| Date | Solar flux at Earth | Sunspot number | Planetary A index | K indices (3-hour intervals) | Min-max solar wind speed (km/sec) | Number of flares (events) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STAR | NOAA | STAR | NOAA | Daily low - high | Planetary | Boulder | C | M | X | |||
| 20090430 | 69.4 | 11 | 12 | 3.0 | 3 | 0-6 | 10002101 | 11010000 | 289-325 | |||
| 20090429 | 69.5 | 14 | 15 | 3.0 | 3 | 0-5 | 00001111 | 11112111 | 287-353 | |||
| 20090428 | 68.8 | 0 | 0 | 2.4 | 2 | 0-4 | 00001111 | 01101111 | 286-356 | |||
| 20090427 | 67.7 | 11 | 0 | 4.4 | 4 | 0-9 | 22011111 | 22020101 | 314-359 | |||
| 20090426 | 69.2 | 0 | 0 | 4.8 | 5 | 3-6 | 11111212 | 01121002 | 335-381 | |||
| 20090425 | 69.4 | 0 | 0 | 3.9 | 4 | 0-6 | 11011212 | 01011212 | 364-402 | |||
| 20090424 | 69.7 | 0 | 0 | 5.3 | 5 | 3-7 | 21212121 | 11212321 | 317-414 | |||
| 20090423 | 70.6 | 0 | 0 | 3.1 | 3 | 0-6 | 00011121 | 11011100 | 337-364 | |||
| 20090422 | 71.1 | 0 | 0 | 4.3 | 4 | 0-6 | 21011102 | 22121102 | 356-398 | |||
| 20090421 | 71.0 | 11 | 11 | 4.9 | 5 | 3-7 | 11211111 | 11322101 | 370-436 | |||
| 20090420 | 69.8 | 0 | 0 | 4.0 | 4 | 0-7 | 22101201 | 22211211 | 400-449 | |||
| 20090419 | 70.1 | 0 | 0 | 4.4 | 4 | 2-7 | 22101012 | 22201010 | 421-470 | |||
| 20090418 | 69.9 | 0 | 0 | 8.3 | 8 | 3-15 | 23312212 | 23322122 | 404-526 | |||
| 20090417 | 69.8 | 0 | 0 | 4.8 | 5 | 0-9 | 20012112 | 21022113 | 341-443 | |||
| 20090416 | 69.9 | 0 | 0 | 5.6 | 6 | 3-12 | 12211213 | 12212322 | 280-419 | |||
| 20090415 | 69.4 | 0 | 0 | 3.1 | 3 | 0-7 | 21001111 | 21012111 | 286-332 | |||
| 20090414 | 69.4 | 0 | 0 | 2.1 | 2 | 0-5 | 10011001 | 10121001 | 310-358 | |||
| 20090413 | 68.4 | 0 | 0 | 3.6 | 4 | 0-9 | 22200001 | 22301100 | 367-433 | |||
| 20090412 | 69.3 | 0 | 0 | 7.3 | 7 | 3-15 | 22211223 | 22311113 | 425-550 | |||
| 20090411 | 69.3 | 0 | 0 | 9.1 | 9 | 4-18 | 32222213 | 42222312 | 454-560 | |||
| 20090410 | 69.4 | 0 | 0 | 7.9 | 8 | 5-18 | 22221132 | 32231221 | 438-535 | |||
| 20090409 | 70.1 | 0 | 0 | 12.0 | 12 | 5-22 | 34321322 | 23321311 | 344-450 | |||
| 20090408 | 70.0 | 0 | 0 | 4.9 | 5 | 0-9 | 00112222 | 11212322 | 284-345 | |||
| 20090407 | 70.2 | 0 | 0 | 2.4 | 2 | 0-4 | 00111001 | 10121101 | 291-357 | |||
| 20090406 | 68.8 | 0 | 0 | 2.6 | 3 | 0-5 | 10011101 | 00022221 | 345-383 | |||
| 20090405 | 70.4 | 0 | 0 | 4.0 | 4 | 3-5 | 11111111 | 11220111 | 278-368 | |||
| 20090404 | 70.1 | 0 | 0 | 1.5 | 2 | 0-4 | 00000101 | 00001101 | 272-293 | |||
| 20090403 | 70.4 | 0 | 0 | 2.4 | 2 | 0-5 | 00001111 | 00101201 | 272-303 | |||
| 20090402 | 70.6 | 0 | 0 | 2.6 | 3 | 0-7 | 10001112 | 10111100 | 299-349 | |||
| 20090401 | 70.8 | 0 | 0 | 3.8 | 4 | 0-7 | 10011222 | 10021121 | 301-353 | |||
This page is normally updated once a day by Jan Alvestad. All values are preliminary.