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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

20/10/2016 - Europe's second attempt at reaching the Mars surface appeared in peril Thursday as initial analysis suggested a lander dubbed "Schiaparelli", a test-run for a future rover, may have plummeted to its demise. While holding out faint hope, ground controllers said it seemed the paddling pool-sized lander's parachute may have been discarded too early, and its fall-breaking thrusters switched off too soon. Schiaparelli fell silent seconds before its scheduled touchdown, while its mothership Trace Gas ... (source: - more...)

19/10/2016 - After a seven month cruise between worlds, ESA and Russia’s Trace Gas Orbiter (TGO) and the Italian Space Agency s Schiaparelli lander arrived for their crucial orbit insertion burn (TGO) and landing (Schiaparelli) on Mars. Schiaparelli s trip to the surface gained a large amount of data, but likely suffered a crash landing. However, TGO’s Mars Orbit Insertion was successfully completed. (source: - more...)

18/10/2016 - The Chinese spacecraft Shenzhou-11 – and its crew of two taikonauts – has successfully docked with the Tiangong-2 space module at 19:24 UTC. The docking begins a month long mission in which the crew will conduct a series of experiments aimed at progressing China’s ambitions in space. (source: - more...)

18/10/2016 - After nearly a month long delay to fix a technical issue with the spacecraft, the Russian Federal Space Agency s Soyuz MS-02 human-rated spacecraft was launched three new crew members for Expedition 49/50 crews to the International Space Station on Wednesday. The launch, via a Soyuz FG, occurred at 08:05 GMT (04:05 EDT) on October 19 to kick off a two-day orbital rendezvous with the Station. (source: - more...)

17/10/2016 - Orbital ATK’s Antares rocket returned to flight in a new configuration on Monday, two years after its previous mission ended in an explosion seconds after liftoff. Monday’s launch took place from the Mid-Atlantic Regional Spaceport on Wallops Island, Virginia – at the end of a five-minute window at 19:45 EDT (23:45 UTC). (source: - more...)

16/10/2016 - Following weeks of secrecy, China has launched its sixth crewed space mission on Sunday. The launch of Jing Haipeng and Chen Dong on Shenzhou-11 took place at 23:30… (source: - more...)

13/10/2016 - After months of speculation into changes relating to the OML (Outer Mold Line) for the Atlas V and Starliner design, United Launch Alliance (ULA) and Boeing finally revealed an updated aerodynamic configuration that provides an aeroskirt aft of the spacecraft to counter loads margins and return the stresses on the stack into acceptable flight levels. (source: - more...)

12/10/2016 - International Launch Services (ILS) is continuing to plan out its future manifest by announcing two new missions via the signing of launch services contracts. The missions both involve EUTELSAT birds, via the first use of a first commercial contract incorporating the use of the newly announced Proton Medium rocket and the first commercial shared launch using a Proton Breeze M with the EUTELSAT 5 West B satellite and MEV-1. (source: - more...)

11/10/2016 - When NASA’s next Mars rover – Mars 2020 – arrives at the red planet in four years, it will sport a new and upgraded vision to aide its… (source: - more...)

10/10/2016 - The next Cygnus spacecraft is currently undergoing final processing with her Antares launch vehicle, a key milestone ahead of the upcoming launch to the International Space Station (ISS), which is now set to take place on Friday. The OA-5 mission will mark the first time the extended Cygnus spacecraft has flown with the upgraded Antares and the Castor 30XL Upper Stage. (source: - more...)

06/10/2016 - Numerous launch facilities at the Kennedy Space Center (KSC) and Cape Canaveral were braced for impact from what became a Category 3 hurricane. The facilities were evacuated of personnel apart from a brave rideout crew team holding station at the famous launch center. Although the storm passed east of the Cape, damage is currently assessed now the storm has cleared. (source: - more...)

05/10/2016 - Blue Origin has conducted the fifth flight of the same reusable straight up/straight down suborbital rocket booster on Wednesday in a test that allows the company to validate in-flight performance of its new pusher abort system for the New Shepard capsule. The flight involved a pre-planned abort scheduled for 45 seconds into flight at an altitude of 16,000 feet and unexpectedly saw the booster safely return. (source: - more...)

