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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

10/02/2016 - The first-ever detection of gravitational waves, which scientists could announce Thursday, would open a new window on the universe and its most violent phenomena. Scientists will hold a press conference Thursday to discuss the latest in their hunt for these waves, whose existence Albert Einstein predicted in his theory of general relativity 100 years ago, according to a statement from the National Science Foundation, which has funded the research. Scientists from the California Institute of ... (source: - more...)

09/02/2016 - United Launch Alliance’s Delta IV rocket is set to launch with the NROL-45 payload for the US National Reconnaissance Office on Wednesday morning. Liftoff, from Vandenberg Air Force Base in California, is scheduled for a window opening at 03:39 local time (11:39 UTC). (source: - more...)

08/02/2016 - Two SpaceX missions have received preliminary planning dates for their upcoming launches out of Cape Canaveral. The Falcon 9 launch with the SES-9 satellite is now aiming for a February 24 liftoff from SLC-40, while the Dragon spacecraft is set to return to action NET (No Earlier Than) April 1 for her CRS-8 mission to the International Space Station (ISS). (source: - more...)

06/02/2016 - A Russian Soyuz 2-1B has launched a GLONASS-M Global Navigation satellite from the Plesetsk Cosmodrome. Launch occurred from Pad 43/4 at the spaceport, with T-0 reported as 00:21 UTC on Sunday. This spacecraft is intended to replace Cosmos 2419, which was launched in 2005. (source: - more...)

04/02/2016 - United Launch Alliance successfully launched its Atlas V carrying the twelfth and final Block IIF GPS satellite Friday. Flying from Cape Canaveral, the rocket lifted off – despite weather-related challenges during the countdown – with her GPS IIF-12 spacecraft at 08:38 local time (13:38 UTC), the opening of what was a nineteen-minute window. (source: - more...)

03/02/2016 - Expedition 46 duo Yuri Malenchenko and Sergey Volkov have completed a highly successful Russian EVA-42 on Wednesday, involving the deployment and retrieval of several experiment packages on the Zvezda and Poisk modules. Meanwhile, officials continue to investigate last month’s EVA, which was terminated early after water entered the helmet of Tim Kopra. (source: - more...)

01/02/2016 - One of the major milestones for Exploration Mission -1 (EM-1) was completed on Monday with the arrival of Orion’s Pressure Vessel at the launch site. The capsule hardware was constructed at the Michoud Assembly Facility (MAF) in New Orleans ahead of a trip on a NASA Super Guppy aircraft to the Shuttle Landing Facility (SLF). (source: - more...)

29/01/2016 - The U.S. Congress is debating the reinstatement of a purchasing ban on Russian RD-180 engines – the heart of the Atlas V core stage. Congress lifted that ban in… (source: - more...)

29/01/2016 - International Launch Services (ILS) successfully utilized its Proton M rocket to launch the Eutelsat-9B communications satellite on a multi-hour flight to its transfer orbit. The satellite includes a hosted Data Relay System payload for the European Space Agency. Launch from the Baikonur Cosmodrome in Kazakhstan was on schedule at 22:20 UTC on Friday. (source: - more...)

28/01/2016 - Today marks the 30th anniversary of the loss of the Space Shuttle Challenger and her seven crewmembers in the skies over Florida. As the world memorializes the tragic event of January 28, 1986, we pause to honor the Challenger crew and the reasons they chose to fly aboard Challenger thirty year ago today. (source: - more...)

27/01/2016 - New Year's Day, 1801, the dawn of the 19th century, was a historic moment for astronomy, and for a space mission called Dawn more than 200 years later. That night, Giuseppe Piazzi pointed his telescope at the sky and observed a distant object that we now know as Ceres. Today, NASA's Dawn mission allows us to see Ceres in exquisite detail. From the images Dawn has taken over the past year, we know Ceres is a heavily cratered body with diverse features on its surface that include a tall, cone-shaped ... (source: - more...)

26/01/2016 - RS-25 Engine 2059 – a veteran of five Shuttle missions – is scheduled to begin static fire testing at the end of February, initiating a test series on the engines that will be tasked with launching the Space Launch System (SLS). Meanwhile, Aerojet Rocketdyne explained some of the cost saving processes for the new expendable RS-25s that will fly with SLS in the second half of the 2020s. (source: - more...)

