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International Space
Station - ISS
North Korean
MKS-4 Satellite
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+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

19/03/2017 - The latest SpaceX Dragon spacecraft is concluding her mission to the International Space Station (ISS). Unberthing of the CRS-10 Dragon from the orbital outpost on Sunday began the critical End Of Mission (EOM) milestones, which will conclude with a splashdown homecoming in the Pacific Ocean. (source: - more...)

18/03/2017 - United Launch Alliance’s first Delta IV launch of 2017 carried a Wideband Global Satcom spacecraft (WGS-9) into orbit Saturday. The lift off from Cape Canaveral Air Force Station occurred at 20:18 local time (00:18 UTC), following a slightly delay related to the Swing Arm system at the pad. (source: - more...)

16/03/2017 - Dextre, Canada’s adventurous robot on the International Space Station (ISS), has – along with his team – been recognized by the Johnson Space Center (JSC) for the work conducted during the crucial task of upgrading the batteries on the orbital outpost. Dextre’s role helped vastly reduce the workload on his human colleagues. (source: - more...)

16/03/2017 - Japan’s H-IIA rocket has lofted the next in a series of new-generation radar imaging satellite for the country’s military. The launch of latest IGS-5 spacecraft lifted off on schedule at 10:20 local time (01:20 UTC) on Friday, setting sail from the first pad of the Tanegashima Space Centre’s Yoshinobu Launch Complex. (source: - more...)

15/03/2017 - SpaceX’s Falcon 9 rocket has conducted its third flight of the year on Thursday, following a scrub due to high winds on Tuesday. The launch carried a commercial communications satellite into geosynchronous transfer orbit. The launch took place from Launch Complex 39A at the Kennedy Space Center in Florida. (source: - more...)

13/03/2017 - Boeing’s Starliner spacecraft is progressing through a series of parachute drop tests, refining the technology for returning the spacecraft back home safely. However, NASA’s safety advisory body has cited certification concerns about a major element for the spacecraft’s ride to space, specifically the RD-180 engine used by the Atlas V launch vehicle. (source: - more...)

10/03/2017 - SpaceX’s CRS-10 resupply mission has enjoyed a smooth period following its somewhat eventful berthing to the Station last month. In the two weeks since the cargo craft arrived… (source: - more...)

09/03/2017 - SpaceX is preparing to launch its second mission from KSC’s Pad 39A, with the expendable Falcon 9 tasked with the EchoStar 23 mission conducting a Static Fire test on Thursday following an issue during Tuesday’s attempt – ultimately slipping the launch date to March 14. Meanwhile, SLC-40 is preparing for a return to operations in August, in turn initiating the second phase of work on 39A for Falcon Heavy. (source: - more...)

09/03/2017 - A major milestone in the build-up to the maiden launch of the Space Launch System has seen the arrival of the Interim Cryogenic Propulsion Stage (ICPS) at Cape Canaveral. Meanwhile, tests are continuing on the umbilicals that will feed this Upper Stage, ahead of joining forces when mated on the Mobile Launcher. (source: - more...)

06/03/2017 - Arianespace’s small launcher, the Vega rocket, has lofted the Sentinel-2B Earth observation satellite on Monday night (local time). Sentinel-2B becomes the fifth satellite launched for Copernicus following its lift off from Europe’s Spaceport in Kourou, French Guiana. The launch was on schedule at 01:49 UTC (Tuesday). (source: - more...)

03/03/2017 - China orbited a small experimental satellite called Tiankun-1 (TK-1), utilizing the Kaituozhe-2 (KT-2) rocket, new launch vehicle. Launched at 23:45 UTC on Thursday from the Jiuquan Launch Center, the new launcher is the latest in a series of solid launcher fueled rockets developed by China that debuted during recent months. (source: - more...)

03/03/2017 - While NASA’s Michoud Assembly Facility (MAF) continues to work through a recovery effort following last month’s tornado, Steve Doering, SLS Stages Element Manager, has provided a recent assessment of the damage. He also overviewed the initial recovery efforts and mitigation work against potential impacts on the core stage production critical paths for the Space Launch System (SLS). (source: - more...)

01/03/2017 - For its second launch of the year, the Atlas V rocket marked its 70th mission to space on Wednesday as the veteran rocket lofted the National Reconnaissance Office s NROL-79 spacecraft to Low Earth Orbit (LEO). Liftoff took place from SLC-3E at Vandenberg Air Force Base, California, at 0950 PST (1750 UTC), the opening of a 40 minute launch window. The mission has been declared a success. (source: - more...)

