The local space context of Sanhe 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 | 39.980° N, 117.069° E | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 965,075 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| 51St Base, Fengrun, Tangshan, Hebei province | 88 km E (99°) | 39.856° N, 118.093° E | gcat-sites |
| Huludao Shipyard test site | 326 km ENE (75°) | 40.700° N, 120.800° E | gcat-sites |
| Bohai launch area (Some Yellow Sea launches may also be here) | 369 km ESE (115°) | 38.500° N, 120.900° E | gcat-sites |
| Jinzhou missile base, Liaoning province | 371 km ENE (67°) | 41.190° N, 121.170° E | gcat-sites |
| 822 Brigade missile base, Laiwu, Shangdong province | 420 km S (172°) | 36.235° N, 117.716° E | gcat-sites |
| 410 Brigate Missile Base, Dengshahe, Liaoning province | 435 km E (99°) | 39.229° N, 122.054° E | gcat-sites |
| Taiyuan weixing fashe zhongxin | 476 km SW (236°) | 37.500° N, 112.600° E | gcat-sites |
| Haiyang test site, Shandong | 505 km SE (133°) | 36.800° N, 121.200° E | gcat-sites |
| Jianggezhuang Submarine Base | 529 km SE (143°) | 36.104° N, 120.579° E | gcat-sites |
| Uiju launch location, N Pyongan province, N Korea | 639 km E (87°) | 40.026° N, 124.578° E | gcat-sites |
| Dongrim (Tongrim), N Pyongan Prov. | 650 km E (88°) | 39.900° N, 124.700° E | gcat-sites |
| Sohae Launch Site, Tongch'ang-dong, Pyongang-bukdo (N Pyongan Prov), N Korea | 653 km E (91°) | 39.660° N, 124.706° E | gcat-sites |
| Sonchon, N Pyongan Prov. | 668 km E (89°) | 39.800° N, 124.900° E | gcat-sites |
| Huang Hai CZ-11 launch zone | 672 km SE (146°) | 34.900° N, 121.190° E | gcat-sites |
| Space Pioneer Gongyi Static Test Site | 685 km SSW (212°) | 34.709° N, 113.051° E | gcat-sites |
| … and 39 more within 1000 km | |||
| site | distance · bearing | position | source layer |
|---|---|---|---|
| MUSCOVY | 343 km SSW (196°) | 37.017° N, 115.995° E | nuclear-tests |
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, 19,983 fly orbits whose ground track reaches 39.980° N, so they can pass directly overhead; the other 3,268 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 43.7° 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 Sanhe in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.