Daily Sunspot Evaluation
Observation Sheet Monday, 15 June 1998
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)
- 23
- Relative number (R)
- 63
- Observer
- MB
- Reading
- all checks consistent
- File
- 19980615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 8 | 34 | 12E | 249 | 40E | 04 | 105 |
| 2 | HH – 6 | 17 | 48E | 213 | 46E | 04 | 106 |
| 3 | HR – 8 | -21 | 24E | 237 | 22E | 03 | 107 |
| 4 | ? – 1 | -27 | 82E | 179 | 80E | ? | 108 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.