Daily Sunspot Evaluation
Observation Sheet Friday, 1 February 2002
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)
- 8
- Number of spots (f)
- 103
- Relative number (R)
- 183
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20020201.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FAC – 36 | 8 | 23W | 51 | 26W | 16.5 | |
| 2 | HS – 2 | 10 | 26E | 2 | 23E | 1 | |
| 3 | HA – 9 | 16 | 50E | 338 | 47E | 3 | |
| 4 | HS – 3 | -3 | 07W | 35 | 10W | ~3.5 | |
| 5 | AX – 2 | -7 | 06W | 34 | 09W | ~1.5 | |
| 6 | EAC – 40 | -15 | 05E | 23 | 02E | 12 | |
| 7 | DSO – 2 | -6 | 65E | 323 | 62E | ~5 | |
| 8 | EAO – 9 | -27 | 63E | 325 | 60E | ~14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.