Daily Sunspot Evaluation
Observation Sheet Thursday, 23 August 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)
- 12
- Number of spots (f)
- 98
- Relative number (R)
- 218
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20010823.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 10 | 78W | 82 | 81W | 04.5 | |
| 2 | CAI – 12 | 16 | 50W | 54 | 53W | 7 | |
| 3 | HS – 1 | 24 | 33W | 37 | 36W | 2 | |
| 4 | EAO – 16 | 28 | 23W | 27 | 26W | 11 | |
| 5 | AX – 1 | 10 | 22W | 26 | 25W | - | |
| 6 | AX – 1 | 17 | 21W | 25 | 24W | - | |
| 7 | DKI – 27 | 15 | 05W | 9 | 08W | 9 | |
| 8 | AX – 1 | 22 | 05W | 9 | 08W | - | |
| 9 | AX – 2 | 0 | 11E | 353 | 08E | 2 | |
| 10 | DAS – 7 | -9 | 65W | 69 | 68W | 7 | |
| 11 | HA – 3 | -28 | 48E | 316 | 45E | 04 | |
| 12 | EKS – 26 | -18 | 67E | 297 | 64E | 26 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.