Daily Sunspot Evaluation
Observation Sheet Friday, 14 September 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)
- 9
- Number of spots (f)
- 149
- Relative number (R)
- 239
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20010914.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 14 | 21 | 44W | 117 | 47W | ~10 | |
| 2 | CAI – 7 | 16 | 18E | 55 | 15E | 5 | |
| 3 | CAO – 6 | 9 | 53E | 20 | 50E | 4 | |
| 4 | HA – 2 | -16 | 54W | 127 | 57W | ~2 | |
| 5 | CRO – 6 | -22 | 47W | 120 | 50W | ~4 | |
| 6 | FKI – 30 | -28 | 31W | 104 | 34W | ~23 | |
| 7 | CSI – 9 | -20 | 30W | 103 | 33W | 6 | |
| 8 | EAC – 44 | -13 | 22W | 95 | 25W | 12 | |
| 9 | EAC – 31 | -12 | 52E | 21 | 49E | 15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.