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Time Control


International Space
Station - ISS
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: Bright Flare from OAO 1 (Mag. -2) observed on 03/07/2015 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

03/07/2015 - The Soyuz-U carrier rocket with the Russian Progress-M28M cargo spacecraft has been launched from the Baikonur Space Center in Kazakhstan and is headed for the International Space Station (ISS), the Russian Mission Control outside Moscow said. "The estimated time of the transport cargo vessel's separation from the third stage of the launch vehicle and its entering the set orbit is July 3 08:04 Moscow time [05:04 GMT]," a mission control representative said. The Progress cargo vessel will dock wi ... (source: - more...)

03/07/2015 - SpaceX is deep into an internal mishap investigation following the loss during First Stage flight of a Falcon 9 rocket with the CRS-7 Dragon. While the Second Stage is considered to be the main culprit for the failure, investigators are currently gathering data to reconstruct the final moments of Falcon 9’s flight as recovery teams attempt to retrieve the rocket’s remains to further aid the fault tree data. (source: - more...)

02/07/2015 - A Russian Soyuz-U launch vehicle is tasked with lofting the Russian Progress M-28M cargo ship on a critical resupply run to the International Space Station (ISS) – with launch set for 04:55 GMT. The mission will return the Progress to flight following a previous failure that exacerbated the Station’s logistical constraints, further impacted by the recent CRS-7 failure. (source: - more...)
Follow the Launch with live streaming and the Online Tracker

27/06/2015 - SpaceX will launch its eighth Dragon resupply mission to the International Space Station Sunday, carrying cargo to that outpost including a docking adaptor for future manned missions. The first mission to the ISS since the failure of a Russian resupply mission in April, Dragon is scheduled to lift off from Cape Canaveral’s Space Launch Complex 40 at 10:21 local time (14:21 UTC). (source: - more...)

26/06/2015 - SpaceX has conducted a Static Fire of its Falcon 9 v1.1 on Friday, a key milestone ahead of Sunday’s planned launch of the CRS-7/SpX-7 Dragon to the International Space Station (ISS). The mission will help restock the orbital outpost with vital supplies, highlighted by an investigation into high Total Organic Carbon (TOC) levels in the Station’s potable water. (source: - more...)

25/06/2015 - In a paper accepted for publication in the journal Astronomy and Astrophysics, the MIRO team present their first map of water vapour in the coma of Comet 67P/Churyumov-Gerasimenko. MIRO, the Microwave Instrument for the Rosetta Orbiter, first detected the emission from water molecules in the coma of Comet 67P/C-G on 6 June 2014, when Rosetta was 350 000 km from the comet, approximately equivalent to the distance of the Earth from the Moon. At the time, the comet was 3.9 AU - about 580 million km - ... (source: - more...)

23/06/2015 - A Russian Soyuz 2-1B launch vehicle has successfully launched with the third and possibly final Persona-1 reconnaissance satellite – also known as Kvarts – into space on Tuesday. The launch was conducted at 16:44 GMT from launch pad 43/4 at the Plesetsk Cosmodrome in northern Russia under the usual secrecy of a military launch. (source: - more...)

22/06/2015 - Arianespace’s Vega rocket successfully completed her fifth launch, this time lofting the Sentinel-2A satellite – the latest spacecraft in Europe’s series of Earth observation satellites for the Copernicus initiative. Launch took place at 01:52 GMT (Tuesday) from launch pad ELA-1 at Europe’s Spaceport in Kourou, French Guiana – ahead of a smooth 55 minute ride to orbit. (source: - more...)

18/06/2015 - SpaceX’s aspirations towards recovering launched Falcon 9 first stages are continuing to focus on ocean based landings, ahead of realizing the goal of returning the cores back to land. With continual refinements to the approach, SpaceX have welcomed new and improved Autonomous Spaceport Drone Ships (ASDS), one of which has been sighted taking a cruise down the Panama Canal. (source: - more...)

17/06/2015 - An international Earth observation satellite has come to the end of its mission, after the power and attitude control system for the SAC-D spacecraft stopped working. Launched by the United Launch Alliance (ULA) Delta II rocket in 2011, the spacecraft was launched for Argentine space agency, CONAE – but also hosted NASA’s Aquarius instrument, which had achieved all of its primary mission goals late last year. (source: - more...)

