Daily Sunspot Evaluation
Observation Sheet Saturday, 28 March 1992
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)
- 6
- Number of spots (f)
- 75
- Relative number (R)
- 135
- Observer
- TA
- Reading
- all checks consistent
- File
- 19920328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 5 | 73W | 57 | 75W | - | 136 |
| 2 | FKC – 41 | 6 | 12E | 332 | 10E | 18 | 141 |
| 3 | HS – 1 | -10 | 33W | 17 | 35W | 15 | 139 |
| 4 | BXO – 2 | -16 | 01W | 345 | 03W | 4 | 143 |
| 5 | EKO – 16 | -9 | 07E | 337 | 05E | 11 | 142 |
| 6 | BXI – 14 | -17 | 30E | 314 | 28E | 55 | 148 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.