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) | |
|---|---|---|---|---|---|---|---|---|
| № 9387 | N09 | E59 | 03 | 0030 | Beta | Mar 25, 2001 | Apr 1, 2001 | Apr 15, 2001 |
| № 9386 | N04 | W27 | 01 | 0010 | Alpha | Mar 19, 2001 | Mar 26, 2001 | Apr 8, 2001 |
| № 9384 | N13 | W62 | 08 | 0100 | Beta | Mar 16, 2001 | Mar 23, 2001 | Apr 6, 2001 |
| № 9380 | S12 | W29 | 02 | 0010 | Beta | Mar 19, 2001 | Mar 26, 2001 | Apr 8, 2001 |
| № 9373 | S07 | W58 | 21 | 0270 | Beta-Gamma | Mar 17, 2001 | Mar 23, 2001 | Apr 6, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, March. Gray background - average solar cycle.
