Daily Sunspot Evaluation
Observation Sheet Thursday, 1 March 2001
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)
- 16
- Relative number (R)
- 56
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010301.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 7 | 12 | 37W | 193 | 39W | 4.5 | |
| 2 | DAO – 6 | 9 | 33E | 123 | 31E | 6 | |
| 3 | HA – 1 | -11 | 42W | 198 | 44W | ~1 | |
| 4 | HA – 2 | -10 | 22W | 178 | 24W | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.