Daily Sunspot Evaluation
Observation Sheet Friday, 12 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)
- 13
- Number of spots (f)
- 80
- Relative number (R)
- 210
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20011012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 6 | 13 | 02E | 60 | 01E | 7 | |
| 2 | HS – 1 | 8 | 23E | 39 | 22E | 0.5 | |
| 3 | CSO – 3 | 24 | 26E | 36 | 25E | 4 | |
| 4 | BXI – 8 | 10 | 37E | 25 | 36E | 4 | |
| 5 | EKO – 8 | 16 | 65E | 357 | 64E | ~11.5 | |
| 6 | AX – 1 | -5 | 54W | 116 | 55W | - | |
| 7 | AX – 2 | -5 | 45W | 107 | 46W | ~0.5 | |
| 8 | AX – 3 | -12 | 37W | 99 | 38W | 1.5 | |
| 9 | HA – 22 | -21 | 19W | 81 | 20W | 5.5 | |
| 10 | CAO – 8 | -20 | 06W | 68 | 07W | ~8 | |
| 11 | EAI – 9 | -12 | 36E | 26 | 35E | 11.5 | |
| 12 | CSI – 8 | -16 | 46E | 16 | 45E | ~4.5 | |
| 13 | HS – 1 | -13 | 59E | 3 | 58E | ~6.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.