Daily Sunspot Evaluation
Observation Sheet Sunday, 1 February 1998
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)
- 2
- Number of spots (f)
- 5
- Relative number (R)
- 25
- Observer
- YK
- Reading
- all checks consistent
- File
- 19980201.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 28 | 32W | 263 | 35W | 4 | 17 21 |
| 2 | HS – 2 | -35 | 55W | 286 | 58W | 2.5 | 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.