25/01/2016 - The NPOESS Preparatory Project (Suomi) and the Landsat-8 satellites have been keeping a close eye on the major snowstorm that impacted millions of Americans over the weekend. NPP provided the stunning overhead images of the huge blanket of snow that covered the East Coast, while Landsat-8 took detailed photos of snow covered cities. (source: - more...)

22/01/2016 - Blue Origin achieved another milestone on Friday, successfully flying – and landing – the New Shepard rocket in a reuse test. The rocket had previously flown – and landed – back in November. The launch, land and repeat success is part of Blue Origin’s reusability foundation for its suborbital space tourism goals in tandem with the development of an orbital vehicle. (source: - more...)

21/01/2016 - Orbital ATK managers have finalized their procedures related to the newly upgraded Antares launch vehicle in readiness for upcoming missions to help deliver their Cygnus spacecraft on resupply runs to the International Space Station (ISS). The new Antares required a reworking of how to prepare the rocket for launch, such as moving away from sub-cooled liquid oxygen through to changes to the vehicle avionics and software. (source: - more...)

19/01/2016 - How much we weigh on a planet depends on its surface gravity. Gravity is an important parameter for stars as well, and changes drastically over the course of a star's lifetime, providing information on its age and stage of evolution. Since the stars in the night sky appear only as small spots of light, this value is very difficult to measure. A team of scientists from the Max Planck Institute for Solar System Research in Gottingen, the University of Vienna and from Canada, France and Australia hav ... (source: - more...)

17/01/2016 - SpaceX launched an international ocean research mission Sunday via its Falcon 9 rocket, the final F9 to fly in the v1.1 configuration. Flying from Vandenberg Air Force Base, the rocket lifted off with the Jason-3 spacecraft from Space Launch Complex 4E at 10:42 local time (18:42 UTC). The attempt to land the first stage on the ASDS in the Pacific Ocean was unsuccessful. (source: - more...)

15/01/2016 - The moon's far hemisphere is never directly visible from Earth and while it has been photographed, with the first images appearing in 1959, it has never been explored. China's Chang'e-4 probe - named for the goddess of the moon in Chinese mythology - will be sent to it in 2018, the official Xinhua news agency reported. "The Chang'e-4's lander and ... (source: - more...)

15/01/2016 - Machine-learning technology developed at Los Alamos National Laboratory played a key role in the discovery of supernova ASASSN-15lh, an exceptionally powerful explosion that was 570 billion times brighter than the Sun and more than twice as luminous as the previous record-holding supernova. This extraordinary event marking the death of a star was identified by the All Sky Automated Survey for SuperNovae (ASAS-SN) and is described in a new study published in Science. "This is a golden age for study ... (source: - more...)

15/01/2016 - A pair of astronauts aboard the International Space Station (ISS) conducted a shortened spacewalk to replace a failed electrical component, in order to restore the station to its full power generation capacity. The spacewalk was the first ever to be conducted by a British astronaut, marking a historic moment for the UK s space program. However, due to water in Tim Kopra’s helmet, the EVA was terminated early. (source: - more...)

14/01/2016 - Observations made shortly after Rosetta's arrival at its target comet in 2014 have provided definitive confirmation of the presence of water ice. Although water vapour is the main gas seen flowing from comet 67P/Churyumov-Gerasimenko, the great majority of ice is believed to come from under the comet's crust, and very few examples of exposed water ice have been found on the surface. However, a detailed analysis by Rosetta's VIRTIS infrared instrument reveals the composition of the comet's topmost ... (source: - more...)

12/01/2016 - An “All-Hands” style meeting was held in the Vehicle Assembly Building (VAB) at the Kennedy Space Center (KSC) on Monday, overviewing the spaceport’s current and future initiatives. During the meeting, NASA leaders admitted continuing funding issues meant the Space Launch System (SLS) is still trying to work a manifest plan, with further uncertainty portrayed as to when a crewed mission will debut on the monster rocket. (source: - more...)

08/01/2016 - A student-built experiment aboard NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission has been integrated onto the spacecraft. The Regolith X-ray Imaging Spectrometer (REXIS) will determine elemental abundances on the surface of asteroid Bennu, complementing the mineral and chemical mapping capabilities provided by two other instruments on the spacecraft. "The students worked incredibly hard to get to this point," said Mike Donnel ... (source: - more...)

08/01/2016 - SpaceX is preparing its Falcon 9 rocket for a static fire on Monday at the company’s west coast launch facility at Vandenberg Air Force Base, California. The Jason-3… (source: - more...)

