Daily Sunspot Evaluation
Observation Sheet Sunday, 18 May 2003
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)
- 22
- Relative number (R)
- 62
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20030518.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 2 | 20 | 46W | 337 | 48W | ~1 | 420 |
| 2 | HA – 11 | -17 | 12W | 303 | 14W | ~3 | 423 |
| 3 | CAO – 2 | -9 | 04E | 287 | 02E | 2 | 431 |
| 4 | DAO – 7 | -13 | 45E | 246 | 43E | 9 | 429 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.