Daily Sunspot Evaluation
Observation Sheet Friday, 2 April 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)
- 5
- Number of spots (f)
- 50
- Relative number (R)
- 100
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 2 | 8 | 57W | 197 | 58W | 3.5 | 85 |
| 2 | EKO – 12 | 6 | 16W | 156 | 17W | 11.5 | 79 |
| 3 | DAI – 17 | -21 | 13W | 153 | 14W | 6.5 | 84 |
| 4 | CAI – 12 | -12 | 00 | 140 | 01W | 4 | 81 |
| 5 | HA – 7 | -5 | 31E | 109 | 30E | 4 | 82 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.