06/01/2016 - Boeing and United Launch Alliance (ULA) are continuing preparations ahead of Atlas V launches with the Starliner spacecraft. Formerly known as the CST-100, the spacecraft is scheduled to begin test flights next year, with progress towards that milestone visible at the launch pad and in the processing facilities – but also on the paperwork, with launch processing requirements now revealing a “dry test” ahead of launch. (source: - more...)

05/01/2016 - NASA has issued a lengthy explanation behind the decision to contract Aerojet Rocketdyne to restart production of the RS-25 engine, mainly centering on the claim it is less expensive – and safer – than developing a new engine. Six new RS-25s will compliment the existing stock of 16 engines, allowing the Space Launch System (SLS) to have enough engines through to her fifth flight. (source: - more...)

03/01/2016 - While the OA-4 Cygnus enjoys the berthed phase of her mission, Orbital ATK managers are already deep into parallel planning work with the Cygnus cargo resupply flight. The OA-6 Cygnus will also fly on the United Launch Alliance Atlas V, ahead of the company’s long-awaited transition back to its own upgraded Antares rocket. (source: - more...)

31/12/2015 - For the two commercial companies contracted with NASA for cargo resupply of the International Space Station, 2015 could have been a year marked entirely by the risk that eventually… (source: - more...)

29/12/2015 - With the abundance of discoveries in planetary science this year, none was truly more important to the future of human exploration of other planets than the long-awaited confirmation… (source: - more...)

28/12/2015 - Russian President Vladimir Putin has signed a decree on dissolving the country's Federal Space Agency in line with the creation of Roscosmos state corporation, the Kremlin press service said Monday. The agency will be dissolved in accordance with a federal law of July 13, 2015, according to the presidential decree, published on Kremlin's official website. The decree comes into force on January 1, 2016. Under the decree, the Russian government is due to ensure the continuity of the agen ... (source: - more...)

28/12/2015 - The Chinese have closed out the year with the launch of its Long March 3B/G2 rocket. The launch involved the orbiting of a geostationary remote sensing bird, known as Gaofen-4 (GF-4). It was launched from the Xichang Satellite Launch Center at 16:05 UTC. (source: - more...)

27/12/2015 - Year 2015 was yet another banner stretch for planetary exploration. The year saw the farewell of NASA s MESSENGER spacecraft at Mercury, the delayed arrival of JAXA s Akatsuki at… (source: - more...)

25/12/2015 - Speaking to a St. Louis audience in September, Pam Melroy outlined the next space revolution, adding that it will happen in geosynchronous orbit. "What if you could build a satellite up there in GEO?" she asked. "What if you can repair it? What if you could upgrade it with the latest electronics?" Perhaps fittingly, her talk at the Defense Advanced Projects Research Agency's "Wait? What?" symposium, was entitled "Port of Call at 36,000 KM." Melroy, who as a NASA astronaut piloted two space s ... (source: - more...)

24/12/2015 - When the Sun shines into the Occator crater on the surface of the dwarf planet Ceres, a kind of thin haze appears above its brightest spot. This can be seen in images taken by the camera system aboard NASA's Dawn space probe, which researchers under the lead of the Max Planck Institute for Solar System Research published on 9 December, 2015 in Nature magazine. The haze indicates that frozen water may exist near the surface . The bright spots in the Occator crater likely contain magnesium sulphates ... (source: - more...)

24/12/2015 - In 2013, Chang'e-3, an unmanned lunar mission, touched down on the northern part of the Imbrium basin, one of the most prominent of the lava-filled impact basins visible from Earth. It was a beautiful landing site, said Bradley L. Jolliff, PhD, the Scott Rudolph Professor of Earth and Planetary Sciences at Washington University in St. Louis, who is a participant in an educational collaboration that helped analyze Chang'e-3 mission data. The lander touched down on a smooth flood basalt plain next t ... (source: - more...)

24/12/2015 - Space exploration in 2015 was an unprecedented series of firsts and major achievements. But for NASA and the world’s space communities, nothing quite captured the spirit and excitement… (source: - more...)

21/12/2015 - The first of the upgraded Russian Progress resupply vehicles has launched atop the Soyuz 2-1A from the Baikonur Cosmodrome in Kazakhstan on Monday at 08:44 UTC. The Progress 62 (Progress MS 431) spacecraft will deliver 2.5 tons of cargo, including dry cargo, propellant, water and compressed oxygen – with docking expected to take place on Wednesday. (source: - more...)

