Daily Sunspot Evaluation
Observation Sheet Tuesday, 17 June 2003
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)
- 5
- Number of spots (f)
- 19
- Relative number (R)
- 69
- Observer
- MB
- Reading
- all checks consistent
- File
- 20030617.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 3 | 20 | 46W | 301 | 49W | ~3.5 | 163 |
| 2 | CAO – 4 | 28 | 14E | 241 | 11E | ~6 | 161 |
| 3 | DAO – 3 | -16 | 53W | 308 | 56W | ~4 | 155 |
| 4 | AX – 1 | -24 | 18W | 273 | 21W | - | 164 |
| 5 | ? – 8 | -7 | 66E | 189 | 63E | ~5 | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.