Daily Sunspot Evaluation
Observation Sheet Friday, 16 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)
- 7
- Number of spots (f)
- 20
- Relative number (R)
- 90
- Observer
- AK0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20010216.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 8 | 15 | 66W | 30 | 65W | 9 | |
| 2 | HS – 1 | 28 | 12W | 336 | 11W | 1 | |
| 3 | HS – 1 | 18 | 10E | 314 | 11E | 1.5 | |
| 4 | AX – 1 | 12 | 29E | 295 | 30E | ||
| 5 | CRO – 4 | -23 | 23E | 301 | 24E | 3.5 | |
| 6 | BXO – 2 | -9 | 39E | 285 | 40E | 2.5 | |
| 7 | BXO – 3 | -22 | 58E | 272 ⚠ | 59E | ~8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.