15/06/2015 - A long-serving Earth observation satellite has succumb to a fiery demise via an uncontrolled destructive re-entry on Tuesday. The Tropical Rainfall Measuring Mission (TRMM) spacecraft – a joint mission of NASA and JAXA – re-entered Earth’s atmosphere at 03:55 am UTC, according to the US Strategic Command s Joint Functional Component Command for Space. (source: - more...)

14/06/2015 - The European space probe Philae woke up overnight after a months-long sleep as it hurtled towards towards the Sun on the back of a comet, the French space chief said Sunday. "We received new signals from (Philae) for a period of two minutes, as well as 40 seconds' worth of data," Jean-Yves Le Gall, president of the National Centre for Space Studies (CNES), told AFP. "Hello Earth! Can you hear me?" the tiny robot lab tweeted under the hashtag #WakeUpPhilae. Europe launched a new bid in ... (source: - more...)

12/06/2015 - With three years to go until the debut launch of the Space Launch System (SLS), RS-25 engine E0525 conducted its third SLS-related firing this week, part of a test regime that is utilizing colder liquid oxygen temperatures and greater inlet pressures. A family of RS-25s – most of which are veterans from the Space Shuttle Program (SSP) – are preparing for one final role with the monster rocket. (source: - more...)

11/06/2015 - Three astronauts landed in Kazakhstan on Thursday, safely returning to Earth after their flight back home was delayed for a month by a Russian rocket failure. Russia's Anton Shkaplerov, Italy's Samantha Cristoforetti and Terry Virts of the United States landed on schedule on the steppes of Kazakhstan and appeared to be in good health. Both Russian mission control and NASA reported no glitches, but Shkaplerov, the commander of the Soyuz spacecraft, said their landing was "hard and quick." "Fo ... (source: - more...)

09/06/2015 - NASA’s key advisory body has heaped praise on the Agency’s Commercial Crew Program (CCP), claiming the “diversified portfolio” of its two major partners will satisfy the requirements of competition. The Aerospace Safety Advisory Panel (ASAP) believes it will provide a “blessing” to NASA when it faces a future decision of downselecting to one main provider of crew services to the International Space Station. (source: - more...)

08/06/2015 - The International Space Station (ISS) conducted a Pre-Determined Debris Avoidance Maneuver (PDAM) on Monday, dodging part of a spent Minotaur rocket body. The space shove was provided by the engines on the docked Progress M-26M spacecraft, with the burn lasting over five minutes – in turn providing some light entertainment to the Station’s crew. (source: - more...)

05/06/2015 - Russia has launched its Soyuz 2-1A rocket in a surprise mission from the Plesetsk cosmodrome at 15:24 UTC. The launch, using a rocket that recently failed during the Progress M-27M mission, was clouded under secrecy due to its payload, the Kobalt-M spy satellite – rumored to be the final film-return photo reconnaissance spacecraft. (source: - more...)

04/06/2015 - What if your doctor told you that your weight is somewhere between 100 and 400 lbs.? With any ordinary scale every patient can do better at home. Yet, one patient can't: the Milky Way. Even though today we peer deeper into space than ever before, our home galaxy's weight is still unknown to about a factor of four. Researchers at Columbia University's Astronomy Department have now developed a new method to give the Milky Way a more precise physical checkup. The Milky Way consists of roughly 100 bil ... (source: - more...)

04/06/2015 - NASA is exploring a shift toward the development of technologies for In-Situ Resource Utilization (ISRU) – a development that could allow crews to make use of natural resources at their mission destinations – with a focus on crewed missions to Mars – instead of taking all needed supplies with them from Earth. (source: - more...)

03/06/2015 - Chinese scientists are planning to launch a dark matter probe satellite by the end of this year, researchers with the project announced on Friday. The dark matter particle explorer (DAMPE) satellite will observe the direction, energy and electric charge of high-energy particles in space in search of dark matter, said Chang Jin, chief scientist of the project, at a press briefing held by the Shanghai Engineering Center for Microsatellites (SECM). All key components of the satellite have been tested ... (source: - more...)

