Chiseldon

Images

2 image(s) on this formation's own source records, and 1 more on 1 attached record(s) below. 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)

diagram cropcirclecenter.com / Bertold Zugelder site default

Photographs (1)

other Lucy Pringle page credit

Attached photographs (1)

inferred link These pictures did not come with a source record of this formation. Each one is a single-photograph archive entry whose own date and place the index matched to this formation; nothing about the formation itself comes from them. The rule, the score and the evidence are printed with each record so the link can be checked, and the credit stays with the photograph.

Chiseldon, Wiltshire | 20th April 1998 | Oilseed Rape 35mm

tt temporarytemples.co.uk · archive_image · 20 April 1998 · matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 · pair 1d4c6da84787 · decided 2026-09-15T03:03:25Z

• attachment: tt archive_image chiseldon-wiltshire-20th-april-1998-oilseed-rape-35mm
• date 1998-04-20 vs 1998-04-20 (delta +0 d)
• name tokens shared: chiseldon
• county Wiltshire == Wiltshire
• country UK (uk_county) == UK (cc_id)
• crop oilseed rape == oilseed rape
• the only entity the photograph's date and place fit (UK19980420_A)

other Steve Alexander / Temporary Temples site default

site	kind	credit	basis	caption	size	file	source page
tt	other	Steve Alexander / Temporary Temples	site default	Chiseldon, Wiltshire | 20th April 1998 | Oilseed Rape 35mm	800×527 596.3 KiB image/jpeg	image 94c35702d0fd	https://temporarytemples.co.uk/crop-circles/1998-crop-circles

Date

20 April 1998, to day precision. What a source records is the day a formation was found and reported.

reported by

cc: 20 April 1998 lp: 20 April 1998

weekday

Monday, day 110 of the year, ISO week 17, spring

sun and moon

30.7 days after the March equinox; moon last quarter (43% lit), 8.6 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

51.515700, -1.731660 — place, ±2,000 m, by os_open_names, from the cc record

on a map

OpenStreetMap

Crop and size

crop

oilseed rape (cc: oilseed rape, lp: —)

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.

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.

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 587d056e— 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

Weyhill 19 April 1998, Weyhill

next

Hoeven 24 April 1998, Hoeven

previous in UK

Weyhill 19 April 1998

next in UK

Chester 3 May 1998

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.

Chiseldon10 May 1998
Chiseldon
0 m away, 1998-05-10 Chiseldon19 May 1998
Chiseldon
0 m away, 1998-05-19 Chiseldon19 June 1998
Chiseldon
0 m away, 1998-06-19 Chiseldon19 June 1998
Chiseldon
0 m away, 1998-06-19 Chiseldon30 July 1998
Chiseldon
0 m away, 1998-07-30 Chiseldon11 June 1999
Chiseldon
0 m away, 1999-06-11

same county and year

Silbury Hill 4 May 1998 · Chiseldon 10 May 1998 · Ogbourne Maizey 17 May 1998 · Chiseldon 19 May 1998 · West Overton 23 May 1998 · Winterbourne Bassett 23 May 1998 · Lockeridge 25 May 1998 · West Overton 25 May 1998 · West Overton 28 May 1998 · West Overton 29 May 1998 · Trowbridge 30 May 1998 · Trowbridge 30 May 1998 · West Kennett 1 June 1998 · Bishops Cannings 5 June 1998 · Avebury Stone Avenue 6 June 1998 · Beckhampton 6 June 1998 · West Overton 13 June 1998 · West Kennett 14 June 1998 · East Kennett 15 June 1998 · West Overton 16 June 1998 and 72 more

Provenance

entity built at

2026-09-15T21:14:17Z (derived from the link decisions, not from this build)

index run ids

20260915T030325Z-index-build, 20260915T211417Z-index-build

reviews applied

none

open queue pairs

none

entity record

index/formations/UK19980420_A.json · row in index/manifest.jsonl

input digests

entity dfd8693751aa · images 412492f2a8cb · attachments f45b194f9529 · texts 4f53cda18c2b · geo 4b6e9735db50