Daily Sunspot Evaluation
Observation Sheet Saturday, 23 February 2002
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)
- 33
- Relative number (R)
- 103
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20020223.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 28 | 39E | 58 | 37E | 5 | |
| 2 | HA – 4 | 10 | 40E | 57 | 38E | 3 | |
| 3 | EAC – 15 | -19 | 43W | 140 | 45W | ~15 | |
| 4 | BXI – 5 | -20 | 24W | 121 | 26W | ~5 | |
| 5 | BXO – 3 | -17 | 11W | 108 | 13W | ~5 | |
| 6 | AX – 1 | -10 | 54E | 43 | 52E | - | |
| 7 | AX – 2 | -26 | 54E | 43 | 52E | ~4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.