02/06/2015 - NASA’s Low-Density Supersonic Decelerator (LDSD) project will conduct a second test on Thursday, a major demonstration of technology that is being baselined into NASA’s ambitions for landing payloads on Mars. The test will be carried out at the US Navy’s Pacific Missile Range Facility (PMRF) on Kauai, Hawaii – beginning with a balloon ride to 120,000 feet. (source: - more...)

01/06/2015 - As NASA continues development of its new heavy lift Space Launch System (SLS) rocket, testing of the vehicle s various launch support systems, including the all-important hydrogen burn-off system, or Radial Outward Firing Initiators (ROFIs), continue to progress SLS and its hardware toward a debut launch in 2018. (source: - more...)

30/05/2015 - NASA’s transition from the Space Shuttle to the commercial crew vehicles will dramatically improve crew safety parameters relating to the transportation of astronauts to the International Space Station (ISS). However, preparing for the worst is a necessary requirement that is currently being evaluated by NASA, per presentations to the Aerospace Safety Advisory Panel (ASAP). (source: - more...)

28/05/2015 - The next NASA lander to touch down on the surface of Mars is picking up the pace ahead of its launch on an Atlas V rocket next March. The latest milestones saw the lander deploy its solar arrays inside a Denver clean room at Lockheed Martin, marking the completion of the lander’s assembly as it heads into a rigorous environmental test program. (source: - more...)

28/05/2015 - The second test firing of RS-25 engine 0525 has taken place at the A-1 Test Stand at the Stennis Space Center. The developmental engine – that never got to fly with the Space Shuttle – is paving the way for the first four RS-25 engines that will help push the Space Launch System (SLS) uphill in 2018, with 16 of the engines now available following the construction of a new engine. (source: - more...)

27/05/2015 - Arianespace has lofted another pair of satellites into space on Wednesday, with DirecTV-15 and SKY Mexico-1 set enjoying a ride uphill on the Ariane 5 rocket. Launch from the European Spaceport in Kourou, French Guiana took place at the opening of what was nearly a one and a half hour long launch window, with T-0 occurring at 21:16 UTC. (source: - more...)

26/05/2015 - NASA has selected nine out of 33 proposed instruments for inclusion in a proposed mission to the tantalizing Jovian moon known as Europa. With a primary goal of evaluating if the moon is habitable, the mission is now heading towards a Key Decision Point (KDP) to build towards “formalization”. Launching in the 2020s, the mission may be lofted by the Space Launch System (SLS). (source: - more...)

26/05/2015 - Astronauts aboard the International Space Station (ISS) and their supporting ground teams have begun the process of reconfiguring the station from its current Space Shuttle-optimised configuration, to a new configuration optimised for future visiting commercial crew and cargo vehicles. The long-planned effort involved the relocation of the PMM storage module on Wednesday. (source: - more...)

25/05/2015 - A fleet of Russian spacecraft have completed an extensive search for ground impact points related to the recent failure of the International Launch Services (ILS) Proton rocket. Focusing on the estimated entry point for the Third Stage, Breeze-M Upper Stage and MexSat-1 satellite, Roscosmos said the fleet found no areas of interest, meaning no major hardware survived re-entry. (source: - more...)

23/05/2015 - Physical changes to a number of historic pads located on Florida’s Space Coast are progressing apace, with Cape Canaveral’s SLC-41 now enjoying modification work to prepare it for crewed launches of Boeing’s CST-100. The work is being conducted at the same time as two nearby pads – LC39A and 39B – continue their conversations to host SpaceX’s Falcon Heavy and NASA’s Space Launch System (SLS). (source: - more...)

21/05/2015 - SpaceX’s CRS-6 Dragon unberthed from the International Space Station (ISS) and was released from the grip of the Station’s “Big Arm” on Thursday. The resupply ship then completed homeward leg of her trouble-free orbital adventures, with a splashdown in the Pacific Ocean expected less than six hours after parting ways with the orbital outpost. (source: - more...)

