Daily Sunspot Evaluation
Observation Sheet Friday, 1 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)
- 9
- Number of spots (f)
- 90
- Relative number (R)
- 180
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20020301.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 2 | 25 | 66W | 85 | 69W | 2 | 103 |
| 2 | EAC – 24 | 21 | 38W | 57 | 41W | 10.5 | |
| 3 | EAC – 30 | 17 | 04E | 15 | 01E | ~13 | |
| 4 | ? – 1 | 15 | 75E | 304 | 72E | 105 | |
| 5 | ? – 3 | -21 | 79W | 93 ⚠ | 82W | ||
| 6 | DAI – 18 | -27 | 23W | 42 | 26W | ~9 | |
| 7 | CRO – 4 | -21 | 12W | 31 | 15W | 5 | |
| 8 | HR – 2 | -14 | 06W | 25 | 09W | ~1 | 106 |
| 9 | DAO – 6 | -7 | 64E | 315 | 61E | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.