Daily Sunspot Evaluation

Observation Sheet Wednesday, 17 October 2001

There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →

Number of groups (g)
11
Number of spots (f)
96
Relative number (R)
206
Observer
TÇ
Reading
all checks consistent
File
20011017.jpg
17.10.2001 photosphere drawing

Sunspot groups

NoGroup (class – spots) BΔ LLΔ LfU Margin no.
1AX – 2 369W 66 72W~2
2DAI – 11 1028W 25 31W7
3EKC – 32 1501E 356 02W13
4BXO – 6 1541E 316 38E~5
5CAO – 6 2643E 314 40E~8
6EAC – 17 1453E 304 50E~14
7CRO – 3 -1230W 27 33W4
8HA – 10 -1619W 16 22W4
9HA – 1 -1608W 5 11W~0.5
10HA – 2 -1662E 295 59E~2
11? – 6 -1980E 277 77E?

Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.

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