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Time Control

International Space
Station - ISS
Asteroid 2004 BL86
Flyby Tracking
Comet Lovejoy Q2
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
Observation of the week: Observation of COSMOS 2502 (Mag. 5) observed on 25/01/2015 UTC by COSPAR Station 8336. More...

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

23/01/2015 - Introducing the new head of Russia's Federal Space Agency Roscosmos, Rogozin, who oversees Russia's defense and space industries, said that the creation of the Roscosmos state corporation would help developing this cooperation. Igor Komarov was appointed Wednesday the head of Roscosmos until the establishment of the corporation on the basis of the current federal agency and the United Rocket and Space Corporation. The new reforms are being introduced in response to Russian launch vehicle fai ... (source: - more...)

23/01/2015 - Getting around on Mars is tricky business. Each NASA rover has delivered a wealth of information about the history and composition of the Red Planet, but a rover's vision is limited by the view of onboard cameras, and images from spacecraft orbiting Mars are the only other clues to where to drive it. To have a better sense of where to go and what's worth studying on Mars, it could be useful to have a low-flying scout. Enter the Mars Helicopter, a proposed add-on to Mars rovers of the future that c ... (source: - more...)

23/01/2015 - ESA’s Intermediate eXperimental Vehicle (IXV) spaceplane is finally into its final processing flow towards launch, following the loading of propellants and work to encapsulate the vehicle inside its payload fairing. The launch – atop a Vega rocket – is set for February 11, following a decision to alter the launch trajectory due to safety concerns. (source: - more...)

22/01/2015 - "That's one small step for (a) man; one giant leap for mankind." When Neil Armstrong took his first steps on the moon, many strides came before to achieve that moment in history. The same is true for a human mission to Mars. One step towards that journey begins in March 2015, when NASA astronaut Scott Kelly will make history as the first American to spend a year in space. "This will be a significantly different experience; being aboard the International Space Station more than twice the duration o ... (source: - more...)

22/01/2015 - Canada’s multi-tasking robot, Dextre, successfully removed the CATS (Cloud-Aerosol Transport System) payload from the unpressurised trunk of the CRS-5/SpX-5 Dragon on Thursday morning. The payload was handed over to the Japanese Experiment Module, Kibo, marking the first “handover” between the Canadian robot and the JAXA arm. (source: - more...)

20/01/2015 - Russian rocket manufacturer Energia is currently in talks with US space launch provider United Launch Alliance (ULA) over a contract to deliver 30 additional RD-180 rocket engines, Energia head Vladimir Solntsev said Friday. "We are currently discussing [with ULA] a contract to increase the engine shipment - i.e. at least 30 more engines," Solntsev said on Rossiya-24 TV channel. According to the Energia head, the United States wants the engines as soon as possible to "be sure of the future o ... (source: - more...)

16/01/2015 - SpaceX will conduct a second attempt at landing a Falcon 9 v1.1 core stage on to its Autonomous Spaceport Drone Ship (ASDS) at the end of the month, during its primary mission of lofting the DSCOVR spacecraft to orbit. With stunning footage of the first attempt – during the CRS-5 mission – showing how close the core stage came to nailing the landing, the next propulsive return will aim to go one stage further. (source: - more...)

16/01/2015 - A Russian manufacturer on Friday announced a $1 billion deal to supply engines for the US Antares rockets making deliveries to the International Space Station. Russian producer Energia said in a statement that it had signed the bumper deal to build 60 engines with private US firm Orbital Science, which has a $1.9 billion contract with NASA to supply the space station. Deliveries of the new RD-181 engines would start in June, the statement said. The agreement comes after an Orbital Scienc ... (source: - more...)

15/01/2015 - Following a preliminary review of data into the suspected International Space Station (ISS) ammonia leak, NASA ground control teams are now confident that an initial false indication, compounded by the effects of the response to that indication, was to blame for the suspected leak of ammonia into the interior of the station. (source: - more...)

14/01/2015 - Astronauts at the International Space Station rushed to take shelter early Wednesday after an alarm rang indicating a possible ammonia leak, but that may have been a false alarm, the US space agency said. The six-member crew donned emergency masks and hurried to the Russian side of the orbiting lab after the alert at around 4 am (0900 GMT), closing the hatch to the US side behind them. While the Russian space agency told news outlets in Moscow that the cause was a toxic ammonia leak, NASA said a ... (source: - more...)

