Daily Sunspot Evaluation
Observation Sheet Friday, 22 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)
- 9
- Number of spots (f)
- 66
- Relative number (R)
- 156
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20020222.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 3 | 4 | 22W | 135 | 24W | 4 | |
| 2 | HA – 5 | 8 | 54E | 57 | 52E | 3 | |
| 3 | ? – 7 | -11 | 81W | 192 | 83W | ? | 93 |
| 4 | ERC – 31 | -20 | 29W | 140 | 31W | ~15 | |
| 5 | CAI – 10 | -22 | 11W | 122 | 13W | ~7.5 | |
| 6 | AX – 1 | -19 | 02E | 109 | 00 | - | |
| 7 | AX – 4 | -19 | 13E | 98 | 11E | ~3 | |
| 8 | AX – 2 | -27 | 70E | 41 | 68E | ~2 | |
| 9 | BXO – 3 | -12 | 71E | 40 | 69E | ~4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.