Daily Sunspot Evaluation
Observation Sheet Friday, 19 September 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)
- 16
- Relative number (R)
- 66
- Observer
- TG
- Reading
- all checks consistent
- File
- 20030919.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 4 | 13 | 69W | 161 | 72W | 9 | 258 |
| 2 | HR – 3 | 16 | 31E | 61 | 28E | ~1 | 257 |
| 3 | HS – 1 | 9 | 56E | 36 | 53E | 2 | 260 |
| 4 | HA – 2 | -10 | 64W | 156 | 67W | 4 | 259 |
| 5 | DAO – 6 | -11 | 16W | 108 | 19W | 7 | 256 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.