04/10/2016 - Ariane 5 will continue Arianespace’s busy 2016 pace with her fifth launch of the year via the lofting of the Sky Muster II and GSAT-18 communication satellites on what is now expected to be Wednesday. The launch – from the European Spaceport in Kourou – is set to take place within a 1 hour 15-minute launch window that opens at 20:30 UTC after high winds postponed Tuesday’s attempt. (source: - more...)

03/10/2016 - With the spaceflight community still in awe at the unveiling of the Interplanetary Transport System (ITS), SpaceX has set itself some lofty long-term goals. However, while the realization of the plan is up for debate, the presentation has at least revealed some of the key specifications of the system, not least the Raptor engine. (source: - more...)

29/09/2016 - After more than 12 years in space and two years at comet 67P, the European Space Agency has said goodbye to its historic Rosetta spacecraft. The first craft to enter orbit of a comet and deploy the first probe to land on a comet, Rosetta and its Philae lander greatly improved humanity s understanding of comets, their environments, and the conditions under which the solar system initially formed. (source: - more...)

28/09/2016 - Following the highly successful test firing of the Qualification Motor 2 (QM-2) at their proving grounds near Promontory, Utah, Orbital ATK is preparing for the second half of casting operations for the Solid Rocket Booster segments that will power the SLS EM-1 mission through the first two minutes of flight – while at the same time working through a minor issue that is not expected to affect SLS SRB production timelines. (source: - more...)

27/09/2016 - SpaceX’s Elon Musk has made his landmark speech, finally revealing details of his plans to make humanity a multiplanetary species. In a keynote speech at the International Astronautical Congress in Guadalajara, Mexico, Musk outlined a monster rocket and huge spacecraft capable of transporting at least 100 people to Mars – a planet Musk appears to have ambitions of terraforming. (source: - more...)

26/09/2016 - NASA has confirmed statistically significant evidence from the Hubble Space Telescope indicating the presence of salty watery ejecta plumes from the Jovian moon Europa. The announcement lends further… (source: - more...)

25/09/2016 - ISRO’s Polar Satellite Launch Vehicle (PSLV) has successfully deployed the SCATSAT-1 ocean research satellite as part of an eight-satellite payload due to launch from the Satish Dhawan Space Centre early on Monday. Liftoff of the Indian rocket was on schedule at 09:12 local time (03:42 UTC). (source: - more...)

22/09/2016 - Following the successful launch of Tiangong-2 space module earlier this month, China is now gearing up for the launch of its next crewed space mission, Shenzhou-11. The next… (source: - more...)

22/09/2016 - Several days after its launch, China's Tiangong 2 space laboratory seems to be working well. The uncrewed module has made engine burns and orbital changes, demonstrating its capabilities. China is making reassuring statements about its performance. Tiangong has clearly passed over the challenges of early failure syndrome, which sometimes cripples spacecraft shortly after launch. At this stage, there are probably more tests to be performed on the module, but it seems to be passing every task. ... (source: - more...)

21/09/2016 - The effort to certify the Space Launch System RS-25 engines for the first launch will soon reach a critical milestone with the delivery of the first flight model engine controller unit (ECU). NASA is planning to finish its first-flight certification program next year, culminating in the planned shipment of the four flight engines to the Core Stage assembly facility in New Orleans by next Spring. (source: - more...)

20/09/2016 - Sixty-five years ago, the United States Air Force conducted a pivotal – and what turned out to be groundbreaking – flight of their Aerobee sounding rocket at Holloman Air Force Base in New Mexico. The flight, with one monkey and 11 mice, became the Western Hemisphere’s proof of concept that animals could survive all elements of rocket flight – including landing. (source: - more...)

19/09/2016 - As part of its transition to the powerful Block 1B variant of the Space Launch System (SLS) with the Exploration Upper Stage (EUS), NASA is working on a device called the Universal Stage Adaptor (USA). This adaptor will help connect the large EUS to the Orion spacecraft while accommodating the massive payloads SLS is intended to carry to destinations beyond Low Earth Orbit. (source: - more...)

