Allowed languages: English and Russian
Cookies and Geolocation

Our site uses cookies in order to remember your settings and give you the best experience. Other services provided by third parties may use cookies as well to show you relevant advertising in our pages. Please note also that, some site's functions might read your location and show your approximate coordinates to other users. If you keep using the site you agree.

Time Control


International Space
Station - ISS
First Space Nation
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

16/11/2017 - Just one month after the mission became public – and just seven months after its needed launch date was communicated to SpaceX – the commercial space juggernaut will… (source: - more...)

14/11/2017 - China launched its latest Fengyun-3 polar orbiting meteorological satellite on Tuesday via a Long March 4C rocket. Launch – which included the HEAD-1 satellite as a co-passenger – took place at around 18:35 UTC from the LC9 Launch Complex of the Taiyuan Satellite Launch Center, Shanxi Province. (source: - more...)

14/11/2017 - United Launch Alliance (ULA) scrubbed a second attempt to launch the penultimate Delta II mission on Wednesday, carrying the JPSS-1 weather satellite into orbit from Vandenberg Air Force Base in California. Liftoff, from Space Launch Complex 2W, was scheduled for a 62-second window opening at 01:47 Pacific time (09:47 UTC). (source: - more...)

13/11/2017 - Orbital ATK’s Cygnus resupply ship has completed its rendezvous at the International Space Station (ISS) on Tuesday morning. Cygnus launched to orbit on Orbital ATK’s Antares rocket from Wallops on Sunday, a day later than planned due to a Range violation during the Saturday attempt, which resulted in a 24 hour delay to the cargo ship’s arrival at the ISS. (source: - more...)

12/11/2017 - Orbital ATK’s Antares rocket has launched a Cygnus spacecraft on Sunday, beginning the company’s CRS-8 Commercial Resupply Services mission to the International Space Station. Liftoff, from Launch Pad 0A of the Mid-Atlantic Regional Spaceport on Wallops Island, Virginia, came after Saturday’s attempt was scrubbed due to a plane in the hazard area. (source: - more...)

11/11/2017 - SpaceX has conducted the important static fire of the Falcon 9 rocket that will be tasked with lofting the secretive Zuma payload to Low Earth Orbit next Wednesday…. (source: - more...)

11/11/2017 - Sierra Nevada s Dream Chaser has successfully completed the second attempt at its all-important Approach and Landing Test when it was dropped into a free-flight from a helicopter and… (source: - more...)

10/11/2017 - With their large production facility on Merritt Island nearing completion of its initial build, construction of their launch pad and testing facilities proceeding well, and a successful first… (source: - more...)

08/11/2017 - With the Exploration Mission -1 (EM-1) launch date now officially set for the end of 2019, Space Launch System (SLS) managers have been sending out memos to the workforce rallying them to protect that latest target. With a “risk informed” date of June 2020 also cited, managers are insisting that will only come to pass if they “do nothing” to mitigate the schedule risk. (source: - more...)

07/11/2017 - Europe’s Vega rocket has conducted its eleventh launch Tuesday, deploying Morocco’s Mohammed VI – A satellite following a late-night liftoff from the Centre Spatial Guyanais in Kourou, French Guiana. The instantaneous launch opportunity occurred at 22:42:31 local time (01:42 UTC). (source: - more...)

05/11/2017 - China successfully launched a new pair of navigation satellites – namely the Beidou-3M1 (Beidou-24) and Beidou-3M2 (Beidou-25) navigation spacecraft – on Sunday, using a Long March-3B/YZ-1 rocket that… (source: - more...)

23/10/2017 - SpaceX’s drone ship “Of Course I Still Love You” is undergoing repairs at Port Canaveral following the return of Falcon 9 booster B1031.2 after launching the SES-11 satellite. While the touchdown was nominal, a post-landing incident resulted in a short fire at the aft of the ship, which also damaged the robot that was to be used to secure the booster. The fire was quickly extinguished. (source: - more...)

20/10/2017 - Two spacewalkers completed the third in a trio of spacewalks on the International Space Station (ISS) to complete vital maintenance on the Space Station Remote Manipulator System (SSRMS), specifically its new Latching End Effectors (LEE). After EVA-44 replaced the LEE, EVA-45 and -46 helped to lube the new hardware. Numerous other tasks were completed in tandem. (source: - more...)