27/02/2017 - In a hastily arranged announcement, Elon Musk has revealed a plan to launch a Dragon 2 spacecraft on a circumlunar mission, with two paying customers. The launch, which will be conducted by a Falcon Heavy rocket in late 2018, is being seen as a major statement of intent by SpaceX, especially when NASA is conducting a study to launch a similar mission at least a year later. (source: - more...)

26/02/2017 - With Dragon now returned to flight and safely berthed to the ISS, time is ticking closer to the start of commercial crew transportation services to the station. In line with this, NASA s plans for future crew rotations are solidifying, as opportunities have emerged to increase NASA s crew count earlier than planned. (source: - more...)

24/02/2017 - The Russian Federal Space Agency, Roscosmos, launched the Progress MS-05/66P resupply mission on Wednesday morning aboard the final Soyuz-U rocket in history. Liftoff from pad 1/5 at the Baikonur Cosmodrome began a mission that concluded with an orbital rendezvous and docking with the Station on Friday. (source: - more...)

23/02/2017 - After lifting off from historic LC-39A at the Kennedy Space Center, FL, on Sunday morning, SpaceX s Dragon capsule for the SpX-10/CRS-10 mission has successfully completed rendezvous and berthing operations on Thursday, following an abort on Wednesday. The mission is delivering thousands of pounds of supplies, hardware, food, and experiments to the ISS. (source: - more...)

03/02/2017 - Following a highly successful Return To Flight of their newly upgraded Antares 230 series rocket this past October, Orbital ATK is deep into processing for the OA-7 and OA-8 missions that will ferry supplies to the International Space Station this year. Additionally, the company is progressing forward with plans to integrate new upgrades to the Antares, enhancements that should be available by 2019. (source: - more...)

02/02/2017 - The International Space Station (ISS) crew are busy preparing for new Visiting Vehicles, as one departed this week. The Russian Progress MS-03/64P resupply provided a stunning farewell as it conducted a destructive re-entry, while the Station prepares to welcome SpaceX Dragons in the near and long term. (source: - more...)

29/01/2017 - SpaceX has officially announced a mission swap, resulting in the Falcon 9 launch of the CRS-10 Dragon to the International Space Station (ISS) becoming the first mission to set sail from the historic 39A pad at the Kennedy Space Center (KSC). That honor was to have gone to the Echostar 23 mission before Dragon’s priority effectively pulled rank on the manifest. (source: - more...)

27/01/2017 - Japan s HTV-6 cargo vehicle has departed the International Space Station (ISS) on Friday ahead of a fiery plunge back to Earth. The spacecraft performed without issue as it delivered vital supplies both for the crew and the Station itself during its mission, with its final role now involving a cargo of ISS trash – and replaced Station batteries – being disposed of during its destructive re-entry. (source: - more...)

27/01/2017 - The Arianespace Soyuz ST-B rocket has successfully lofted the Hispasat 36W-1 satellite into orbit on Friday. The launch was the first time a Soyuz rocket had launched a GEO spacecraft from the European Spaceport in Kourou, French Guiana. Liftoff occurred at 01:03 UTC on Saturday morning (Friday evening locally). (source: - more...)

25/01/2017 - Boeing has revealed the space suit astronauts will wear on missions aboard the Starliner spacecraft. Formerly known as CST-100, the Boeing spacecraft is one of two commercial crew vehicles that will eventually return a domestic crew launch capability to the United States after years of relying on the Soyuz spacecraft. (source: - more...)

23/01/2017 - Airbus Safran Launchers, which now owns the majority stake in Arianespace, has issued a statement of intent, promoting Ariane 5’s track record as it prepares to enter the production phase of its next-generation launcher, the Ariane 6. The new rocket is set to become operational in 2020. (source: - more...)

23/01/2017 - Japan has conducted the launch of the DSN-2 military communications satellite on Tuesday via its H-IIA rocket. Liftoff from the Tanegashima was on schedule at 16:44 local time (07:44 UTC), which was the opening of a 78-minute launch window. The spacecraft was successfully deployed. (source: - more...)

19/01/2017 - The US Air Force’s third Space-Based Infrared System (SBIRS) geosynchronous missile detection satellite rode to orbit atop United Launch Alliance’s Atlas V rocket on Friday, lifting off from Cape Canaveral Air Force Station, following a scrub of Thursday’s opening attempt. (source: - more...)

