Daily Sunspot Evaluation
Observation Sheet Tuesday, 3 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)
- 13
- Number of spots (f)
- 88
- Relative number (R)
- 218
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20010403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 19 | 17 | 75W | 156 | 77W | 16.5 | |
| 2 | HR – 6 | 23 | 48W | 129 | 50W | 4 | |
| 3 | DRI – 12 | 10 | 35W | 116 | 37W | 6.5 | |
| 4 | DRI – 9 | 16 | 09W | 90 | 11W | 4.5 | |
| 5 | HS – 3 | 10 | 05W | 86 | 07W | 2 | |
| 6 | HH – 2 | 25 | 00 | 81 | 02W | 3 | |
| 7 | AX – 1 | -13 | 63W | 144 | 65W | ||
| 8 | HR – 2 | -9 | 58W | 139 | 60W | 2 | |
| 9 | EKC – 19 | -10 | 38W | 119 | 40W | 14.5 | |
| 10 | DRI – 8 | -5 | 22W | 103 | 24W | 4.5 | |
| 11 | HR – 1 | -15 | 34E | 47 | 32E | 0.5 | |
| 12 | HR – 1 | -23 | 53E | 28 | 51E | 0.5 | |
| 13 | ? – 5 | -22 | 83E | 358 | 81E | ? |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.