19/10/2017 - Iridium Communications – in the midst of launching their next generation communications constellation – has formally signed an agreement with SpaceX to utilize flight-proven Falcon 9 boosters on their upcoming Iridium NEXT-4 and -5 missions. Iridium NEXT-4, scheduled to launch NET 22 December 2017 from SLC-4E, will be the first flight-proven Falcon 9 mission from Vandenberg. The change in boosters now negates the possibility of a Return To Launch Site landing of the Falcon 9 for the mission. (source: - more...)

18/10/2017 - The RS-25 test team at Stennis Space Center hot-fired an untested flight engine on the A-1 Test Stand Thursday to help complete certification of design changes to fly on the Space Launch System (SLS). The test is another step towards the flagship test firing of all four engines on the B-2 Test Stand. (source: - more...)

17/10/2017 - United Launch Alliance (ULA) and Bigelow Aerospace have updated their future plans via an agreement to launch a B330 module on a Vulcan rocket to an eventual home in Low Lunar Orbit. Set with a target date of 2022, the “Lunar Depot” could become a precursor to a Deep Space Gateway that NASA is interested in assembling later in the decade. (source: - more...)

16/10/2017 - Roscosmos, the federal space agency of the Russian Federation, launched the Progress MS-07 craft on a resupply mission to the International Space Station on Saturday and docked on a Monday docking. A previous option for Progress to debut a new super fast rendezvous with the ISS – docking to the Station just 3.5 hrs after liftoff – was lost after an earlier scrub. (source: - more...)

16/10/2017 - In what has already been a busy year for SpaceX, the commercial launch provider is adding one more mission to its jammed-packed end-of-year schedule. A mysterious mission codenamed Zuma will launch No Earlier Than 10 November 2017 from LC-39A at the Kennedy Space Center. Meanwhile, CRS-13 is slipping at least one week per the Station’s schedule, and the Iridium NEXT-4 mission from Vandenberg has received permission to debut RTLS landing of the Falcon 9 booster back at SLC-4W. (source: - more...)

15/10/2017 - United Launch Alliance’s clandestine Atlas V launch in support of the US National Reconnaissance Office finally departed SLC-41 on Sunday, after previously failing to dodge bad weather and then suffering a telemetry transmitter issue. Liftoff of NROL-52 from the Cape Canaveral Air Force Station occurred at 07:28 Eastern. (source: - more...)

12/10/2017 - The European Space Agency’s Sentinel 5 Precursor satellite launched Friday aboard what could be the penultimate flight of Russia’s Rokot carrier rocket. Liftoff, from the Plesetsk Cosmodrome in Northern Russia, was on schedule at 12:27 Moscow Time (09:27 UTC). (source: - more...)

11/10/2017 - SpaceX launched its third re-flown Falcon 9 rocket Wednesday, carrying the EchoStar-105/SES-11 communications satellite into geosynchronous transfer orbit for SES and EchoStar. Liftoff, from Launch Complex 39A at the Kennedy Space Center took place at the opening of a two-hour window at 18:53 Eastern Time (22:53 UTC), with the booster landing successfully. (source: - more...)

02/10/2017 - Following the cheers and gasps of Elon Musk’s latest BFR update in Australia, SpaceX is preparing to return to the bread and butter of its Falcon 9 manifest, opening with a Static Fire test at Kennedy Space Center’s 39A. The test – completed part way into the six hour test window – is an important milestone ahead of the launch of the SES-11 satellite, currently scheduled to take place on October 7. (source: - more...)

29/09/2017 - Speaking at the 2017 International Astronautical Congress in Adelaide, Australia, Elon Musk has laid out a much anticipated update to SpaceX’s Mars colonization plan – including a slightly scaled back version of the BFR vehicle introduced last year. Included in this update, excitingly, was the announcement of the company s aim to establish a human base on the moon and use the BFR for Earth-based transport – taking people anywhere on the planet in less than an hour. (source: - more...)