20/12/2015 - International Space Station (ISS) Program managers have approved an unplanned spacewalk to attempt to fix a stuck transportation cart outside the station, which is preventing the movement of a robotic transporter along the station s Truss. While not a critical safety issue, the situation is highly undesirable, hence a quick resolution is planned. (source: - more...)

20/12/2015 - SpaceX’s Falcon 9 rocket will return to flight Sunday evening, in a mission for communications firm Orbcomm which may also see the first attempt to return the vehicle’s first stage to the launch site. Flying in a new “Full Thrust” configuration, the rocket is expected to depart Cape Canaveral at 20:29 Eastern time (01:29 UTC on Monday). (source: - more...)

19/12/2015 - SpaceX will launch its newly upgraded Falcon 9 rocket for the first time in six months on Sunday. CEO Elon Musk confirmed the plans on Twitter late Friday night. The 45th Weather Squadron, part of the 45th Space Wing at Patrick Air Force Base, has scheduled the launch for 8:29 p.m. ET, weather permitting. A recent test of the rocket's main engines leave Musk seemingly confident of the scheduled Cape Canaveral launch. "Static fire test looks good," Musk tweeted Friday evening. "Pending da ... (source: - more...)

18/12/2015 - SpaceX has conducted the key milestone of a Static Fire test at its Space Launch Complex – 40 (SLC-40) pad on Friday. The debut launch of the upgraded “Full Thrust” Falcon 9 is set to loft eleven ORBCOMM-2 (OG2) satellites, marking the rocket’s Return To Flight. The launch date is now scheduled as December 20, pending a successful Launch Readiness Review (LRR). (source: - more...)

16/12/2015 - An Arianespace Soyuz ST-B launched with another pair of Galileo satellites from the European Spaceport in Kourou, French Guiana on Thursday. The launch of the FM08 and FM09 satellites – FOC M4, SAT 11-14 – was on schedule at 11:51 UTC, ahead of nearly four hours of flight en route to the IOC (initial operation capability) of Galileo. (source: - more...)

16/12/2015 - A new satellite – that will help humanity to unravel the mysteries of the Dark Matter – was launched on Thursday by China. The launch of the DAMPE satellite took place at 00:12 UTC using a Long March-2D launch vehicle from the 603 Launch Pad at the Jiuquan Satellite Launch Center’s LC43. (source: - more...)

16/12/2015 - Scientists are learning more about how the upper atmosphere and ionosphere affect space satellites as well as communications and navigation here on Earth, thanks to new data from a U.S. Air Force satellite that recently completed a more than seven-year mission. The Communication/Navigation Outage Forecasting System (C/NOFS) satellite burned up in Earth's atmosphere during a planned reentry on Nov. 28, leaving behind a treasure trove of data about a part of the space environment that's difficult to ... (source: - more...)

15/12/2015 - Tim Peake, the first Briton to travel to the International Space Station, blasted off on Tuesday from the Baikonur cosmodrome with Russian space veteran Yury Malenchenko and Tim Kopra of NASA for a six-month mission. Fire from the boosters of the Soyuz TMA-19M rocket cut a bright light through the overcast sky at the Russia-operated cosmodrome in Kazakhstan, after the spacecraft launched on schedule at 1103 GMT (17.03 pm local time), according to live television broadcasts. A spokesman for Missi ... (source: - more...)

12/12/2015 - Russia’s Proton-M launched on its seventh flight of the year Sunday morning, beginning a lengthy mission to deploy a Garpun military communications satellite. The rocket departed Baikonur at 06:19 local time (00:19 UTC) to begin a nine-hour journey to geostationary orbit that resulted in a successful deployment of the satellite. (source: - more...)

11/12/2015 - The Zenit rocket has successfully conducted what is likely to be its final flight Friday, successfully delivering Russia’s Elektro-L No.2 weather satellite into orbit following a lengthy flight. Liftoff occurred at 19:45 local time (13:45 UTC) from the Baikonur Cosmodrome in Kazakhstan. (source: - more...)

10/12/2015 - Expedition 45 crewmembers Oleg Kononenko, Kimiya Yui, and Kjell Lindgren have completed their journey home to Earth on the Soyuz TMA-17M spacecraft on Friday morning. Undocking from the International Space Station (ISS) occurred at 09:47 UTC (4:47 am EST) ahead of a night landing on the Kazakh steppes at around 13:15 UTC (8:15 am EST). (source: - more...)

