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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

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...)

04/08/2016 - SpaceX is lining up its next two missions, with Falcon 9 hardware currently in pre-launch preparations for launch. In Florida, the Falcon 9 tasked with the JCSAT-16 launch is preparing for a Static Fire test on August 10, while at SpaceX’s test center in Texas, the Amos-6 first stage has been static fired on the test stand ahead of shipping to the Cape. (source: - more...)

03/08/2016 - SNC’s Dream Chaser crew vehicle is preparing for another California adventure, highlighted by a second free flight, approach and landing test in December. Although she was rejected by NASA as a Commercial Crew partner, the Agency is deeply invested in the vehicle’s test program, classing it as “synergistic” with her cargo carrying sister that has earned a NASA future via the CRS2 contract. (source: - more...)

01/08/2016 - NASA s Human Exploration and Operations (HEO) standing committee has presented the NASA Advisory Council with a status update regarding the agency s direction and execution of the upcoming Asteroid Redirect Mission (ARM). Among the prominent updates include confirmation of new target launch dates and information on how NASA will handle partner payloads and the creation of the ARM Investigation Team. (source: - more...)

29/07/2016 - The NASA, Aerojet Rocketdyne, and Syncom Space Services team at Stennis Space Center in Mississippi have conducted a “make-up” hot-fire test of a development RS-25 engine (E0528) on Friday. The test was deemed to be for the full duration of 650 seconds, as required, following problems with the A-1 test stand facility that resulted in a mid-July test being cut short. (source: - more...)

28/07/2016 - A returned Falcon 9 first stage has been test fired at SpaceX’s McGregor test center, in what is the start of a series of firings. F9-S1-0024 returned home after helping push JCSAT-14 uphill earlier this year, prior to landing on the ASDS located in the Atlantic Ocean. Although this stage isn’t expected to fly again, it is involved in critical ground testing, which will pave the way for the first relaunch of a Falcon 9 booster. (source: - more...)

27/07/2016 - The communication link between the Rosetta spacecraft and the Philae lander was turned off on Wednesday, marking a bittersweet milestone in the final days of the mission to Comet 67P/Churyumov-Gerasimenko. Although there hasn’t been any communication from Philae for a year, Wednesday’s event officially closed the chapter on a mission that will conclude with Rosetta crashing into the comet. (source: - more...)

27/07/2016 - United Launch Alliance successfully launched a satellite for the US National Reconnaissance Office Thursday aboard an Atlas V rocket. Liftoff for the mission designated NRO Launch 61, or NROL-61, occurred from Cape Canaveral’s Space Launch Complex -41 (SLC-41) at the start of the launch window that opened at 08:37 local time (12:37 UTC). (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


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