18/05/2015 - The orbit of the International Space Station (ISS) has been successfully reboosted by the Progress M-26M cargo vehicle on Monday, after aborting the first attempt. The initial reboost attempt occurred just hours before an unrelated Proton-M launch failed, as the Russian space agency struggles to overcome a string of failures that included the recent loss of the Progress M-27M vehicle. (source: - more...)

16/05/2015 - International Launch Services (ILS) launched their Russian Proton-M rocket on Saturday, carrying the MexSat-1 (Centenario) communications satellite on what was supposed to be a multi-hour flight to its transfer orbit. Launch from Pad 39 at the Baikonur Cosmodrome in Kazakhstan was nominal, before the ascent suffered a third stage failure resulting in the loss of the mission. (source: - more...)

13/05/2015 - Orbital ATK engineers have concluded a thorough examination of the Qualification Motor -1 (QM-1) following its Static Fire test in March. The motor performed as expected, providing a green light to proceed to the QM-2 Static Fire next spring – the final test that will confirm the five segment boosters are ready to fly with the Space Launch System (SLS). Casting of the QM-2 motor segments will take place over the summer. (source: - more...)

12/05/2015 - The failure of the Progress M-27M cargo run to the International Space Station (ISS) was caused by issues with the Soyuz 2-1A third stage, Roscosmos announced on Tuesday. As expected, the resulting fallout of the failure has resulted in schedule changes on the Station’s arrivals and departures board, with the main impact felt by three crewmembers who will get to enjoy at least another month on the orbital outpost. (source: - more...)

09/05/2015 - Can life survive for billions of years longer than the expected timeline on Earth? As scientists discover older and older solar systems, it's likely that before long we'll find an ancient planet in a habitable zone. Knowing if life is possible on this exoplanet would have immense implications for habitability and the development of ancient life, one researcher says. In January, a group led by Tiago Campante - an astroseismology or "starquake" researcher at the University of Birmingham in the Unite ... (source: - more...)

08/05/2015 - A recent and famous image from deep space marks the first time we've seen a forming planetary system, according to a study by U of T astrophysicists. The team, led by Daniel Tamayo from the Centre for Planetary Science at U of T Scarborough and the Canadian Institute for Theoretical Astrophysics, found that circular gaps in a disk of dust and gas swirling around the young star HL Tau are in fact made by forming planets. "HL Tau likely represents the first image taken of the initial locations of pl ... (source: - more...)

07/05/2015 - The doomed Progress M-27M resupply ship has met its fiery demise on Thursday night, following its problematic launch last week. In reaction to the loss, Russian planners are evaluating changes to the near-term schedule, including a slip of Soyuz TMA-15M landing’s to June 11-12, moving Progress M-28M’s launch up to the beginning of July, while Soyuz TMA-17M launch is likely to be delayed to the middle of July. (source: - more...)

05/05/2015 - SpaceX’s Dragon 2 test vehicle will conduct her maiden flight on Wednesday, leaping off a truss structure under the power of eight SuperDraco engines. Known as the Pad Abort test, the objectives of the flight involve the gathering of key test data to help graduate the vehicle to be ready to carry NASA astronauts to the International Space Station (ISS). (source: - more...)

01/05/2015 - As the Russians continue their evaluations into the failure of the Progress M27-M mission, the resupply vehicle has been spotted passing the International Space Station (ISS). The vehicle – still spinning out of control – is in an orbit that is no threat to the orbital outpost, with the main evaluations now focusing on where the spacecraft will deorbit in the coming days. (source: - more...)

Click here to track PROGRESS online

30/04/2015 - NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft has ended its mission in a dramatic, but planned, event – crashing into the surface of the planet that it had been studying for over four years. “Going out with a bang” the spacecraft impacted with Mercury at nearly 9,000 mph, creating a new crater in the process to leave mark at the end of its lifetime. (source: - more...)

28/04/2015 - A Russian Soyuz 2-1A rocket lofted the latest Progress resupply vehicle (M-27M) for what was supposed to be a fast rendezvous trip to the International Space Station (ISS). The launch of the Progress – riding on a Soyuz 2-1A for the first time – occurred at 07:09 GMT on Tuesday from the Baikonur Cosmodrome in Kazakhstan. However, numerous problems have resulted in what may be a lost vehicle, as it was seen spinning wildly on orbit. (source: - more...)

