Merefa
UA19901205_A5 December 1990·Merefa·ice
Reported 5 December 1990 in ice at Merefa. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 5 December 1990 (day precision)
- place
- Merefa
Ukraine - crop
- ice
- size
- not recorded
- recorded by
- cc
- images
- 2 · 2 diagram
- writing
- nothing was written about this formation on any source
Also called
Nothing else. No other name or place string appears on any source record for this formation.
Where exactly
- coordinate
- 49.821070, 36.056700
- how it was got
- geonames
place, to within 2,000 m, from the cc record - on a map
- OpenStreetMap
No source publishes a coordinate for any formation in this archive. Every coordinate here is derived from the place name a source printed, and this page says how precise that makes it rather than rounding it away.
Images
2 image(s) on this formation's own source records. Click a tile for the full image; the bytes are fetched when you ask for them and are not stored in this page.
Diagrams (2)
diagram
cropcirclecenter.com / Bertold Zugelder site default
diagram
cropcirclecenter.com / Bertold Zugelder site default
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram no diagram published by cropcirclecenter (plain circle placeholder) |
cropcirclecenter.com / Bertold Zugelder | site default | 575×415 32.4 KiB image/jpeg |
image c782665e5c68 | https://www.cropcirclecenter.com/date/1990/199009.html | |
| cc | diagram no diagram published by cropcirclecenter (plain circle placeholder) |
cropcirclecenter.com / Bertold Zugelder | site default | 575×415 32.4 KiB image/jpeg |
image c782665e5c68 | https://www.cropcirclecenter.com/date/1990/199012.html |
Date
5 December 1990, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 5 December 1990
- weekday
- Wednesday, day 339 of the year, ISO week 49, winter
- sun and moon
- 16.6 days before the December solstice; moon waning gibbous (86% lit), 3.2 days after the full moon (computed at 12:00 UTC; a reported date is a discovery date, not a creation date)
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 49.821070, 36.056700 — place, ±2,000 m, by geonames, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Oblast Charkiw | Ukraine | 49.821070, 36.056700 place / geonames |
Crop and size
- crop
- ice (cc: ice)
- diameter
- not recorded by any source
- size as written
- not recorded
Source records
What each source published, side by side. A row whose values differ across the sources is marked: the archive prints the disagreement rather than choosing a winner.
| field | cc cropcirclecenter.com |
|---|---|
| id / slug | UA19901205_A |
| name | Merefa |
| location | |
| county | Oblast Charkiw |
| country | Ukraine |
| date reported | 1990-12-05 |
| date precision | day |
| crop | ice |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1990/199012.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/9d295ea610586… raw record view: /formation/cc/9d295ea610586bb9587dd63fe2d6b368f8d1e55bde1cc3a7c4cd7dd2e1290974 in the preview app |
Texts
no text documents in the archive for this formation
Claims about this formation
no claim was extracted from a text about this formation
Geometry
2 diagram file(s) on this page, of which 2 is a shared cropcirclecenter placeholder rather than a drawing of this formation. measured from the diagram itself, and experimental: the extractor's rotational order is right on 88.8 % of a 200-diagram hand-labelled set against a gate of 90 %, so read a number here beside the picture rather than instead of it.
| diagram | rotational symmetry | elements | rings | mirror | fill |
|---|---|---|---|---|---|
| cc c782665e (placeholder: digest) | ≈ continuous (concentric circles) | 1 | 1 | 0.996 | 1.0049 |
Experimental, and marked ≈ wherever it appears. These numbers are read off a drawing, not off the field: the extractor's rotational order agrees with a hand-labelled set on 88.8 per cent of 200 diagrams against a gate of 90 per cent, its element count is within one on 97.5 per cent, and its ring count is not calibrated at all. Nothing in the analysis tree is derived from the rotational order while that gate is unmet.
Diagrams that look like these: cc c782665e— the nearest by perceptual hash. The whole archive is browsable by shape in the shape section, and this formation's own diagrams go straight into that grid: show them in the grid.
Neighbours
In time
- previous
- Tbilissi December 1990, Tbilissi
- next
- Ulm 1991, Ulm
- previous in UA
- Merefa 7 January 1990
- next in UA
- UA19931333_A 1993
- same day
- no other formation is dated this day
- within 7 days and 25 km
- none, or this formation has no coordinate at place confidence or better
In place
The nearest formations the archive can place.
Merefa
0 m away, 1990-01-07 Novokorsunskaya9 July 2013
Novokorsunskaya
519.0 km away, 2013-07-09
Fastovetskaya18 June 2019Fastovetskaya
530.8 km away, 2019-06-18
Tenginskaya3 May 2021Tenginskaya
603.7 km away, 2021-05-03 Moscow1970s
Moscow
667.8 km away, 1970
Brasov8 July 2006Brasov
907.7 km away, 2006-07-08
- same county and year
- none
Provenance
- entity built at
- 2026-09-11T19:20:39Z (derived from the link decisions, not from this build)
- index run ids
- none
- reviews applied
- none
- open queue pairs
- none
- entity record
- index/formations/UA19901205_A.json · row in index/manifest.jsonl
- input digests
- entity 6831dc30907c · images 76836efd2d52 · texts 4f53cda18c2b · geo de82d2233540