The local space context of Shuangyashan 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 | 46.677° N, 131.133° E | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 600,000 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Iskander mobile launch site, Everyskaya avtonomnaya oblast | 270 km NNE (31°) | 48.750° N, 133.000° E | gcat-sites |
| Novosysoyevka missile base | 322 km SSE (147°) | 44.240° N, 133.360° E | gcat-sites |
| Harbin missile test site, Heilongjiang, Manchuria, China | 358 km WSW (255°) | 45.750° N, 126.680° E | gcat-sites |
| Jingyu missile base 28, Jingyu, Jilin province | 592 km SW (216°) | 42.298° N, 126.877° E | gcat-sites |
| Svobodniy, Amurskaya Oblast', Rossiya | 603 km NNW (339°) | 51.700° N, 128.000° E | gcat-sites |
| Vostochniy, Svobodniy, Amurskaya Oblast', Rossiya | 603 km NNW (339°) | 51.700° N, 128.000° E | gcat-sites |
| GIK-2, Svobodniy, Amurskaya Oblast', Rossiya | 607 km NNW (341°) | 51.790° N, 128.190° E | gcat-sites |
| Tonghae SLG, Musudan-ri, Hwadae-gun, Hamgyong Pukdo, Choson | 658 km S (191°) | 40.850° N, 129.667° E | gcat-sites |
| 406 Brigade Missile Base, Tonghua, Jilin Province | 693 km SW (218°) | 41.669° N, 125.955° E | gcat-sites |
| Sovetskaya Gavan, Rossiya | 730 km ENE (66°) | 48.970° N, 140.300° E | gcat-sites |
| Mupyong-ni, Chagang province | 773 km SSW (211°) | 40.611° N, 126.426° E | gcat-sites |
| Shinpo Shipyard, S Hamgyong Prov (Hamgyong-namdo), North Korea | 778 km SSW (199°) | 40.019° N, 128.158° E | gcat-sites |
| Hamhung, S Hamyong Prov, North Korea | 809 km SSW (203°) | 39.900° N, 127.500° E | gcat-sites |
| Hamju, S Hamyong Prov, North Korea | 816 km SSW (203°) | 39.847° N, 127.437° E | gcat-sites |
| Ryonpo, Hamju County | 819 km SSW (202°) | 39.790° N, 127.533° E | gcat-sites |
| … and 26 more within 1000 km | |||
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Punggye-ri | 622 km SSW (196°) | 41.280° N, 129.080° E | nuclear-tests |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| DPRK 2017 | 620 km SSW (196°) | 41.300° N, 129.080° E | nukes |
| DPRK 2006 | 622 km SSW (196°) | 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, 16,102 fly orbits whose ground track reaches 46.677° N, so they can pass directly overhead; the other 7,149 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° | no — its track stops at 41.5° |
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 36.3° 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 Shuangyashan in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.