Daily Sunspot Evaluation
Observation Sheet Tuesday, 16 March 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)
- 4
- Number of spots (f)
- 22
- Relative number (R)
- 62
- Observer
- TA
- Reading
- all checks consistent
- File
- 19930316.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FAI – 17 | 16 | 06E | 356 | 07E | 19 | 60 |
| 2 | HA – 1 | -18 | 61E | 301 | 62E | 1 | 63 |
| 3 | HA – 1 | -17 | 75E | 287 | 76E | 2 | 66 |
| 4 | ? – 3 | -13 | 83E | 279 | 84E | - | 65 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.