17/01/2017 - For the first time on the West Coast, a recovered Falcon 9 first stage has made it back to port, intact. Following its role with the successful launch of ten Iridium NEXT satellites, the booster completed a bullseye return on to the deck of SpaceX’s drone ship, before arriving in the Port of Los Angeles early on Tuesday morning. (source: - more...)

16/01/2017 - In the month and a half since the Progress MS-04 spacecraft was lost in a third-stage launch mishap on 1 December 2016, Russian federal investigators and Roscosmos have narrowed in on the two most probable causes for the third stage failure of the Soyuz-U launch vehicle. The investigation, which has taken longer than Russian officials wanted, has led to two potential causes for the failure – foreign object debris or improper manufacturing of the RD-0110 third stage engine. (source: - more...)

13/01/2017 - SpaceX returned its Falcon 9 rocket to flight Saturday with a mission that delivered ten Iridium NEXT communications satellites into low Earth orbit. Liftoff was on time at 09:54 local time (17:54 UTC) from Vandenberg Air Force Base, California. SpaceX also successfully landed the first stage booster on a drone ship in the Pacific Ocean. (source: - more...)

11/01/2017 - As SpaceX continues its efforts to press forward with Return To Flight later this month, a draft Supplemental Environmental Assessment report for Launch Complex 13 at the Cape Canaveral Air Force Station for construction of two additional landing pads to accommodate the simultaneous return of three core stages of a Falcon Heavy rocket has been released. The report also details the impact of construction of a temporary Dragon processing facility at LC-13 as well. (source: - more...)

10/01/2017 - Japan has scrubbed an experimental launch, using a modified SS-520 sounding rocket to place a CubeSat, TRICOM-1, into low Earth orbit. The mission was expected to lift off from the Uchinoura Space Centre at 08:48 local time (23:48 UTC on Tuesday) and – if successful – will mark a new record for small rocket launch capability. However, the weather was deemed unacceptable for launch. (source: - more...)

09/01/2017 - China orbited three small satellites using the Kuaizhou-1A (KZ-1A) launch vehicle from the Jiuquan Launch Center. The launch was originally scheduled for the last day of 2016. However, the launch was delayed without notice and without specific reasons. (source: - more...)

09/01/2017 - The first fully-welded Space Launch System (SLS) Core Stage propellant tank was recently moved to its proof testing facility at the Michoud Assembly Facility (MAF), to begin final preparations for the first set of tests to begin. The liquid hydrogen (LH2) qualification tank will be a pathfinder for Core Stage prime contractor Boeing and NASA to begin validating the newly-assembled Core Stage hardware, along with the facilities, testing procedures, and analytical models that will help qualify the design and development of the stage for its first flight. (source: - more...)

06/01/2017 - Two astronauts aboard the International Space Station (ISS) have conducted the first spacewalk of a long-planned process to upgrade the power storage batteries outside the station. The upgraded batteries will give the ISS better power storage capacity throughout the rest of its planned lifetime. The spacewalk got underway at 12:23 PM GMT and lasted six hours and 32 minutes. (source: - more...)

05/01/2017 - China kicked off its 2017 campaign with the successful launch of the second Tongxin Jishu Shiyan Weixing (TJSW) spacecraft from the Xichang Satellite Launch Center. Launch took place at 15:18 UTC on Thursday using the Long March-3B/G2 Chang Zheng-3B/G2 (Y39) launch vehicle from the LC2 launch complex. (source: - more...)

03/01/2017 - A year and a half after its historic flyby of dwarf planet Pluto, NASA s New Horizons spacecraft is preparing for its encounter with a second Kuiper Belt Object…. (source: - more...)

02/01/2017 - SpaceX is set to Return To Flight (RTF) as early as Sunday, with the Falcon 9 launch of the first Iridium NEXT mission from Vandenberg Air Force Base in California. SpaceX’s return follows a stand down related to the September loss of the Falcon 9 that was scheduled to launch the Amos-6 satellite during a Static Fire anomaly. (source: - more...)

30/12/2016 - In 2016, our understanding of our cosmic home might have taken its most significant leap forward since the discovery of Uranus shattered our then perception of a six-planet system and expanded the solar system for the first time. This year, in January came the announcement of a mathematical and orbital-characteristic inferred discovery – more a prediction based on evidence – of a massive, super-Earth, ice giant in a 200 x 1,200 AU orbit that, if confirmed, would represent the ninth planet in our solar system. (source: - more...)

