Daily Sunspot Evaluation
Observation Sheet Saturday, 13 March 1999
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)
- 4
- Number of spots (f)
- 40
- Relative number (R)
- 80
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19990313.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 21 | 22 | 10E | 276 | 08E | 15 | |
| 2 | CAI – 9 | 19 | 49E | 237 | 47E | 10 | |
| 3 | HK – 2 | -29 | 72W | 358 | 74W | 3 | |
| 4 | CAI – 8 | -24 | 27E | 259 | 25E | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.