09/12/2015 - China launched the second of a new generation of tactical communications satellites. Zhongxing-1C – or Chinasat-1C – was launched at 16:46 UTC on December 9, 2015 – from the Xichang Satellite Launch Center. A Long March-3B/G2 rocket was used to loft the spacecraft uphill. (source: - more...)

08/12/2015 - Orbital ATK’s “S.S. Deke Slayton II” Cygnus spacecraft has completed rendezvous and proximity operations with the International Space Station (ISS), allowing for capture and berthing following a two day orbital chase with the laboratory. Astronauts aboard the Station grappled Cygnus with the Station’s robotic arm at 06:19 EST Wednesday, prior to completing berthing a few hours later. (source: - more...)

06/12/2015 - Orbital ATK’ Cygnus resupply spacecraft finally returned to flight on Sunday following weather scrubs over numerous recent attempts. Riding United Launch Alliance’s Atlas V rocket uphill a year on from the loss of its previous mission atop Orbital’s own Antares rocket, liftoff from Cape Canaveral finally occurred at 16:44 Eastern on Sunday. (source: - more...)

04/12/2015 - Virgin Galactic – part of the Virgin corporation headed by Sir Richard Branson – has unveiled their new LauncherOne system s dedicated aircraft at the company s facility in San Antonio, Texas. The aircraft, a former Virgin Atlantic Boeing 747-400 series passenger carrier, is slated to begin service to Virgin Galactic in late 2017 with the first of three test flights. (source: - more...)

02/12/2015 - The European Space Agency’s LISA Pathfinder mission launched atop a Vega rocket Thursday morning, beginning a year-long mission to demonstrate technologies that could be used for future missions to observe gravity waves. The launch – initially delayed 24 hours – took place at 04:04 UTC from the European spaceport at Kourou, French Guiana. (source: - more...)

01/12/2015 - NASA is nearly ready to begin testing of a core component of the Orion spacecraft. A structural test version of the European Service Module has arrived in the United States and will soon undergo a series of tests at NASA’s Glenn Research Center s Space Power Facility in Sandusky, Ohio, to validate the service module’s design ahead of the EM-1 mission in 2018. (source: - more...)

30/11/2015 - Two new test stands are being constructed at the Marshall Space Flight Center, ready to “stress out” the Space Launch System (SLS). Test Stand 4697 and 4693 are both under construction, ready to receive all major elements of the monster rocket for structural testing. The 215-foot stand Test Stand 4693 is being built on the foundations of the Saturn V’s F-1 engine test stand. (source: - more...)

27/11/2015 - As NASA continues to progress toward the debut flight of SLS in 2018, the agency is now examining additional secondary payloads to fly on the EM-1 mission. These secondary payloads will involve Cubesats designed to investigate lunar and human biology aspects of spaceflight as well as Near Earth Asteroid reconnaissance. (source: - more...)

26/11/2015 - China launched another satellite in the military’s Yaogan Weixing series via the use of a Long March-4C (Chang Zheng-4C) rocket. The “YG-29″ mission began with liftoff at 21:24 UTC on Thursday, from the LC9 launch complex at the Taiyuan Satellite Launch Center (TSLC). (source: - more...)

26/11/2015 - The two ExoMars spacecraft of the 2016 mission are being prepared for shipping to the Baikonur Cosmodrome in Kazakhstan ahead of their launch in March. A joint endeavour with Russia's Roscosmos space agency, ExoMars comprises two missions. The Trace Gas Orbiter (TGO) and Schiaparelli make up the 2016 mission, while the 2018 mission will combine a rover and a surface science platform. Both missions will be launched on Russian Proton rockets from Baikonur. TGO and Schiaparelli are undergoing f ... (source: - more...)

25/11/2015 - NASA’s James Webb Space Telescope (JWST) – the successor to the Hubble Space Telescope – has hit the final assembly phase milestone via the installation of the first of 18 mirrors on the spacecraft’s backbone structure. All 18 segments are expected to be installed by early next year as JWST prepares for launch in 2018 via an Ariane 5 rocket. (source: - more...)

24/11/2015 - The goal of reusing rocket stages – a major enabler for the reduction of costs associated with launches – landed another milestone this week when Blue Origin conducted the second successful test flight of its New Shepard rocket, rising to 330,000 feet, prior to nailing a propulsive landing of the booster which will allow for it to be reused. (source: - more...)