19/09/2016 - NASA s Interface Region Imaging Spectrograph (IRIS) satellite has been provided with a mission extension via a $19 million award from the Agency. The extension will also provide additional involvement for IRIS, with Chilean cooperation and more collaborative observations with observatories in California and Europe. (source: - more...)

16/09/2016 - The United Launch Alliance (ULA) Atlas V rocket scrubbed an attempt to conduct a rare commercial launch on Friday, tasked with orbiting the WorldView-4 Earth-imaging satellite in a mission from Vandenberg Air Force Base, California. Launch was then expected to take place during a fourteen-minute window on Sunday. However, that attempt has been scrubbed due to wild fires in the area. (source: - more...)

15/09/2016 - Arianespace were in action on Thursday, with the launch of a Vega rocket from the Guiana Space Center in Kourou, French Guiana, carrying the Peru Sat-1 and SkySats 4, 5, 6, and 7. Liftoff was on schedule at 01:43:35 UTC on 16 September (21:43:35 EDT on 15 September) with the nearly all solid fueled Vega making its seventh trip to space. (source: - more...)

14/09/2016 - China took another step on its long march to a permanent orbital outpost with the launch of the Tiangong-2 orbital module from the Jiuquan Satellite Launch Center. The launch, conducted by a Long March 2F – took place at 14:04 UTC from the 921 Launch Pad of the LC43 Launch Complex. The new orbital outpost will enable the crews to remain in orbit for 30-day missions. (source: - more...)

13/09/2016 - With work continuing on a lengthy project to convert the Mobile Launcher (ML) for use with the Space Launch System (SLS), a NASA manager has spoken about the challenges of preparing the huge structure for the rocket’s undefined manifest. The hope of SLS involvement with a mission to Europa included considerations for a second ML. However, the confirmed path for ML to undergo another major modification period after just EM-1. (source: - more...)

13/09/2016 - Israel launched its Shavit rocket for the first time since 2014 on Tuesday, carrying an Ofek reconnaissance satellite into low Earth orbit. However, while Israel confirmed the satellite has reached orbit, officials soon cited unspecified problems with the spacecraft during the checkout period post-launch. (source: - more...)

12/09/2016 - Years in the making, but finally revealed on Monday, Blue Origin’s New Glenn rocket has been shown for the first time via its founder Jeff Bezos. Arriving in two variants, the new – and surprisingly powerful – orbital rocket is scheduled to debut from Cape Canaveral’s SLC-36 by the end of the decade. Like its suborbital sister – the New Shepard – its booster stage will be reusable. (source: - more...)

11/09/2016 - September 15 marks the opening of the launch window for China's Tiangong 2 space laboratory. It will also probably be the actual launch date. The launch window extends to September 20, but China has no good reason to delay the launch of Tiangong any later than necessary. (source: - more...)

09/09/2016 - Following the loss of its Falcon 9 rocket during a static fire test, SpaceX is deep into a failure investigation process, which includes an assessment of the damage suffered by SLC-40 at the Cape Canaveral. With that pad likely to be out of action for some time, SpaceX is turning its attention next door, to the historic launch Pad 39A at the Kennedy Space Center as the site from which east coast Falcon 9 missions are expected to resume. (source: - more...)

08/09/2016 - NASA’s OSIRIS-REx spacecraft has began a seven-year round trip to the asteroid Bennu on Thursday, beginning its journey via a launch aboard the United Launch Alliance (ULA) Atlas V. Liftoff from SLC-41 at the Cape Canaveral Air Force Station was on time, at the start of a 115-minute window that opened at 19:05 local time (23:05 UTC). (source: - more...)

07/09/2016 - The Return To Flight (RTF) of Orbital ATK’s Antares rocket is currently waiting on a launch date decision, following resolution work after May’s Static Fire test. The launch, expected to take place in the next four or five weeks, will task Antares with lofting the OA-5 Cygnus en route to a berthing slot in the International Space Station’s increasingly convoluted Visiting Vehicle schedule. (source: - more...)

