Daily Sunspot Evaluation
Observation Sheet Sunday, 21 March 2004
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)
- 3
- Number of spots (f)
- 34
- Relative number (R)
- 64
- Observer
- TG
- Reading
- all checks consistent
- File
- 20040321.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAO – 11 | 14 | 44E | 143 | 41E | ~12 | 44 |
| 2 | CAI – 22 | -5 | 11E | 176 | 08E | ~12 | 40 |
| 3 | HS – 1 | -1 | 36E | 151 | 33E | 2 | 42 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.