24/11/2015 - NASA selected Aerojet Rocketdyne of Sacramento, California, to restart production of the RS-25 engine for the agency's Space Launch System (SLS), the most powerful rocket in the world, and deliver a certified engine. SLS will use four RS-25 engines to carry the agency's Orion spacecraft and launch explorers on deep space missions, including to an asteroid placed in lunar orbit and ultimately to Mars. Part of NASA's strategy to minimize costs of developing the SLS rocket was to leverage the assets, ... (source: - more...)

23/11/2015 - NASA has awarded contracts to three American propulsion companies to aid the U.S. federal space agency with the development of advanced deep-space Electric Propulsion systems – including VASIMR – needed to one day transport astronauts to destinations beyond Low Earth Orbit (LEO). (source: - more...)

23/11/2015 - Japan is conducting its first dedicated commercial satellite launch Tuesday, with an H-IIA rocket carrying a Canadian communications spacecraft, Telstar 12V, into orbit. The launch departed Japan’s Tanegashima Space Centre within a 104-minute launch window, with a T-0 of 15:50 local time (06:50 UTC) following a delay caused by a boat entering the range. (source: - more...)

20/11/2015 - SpaceX received orders Friday from the US space agency to send astronauts to the International Space Station in the coming years, helping restore US access to space, NASA said. The announcement was a formal step in a process that began earlier this year when Boeing was given the nod by NASA to send crew to the orbiting outpost by late 2017. Both Boeing and SpaceX have received billions in seed money from NASA to restore American access to the ISS, after the US space shuttle program was retired i ... (source: - more...)

20/11/2015 - What happens to your body in space? NASA's Human Research Program has been unfolding answers for over a decade. Space is a dangerous, unfriendly place. Isolated from family and friends, exposed to radiation that could increase your lifetime risk for cancer, a diet high in freeze-dried food, required daily exercise to keep your muscles and bones from deteriorating, a carefully scripted high-tempo work schedule, and confinement with three co-workers picked to travel with you by your boss. Scott Kell ... (source: - more...)

20/11/2015 - SpaceX’s Return To Flight (RTF) milestone remains on track for December, as the Falcon 9 first stage – tasked with the launch of the ORBCOMM-2 mission – arrived at its Cape Canaveral launch site early on Friday. The launch of the OG-2 mission will also be the debut of the Full Thrust version of the SpaceX workhorse. (source: - more...)

20/11/2015 - The Chinese have launched the LaoSat-1 communications satellite for Laos at 16:07 UTC on Friday. The launch was conducted by the Long March-3B/G2 (Y38) launch rocket – launching from the LC2 Launch Complex of the Xichang Satellite Launch Center. (source: - more...)

19/11/2015 - United Launch Alliance (ULA) will begin adding a cubesat dispenser on to its Atlas V missions from 2017, allowing for the launch of up to 24 cubesats alongside its primary mission payload. In advertising the opportunities to cubesat companies, ULA has announced it will allow for several free rides for University payloads. (source: - more...)

18/11/2015 - XCOR Aerospace has announced that it has completed work on its Lynx simulator system, built by Protobox LLC in conjunction with the Air Force Research Lab (AFRL) at Wright Patterson Air Force Base in Dayton, Ohio. This simulator will provide XCOR invaluable training as the test pilot team prepares for Lynx flight test. "Dedicated aerodynamic modeling of the vehicle in the LAMARS (Large Amplitude Multi-Mode Aerospace Research Simulator) at AFRL (Air Force Research Laboratory) in Dayton, Ohio has pr ... (source: - more...)

18/11/2015 - Boeing is making impressive strides on a series of tests and technical verifications for their CST-100 Starliner spacecraft. With Boeing and NASA now working through a Test and Verification Control Board meeting this month and Atlas V launch pad infrastructure build progressing on schedule, Boeing remains on track to launch their commercial crew spacecraft on its maiden voyage in spring 2017. (source: - more...)

17/11/2015 - Russia has launched a new early warning system satellite called EKS-1 (EKS No.1) early on Tuesday. The launch of the satellite was conducted by the Soyuz 2-1B rocket with a Fregat-M upper stage, launching from the Plesetsk Cosmodrome in northern Russia, with a T-0 of 06:34 UTC. (source: - more...)