07/09/2016 - India’s Geosynchronous Satellite Launch Vehicle (GSLV) has successfully deployed the INSAT 3DR satellite on Thursday morning. The Indian Space Research Organisation (ISRO) launch – the first for the GSLV in over a year – occurred 30 minutes later than scheduled, at 11:10 UTC, launching from the Satish Dhawan Space Centre on Sriharikota Island. (source: - more...)

06/09/2016 - The Russian Soyuz TMA-20M spacecraft has returned Expedition 48 Commander Jeff Williams, along with Soyuz Commander Alexey Ovchinin and Flight Engineer Oleg Skripochka of Roscosmos, to Earth on Tuesday. The spacecraft successfully undocked from the International Space Station at 21:51 UTC, before successfully landing on the steppes of Kazakhstan at 01:13 UTC. (source: - more...)

05/09/2016 - The NASA and contractor workforce at Stennis Space Center are nearing completion of structural work on the B-2 test stand that will be used for the Green Run test of the Space Launch System (SLS) Core Stage before its first flight. In addition to SLS Core Stage testing, planning is now also underway for the stand to support a similar “green run” test of the Exploration Upper Stage (EUS). (source: - more...)

03/09/2016 - The Juno spacecraft has beamed back stunning images from its recent – and closest – approach to Jupiter, swinging to within 4,200 km (~2,610 miles) of the largest planet in our solar system. The approach sets the stage for the primary aspect of Juno s science mission – an extended, polar orbit survey the Jovian giant to help us better understand Jupiter and aspects of outer solar system development. (source: - more...)

02/09/2016 - Southwest China's Guizhou Province has started to move 8,000 people from their homes to make way for the world's largest radio telescope which will be completed in September, local authorities said Wednesday. The people being moved out are from eight villages in Pingtang County, of Qiannan Buyi and Miao autonomous prefecture. With a dish the size of 30 football grounds, FAST, the Five hundred meter, Aperture Spherical Telescope, is made of 4,450 panels. Scientists have depicted it as a super ... (source: - more...)

02/09/2016 - China will make another big step in its manned space program with the launch of a new orbital laboratory and a new manned space mission in the next two months. The launch of the Tiangong-2 space station is expected to take place on September 15 via the use of a Chang Zheng (Long March) 2F/T2 rocket. (source: - more...)

01/09/2016 - China has unofficially suffered its first failure of the year during the attempt to launch the Gaofen-10 remote sensing satellite from the Taiyuan Satellite Launch Center on Wednesday. Launching from the LC9 Launch Complex at around 18:53 UTC, the Long March-4C (Chang Zheng-4C) failied for reasons not yet known. (source: - more...)

01/09/2016 - Two astronauts aboard the International Space Station (ISS) have completed a spacewalk that successfully stowed a now unused spare radiator and also installed the first two hardware elements of a new system of external HD television cameras. The spacewalk (EVA-37) got underway at 11:53 PM UTC, and lasted 6 hours and 48 minutes. (source: - more...)

01/09/2016 - SpaceX has suffered a failure during the static test fire of the Falcon 9 rocket that was to help haul the AMOS-6 satellite to geostationary orbit later this week. The rocket suffered an unspecified failure in the second stage’s LOX tank during the test early on Thursday. Fire crews are currently putting out fires at the SLC-40 pad location. (source: - more...)

01/09/2016 - A minuscule particle of orbital debris or a pebble of space rock struck Europe’s Sentinel 1A radar imaging satellite Aug. 23, officials said Wednesday, leaving an imprint nearly twice the size of a basketball on one of the spacecraft’s solar panels. The high-speed impact caused no major problems for the Earth observation satellite, which continues to operate normally. But ground controllers noticed a “sudden” small reduction in the power generated by one of Sentinel 1A’s solar arrays (source: - more...)

Track Sentinel 1A

31/08/2016 - The launch of SES-10, which will be the first satellite sent into space on a SpaceX flight-proven rocket, was scheduled for the fourth quarter of 2016. Terms of the deal were not announced. Officials with California-based SpaceX, headed by Internet entrepreneur Elon Musk, had previously indicated that reusing rockets could cut launch costs ... (source: - more...)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Visual SAT-Flare Tracker 3D - Online

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

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

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

Earth Map Legend

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

Full Screen

Photo credit: Oleg Artemyev


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