Daily Sunspot Evaluation
Observation Sheet Friday, 9 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)
- 5
- Number of spots (f)
- 38
- Relative number (R)
- 88
- Observer
- NA
- Reading
- all checks consistent
- File
- 20010309.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 20 | 25 | 36W | 86 | 38W | ~15.5 | |
| 2 | EAC – 15 | 10 | 15W | 65 | 17W | ~11 | |
| 3 | ? – 1 | -9 | 84E | 326 | 82E | ||
| 4 | AX – 1 | -19 | 73E | 337 | 71E | ||
| 5 | ? – 1 | -15 | 81W | 131 | 83W | ~0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.