16/11/2015 - Three Orbital ATK Cygnus spacecraft are to play a major role in understanding the threat of a fire onboard a vehicle in space. The Saffire (Spacecraft Fire Safety Demonstration Project) objectives will be conducted at the conclusion to the ORB-5, 6 and 7 mission, ahead of the spacecraft ending their flights in their own fire of a destructive re-entry. (source: - more...)

15/11/2015 - New observations made near the south pole of Titan by NASA's Cassini spacecraft add to the evidence that winter comes in like a lion on this moon of Saturn. Scientists have detected a monstrous new cloud of frozen compounds in the moon's low- to mid-stratosphere - a stable atmospheric region above the troposphere, or active weather layer. Cassini's camera had already imaged an impressive cloud hovering over Titan's south pole at an altitude of about 186 miles (300 kilometers). However, that cloud, ... (source: - more...)

13/11/2015 - A November meeting of the Human Exploration and Operations Mission Directorate (HEOMD) Advanced Exploration Systems division has discussed the progress made in Fiscal Year 2015 and upcoming FY16 milestones surrounding the development of long-duration habitats needed for astronauts on missions from cis-lunar flights to multi-year trips to Mars. (source: - more...)

12/11/2015 - Kennedy Space Center’s iconic Vehicle Assembly Building (VAB) is continuing its preparations to host the Space Launch System (SLS) and commercial rockets, with modifications from the ground up. The revamp includes a modernization of its inner workings, including the fire suppression system – a key safety element for the massive building. (source: - more...)

11/11/2015 - With approximately three years to go before the inaugural flight of the Space Launch System rocket, NASA has developed the integrated mission milestone processing flow for the EM-1 flight. The flow, which outlines all the necessary hardware processing milestones to a 2018 inaugural flight of SLS, helps solidify SLS’s path toward launch, including the pad processing timeline once the first SLS rocket is fully integrated. (source: - more...)

10/11/2015 - From possible ice volcanoes to twirling moons, NASA's New Horizons science team is discussing more than 50 exciting discoveries about Pluto at this week's 47th Annual Meeting of the American Astronomical Society's Division for Planetary Sciences in National Harbor, Maryland. "The New Horizons mission has taken what we thought we knew about Pluto and turned it upside down," said Jim Green, director of planetary science at NASA Headquarters in Washington. "It's why we explore - to satisfy our innate ... (source: - more...)

09/11/2015 - SpaceX has conducted a rollout of its giant Transporter/Erector strongback system at the Kennedy Space Center’s Pad 39A. The test rollout – from the company’s newly constructed Horizontal Integration Facility (HIF) – allowed engineers to conduct a variety of checks, in preparation for transporting the first Falcon Heavy rocket to the historic pad next year. (source: - more...)

08/11/2015 - The Chinese launched another satellite on the Yaogan Weixing series on Sunday. Launch of Yaogan Weixing-28 took place at 07:06 UTC using a Long March-4B launch vehicle from the LC9 launch complex at the Taiyuan Satellite Launch Center. (source: - more...)

06/11/2015 - Astronauts aboard the International Space Station (ISS) successfully conduct another spacewalk on Friday, returning the cooling system on the P6 Truss to its original configuration, following a successful resolution to a leak which necessitated the change in configuration. The 6.5-hour spacewalk got underway ahead of schedule at 11:22 PM GMT and lasted seven hours and 48 minutes (source: - more...)

04/11/2015 - The voice of Hugh Harris provided countdown commentary for the brave new era of the Space Shuttle Program during his illustrious NASA career. Mr. Harris confirmed liftoff to audiences worldwide for the victorious debut launch of Columbia, the tragic loss of Challenger and the fightback of Discovery’s first Return To Flight mission. (source: - more...)

04/11/2015 - BAE Systems plc and Reaction Engines Limited ('Reaction Engines') have announced a strategic investment by BAE Systems and a working collaboration to accelerate Reaction Engines' development of SABRE - a new aerospace engine class that combines both jet and rocket technologies with the potential to revolutionise hypersonic flight and the economics of space access. The transaction is subject to the approval of Reaction Engines' shareholders. Under the terms of the agreement, BAE Systems will inves ... (source: - more...)

03/11/2015 - China launched a new communications satellite on Tuesday – one that may sport military applications. The Zhongxing-2C spacecraft – otherwise known as Chinasat-2C – was launched at 16:25 UTC, lifting off via a Long March 3B/G2 from the Xichang Satellite Launch Center. (source: - more...)

