Daily Sunspot Evaluation
Observation Sheet Monday, 28 March 1983
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)
- 4
- Number of spots (f)
- 9
- Relative number (R)
- 49
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 4 | -14 | 25E | 158 | 22E | 5.25 | 72 |
| 2 | HAX – 1 | -10 | 37E | 146 | 34E | 1.5 | 73 |
| 3 | CAO – 3 | -17 | 56E | 127 | 53E | 2 | 74 |
| 4 | AXX – 1 | -22 | 60E | 123 | 57E | 75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.