Daily Sunspot Evaluation
Observation Sheet Sunday, 11 March 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)
- 7
- Number of spots (f)
- 43
- Relative number (R)
- 113
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20010311.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 2 | 24 | 66W | 90 | 68W | 5 | |
| 2 | DAO – 12 | 9 | 42W | 66 | 44W | 10 | |
| 3 | EAO – 7 | -38 | 70W | 94 | 72W | -12 | |
| 4 | BXO – 2 | -17 | 50W | 74 | 52W | -3 | |
| 5 | AX – 1 | -20 | 48E | 336 | 46E | 0.5 | |
| 6 | DAC – 17 | -8 | 58E | 326 | 56E | 10 | |
| 7 | ? – 2 | -13 | 84E | 300 | 82E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.