Daily Sunspot Evaluation
Observation Sheet Monday, 30 April 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)
- 43
- Relative number (R)
- 113
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20010430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FAI – 9 | 17 | 68W | 153 | 71W | 25 | |
| 2 | DAC – 15 | 6 | 06E | 79 | 03E | 11 | |
| 3 | HS – 1 | 26 | 19E | 66 | 16E | 4.5 | |
| 4 | AX – 1 | 13 | 25E | 60 | 22E | ||
| 5 | EAC – 13 | 24 | 60E | 25 | 57E | 14 | |
| 6 | HS – 1 | -11 | 36W | 121 | 39W | 2.5 | |
| 7 | BXO – 3 | -11 | 48E | 37 | 45E | ~5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.