Click here to track PROGRESS online

27/04/2015 - A new NASA initiative is embracing a team approach to the problem of finding life on planets around other stars. Termed NExSS (NASA Exoplanet System Science), this virtual institute will benefit from the expertise of several dozen scientists in the effort to find clues to life on far-away worlds. Hiroshi Imanaka, a research scientist at the SETI Institute and a specialist in the chemistry of planetary atmospheres, is part of a team recently selected to be part of NExSS. He notes how using a "crowd ... (source: - more...)

27/04/2015 - Making its second launch in less than a fortnight, SpaceX’s Falcon 9 rocket will carry Turkmenistan’s first satellite to orbit Monday evening following a liftoff from Cape Canaveral. The launch, scheduled to take place at 18:14 local time (22:14 UTC), will deploy the Turkmen lem 52E satellite into a geosynchronous transfer orbit. (source: - more...)

26/04/2015 - An Ariane 5 ECA was back in action on Sunday evening, lofting another pair of satellites into space. Thor 7 and SICRAL 2 rode uphill on the Arianespace workhorse out of the European Spaceport in Kourou, French Guiana – lifting off at a T-0 of 20:00 UTC – following a short delay relating to an anomaly early into the initial countdown checks on Friday. (source: - more...)

23/04/2015 - An international team of scientists have put forward a blueprint for a purely space-based system to solve the growing problem of space debris. The proposal, published in Acta Astronautica, combines a super-wide field-of-view telescope, developed by RIKEN's EUSO team, which will be used to detect objects, and a recently developed high-efficiency laser system, the CAN laser that was presented in Nature Photonics in 2013, that will be used to track space debris and remove it from orbit. Space debris, ... (source: - more...)

22/04/2015 - SpaceX has conducted a Static Fire test on the next Falcon 9 rocket set to launch out of Florida, tasked with the lofting of the TurkmenistanSat spacecraft on April 27. SpaceX also passed a Test Readiness Review (TRR) for its Dragon 2 Pad Abort test, which is currently scheduled to take place on May 5. Both events will be conducted from SLC-40 at Cape Canaveral. (source: - more...)

21/04/2015 - In the face of political uncertainty and public apathy, NASA is beginning to push the case for the Asteroid Redirect Mission (ARM). The points of the Agency’s latest overview portray a mission that will foster the development of numerous key technological advances, most of which will be required for human missions to deep space and the ultimate goal of landing astronauts on Mars. (source: - more...)

20/04/2015 - Two more satellites destined for a ride into space have completed assembly ahead of being lofted by Arianespace rockets. Europe’s Sentinel-2A was transported by truck from IABG’s facilities to Munich airport for a Antonov cargo plane ride on Monday night, while Orbital ATK’s SKYM-1 satellite recently arrived at the Kourou spaceport after being assembled four months ahead of schedule. (source: - more...)

19/04/2015 - SpaceX is getting ever closer to successfully returning the first stage of its Falcon 9 v1.1, with the latest attempt showing the effort is now focused on fine-tuning. The return of the first stage used during the CRS-6 Dragon launch was the best landing attempt to date, with a slower than expected throttle valve response parameter cited as the main reason the stage failed to nail its touchdown. (source: - more...)

16/04/2015 - While the internet community continues its fascination with the Falcon 9 First Stage landing attempt on the Autonomous Spaceport Drone Ship (ASDS), SpaceX’s primary mission objective – the CRS-6/SpX-6 Dragon – completed berthing operations with the International Space Station (ISS). The spacecraft was grappled by the Station’s “Big Arm” at 6:55am Eastern on Friday, ahead of being attached to the orbital outpost. (source: - more...)

15/04/2015 - The historic “first weld” of the Exploration Mission -1 (EM-1) Orion is set to take place on May 1 at the Michoud Assembly Facility (MAF) in New Orleans. Building on the experience of the Exploration Flight Test -1 (EFT-1) Orion, this new spacecraft will be constructed for a major test flight on the maiden mission for the Space Launch System (SLS) in 2018. (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)

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Photo credit: Oleg Artemyev


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