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) | |
|---|---|---|---|---|---|---|---|---|
| № 9873 | S18 | W21 | 25 | 0110 | Beta | Mar 18, 2002 | Mar 25, 2002 | Apr 8, 2002 |
| № 9872 | S32 | W30 | 05 | 0070 | Beta | Mar 18, 2002 | Mar 25, 2002 | Apr 8, 2002 |
| № 9871 | S19 | E07 | 18 | 0330 | Beta | Mar 21, 2002 | Mar 27, 2002 | Apr 10, 2002 |
| № 9870 | S20 | W35 | 11 | 0090 | Beta | Mar 17, 2002 | Mar 24, 2002 | Apr 7, 2002 |
| № 9866 | S09 | W46 | 16 | 0290 | Beta-Gamma-Delta | Mar 17, 2002 | Mar 23, 2002 | Apr 6, 2002 |
| № 9864 | N18 | W73 | 01 | 0020 | Alpha | Mar 14, 2002 | Mar 21, 2002 | Apr 4, 2002 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1973, January to 2002, March. Gray background - average solar cycle.
