Daily Sunspot Evaluation
Observation Sheet Thursday, 22 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)
- 7
- Number of spots (f)
- 55
- Relative number (R)
- 125
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010322.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 14 | 68W | 308 | 71W | ~2 | |
| 2 | DAO – 5 | 20 | 21W | 261 | 24W | 6 | |
| 3 | DAC – 19 | 8 | 30E | 210 | 27E | ~10 | |
| 4 | EKC – 17 | 15 | 60E | 180 | 53E | ~19 | |
| 5 | ? – 3 | -7 | 81W | 321 | 84W | ? | |
| 6 | HA – 2 | -11 | 56E | 184 | 53E | 1 | |
| 7 | DAC – 7 | -12 | 68E | 172 | 65E | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.