29/09/2017 - Arianespace conducted the fifth Ariane 5 launch of the year with the lofting of the Intelsat 37e & BSAT-4a satellites from Europe s Spaceport in French Guiana on Friday. The attempt came after the rocket aborted on the pad due to an electrical issue with a booster post-main engine ignition. The abort stopped the boosters from igniting and allowed for safing to take place. (source: - more...)

28/09/2017 - International Launch Services (ILS) is upping the pace of its Proton-M launches with another mission following on closely from its Amazonas 5 success. The Russian workhorse – along with its Breeze-M upper stage partner – successfully conducted the launch of the AsiaSat-9 satellite from 200/39 site at the Baikonur Cosmodrome in Kazakhstan. Launch occurred at 18:52 UTC. (source: - more...)

28/09/2017 - After two launch mishaps that casted a shadow on the launch plans for 2017, China conducted a secretive launch from the Xichang Satellite Launch Center, Sichuan province on Friday. An unidentified payload – later revealed to be Yaogan-30 01 – was launched by the Long March-2C (Y29) at 04:20 UTC from the LC3 Launch Complex. (source: - more...)

27/09/2017 - Engineers at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, have attached the Parker Solar Probe s solar shadow-shield for final, integrated vehicle testing ahead of launch. The probe, which will be the first to touch the Sun is being readied for an anticipated 31 July 2018 launch aboard a United Launch Alliance Delta IV Heavy rocket from the Cape Canaveral Air Force Station, FL – which will start a 7 year mission to study the Sun. (source: - more...)

25/09/2017 - SpaceX is deep into pre-launch preparations for two upcoming missions that are set to lift off within a couple of days of each other. Both target launch dates have moved to the right by a matter of days, with the SES-11 mission from KSC’s 39A now tracking an October 7 departure, while on the West Coast the Iridium NEXT-3 mission now has a launch placeholder of October 9. (source: - more...)

23/09/2017 - United Launch Alliance (ULA) launched an Atlas V rocket on Saturday evening, carrying out the classified NROL-42 mission for the United States National Reconnaissance Office. Atlas – delayed two days via the requirement to changeout a battery on the booster – lifted off from California’s Vandenberg Air Force Base at 22:49 Pacific Time (05:49 UTC on Sunday). (source: - more...)

22/09/2017 - Following a series of issues over the last year with the Core Stage for the first flight of the Space Launch System rocket, the launch dates for both the EM-1 and EM-2 flights are beginning to align, with EM-1 now targeting No Earlier Than 15 December 2019 and EM-2 following on 1 June 2022. Additionally, the EM-3 flight has gained its first notional mission outline, detailing a flight to Near-Rectilinear Halo Orbit to deploy the Hab module for the new Deep Space Gateway. (source: - more...)

21/09/2017 - A Soyuz 2-1B rocket has conducted a launch in support of Russia’s GLONASS satellite navigation system in the early hours of Friday local time, carrying the Uragan-M No.52S spacecraft on a path to its destination orbit. Liftoff from the Plesetsk Cosmodrome in northern Russia was on schedule at 03:02 Moscow Time (00:02 UTC). (source: - more...)

29/08/2017 - NASA’s Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is back on track for a 2018 launch after the discovery of leaks in key instrumentation during testing forced NASA to abandon its original 2016 launch date. The spacecraft is now in final testing at its Lockheed Martin facility in Denver, ahead of a unique launch from ULA’s West Coast site. (source: - more...)

28/08/2017 - The third transportation vehicle for NASA’s Commercial Resupply Services 2 contracts for resupply efforts of the International Space Station has passed a major ground test milestone at Edwards Air Force Base, California. Completing a 60 mph (96.5 k/h) tow test earlier this month, Sierra Nevada Corporation’s Dream Chaser mini-spaceplane is now aiming for a series of Captive Carry flight tests suspended underneath a 234-UT lifting commercial helicopter. (source: - more...)

25/08/2017 - Orbital ATK’s Minotaur rocket made its first launch from Cape Canaveral Friday, delivering the experimental space surveillance ORS-5 satellite to orbit. The Minotaur IV vehicle lifted off deep into a four-hour window with a T-0 of 02:04 Eastern (06:04 UTC) from Launch Complex-46 (LC-46). (source: - more...)