14/01/2015 - Alarms in the US section of the International Space Station – pointing to a potential, but likely false indication of an ammonia leak – resulted in the two Americans and one European astronaut evacuating into the Russian section of the orbital outpost. It is currently believed bad sensor data – as opposed to an actual leak – is to blame, although the crew will remain camped out in the Russian section for the interim. (source: - more...)

12/01/2015 - NASA's Dawn mission is closing in on a mysterious, unknown world in the asteroid belt. The dwarf planet Ceres named after the Roman goddess of agriculture awaits to unlock its secrets. So far, we've only had a glimpse of this enigmatic orb using the Hubble Space Telescope, so it's more than intriguing what we will find there after Dawn's arrival. Marc Rayman, the Mission Director and Chief Engineer at NASA's Jet Propulsion Laboratory, can't hide his contagious excitement: "Everyone should be excit ... (source: - more...)

11/01/2015 - SpaceX’s CRS-5/SpX-5 Dragon is scheduled to berth with the International Space Station (ISS) on Monday morning. While a large amount of attention has been focused on the near-success of the first landing of a returning core stage on the Autonomous Spaceport Drone Ship, the primary aim of the mission is Dragon’s delivery an array of cargo to the orbital outpost. (source: - more...)

10/01/2015 - A first-ever attempt to recycle a rocket by guiding the Falcon 9's first stage down to a precision landing on an ocean platform failed on Saturday, SpaceX CEO Elon Musk said. "Rocket made it to drone spaceport ship but landed hard," he wrote on Twitter. "Close but no cigar this time. Bodes well for the future tho." SpaceX had given the test landing a 50-50 chance of success. The launch's primary mission was to send the unmanned Dragon cargo ship to orbit, and that went smoothly after two del ... (source: - more...)

09/01/2015 - NASA’s Stennis Space Center has test fired the first RS-25 (unit E0525) of the Space Launch System (SLS) era on Friday, marking the beginning of a new career for the famous engine. Four of the former Space Shuttle Main Engines (SSME) are set to power each SLS during the ride to orbit, opening with Exploration Mission -1 (EM-1) in mid-2018. (source: - more...)

08/01/2015 - The gas giant Jupiter safeguards many secrets crucial to our understanding of the evolution of our solar system. It could also provide insights on how giant planets form and the role these titans played in putting together the rest of the solar neighborhood. NASA's Juno spacecraft is on its way to reveal those mysteries as the probe is on course for its planned arrival at Jupiter on July 4, 2016. "On that date, Juno will make its first dive over the planet's poles, firing its rocket engine to slow ... (source: - more...)

08/01/2015 - A careful study of images taken by the NASA rover Curiosity has revealed intriguing similarities between ancient sedimentary rocks on Mars and structures shaped by microbes on Earth. The findings suggest, but do not prove, that life may have existed earlier on the Red Planet. The photos were taken as Curiosity drove through the Gillespie Lake outcrop in Yellowknife Bay, a dry lakebed that underwent seasonal flooding billions of years ago. Mars and Earth shared a similar early history. The Red Plan ... (source: - more...)

07/01/2015 - An array of high tech instruments are being put through their paces ahead of becoming part of the James Webb Space Telescope (JWST). The successor to the Hubble Space Telescope – JWST engineers are currently testing hardware to ensure it will be able to function properly 1.5 million miles from Earth. The spacecraft is preparing for a launch late in 2018. (source: - more...)

06/01/2015 - SpaceX on Tuesday aborted its Falcon 9 rocket launch at the last minute, postponing a landmark bid to open a new era of recycling rockets by landing a key part on a platform in the Atlantic Ocean. The problem that led to the delay involved the rocket's second stage, which is the portion that carries the cargo vessel to orbit after the first stage falls back to Earth. "The issue developed fairly late in the terminal count," said NASA commentator George Diller. The California-based company he ... (source: - more...)

02/01/2015 - A privately owned Russian company called Lin Industrial has announced that it is capable of constructing a lunar base. The projected cost of constructing a first-stage lunar outpost, followed by a second-stage facility (manned by 2 and 4 crewmembers respectively) is about $9.3 billion, according to the company's chief designer. The construction would require 13 heavy carrier rocket launches, and a total 37 launches over a period of five years to maintain the base, according to the company's ... (source: - more...)

02/01/2015 - NASA is finally ready to begin the test fire and development program for the engines that will push the Space Launch System (SLS) uphill in 2018 and beyond. The RS-25 – formally known as the Space Shuttle Main Engine (SSME) – will enjoy a test program that will also evaluate higher inlet pressures and a state of the art controller, as the veteran engines gain a new lease of life. (source: - more...)