03/11/2015 - The Super Strypi rocket conducted its maiden flight and the first orbital launch from (source: - more...)

02/11/2015 - On 2 November 2000, the Expedition 1 crew to the International Space Station docked with the rapidly growing orbital outpost to begin what has become an uninterrupted 15 years of habitation aboard the international complex. This record stands to date as the longest continuous human habitation in space and continues to pave the way for future multi-year missions to Mars. (source: - more...)

30/10/2015 - Making its third launch of the month, United Launch Alliance’s Atlas V rocket has successfully deployed the penultimate Block IIF Global Positioning System satellite. Liftoff from Cape Canaveral – rescheduled for Saturday – occurred at the start of a nineteen-minute window that opened at 12:13 EDT (16:13 UTC). (source: - more...)

29/10/2015 - Continuing its exploration at the ringed giant of the solar system, NASA’s Cassini spacecraft has completed a dive through the ice plume ejecta material of the Saturnian moon Enceladus. The dive, designed to collect data about the mysterious subterranean salt water ocean on Enceladus, took Cassini on its deepest dive ever into the mysterious plumes of the ice moon. (source: - more...)

28/10/2015 - Two astronauts stepped outside the International Space Station (ISS) on Wednesday in order to perform a spacewalk aimed at general maintenance and enhancements of the station. The Extra Vehicular Activity (EVA) – designated US EVA-32 – began at 12:03 PM GMT and is scheduled to be a 6.5-hour spacewalk in duration. (source: - more...)

26/10/2015 - China has conducted the launch of the latest Tianhui-1 satellite, believed to be the third in the range following on from a previous launch in 2012. The launch of Tianhui-1C took place at 07:10 UTC, utilizing the Long March 2D (Chang Zheng-2D) rocket, lifting off from the Jiuquan Satellite Launch Center. (source: - more...)

24/10/2015 - SpaceX is preparing to conduct the first full duration static fire test on its “full thrust” Falcon 9 first stage. The milestone – set to be conducted at its McGregor test facility in Texas within the next few days – will be a major step forward in the flow towards the company’s Return To Flight mission tasked with launching a group of Orbcomm-2 satellites, set to take place in late November/early December at the earliest. (source: - more...)

22/10/2015 - NASA’s OSIRIS-REx spacecraft has completed assembly operations at its Lockheed Martin construction site in Denver, Colorado. OSIRIS-REx, slated to become the first asteroid sample return mission for the U.S. space agency, is scheduled to launch in September 2016 on a United Launch Alliance Atlas V rocket from the Cape Canaveral Air Force Station, FL. (source: - more...)

21/10/2015 - SpaceX’s DragonFly test vehicle has arrived at the company’s test facility in McGregor, Texas. DragonFly will be attached to a large crane, ahead of a series of test firings of its SuperDraco thrusters to set the stage towards the eventual goal of propulsive landings. The first test is set to take place in the next few weeks to kick start around two years of incremental testing. (source: - more...)

20/10/2015 - Space Systems/Loral (SSL) has been selected to provide a communications satellite to Azercosmos, the national satellite operator of Azerbaijan. The new satellite will be called Azerspace-2, although it will also be called Intesat-38 after a strategic agreement was signed with Intelsat. The launch – on a yet-to-be-confirmed rocket – is expected to take place late in 2017. (source: - more...)

19/10/2015 - The draw of mounting a human mission to Mars has held the public s attention since telescopic observations of the red planet began centuries ago. With the recent discovery of current-day saltwater flows on Mars, the notion of usable, in-situ resources for Martian human missions now places greater emphasis on robotic precursor missions in the next decade. (source: - more...)

16/10/2015 - As China's exploration of the moon progresses, its space experts have begun considering going deeper into the solar system - to Mars, asteroids and Jupiter - and a manned deep-space mission. At a recent conference on deep-space exploration in Harbin, capital of northeast China's Heilongjiang Province, an official urged scientists and technologists to have a pioneering spirit. "When exploring the unknown, we should not just follow others. China should be more creative," said Liu Jizhong, dire ... (source: - more...)

16/10/2015 - SpaceX has selected the ORBCOMM-2 (OG2) mission for Falcon 9’s Return To Flight. While no specific launch date has been selected, the company is aiming for lift off to take place in around six to eight weeks, likely resulting in an early December mission. ORBCOMM-2’s trip to LEO will allow for the Second Stage to conduct additional testing ahead of the more taxing SES-9 mission. (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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