Daily Sunspot Evaluation
Observation Sheet Friday, 10 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)
- 10
- Number of spots (f)
- 64
- Relative number (R)
- 164
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20010810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 17 | 26 | 65W | 240 | 68W | 018 | |
| 2 | DAC – 14 | 16 | 49W | 224 | 52W | 09 | |
| 3 | AX – 1 | 11 | 31W | 206 | 34W | - | |
| 4 | AX – 2 | 17 | 08W | 183 | 11W | 01 | |
| 5 | HS – 1 | 7 | 35E | 140 | 32E | 2 | |
| 6 | AX – 1 | 16 | 62E | 113 | 59E | - | |
| 7 | DHI – 9 | -13 | 45W | 220 | 48W | 7 | |
| 8 | BXO – 9 | -3 | 14E | 161 | 11E | 04 | |
| 9 | HH – 2 | -11 | 16E | 159 | 13E | 3 | |
| 10 | DAC – 8 | -9 | 56E | 119 | 53E | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.