Tiangong Live Tracker: a practical guide
Use the live tool above to explore Tiangong Live Tracker. This guide explains what the page measures, how to use the new exports and planning controls, and which checks belong to the mission or data provider. Follow the official source for Tiangong Live Tracker for the latest mission or product context. Keep calculated positions, photographs and operational announcements distinct when interpreting a result.
Track China’s orbital research station
Tiangong is China’s crewed space station. Its main orbital complex is tracked here as a specific catalog object rather than as a collection of interchangeable spacecraft names. Docked vehicles, station modules and recently separated objects can have different catalog records, so the ID is an important part of an observing note. The geographic marker describes where the selected object is calculated to be above Earth. It does not identify which astronauts are aboard, which experiment is running or the station’s current internal configuration. For those mission details, follow the China Manned Space Agency rather than inferring operational news from a moving dot on a map.
Its sky path is different from the ISS
Tiangong and the ISS occupy different orbital planes, so a good ISS pass does not establish a simultaneous Tiangong pass. Your latitude and the station’s orbital inclination influence whether it can pass above your horizon. Use the selected station’s own rise and set calculations, and check the maximum elevation for your saved coordinates. A station orbit on the world map is not a local sky track: geographic longitude and latitude must be converted into direction and elevation at your observing site. The pass planner performs the local calculation with the same loaded elements and keeps its results labelled as geometric opportunities.
Use a realistic observing reference
The figures in this guide are current screenshots of the Tiangong tracker, labelled with their capture time. They show the orbital interface rather than a substitute photograph of another station. A reference picture cannot prove how bright the station will look tonight. Illumination, attitude, range and the surrounding sky can all change the impression. Note the compass direction, time and duration when you observe a candidate, and compare them with the Tiangong prediction. A disciplined comparison helps distinguish this station from another moving satellite without relying on a dramatic photographic appearance.
Orbital-format reference: CelesTrak GP and OMM documentation. Local horizon crossings are geometric events; the new planner does not classify them as sunlit or dark-sky visible passes.
Keep the main station record separate from visiting vehicles
A crewed station programme includes more than one Earth-orbiting object. Visiting spacecraft, cargo vehicles and separately catalogued components can appear under related names. The dedicated Tiangong route selects the station record used by this site, while the satellite catalog directory can lead you to other objects. Write the NORAD number alongside the name when comparing positions or exports. A close-looking track from a visiting vehicle is not automatically the same calculation as the main station’s track. Public element updates describe orbital motion and do not by themselves confirm a docking, undocking or change in crew composition.
Compare Tiangong and ISS from one observing site
Use the same saved location and time convention when comparing station passes. Different orbital inclinations and phasing give the two stations different opportunities over a particular region. It is possible for one station to have a useful pass while the other remains below your horizon. Do not copy an ISS prediction into a Tiangong observation plan simply because both are crewed stations. Start with the Tiangong tracker’s own elevation and direction, then compare the ISS orbit and pass schedule separately. Your observing site and obstructions remain the same, but the selected spacecraft and orbital elements must change for a fair comparison.
Understand why a station can fade during a geometric pass
A station can remain above the geometric horizon while becoming difficult to see. Entry into Earth’s shadow, atmospheric conditions or changing reflection geometry can reduce its brightness. The geometric planner does not model those effects as a complete optical visibility forecast. A disappearing point of light therefore does not establish that the station has set or stopped moving. Record the approximate time and viewing direction of the change. Check the surrounding night sky and use current authoritative orbital information when identifying a candidate. Mission developments belong to the China Manned Space Agency, rather than deductions from a brief visual impression.
Export a Tiangong session with its model context
The current-orbit JSON includes the selected public element record and a calculated position at the export timestamp. It supports an educational record of the session; it is not a stream from the station’s onboard instruments. The element epoch helps explain why an old snapshot differs from a later one. The pass calendar contains a separate set of future geometric intervals. Keep both files labelled so a past-state snapshot is not read as a future event list. If the saved observing location changes, the planner clears the old pass export and asks for a fresh calculation. That prevents a travel plan from silently reusing another place’s horizon geometry.
Use the current tracker images rather than a substitute station photo
The updated figures show the running Tiangong page itself. Its map marker, satellite-map background and orbit-information panels are the interface you can use above this guide. They avoid presenting an ISS photograph as though it were a photograph of Tiangong. A screenshot still has a capture time, and its numerical values will become historical as the station continues moving. Read the caption, then return to the live panel for the newest calculation. The imagery provider and orbital-data source play different roles; neither should be mistaken for a mission-control video camera or proof of a particular event aboard the station.