the early hours of Sunday via a Falcon 9 rocket, with lift off occurring from SLC-40 at Cape Canaveral at the start of a two-hour launch window that opened at 01:26 local time (05:26 UTC). Once again, a return of the first stage to SpaceX’s drone ship was successful. (source: - more...)

12/08/2016 - With a series of successful test firings completed by Orbital ATK, engineers are gaining confidence in how their five segment boosters will perform in their role in helping the Space Launch System (SLS) push through first stage flight. With the first two flight boosters in production, Orbital ATK is also disassembling the QM-2 motor, which test fired back in June, allowing for all of its parts to be inspected. (source: - more...)

10/08/2016 - Preparations for SpaceX’s next launch completed a major milestone late on Wednesday, via the Static Fire test of the Falcon 9 at Cape Canaveral’s SLC-40 pad. This latest Falcon 9 is tasked with lofting the JCSAT-16 satellite into its Geostationary Transfer Orbit (GEO) on August 14, once again involving the first stage making a landing attempt on the drone ship. (source: - more...)

09/08/2016 - The long awaited launch of Gaofen-3 took place on Tuesday, lofted via the Chinese Long March-4C (Chang Zheng-4C) launch vehicle. The rocket, launched from the Taiyuan Satellite Launch Center’s LC9 Launch Complex at 22:55 UTC, successfully orbited the new addition to the Gaofen fleet of remote sensing satellites. (source: - more...)

08/08/2016 - NASA’s aim to provide a ride to numerous secondary payloads on the debut mission for the Space Launch System (SLS) and Orion has resulted in Lockheed Martin signing a contract with NASA to deploy the SkyFire lunar flyby mission. The 6U CubeSat will join a team of 13 small spacecraft that will ride uphill on the Exploration Mission -1 (EM-1) flight in 2018. (source: - more...)

05/08/2016 - China launched a communications satellite on Friday that supposedly will be used for mobile communications. The launch of the first Tiantong-1 satellite took place at 16:22 UTC on August 5 using a Long March-3B/G2 (Chang Zheng-3B/G2) from the LC3 Launch Complex at the Xichang Satellite Launch Center. (source: - more...)

05/08/2016 - As part of its comprehensive review to the NASA Advisory Council, the US space agency has presented its review of progress on the development of a Deep Space Habitat that will allow astronauts to perform multi-month and multi-year missions in deep space – all while guiding the agency towards its ambitious plan of landing humans on Mars by the end of the 2030s. (source: - more...)

Visual SAT-Flare Tracker 3D - Online

Thank you for using Visual SAT-Flare Tracker Online
In this page you can track satellites in real time, predict passes and flares.
(the 3D desktop version is still available for download)

This page is interactive so you can change the time by means of the following keys:

[s] Increase time by 1 second
[S] Decrease time by 1 second
[m] Increase time by 1 minute
[M] Decrease time by 1 minute
[h] Increase time by 1 hour
[H] Decrease time by 1 hour
[d] Increase time by 1 day
[D] Decrease time by 1 day
[0] Real time (reset time changes)
More options and commands are available through the ADVANCED button.

Earth Map Legend

Red Line Satellite's Orbit projected on the ground
Blue Line Ground Flare Track (it represents the location where the reflection hits the ground, which is where the flare brightness reaches its maximum.
Green Line Reflected ray that hits the ground generating the flare.
Black Line Shadow ground track (it represents the location where the satellite can be seen crossing either the Sun disk or the Moon disk)

Full Screen

Photo credit: Oleg Artemyev


© 2011-2016 -   - All rights reserved.