27/12/2016 - It was the dominant event in spaceflight last year: New Horizons rapid-paced, intense scientific investigation of the icy, dwarf planet Pluto – the mysterious little world that once bounded the planets of our solar system. This year, New Horizons completed its transmission of all the data it gathered during the Pluto encounter, information that has revealed Pluto to be an even stranger world than our imaginations conjured for so long. (source: - more...)

27/12/2016 - The first Long March 2D to launch from the Taiyuan Satellite Launch Center launched the first pair of a new civilian multi-sensor commercial remote sensing satellite constellation for China. However, the health of the spacecraft – not least their deployed orbit – is currently deemed to be problematic. The launch took place at 03:23 UTC on December 28 from the LC9 launch complex. (source: - more...)

24/12/2016 - Moving out into the asteroid belt and farther still to the gas giants, NASA s Dawn, Juno, and Cassini missions churned away in orbit of their respective hosts – with Dawn continuing an up-close-and-personal investigation of the dwarf planet Ceres, Juno s fantastically accurate arrival at Jupiter but frustratingly crippled start to its science mission, and the beginning of the end for the Cassini mission that s set to end in September 2017. (source: - more...)

22/12/2016 - From the orbits of the inner solar system to the surface of Mars. For Curiosity and Opportunity, 2016 continued the rovers revelations of the mysteries of the Martian surface – providing scientists with confirmation of long-held theories while also revealing surprises about Mars’ geologic past and providing new research for the eventual push of human exploration on the red planet. For Opportunity, the year also marked a continued series of longevity firsts and another mission extension for the rover as it now approaches the start of its 13th year on Mars. (source: - more...)

21/12/2016 - China launched its first minisatellite dedicated to the carbon dioxide detection and monitoring at 15:22 UTC on December 22 using a Long March-2D (Chang Zheng-2D) launch vehicle. Launch of TanSat occurred from the LC43/603 launch complex of the Jiuquan Satellite Launch Center. (source: - more...)

21/12/2016 - Arianespace’s final launch of the year will involve the launch of its Ariane 5 workhorse rocket on Wednesday. The launch vehicle is tasked with lofting the Star One D1 and JCSAT-15 satellites for deployment into geostationary transfer orbit. The launch window opens at 20:30 UTC. (source: - more...)

20/12/2016 - Throughout the inner solar system in 2016, NASA, ESA, JAXA, Roscosmos, and ISRO built upon their prior year successes and demonstrated a coordinated and cooperative approach toward advancing scientific returns from around Earth s immediate neighbors. For these agencies, non-Earth orbital exploration yielded surprising and dramatic changes to our views of the Sun, Venus, the Moon, and Mars via arrivals, discoveries, and cooperative investigations. (source: - more...)

19/12/2016 - Japan’s Epsilon rocket will make its second flight Tuesday, tasked with orbiting JAXA’s ERG satellite to study Earth’s radiation belts. Liftoff from the Uchinoura Space Centre is scheduled for 20:00 local time (11:00 UTC), the opening of an hour-long launch window. (source: - more...)

18/12/2016 - United Launch Alliance launched its last Atlas V rocket of 2016 Sunday, deploying the EchoStar XIX commercial communications satellite for Hughes Network Systems. The launch, from the Cape Canaveral Air Force Station, occurred during a two-hour window at 14:13 Eastern Time (19:13 UTC). (source: - more...)

16/12/2016 - Prime contractor Boeing recently discussed the current progress of assembly and production for the first Core Stage elements of NASA’s Space Launch System (SLS). With assembly of the major structures almost complete, all the different first-time pieces are working their way along parallel paths at the Michoud Assembly Facility (MAF) in New Orleans, Louisiana, as Boeing and NASA choreograph the development and testing work that will put together the first complete new rocket stage next year and certify it for its inaugural flight in late 2018. (source: - more...)

13/12/2016 - On Sunday, December 11, at 9:04 a.m. PST (12:04 p.m. EST, 17:04 UTC) NASA's Juno spacecraft will make its third science flyby of Jupiter. At the time of closest approach (called perijove), Juno will be about 2,580 miles (4,150 kilometers) above the gas giant's roiling cloud tops and traveling at a speed of about 129,000 mph (57.8 kilometers per second) relative to the planet. Seven of Juno's eight science instruments will be energized and collecting data during the flyby. "This will be the f ... (source: - more...)

