Daily Sunspot Evaluation
Observation Sheet Thursday, 24 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)
- 14
- Number of spots (f)
- 55
- Relative number (R)
- 195
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20020124.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 21 | 66W | 199 | 69W | ~6 | |
| 2 | EAI – 15 | 18 | 18W | 151 | 21W | ~11 | |
| 3 | CAO – 5 | 7 | 13E | 120 | 10E | 5 | |
| 4 | BXO – 3 | 11 | 20E | 113 | 17E | 4.5 | |
| 5 | ? – 1 | -35 | 70W | 203 | 73W | ~1 | |
| 6 | ? – 4 | -14 | 70W | 203 | 73W | ~3 | |
| 7 | HA – 1 | -4 | 67W | 200 | 70W | ~1 | |
| 8 | CAI – 5 | -15 | 15W | 146 | 16W | 3 | |
| 9 | AX – 1 | -9 | 08W | 141 | 11W | - | |
| 10 | HH – 7 | -9 | 02E | 131 | 01W | 5 | |
| 11 | AX – 3 | -4 | 12E | 121 | 09E | 1.5 | |
| 12 | AX – 1 | -18 | 29E | 104 | 26E | - | |
| 13 | CRO – 4 | -3 | 41E | 92 | 38E | ~6 | |
| 14 | HA – 1 | -25 | 65E | 68 | 62E | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.