Daily Sunspot Evaluation
Observation Sheet Thursday, 16 January 2003
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)
- 10
- Number of spots (f)
- 48
- Relative number (R)
- 148
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20030116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 14 | 09W | 110 | 11W | ~1 | 17 |
| 2 | HA – 5 | 8 | 37E | 64 | 35E | 3.5 | 19 |
| 3 | CAO – 9 | 10 | 49E | 52 | 47E | ~9 | 20 |
| 4 | HA – 3 | 14 | 75E | 26 | 73E | ~3 | 21 |
| 5 | CAO – 4 | -16 | 52W | 153 | 54W | 9 | 10 |
| 6 | HA – 8 | -13 | 27W | 130 | 31W | 5 | 13 |
| 7 | HA – 5 | -27 | 27W | 128 | 29W | 5 | 12 |
| 8 | BXO – 5 | -15 | 19W | 120 | 21W | 5 | 16 |
| 9 | HS – 3 | -14 | 01W | 102 | 03W | ~2 | 15 |
| 10 | HA – 5 | -16 | 12E | 89 | 10E | ~2 | 18 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.