| Date | Measured Solar flux |
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 | |||
| 20100430 | 78.6 | 12 | 12 | 3.6 | 4 | 2-6 | 21101101 | 11102111 | 339-439 | 1 | ||
| 20100429 | 76.2 | 0 | 0 | 6.4 | 6 | 2-15 | 33001111 | 34012112 | 309-363 | |||
| 20100428 | 76.1 | 11 | 12 | 4.0 | 4 | 0-6 | 10102112 | 11211211 | 286-336 | |||
| 20100427 | 74.8 | 0 | 0 | 4.3 | 4 | 0-7 | 21011212 | 21011212 | 303-359 | |||
| 20100426 | 76.0 | 0 | 0 | 2.3 | 2 | 0-3 | 01101001 | 00101111 | 290-348 | |||
| 20100425 | 75.4 | 0 | 0 | 3.3 | 3 | 0-7 | 12001101 | 12000001 | 323-354 | |||
| 20100424 | 74.2 | 0 | 0 | 8.4 | 8 | 2-22 | 34011122 | 45111211 | 333-428 | |||
| 20100423 | 75.0 | 0 | 0 | 13.1 | 13 | 4-48 | 54211122 | 53202112 | 356-445 | |||
| 20100422 | 76.1 | 0 | 0 | 6.0 | 6 | 2-12 | 11101233 | 11211222 | 347-419 | |||
| 20100421 | 76.1 | 11 | 0 | 5.9 | 6 | 3-9 | 12212211 | 02223211 | 327-422 | |||
| 20100420 | 75.6 | 0 | 0 | 4.6 | 5 | 3-6 | 11112112 | 10212212 | 290-347 | |||
| 20100419 | 75.4 | 0 | 0 | 4.6 | 5 | 3-6 | 12221111 | 12221211 | 308-358 | |||
| 20100418 | 74.7 | 0 | 0 | 2.5 | 2 | 0-5 | 11010101 | 20100111 | 329-361 | |||
| 20100417 | 73.9 | 0 | 0 | 2.0 | 2 | 0-5 | 10000011 | 20101011 | 343-420 | |||
| 20100416 | 74.8 | 0 | 0 | 3.6 | 4 | 2-6 | 21000111 | 22000111 | 383-456 | |||
| 20100415 | 74.5 | 0 | 0 | 8.0 | 8 | 0-27 | 43111101 | 33211211 | 419-485 | |||
| 20100414 | 75.1 | 0 | 12 | 9.3 | 9 | 2-48 | 11001125 | 11011124 | 330-451 | |||
| 20100413 | 74.9 | 14 | 14 | 3.1 | 3 | 0-6 | 10110102 | 00220011 | 346-410 | |||
| 20100412 | 74.5 | 12 | 14 | 22.0 | 22 | 4-94 | 64311321 | 74421321 | 352-436 | |||
| 20100411 | 74.6 | 15 | 0 | 8.5 | 8 | 0-15 | 10103333 | 10203333 | 347-452 | |||
| 20100410 | 75.0 | 0 | 11 | 2.9 | 3 | 0-5 | 11000111 | 11101111 | 325-454 | |||
| 20100409 | 76.0 | 11 | 11 | 6.5 | 6 | 3-18 | 32111111 | 33221211 | 387-520 | |||
| 20100408 | 75.7 | 11 | 23 | 10.8 | 11 | 3-32 | 42222123 | 43232113 | 532-584 | |||
| 20100407 | 76.3 | 35 | 25 | 21.3 | 21 | 7-32 | 42444333 | 33544323 | 515-623 | |||
| 20100406 | 77.5 | 37 | 41 | 46.0 | 46 | 27-67 | 66454554 | 56444424 | 461-634 | |||
| 20100405 | 79.3 | 45 | 41 | 48.6 | 49 | 12-154 | 34476544 | 24475432 | 465-832 | |||
| 20100404 | 78.7 | 30 | 40 | 13.0 | 13 | 4-22 | 33412234 | 33412223 | 453-538 | |||
| 20100403 | 77.4 | 50 | 27 | 7.8 | 8 | 2-15 | 21102323 | 21102222 | 417-555 | |||
| 20100402 | 76.2 | 26 | 28 | 12.5 | 12 | 7-18 | 32332223 | 32443322 | 404-544 | |||
| 20100401 | 79.2 | 24 | 25 | 11.9 | 12 | 3-22 | 33224313 | 33323413 | 342-436 | |||
This page is normally updated once a day by Jan Alvestad. All values are preliminary.