Daily Sunspot Evaluation
Observation Sheet Tuesday, 11 September 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)
- 6
- Number of spots (f)
- 149
- Relative number (R)
- 209
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20010911.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAC – 8 | 11 | 68W | 181 | 71W | 11 | |
| 2 | CRO – 9 | 22 | 02W | 115 | 05W | 5 | |
| 3 | CSI – 7 | -17 | 39W | 152 | 42W | 10 | |
| 4 | CAI – 23 | -17 | 13W | 126 | 16W | 15 | |
| 5 | FKC – 55 | -28 | 04E | 109 | 01E | 28 | |
| 6 | EAC – 47 | -14 | 17E | 96 | 14E | 12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.