Daily Sunspot Evaluation
Observation Sheet Tuesday, 15 March 1988
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)
- 32
- Relative number (R)
- 62
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19880315.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 4 | 22 | 37E | 323 | 34E | 3.5 | 47 |
| 2 | AXX – 1 | -16 | 31E | 329 | 28E | 50 | |
| 3 | FKC – 27 | -25 | 45E | 315 | 42E | 19 | 48 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.