US19900517_A
US19900517_A17 May 1990
Reported 17 May 1990. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 17 May 1990 (day precision)
- place
- United States
- crop
- not recorded by any source
- size
- not recorded
- recorded by
- cc
- images
- 1 · 1 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
- 40.600203, -77.413558
- how it was got
- county centroid
county, to within 120,000 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
1 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 (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 47.4 KiB image/jpeg |
image 17bd48ea7402 | https://www.cropcirclecenter.com/date/1990/199005.html |
Date
17 May 1990, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 17 May 1990
- weekday
- Thursday, day 137 of the year, ISO week 20, spring
- sun and moon
- 35.1 days before the June solstice; moon last quarter (54% lit), 7.7 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
- 40.600203, -77.413558 — county, ±120,000 m, by county_centroid, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Pennsylvania | United States | 40.600203, -77.413558 county / county_centroid |
Crop and size
crop and size not recorded by any source
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 | US19900517_A |
| name | |
| location | |
| county | Pennsylvania |
| country | United States |
| date reported | 1990-05-17 |
| date precision | day |
| crop | |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1990/199005.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | unknown_place; no_formation_page |
| record | cc/341e4aad60273… raw record view: /formation/cc/341e4aad602730154b30979cc59f1b5cd6ec8d8593e3941b788e4579b5d1ee55 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
1 diagram file(s) on this page. 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 17bd48ea | ≈ continuous (concentric circles) | 3 | 3 | 0.992 | 0.7768 |
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 17bd48ea— 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
- Bishops Cannings 13 May 1990, Bishops Cannings
- next
- Punch Bowl 18 May 1990, Punch Bowl
- previous in US
- Gulf Breeze 28 February 1990
- next in US
- Eagle Butte July 1990
- same day
- Hambledon (Hambledon)
- 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.
this formation has no coordinate at place confidence or better, so nothing can be called near it
- 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/US19900517_A.json · row in index/manifest.jsonl
- input digests
- entity 70826a0173bf · images 6e5ab19d6872 · texts 4f53cda18c2b · geo ce4cdcf66bf8