02/01/2015 - Project PoSSUM, a non-profit suborbital research program, announces the first PoSSUM scientist-astronaut class to be held at the Embry Riddle Aeronautical University in Daytona Beach, Fla., Feb. 7 - 10, 2015. This unique opportunity allows individuals to train with some of the world's leading upper atmospheric scientists and to fly to space as part of an international research campaign dedicated to the study of global climate. The four-day, fully immersive qualification program was designed by for ... (source: - more...)

01/01/2015 - Today, the surface of Venus is notoriously hellish - hot, dry and suffocated by a thick lower atmosphere of toxic gases. But Venus was once covered in oceans. The planet has likely always been too hot to host water, but new research suggests it once featured strange oceans of liquid carbon dioxide. Aside from the intolerable, ultra-dense atmosphere - complete with clouds of corrosive sulfuric acid - and high temperatures, Venus is often called Earth's twin. The two planets are very similar i ... (source: - more...)

30/12/2014 - The Chinese have closed out 2014 with the launch of the Fengyun-2G (Fengyun-2-8) geostationary meteorological satellite using a Long March 3A (Chang Zheng 3A) rocket. The launch took place at 01:02 UTC on Wednesday from Pad LC2 at the Xichang Satellite Launch Center. (source: - more...)

29/12/2014 - European researchers said Monday they have devised the first tiny motion detector that could help find microscopic life forms on distant planets. Until now, scientists have tried to find signs of extraterrestrial life by listening for sounds that might be emitted from an alien world, by scanning the skies with potent telescopes and by sending robotic probes and rovers to analyze the chemical fingerprint of samples from comets and planets. But researchers in Switzerland and Belgium were intereste ... (source: - more...)

29/12/2014 - Mars dominated planetary research headlines in 2014 as an international fleet of orbiters and NASA’s two rovers returned unparalleled scientific research on the Red Planet. In 2014, scientists marked Opportunity’s 10-year anniversary on Mars, watched the near miss of comet Siding Spring, and announced Curiosity’s groundbreaking confirmation of the presence of organics on the surface Mars. (source: - more...)

29/12/2014 - The MESSENGER spacecraft will soon run literally on fumes. After more than 10 years traveling in space, nearly four of those orbiting Mercury, the spacecraft has expended most of its propellant and was on course to impact the planet's surface at the end of March 2015. But engineers on the team have devised a way to use the pressurization gas in the spacecraft's propulsion system to propel MESSENGER for as long as another month, allowing scientists to collect even more data about the planet closest to th ... (source: - more...)

26/12/2014 - For NASA, 2014 marked the 10th anniversary of MESSENGER in space and the 1oth anniversary of Cassini at Saturn. Throughout the year, the two probes returned valuable scientific data to Earth while scientists revealed the fruits of the probes labors through several announcements of groundbreaking discoveries at the two planets, including new information about solar neutrons (Mercury) and the many moons (and one new one) of Saturn. (source: - more...)

26/12/2014 - The Chinese launched another satellite on the Yaogan Weixing series on Saturday. Launch of Yaogan Weixing-26 took place at 03:22 UTC using a Long March-4B launch vehicle from the LC9 launch complex at the Taiyuan Satellite Launch Center. (source: - more...)

26/12/2014 - Russia will conduct its second Soyuz launch in the space of two days on Friday, with a Soyuz-2-1b deploying the second Resurs-P remote sensing satellite for Roskosmos. The launch is set to take place from Site 31/6 at the Baikonur Cosmodrome, with liftoff scheduled for 00:55 local time on Saturday (18:55 UTC on Friday). (source: - more...)

26/12/2014 - A new analysis of a Martian rock that meteorite hunters plucked from an Antarctic ice field 30 years ago this month reveals a record of the planet's climate billions of years ago, back when water likely washed across its surface and any life that ever formed there might have emerged. Scientists from the University of California, San Diego, NASA and the Smithsonian Institution report detailed measurements of minerals within the meteorite in the early online edition of the Proceedings of the Nationa ... (source: - more...)

24/12/2014 - Russia’s Soyuz-2-1b rocket conducted its penultimate flight of the year on Thursday morning, successfully carrying the second Lotos-S reconnaissance satellite into orbit in a morning launch from the Plesetsk Cosmodrome. Liftoff was on schedule at 06:01 local time (03:01 UTC). (source: - more...)

