Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 March 2001
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)
- 6
- Number of spots (f)
- 43
- Relative number (R)
- 103
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20010313.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 5 | 9 | 71W | 69 | 74W | 8 | |
| 2 | AX – 2 | 29 | 36E | 322 | 33E | ~1 | |
| 3 | ESC – 31 | -8 | 31E | 327 | 28E | 13 | |
| 4 | HR – 3 | -19 | 48E | 310 | 45E | ~3 | |
| 5 | AX – 1 | -15 | 56E | 302 | 53E | 0.5 | |
| 6 | AX – 1 | -11 | 64E | 294 | 61E | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.