Daily Sunspot Evaluation
Observation Sheet Sunday, 22 July 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)
- 59
- Relative number (R)
- 129
- Observer
- NA
- Reading
- counts consistent, some coordinates doubtful
- File
- 20010722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 6 | 79W | 140 ⚠ | 76W | ~3 | |
| 2 | HH – 1 | 16 | 540 | 120 | 56W | 3 | |
| 3 | HS – 3 | 19 | 41W | 107 | 43W | ~2 | |
| 4 | DAO – 15 | 9 | 48W | 114 | 50W | ~5.5 | |
| 5 | DSO – 7 | 17 | 06E | 60 | 04E | ~8.5 | |
| 6 | CAI – 8 | -15 | 18W | 84 | 20 | ~6.5 | |
| 7 | ESC – 24 | -22 | 08W | 74 | 10W | ~14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.