Daily Sunspot Evaluation
Observation Sheet Wednesday, 31 March 1993
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)
- 36
- Relative number (R)
- 66
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19930331.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ESI – 20 | 6 | 11E | 157 | 08E | 12 | 79 |
| 2 | CAI – 10 | -12 | 31E | 137 | 28E | 7 | 81 |
| 3 | CAI – 6 | -6 | 65E | 103 | 62E | 11 | 82 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.