Daily Sunspot Evaluation
Observation Sheet Thursday, 3 January 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)
- 12
- Number of spots (f)
- 52
- Relative number (R)
- 172
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20020103.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 6 | 14 | 59W | 106 | 59W | ~10 | |
| 2 | CRI – 9 | 7 | 33W | 82 | 35W | ~5 | |
| 3 | HR – 2 | 10 | 23W | 72 | 25W | ~1 | |
| 4 | HS – 1 | 5 | 11W | 60 | 13W | ~1 | |
| 5 | HS – 2 | 5 | 06E | 43 | 04E | 2.5 | |
| 6 | CAO – 5 | -7 | 75W | 124 | 77W | ~12 | |
| 7 | HS – 1 | -4 | 50W | 99 | 52W | 1.5 | |
| 8 | CSO – 2 | -8 | 39W | 88 | 41W | 4 | |
| 9 | DSO – 2 | -21 | 38W | 87 | 40W | 4.5 | |
| 10 | AX – 2 | -19 | 12E | 37 | 10E | 2 | |
| 11 | HA – 1 | -23 | 16E | 33 | 14E | 1 | |
| 12 | EAC – 19 | -23 | 32E | 17 | 30E | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.