Daily Sunspot Evaluation
Observation Sheet Saturday, 7 March 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)
- 5
- Number of spots (f)
- 24
- Relative number (R)
- 74
- Observer
- YK
- Reading
- all checks consistent
- File
- 19980307.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 9 | 22 | 65W | 209 | 69W | 7.0 | 42 |
| 2 | AX – 5 | 45 | 64E | 79 | 61E | 2.0 | 4546 |
| 3 | ? – 1 | -25 | 84W | 227 | 87W | 41 | |
| 4 | CRO – 8 | -18 | 46E | 97 | 43E | 5.0 | 4645 |
| 5 | AX – 1 | -42 | 74E | 69 | 71E | 1.0 | 4946 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.