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) | |
|---|---|---|---|---|---|---|---|---|
| № 9381 | S19 | E37 | 03 | 0020 | Beta | Mar 18, 2001 | Mar 25, 2001 | Apr 7, 2001 |
| № 9380 | S10 | E53 | 01 | 0010 | Alpha | Mar 19, 2001 | Mar 26, 2001 | Apr 8, 2001 |
| № 9379 | N31 | E27 | 02 | 0010 | Alpha | Mar 17, 2001 | Mar 24, 2001 | Apr 7, 2001 |
| № 9376 | S13 | E46 | 03 | 0010 | Beta | Mar 18, 2001 | Mar 25, 2001 | Apr 8, 2001 |
| № 9373 | S07 | E20 | 37 | 0190 | Beta | Mar 17, 2001 | Mar 23, 2001 | Apr 6, 2001 |
| № 9370 | N11 | W82 | 04 | 0040 | Beta | Mar 9, 2001 | Mar 16, 2001 | Mar 29, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, March. Gray background - average solar cycle.
