The local space context of Tangshan as this registry holds it — the catalogued human footprint on the ground around it, the orbits that can pass overhead, and the geostationary belt seen from here.
| position | 39.644° N, 118.183° E | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 3,372,102 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| 51St Base, Fengrun, Tangshan, Hebei province | 25 km NNW (342°) | 39.856° N, 118.093° E | gcat-sites |
| Huludao Shipyard test site | 251 km ENE (61°) | 40.700° N, 120.800° E | gcat-sites |
| Bohai launch area (Some Yellow Sea launches may also be here) | 267 km ESE (118°) | 38.500° N, 120.900° E | gcat-sites |
| Jinzhou missile base, Liaoning province | 306 km NE (55°) | 41.190° N, 121.170° E | gcat-sites |
| 410 Brigate Missile Base, Dengshahe, Liaoning province | 336 km E (97°) | 39.229° N, 122.054° E | gcat-sites |
| 822 Brigade missile base, Laiwu, Shangdong province | 381 km S (186°) | 36.235° N, 117.716° E | gcat-sites |
| Haiyang test site, Shandong | 412 km SE (139°) | 36.800° N, 121.200° E | gcat-sites |
| Jianggezhuang Submarine Base | 446 km SSE (151°) | 36.104° N, 120.579° E | gcat-sites |
| Taiyuan weixing fashe zhongxin | 541 km WSW (246°) | 37.500° N, 112.600° E | gcat-sites |
| Uiju launch location, N Pyongan province, N Korea | 548 km E (84°) | 40.026° N, 124.578° E | gcat-sites |
| Dongrim (Tongrim), N Pyongan Prov. | 558 km E (85°) | 39.900° N, 124.700° E | gcat-sites |
| Sohae Launch Site, Tongch'ang-dong, Pyongang-bukdo (N Pyongan Prov), N Korea | 558 km E (88°) | 39.660° N, 124.706° E | gcat-sites |
| Sonchon, N Pyongan Prov. | 575 km E (86°) | 39.800° N, 124.900° E | gcat-sites |
| Huang Hai CZ-11 launch zone | 591 km SSE (152°) | 34.900° N, 121.190° E | gcat-sites |
| Musudan launch site, Banghyon Airport, Kusong City, N Pyongan Prov. | 600 km E (85°) | 39.900° N, 125.200° E | gcat-sites |
| … and 41 more within 1000 km | |||
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Punggye-ri | 939 km ENE (75°) | 41.280° N, 129.080° E | nuclear-tests |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| MUSCOVY | 349 km SW (214°) | 37.017° N, 115.995° E | nuclear-tests |
| DPRK 2017 | 939 km ENE (75°) | 41.300° N, 129.080° E | nukes |
| DPRK 2006 | 940 km ENE (75°) | 41.280° N, 129.090° E | nukes |
Distances are great-circle on a sphere of mean radius 6,371 km; bearings are initial true bearings from the city. Each position is the source catalogue's own, read back from the registry.
Of the 23,251 artificial objects the registry places in Earth orbit on 2026-10-18, 19,988 fly orbits whose ground track reaches 39.644° N, so they can pass directly overhead; the other 3,263 never reach this latitude.
| space station | inclination | can pass overhead |
|---|---|---|
| Bai Xiang | 85.0° | yes |
| International Space Station (+3 docked records) | 51.6° | yes |
| Kosmos-382 | 55.9° | yes |
| Tianhe | 41.5° | yes |
Computed: an orbit's equatorial inclination bounds the latitudes its track reaches (inclination i, or 180° − i when retrograde), from the orbital elements the registry holds. «Can pass overhead» is geometry, not a schedule — when, and whether it is lit and visible, depends on the hour.
The geostationary belt arcs across the southern sky and stands 44.1° above the horizon due south — the elevation to aim at for a satellite at this city's own longitude. Computed: spherical Earth (equatorial radius 6,378.137 km), circular orbit of one sidereal day (42,164 km); good to a few tenths of a degree.
/sim.html#sel=EARTH&tn=1,
then stand at Tangshan in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.