10/12/2016 - China launched the first of a new generation geosynchronous meteorological satellites on Saturday. The launch of Fengyun-4A satellite took place at 16:11 UTC using the Long March-3B/G2 (Y42) – or Chang Zheng-3B/G2 per its Chinese name – from the LC3 Launch Complex at the Xichang Satellite Launch Center. (source: - more...)

09/12/2016 - XMM-Newton is one of Europe's longest-flying and most productive orbiting observatories, investigating the hot X-ray Universe. Thanks to teamwork and technical innovation, it's on track to keep flying for a long time yet. Launched 17 years ago, ESA's orbiting X-ray telescope has helped scientists around the world to understand some of our Universe's most mysterious events, from what happens in and around black holes to how galaxies formed. At 3800 kg, the 10 m-long XMM-Newton is the biggest scienc ... (source: - more...)

08/12/2016 - In what was the fifth orbital launch of December, the Japanese Aerospace Exploration Agency (JAXA) launched the HTV-6 automated resupply spacecraft for the International Space Station atop their H-IIB rocket. Liftoff from the Tanegashima Space Center occurred at 22:26:47 Japan Standard Time (13:26:47 GMT – 08:26:47 EST) on 9 December, kicking off a four-day rendezvous dance with the ISS. (source: - more...)

07/12/2016 - United Launch Alliance (ULA) has launched a Delta IV rocket on Wednesday evening, carrying the eighth satellite in the US Air Force’s Wideband Global Satcom system. The rocket lifted off with WGS-8 from Cape Canaveral Air Force Station’s SLC-37B pad at 18:52 Eastern Time (23:52 UTC). (source: - more...)

07/12/2016 - NASA's Cassini spacecraft has sent to Earth its first views of Saturn's atmosphere since beginning the latest phase of its mission. The new images show scenes from high above Saturn's northern hemisphere, including the planet's intriguing hexagon-shaped jet stream. Cassini began its new mission phase, called its Ring-Grazing Orbits, on Nov. 30. Each of these weeklong orbits - 20 in all - carries the spacecraft high above Saturn's northern hemisphere before sending it skimming past the outer edges ... (source: - more...)

06/12/2016 - India has launched its Resourcesat-2A imaging satellite on Wednesday morning via its Polar Satellite Launch Vehicle (PSLV) rocket. The ISRO launch, from the Satish Dhawan Space Centre, occurred on schedule at 10:24 India Standard Time (04:54 UTC) from the center’s First Launch Pad. (source: - more...)

05/12/2016 - Arianespace’s Vega rocket successfully launched Turkey s first governmental satellite for Earth observation. The launch of the G kt rk-1A satellite occurred on schedule with a T-0 of 13:51 GMT on Monday, lifting off from launch pad ELA-1 at Europe’s Spaceport in Kourou, French Guiana – ahead of a 57 minute ride to orbit. (source: - more...)

03/12/2016 - Up to 15 orbital launches are set to take place during a very busy December, not counting the opening mission of the month that resulted in the loss of the Progress MS-04 cargo ship that was set to dock with the ISS over the weekend. This month is likely to include the highly anticipated return to flight of SpaceX’s Falcon 9 rocket. (source: - more...)

01/12/2016 - The Russian Federal Space Agency (Roscosmos) launched the Progress MS-04/65P resupply mission to the ISS on Thursday at 09:51:52 EST (14:51:52 UTC). The mission was the third of three Russian resupply flights to Station this year and the first of two missions scheduled to launch to ISS in the opening 9 days of December. However, an anomaly during third stage flight resulted in the loss of the mission. (source: - more...)

30/11/2016 - The United Launch Alliance (ULA) has announced an innovative site called “RocketBuilder” which allows customers – and indeed the public – to build a tailormade rocket for their payload. The site will automatically configure a launch vehicle and provide all the associated costs and benefits. (source: - more...)

30/11/2016 - ESA's new ExoMars orbiter has tested its suite of instruments in orbit for the first time, hinting at a great potential for future observations. The Trace Gas Orbiter, or TGO, a joint endeavour between ESA and Roscosmos, arrived at Mars on 19 October. Its elliptical orbit takes it from 230-310 km above the surface to around 98 000 km every 4.2 days. It spent the last two orbits during 20-28 November testing its four science instruments for the first time since arrival, and making important calibr ... (source: - more...)

