Daily Sunspot Evaluation
Observation Sheet Thursday, 2 May 2002
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)
- 60
- Relative number (R)
- 170
- Observer
- ZFB
- Reading
- counts consistent, some coordinates doubtful
- File
- 20020502.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 12 | 44W | 32 ⚠ | 47W | 1.5 | |
| 2 | DAC – 14 | 13 | 32W | 313 | 35W | 4 | |
| 3 | CRO – 7 | 12 | 20W | 301 | 23W | 5 | |
| 4 | BAO – 4 | 20 | 02W | 283 | 05W | ~3 | |
| 5 | DAO – 6 | 15 | 15E | 266 | 12E | ~6 | |
| 6 | HA – 5 | 16 | 45E | 236 | 42E | 3.5 | |
| 7 | HS – 1 | 17 | 62E | 219 | 59E | ~2 | |
| 8 | HS – 3 | -29 | 38E | 243 | 35E | 2 | |
| 9 | CRO – 6 | -18 | 52E | 229 | 49E | ~5 | |
| 10 | DAO – 4 | -29 | 35E | 226 ⚠ | 52E | 7.5 | |
| 11 | EAO – 9 | -18 | 73E | 208 | 70E | ~14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.