Daily Sunspot Evaluation
Observation Sheet Tuesday, 28 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)
- 11
- Number of spots (f)
- 117
- Relative number (R)
- 227
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 6 | 14 | 75W | 13 | 78W | 6 | |
| 2 | AX – 2 | 16 | 21W | 319 | 24W | ||
| 3 | DSC – 8 | 17 | 31E | 267 | 28E | ~5 | |
| 4 | HH – 1 | 22 | 50E | 248 | 47E | 2.5 | |
| 5 | ? – 8 | 13 | 83E | 215 | 80E | 15 | |
| 6 | ? – 7 | -9 | 81W | 19 | 84W | 8 | |
| 7 | ? – 2 | -16 | 80W | 18 | 83W | ~2 | |
| 8 | HS – 5 | -28 | 18W | 316 | 21W | ~5 | |
| 9 | FKC – 63 | -19 | 01W | 299 | 04W | 20 | |
| 10 | HA – 8 | -20 | 16E | 282 | 13E | ~2.5 | |
| 11 | DAI – 7 | -17 | 61E | 237 | 58E | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.