Daily Sunspot Evaluation
Observation Sheet Sunday, 25 February 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)
- 4
- Number of spots (f)
- 20
- Relative number (R)
- 60
- Observer
- TA
- Reading
- all checks consistent
- File
- 20010225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 12 | 11 | 19E | 190 | 16E | 8 | |
| 2 | DAO – 2 | -9 | 75W | 284 | 78W | ~9 | |
| 3 | CAO – 5 | -26 | 49W | 258 | 52W | 5.5 | |
| 4 | HA – 1 | -11 | 13E | 196 | 10E | ~1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.