Daily Sunspot Evaluation
Observation Sheet Friday, 15 March 2002
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)
- 8
- Number of spots (f)
- 61
- Relative number (R)
- 141
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20020315.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 17 | 25W | 219 | 28W | 1 | 109 |
| 2 | HA – 1 | -5 | 75W | 269 | 78W | ~2 | |
| 3 | HA – 1 | -8 | 59W | 253 | 62W | 0.5 | |
| 4 | EKO – 35 | -10 | 05E | 189 | 02E | 15.5 | |
| 5 | HS – 5 | -21 | 16E | 178 | 13E | ~2 | |
| 6 | DAO – 10 | -32 | 19E | 175 | 16E | ~5 | |
| 7 | HA – 3 | -23 | 48E | 146 | 45E | 1 | |
| 8 | ESO – 4 | -19 | 56E | 138 | 53E | 10.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.