Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 January 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)
- 9
- Number of spots (f)
- 30
- Relative number (R)
- 120
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20030107.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 2 | 9 | 06E | 213 | 03E | 4 | 8 |
| 2 | HA – 2 | 12 | 30E | 189 | 27E | ~1.5 | 6 |
| 3 | DAO – 2 | -19 | 82W | 301 | 85W | 7 | 2 |
| 4 | DAO – 2 | -8 | 80W | 299 | 83W | 7 | 3 |
| 5 | HA – 1 | -5 | 70W | 289 | 73W | ~1 | 7 |
| 6 | DAC – 9 | -9 | 01E | 218 | 02W | 8.5 | 1 |
| 7 | HA – 6 | -23 | 07E | 212 | 04E | 4.5 | 5 |
| 8 | HA – 2 | -15 | 30E | 189 | 27E | 2.5 | 9 |
| 9 | DAO – 4 | -16 | 70E | 149 | 67E | 8 | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.