24/08/2017 - SpaceX launched its fortieth Falcon 9 Thursday, carrying the Formosat-5 spacecraft for the Taiwan’s National Space Organisation and the Republic of China’s National Space Organisation. The launch, which included a successful landing of the first stage aboard the Autonomous Spaceport Drone Ship, occurred at the start of a 44-minute window that opened at 11:50 local time (18:50 UTC) from Vandenberg Air Force Base in California. (source: - more...)

23/08/2017 - NASA’s Aerospace Safety Advisory Panel (ASAP) still has a number of concerns over crew safety numbers for the Commercial Crew Program (CCP), notably the guideline Loss of Crew (LOC) metric, based on the threat of MicroMeteoroid and Orbital Debris (MMOD) damage and crew recovery from the ocean after an abort. The plan acknowledged both SpaceX and Boeing are actively working to improve their LOC ratings. (source: - more...)

21/08/2017 - The Orion European Service Module (ESM) Propulsion Qualification Module (PQM) is in the opening phases of testing – including hot firings – at the White Sands Test Facility in New Mexico. Bolted to a test stand, the PQM is being taken through a series of test campaigns by a team of personnel from prime contractor Airbus Defence and Space, the European Space Agency (ESA), and NASA. (source: - more...)

19/08/2017 - Gearing up for their second Vandenberg flight in as many months, SpaceX has static fired the Falcon 9 that will lift an extremely light-weight Taiwanese satellite to orbit next week. The static fire, a key step in every Falcon 9 launch campaign, paves the way for the launch of Formosat-5 on Thursday, 24 August at 11:50 PDT from SLC-4E at Vandenberg Air Force Base, CA, ahead of a first stage landing on the ASDS “Just Read The Instructions”. (source: - more...)

17/08/2017 - A Russian EVA was conducted outside of the International Space Station (ISS) with two Russian cosmonauts deploying several nanosatellites, collecting research samples and performing structural maintenance. Expedition 52 Commander Fyodor Yurchikhin and Flight Engineer Sergey Ryazanskiy exited the station’s Pirs airlock at 14:36 UTC and ended it after seven hours and 34 minutes. (source: - more...)

17/08/2017 - United Launch Alliance (ULA) has launched a new satellite for NASA’s Tracking and Data Relay Satellite System (TDRSS) on Friday, with an Atlas V carrying the TDRS-M satellite into orbit. Liftoff from Space Launch Complex 41 (SLC-41) at Cape Canaveral was late in a 40-minute window, with liftoff occurring at 08:29 local time (12:29 UTC). (source: - more...)

11/08/2017 - Virgin Orbit’s LauncherOne has signed an agreement to launch a SITAEL satellite developed in collaboration with the European Space Agency (ESA) and the Italian Space Agency (ASI). The all-electric propulsion microsat demonstrator called HETsat will be air-launched on a rocket carried under the wing of Virgin Orbit’s Cosmic Girl carrier plane. (source: - more...)

11/08/2017 - With just one year to go until the scheduled completion of all uncrewed and crewed test flights for SpaceX and Boeing s commercial crew transportation services, the NASA Advisory Council recently held a routine review of the technical, hardware, software, and training progress the two companies are making toward the goal of returning the capability to launch people into space from the United States. (source: - more...)

11/08/2017 - Japan’s Mitsubishi Heavy Industries will launch an H-IIA rocket early next week, carrying the third spacecraft for the country’s Quasi-Zenith Satellite System of GPS augmentation satellites. The H-IIA was scheduled to lift off from the Tanegashima Space Centre with QZS-3 at 13:40 local time (04:40 UTC) on Saturday, before an issue was found late in the countdown. (source: - more...)

10/08/2017 - SpaceX has conducted a Static Fire test on the Falcon 9 set to launch the CRS-12 Dragon to the International Space Station (ISS). A successful test on Thursday paves the way for a launch on Monday, which will include another landing attempt on the LZ-1 landing pad that is already being prepared for the dual booster landing during the maiden Falcon Heavy 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


© 2011-2017 -   - All rights reserved.