29/11/2016 - While a great deal of attention was paid to ISS during its construction phase, the Station – a National Lab of the United States – has been entrenched in its all-important utilization phase for the last five years, hosting thousands of astronomy, astrobiology, and physical and medical sciences experiments. Now, so great is the research demand on Station that the Program is facing a backlog of research and development requests as well as a shortage of crew time for those petitions. (source: - more...)

28/11/2016 - NASA has decided to end operations on the International Space Station Rapid Scatterometer (ISS-RapidScat) Earth science instrument, following attempts to return to life after a power issue. Despite the conclusion of its life, the instrument had already surpassed its original decommissioning date. (source: - more...)

25/11/2016 - The European Space Agency’s fleet of Sentinel satellites are busy checking into urban ground movements, using San Fransico as a case study. Their findings reveal the city’s Millennium Tower skyscraper is slowly sinking. The news comes as a new Sentinel satellite prepares for launch early next year. (source: - more...)

23/11/2016 - As part of the normal review process, NASA has updated the NASA Advisory Council (NAC) on the status of the International Space Station – including its overall health, upcoming visiting vehicle schedule, commercial resupply efforts, and battery deliveries and associated installation EVAs that will upgrade the Station into its next phase of operation and propel its lifetime to 2024. (source: - more...)

22/11/2016 - China orbited its fourth tracking and data relay satellite in the Tianlian-1 range known as ‘Sky Link’ on Tuesday. The launch took place at 15:24 UTC from the Xichang Satellite Launch Center in Sichuan Province, utilizing a Long March 3C/G2 rocket. (source: - more...)

22/11/2016 - In preparation for a December return to launch operations, SpaceX has delivered one Falcon 9 rocket to its Vandenberg launch site, while another undergoes testing at the company’s McGregor test center in Texas. Pending the conclusion of the Amos-6 failure investigation, SpaceX will be primed to launch two missions in December. (source: - more...)

21/11/2016 - After nearly one month at the International Space Station, Orbital ATK s Cygnus OA-5 spacecraft has unberthed for departure operations on Monday morning. The to-date flawless Alan Poindexter Cygnus unberthed from the nadir port of the Unity (Node-1) module and was released from the Station s robotic arm at 08:22 EST. (source: - more...)

19/11/2016 - An Atlas V rocket has successfully deployed a next-generation weather satellite for the US National Oceanic and Atmospheric Administration Saturday evening. The United Launch Alliance (ULA) rocket launched from SLC-41 at Cape Canaveral at the end of a one hour-long window at 18:42 local time (23:42 UTC). (source: - more...)

18/11/2016 - The Chinese spacecraft Shenzhou-11 – and most importantly its crew of two taikonauts – have successfully returned to Earth after China’s longest crewed mission into space. The spacecraft undocked from the Tiangong-2 space module on Thursday, ahead of a Friday touchdown in Mongolia. (source: - more...)

17/11/2016 - Following quick on the heels of the Soyuz MS-02 launch on 19 October, the Russian Federal Space Agency (Roscosmos) has launched the Soyuz MS-03 spacecraft and a new three person crew for Expeditions 50/51 to the International Space Station. The flight launched at 20:20 GMT (15:20 EST) on Thursday 17 November 2016, beginning a two-day orbital rendezvous with the orbital laboratory. (source: - more...)

16/11/2016 - An Ariane 5 ES rocket successfully launched four Galileo satellites from the European Spaceport in Kourou, French Guiana on Thursday. The launch of the FM-12 through FM-14 involved the first use of the Ariane launch vehicle for a Galileo launch, following the previous use of the Soyuz rocket. Launch took place on schedule at 13:06 UTC. (source: - more...)

15/11/2016 - A top level overview at NASA’s Advisory Council (NAC) has shown most of the Space Launch System (SLS) and Orion spacecraft flows are on track for a 2018 launch of Exploration Mission -1 (EM-1). However, engineers are continuing to battle against critical path issues with the European Service Module and flight software. (source: - more...)

14/11/2016 - Citing exceptional and beyond performance expectations on the Return To Flight mission of their Antares rocket during the OA-5 launch of the Cygnus resupply craft to the International Space Station last month, Orbital ATK sat down with to discuss the realignment of the company s upcoming OA-7 mission early next year from Antares to Atlas V – a move that will provide critical upmass capabilities for NASA to the Station. (source: - more...)

