Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9395 | S12 | E72 | 01 | 0030 | Alpha | Mar 30, 2001 | Apr 6, 2001 | Apr 20, 2001 |
| № 9394 | N10 | E61 | 01 | 0010 | Alpha | Mar 30, 2001 | Apr 5, 2001 | Apr 19, 2001 |
| № 9393 | N20 | E65 | 03 | 0700 | Beta | Mar 30, 2001 | Apr 6, 2001 | Apr 20, 2001 |
| № 9392 | N20 | W45 | 08 | 0040 | Beta | Mar 22, 2001 | Mar 28, 2001 | Apr 11, 2001 |
| № 9390 | N16 | E34 | 17 | 0130 | Beta | Mar 28, 2001 | Apr 3, 2001 | Apr 17, 2001 |
| № 9389 | S13 | E39 | 11 | 0130 | Beta | Mar 28, 2001 | Apr 4, 2001 | Apr 17, 2001 |
| № 9387 | N09 | E07 | 11 | 0140 | Beta | Mar 26, 2001 | Apr 1, 2001 | Apr 15, 2001 |
| № 9385 | S12 | W39 | 01 | 0000 | Alpha | Mar 22, 2001 | Mar 29, 2001 | Apr 11, 2001 |
| № 9376 | S13 | W84 | 02 | 0030 | Beta | Mar 19, 2001 | Mar 25, 2001 | Apr 8, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, March. Gray background - average solar cycle.
