Daily Sunspot Evaluation
Observation Sheet Monday, 28 January 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)
- 10
- Number of spots (f)
- 49
- Relative number (R)
- 149
- Observer
- AK0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20020128.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 18 | 75W | 154 | 79W | ? | |
| 2 | BXO – 3 | 13 | 36W | 155 ⚠ | 38W | ~6 | |
| 3 | EKO – 18 | 7 | 31E | 48 | 29E | 12.5 | |
| 4 | ? – 1 | 11 | 79E | 0 | 77E | ? | |
| 5 | HK – 3 | -8 | 54W | 133 | 56W | 5 | |
| 6 | HA – 3 | -24 | 53W | 132 | 55W | ~3 | |
| 7 | HR – 2 | -2 | 19W | 98 | 21W | 0.5 | |
| 8 | CAI – 5 | -23 | 02W | 81 | 04W | ~6 | |
| 9 | HS – 3 | -2 | 46E | 33 | 44E | ~3 | |
| 10 | ESC – 9 | -14 | 57E | 22 | 55E | ~12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.