Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 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)
- 5
- Number of spots (f)
- 53
- Relative number (R)
- 103
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20020219.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 9 | 15 | 61W | 209 | 61W | 9.5 | 37 |
| 2 | HS – 1 | 23 | 55W | 202 | 55W | 2 | |
| 3 | CRO – 6 | 11 | 08W | 156 | 08W | ~5 | |
| 4 | AX – 5 | -11 | 06W | 154 | 06W | ~2 | |
| 5 | FKC – 32 | -19 | 14E | 134 | 14E | 18.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.