The local space context of Irkutsk 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 | 52.296° N, 104.291° E | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 623,869 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Drovyanaya, Chitinsk oblast' | 604 km E (95°) | 51.500° N, 113.000° E | gcat-sites |
| Kansk, Krasnoyarsk region | 706 km NW (311°) | 56.200° N, 95.700° E | gcat-sites |
| Aginskiy Test Range (247 MP Tsugol) | 780 km E (96°) | 51.016° N, 115.424° E | gcat-sites |
| Yasnaya missile base, Chita Oblast | 819 km E (97°) | 50.800° N, 115.900° E | gcat-sites |
| Krasnoyarsk missile site, Russia | 892 km NW (304°) | 56.230° N, 92.290° E | gcat-sites |
| Sainshand meteorological rocket station | 928 km SSE (150°) | 44.890° N, 110.140° E | gcat-sites |
| Uzhur missile site, Russia | 976 km WNW (295°) | 55.207° N, 90.253° E | gcat-sites |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| USSR test 2445181 | 168 km N (357°) | 53.800° N, 104.140° E | nuclear-tests |
| RIFT | 169 km N (356°) | 53.813° N, 104.132° E | nuclear-tests |
| METEORIT | 472 km ESE (106°) | 50.950° N, 110.780° E | nuclear-tests |
| USSR test 2443366 | 472 km ESE (106°) | 50.950° N, 110.780° E | nuclear-tests |
| METEORIT | 569 km NNE (12°) | 57.290° N, 106.230° 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, 15,081 fly orbits whose ground track reaches 52.296° N, so they can pass directly overhead; the other 8,170 never reach this latitude.
| space station | inclination | can pass overhead |
|---|---|---|
| Bai Xiang | 85.0° | yes |
| International Space Station (+3 docked records) | 51.6° | no — its track stops at 51.6° |
| 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 30.2° 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 Irkutsk in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.