Chrsitmas Creek
AU19710420_A20 April 1971·Chrsitmas Creek·grass
Reported 20 April 1971 in grass at Chrsitmas Creek. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 20 April 1971 (day precision)
- place
- Chrsitmas Creek
Australia - crop
- grass
- 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
- -23.751792, 149.304039
- 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 same file as tt |
diagram no diagram published by cropcirclecenter (“no diagram” tile) |
cropcirclecenter.com / Bertold Zugelder | site default | 575×415 66.1 KiB image/jpeg |
image 3461dff5df5d | https://www.cropcirclecenter.com/date/1971/197104.html |
Date
20 April 1971, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 20 April 1971
- weekday
- Tuesday, day 110 of the year, ISO week 16, spring
- sun and moon
- 30.2 days after the March equinox; moon waning crescent (29% lit), 9.7 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
- -23.751792, 149.304039 — county, ±120,000 m, by county_centroid, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Queensland | Australia | -23.751792, 149.304039 county / county_centroid |
Crop and size
- crop
- grass (cc: pasture grass)
- 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 | AU19710420_A |
| name | Chrsitmas Creek |
| location | |
| county | Queensland |
| country | Australia |
| date reported | 1971-04-20 |
| date precision | day |
| crop | pasture grass |
| size | |
| diameter (ft) | |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1971/197104.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/fd46eca9c656e… raw record view: /formation/cc/fd46eca9c656eee96fb80a05e36bebd99c40971d5ae79ae21a18c9124ee0f077 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, of which 1 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 3461dff5 (placeholder: digest) | ≈ 2-fold score 0.906 | 4 | 3 | 0.853 | 0.3434 |
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 3461dff5— 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
- Hjortkvarn 3 April 1971, Hjortkvarn
- next
- Westgate 25 April 1971, Westgate
- previous in AU
- Atkinson March 1971
- next in AU
- Norwood 22 May 1971
- 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.
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/AU19710420_A.json · row in index/manifest.jsonl
- input digests
- entity d6570c32c344 · images cde4d9495e39 · texts 4f53cda18c2b · geo fbfd025dd8dd