11/11/2016 - China launched the first satellite of a new orbital meteorological constellation. The Yunhai-1 (01) was launched at 23:14 UTC by a Long March-2D (Chang Zheng-2D) launch vehicle from the LC43/603 launch complex of the Jiuquan Satellite Launch Center. The launch comes two days after the launch of the second Long March-11 launch vehicle carrying the XPNAV-1 pulsar navigation satellite and other small satellites. (source: - more...)

10/11/2016 - The United Launch Alliance (ULA) Atlas V rocket – interrupted by a wildfire – finally conducted a rare commercial launch on Friday, tasked with orbiting the WorldView-4 Earth-imaging satellite in a mission from Vandenberg Air Force Base, California. The launch was set to take place in September, prior to the standdown. (source: - more...)

09/11/2016 - The Chinese have conducted the second launch of the Long March-11 solid fuel rocket – this time carrying five small satellites into orbit. The launch took place from a mobile launch platform from the Jiuquan satellite Launch Center at 23:42 UTC on Wednesday. (source: - more...)

08/11/2016 - As SpaceX nears completion of its investigation into the AMOS-6 pad conflagration on 1 September 2016, the company is firmly looking toward Return To Flight (RTF) of its Falcon 9 workhorse and realigning its contracted resupply missions to the International Space Station with NASA. With those flights looking to resume in January 2017, SpaceX s external cargo manifest for its next eleven resupply flights is being finalized by the ISS Program. (source: - more...)

07/11/2016 - NASA is continuing to work towards the historic maiden launch of the Space Launch System (SLS), with the rocket still on schedule to make a 2018 debut. However, the passenger – the EM-1 Orion – is requiring the assistance of a working group, specifically focused on the European Service Module (ESM), which continues to struggle with schedule issues. (source: - more...)

04/11/2016 - With booster casting operations for SLS s EM-1 mission well underway at Orbital ATK s manufacturing facility in Utah, the company is looking ahead in terms of how the boosters … (source: - more...)

02/11/2016 - China has successfully conducted the maiden launch of its Long March-5 (Chang Zheng-5) rocket on Thursday, after years of intense development to create a launch vehicle capable of orbiting heavy payload to geosynchronous and low Earth orbit. The launch occurred at 12:43 UTC on Thursday after several holds. (source: - more...)

01/11/2016 - Japan has launched the Himawari 9 weather satellite on Wednesday afternoon local time, with the aid of its H-IIA rocket. Liftoff from the Tanegashima Space Centre, in Japan’s Osumi Islands, was on schedule at 15:20 local time (06:20 UTC), which was the opening of an available window of two-hour, 58-minutes. (source: - more...)

31/10/2016 - As SpaceX narrows on a second stage COPV (Composite Overwrapped Pressure Vessel) as the cause of the AMOS-6 static fire pad failure on 1 September, the company is pressing ahead with hot fire operations on a new first stages at its McGregor, Texas, facility. The new booster is set to power what SpaceX hopes will be a December mission from the soon-to-be-christened LC-39A at the Kennedy Space Center in Florida. (source: - more...)

29/10/2016 - Under the command of Russian cosmonaut Anatoly Ivanishin, Soyuz MS-01 undocked from the ISS on Saturday. With NASA astronaut Kate Rubins and Japanese astronaut Takuya Onishi onboard, the trio successfully landed on the steppes of Kazakhstan at 11:59 p.m Eastern. (source: - more...)

28/10/2016 - NASA’s monster rocket will evolve into an even larger vehicle early in her lifetime, as the Block 1 rocket grows into the workhorse known as the Block 1B. With a large increase in capability – and height – the Block 1B will require a revamp of numerous elements of the KSC ground systems, ranging from major changes to the new Mobile Launcher, through to need for a new LH2 storage sphere at the pad. (source: - more...)

26/10/2016 - An investigation into the water leak in Tim Kopra’s Extravehicular Mobility Unit (EMU) – which forced the early termination of EVA-35 in January – has revealed no hardware issues with the suit. The news comes as the ISS gears up for a series of critical EVAs that will replace the batteries on the Station’s solar arrays. (source: - more...)

23/10/2016 - Orbital ATK’s latest Cygnus resupply ship completed rendezvous and capture operations with the International Space Station (ISS) on Sunday morning. The OA-5 Cygnus – packed with equipment and supplies for the crew of the orbital outpost – had to wait her turn to arrive, allowing for the docking of the Soyuz MS-02 spacecraft on Friday. (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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