Daily Sunspot Evaluation
Observation Sheet Sunday, 15 February 2004
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)
- 18
- Relative number (R)
- 68
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040215.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 6 | 7 | 48W | 336 | 51W | 4.5 | 23 |
| 2 | ? – 1 | 1 | 71E | 217 | 68E | ? | 26 |
| 3 | DSO – 4 | -9 | 20W | 308 | 23W | 9 | 20 |
| 4 | HS – 1 | -17 | 16E | 272 | 13E | 0.5 | 24 |
| 5 | CAO – 6 | -18 | 38E | 250 | 35E | 3 | 25 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.