Daily Sunspot Evaluation
Observation Sheet Thursday, 5 April 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)
- 12
- Number of spots (f)
- 70
- Relative number (R)
- 190
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010405.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 4 | 22 | 75W | 129 | 71W | 5 | |
| 2 | DSO – 4 | 9 | 64W | 118 | 66W | 7 | |
| 3 | DAO – 6 | 16 | 37W | 91 | 39W | 8 | |
| 4 | DAO – 3 | 9 | 31W | 85 | 33W | 5.5 | |
| 5 | HH – 1 | 26 | 27W | 81 | 29W | 3.5 | |
| 6 | EKC – 11 | 26 | 67E | 347 | 65E | 14 | |
| 7 | DKI – 13 | -10 | 64W | 118 | 66W | 9 | |
| 8 | HS – 1 | -15 | 07E | 47 | 05E | 0.5 | |
| 9 | HR – 2 | -25 | 37E | 17 | 35E | 0.5 | |
| 10 | DAC – 14 | -8 | 36E | 18 | 34E | 5 | |
| 11 | EKC – 10 | -21 | 56E | 358 | 54E | 10.5 | |
| 12 | ? – 1 | -7 | 85E | 329 | 83E | ? |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.