Daily Sunspot Evaluation
Observation Sheet Monday, 2 March 1981
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)
- 84
- Relative number (R)
- 224
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19810302.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 3 | 20 | 44W | 124 | 46W | 4.25 | |
| 2 | DAO – 5 | 17 | 19W | 99 | 21W | 6.75 | |
| 3 | CAO – 2 | 4 | 63E | 17 | 61E | 5 | |
| 4 | ? – 1 | 9 | 79E | 1 | 77E | ||
| 5 | HAX – 1 | -15 | 57W | 137 | 59W | 1.25 | |
| 6 | CAO – 3 | -19 | 52W | 132 | 54W | 1 | |
| 7 | ARX – 1 | -7 | 35W | 115 | 37W | 0.75 | |
| 8 | EXC – 29 | -16 | 20W | 100 | 22W | 13 | |
| 9 | AXX – 2 | -9 | 19W | 99 | 21W | 15 | |
| 10 | HKI – 16 | -13 | 04E | 76 | 02E | 8.5 | |
| 11 | DKI – 13 | -12 | 28E | 52 | 26E | 0.7 | |
| 12 | BXI – 5 | -12 | 35E | 45 | 33E | 2.5 | |
| 13 | HAX – 1 | -3 | 44E | 36 | 42E | 1.5 | |
| 14 | ? – 2 | -3 | 83E | 357 | 81E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.