23/12/2014 - The successful launch of Russia's newest heavy rocket, the Angara A5, from the Plesetsk Cosmodrome, is a significant milestone in the history of Russia's rocket industry, providing the state with independent access to space. The collapse of the USSR in the beginning of 1990s resulted in dissolution of the Soviet airspace industry infrastructure: plants and design bureaus located in former republics were divided from Russia by new interstate borders. The state became highly dependent on its n ... (source: - more...)

23/12/2014 - ATK’s test facility in Promontory, Utah is now officially looking forward to the next full-scale test of a five-segment solid rocket motor – set to take place at 9:30 am local time on March 11, 2015. The realigned date was set following a lengthy investigation – and resolution path – into problems found in the aft segment of the Qualification Motor -1 (QM-1). (source: - more...)

21/12/2014 - The first global maps of atmospheric carbon dioxide from NASA's new Orbiting Carbon Observatory-2 mission demonstrate its performance and promise, showing elevated carbon dioxide concentrations across the Southern Hemisphere from springtime biomass burning. At a media briefing today at the American Geophysical Union meeting in San Francisco, scientists from NASA's Jet Propulsion Laboratory, Pasadena, California; Colorado State University (CSU), Fort Collins; and the California Institute of Technol ... (source: - more...)

19/12/2014 - NASA and an international team of planetary scientists have found evidence in meteorites on Earth that indicates Mars has a distinct and global reservoir of water or ice near its surface. Though controversy still surrounds the origin, abundance and history of water on Mars, this discovery helps resolve the question of where the "missing Martian water" may have gone. Scientists continue to study the planet's historical record, trying to understand the apparent shift from an early wet and warm clima ... (source: - more...)

19/12/2014 - NASA has approved SpaceX’s first Commercial Crew Transportation Capability (CCtCap) milestone. Known as the Certification Baseline Review, the milestone covers SpaceX’s plans for the design, manufacture, integration, launch and recovery of the crewed Dragon – through to her test flight – with the goal of achieving certification to launch NASA astronauts to the International Space Station (ISS). (source: - more...)

18/12/2014 - The Arianespace Soyuz ST-B rocket has launched her mission to loft four O3b communication satellites into orbit on Thursday. The spacecraft are heading to a constellation that is already populated by eight of the birds controlled by O3b Networks. Lift off from the European Spaceport in Kourou, French Guiana occurred at 18:37 UTC. (source: - more...)

18/12/2014 - Russia’s Strela rocket has made a rare appearance and launched the latest Kondor radar imaging satellite for the South African military – following its purchase from NPO Mashinostroyenia. Known as Kondor-E, this spacecraft was launched from silo 59 at Baikonur Cosmodrome s site 175 at 04:43 UTC on Friday. (source: - more...)

18/12/2014 - India successfully launched its biggest ever rocket on Thursday, including an unmanned capsule which could one day send astronauts into space, as the country ramps up its ambitious space programme. The rocket, designed to carry heavier communication and other satellites into higher orbit, blasted off from Sriharikota in the southeast state of Andhra Pradesh. "This was a very significant day in the history of (the) Indian space programme," Indian Space Research Organisation (ISRO) chairman K.S R ... (source: - more...)

17/12/2014 - The next Falcon 9 v1.1 set to launch out of Florida’s Cape Canaveral scrubbed a Static Fire attempt on Tuesday. The Static Fire is required ahead of the upcoming mission to loft the CRS-5/SpX-5 Dragon to the International Space Station (ISS). Unspecified issues with the rocket is likely to slip the launch – as late as early January, although SpaceX isn’t commenting at this stage. (source: - more...)

17/12/2014 - The Indian Space Research Organisation has launched the first test flight of its newest rocket – the GSLV Mk.III – on Thursday, conducting a suborbital flight that also demonstrated a prototype crew capsule (CARE) for India’s proposed manned missions. Liftoff from the Satish Dhawan Space Centre occurred at 09:30 local time (04:00 UTC). (source: - more...)

17/12/2014 - The team responsible for the Sample Analysis at Mars (SAM) instrument suite on NASA's Curiosity rover has made the first definitive detection of organic molecules at Mars. Organic molecules are the building blocks of all known forms of terrestrial life, and consist of a wide variety of molecules made primarily of carbon, hydrogen, and oxygen atoms. However, organic molecules can also be made by chemical reactions that don't involve life, and there is not enough evidence to tell if the matter found ... (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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