Ochansk
Seen to fall in 1887 in Russia · 500 kg recovered · H4
Ochansk has the eighth-largest recovered mass of the 1,063 observed falls in NASA’s Meteorite Landings dataset (records to 2013). It is the second-heaviest of the 48 falls recorded in Russia. It is the heaviest of the 50 H4 falls.
- Group
- H chondrites
- Recorded position
- 57.783° N, 55.267° E
The map is centred on Ochansk. Rings every 200 km; numbers match the table below.
Nearest recorded falls
The closest recorded fall to Ochansk is Kainsaz, 289 km to the south-west. No other fall in the record lies within 250 km of Ochansk.
| # | Fall | Year | Class | Recovered | Distance |
|---|---|---|---|---|---|
| 1 | Kainsaz | 1937 | CO3.2 | 200 kg | 289 km south-west |
| 2 | Krasnyi Klyuch | 1946 | H5 | 4 kg | 387 km south |
| 3 | Boriskino | 1930 | CM2 | 1.3 kg | 431 km south-west |
| 4 | Kunashak | 1949 | L6 | 200 kg | 433 km south-east |
| 5 | Sterlitamak | 1990 | Iron, IIIAB | 325 kg | 460 km south |
| 6 | Chelyabinsk | 2013 | LL5 | 100 kg | 489 km south-east |
What H4 means
H4 is the label for an ordinary chondrite with high total iron, petrologic type 4, mildly heated on its parent body. The nearest other H4 fall is Glasatovo in Russia, 1,051 km away. In date order among H4 falls, the one before Ochansk is Bielokrynitschie (1887, Ukraine) and the one after is Phu Hong (1887, Vietnam).
Ochansk in Russia’s record
In date order Ochansk is number 15 of the 48 falls recorded in Russia, which run from 1805 to 2013. The fall recorded before Ochansk in Russia is Novo-Urei (1886); the next is Leonovka (1900).
The 1880s
Ochansk recovered the most mass of the 40 falls dated to the 1880s. Elsewhere, the record lists four other falls in 1887, among them Bielokrynitschie in Ukraine, Phu Hong in Vietnam, Lalitpur in India.