| Date | Solar flux | Sunspot number | Planetary A index | K indices (3-hour intervals) | Min-max solar wind speed (km/sec) | Number of flares (events) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STAR | SEC | STAR | SEC | Daily low - high | Planetary | Boulder | C | M | X | |||
| 20041231 | 98.5 | 49 | 60 | 7.6 | 8 | 4-12 | 31323211 | 22323321 | 426-491 | 4 | 1 | |
| 20041230 | 100.0 | 39 | 34 | 14.9 | 15 | 7-27 | 23433423 | 22433432 | 406-588 | 6 | 2 | |
| 20041229 | 98.5 | 18 | 27 | 18.4 | 18 | 6-32 | 44344222 | 34344332 | 411-480 | 5 | 2 | |
| 20041228 | 105.2 | 32 | 27 | 15.5 | 16 | 7-27 | 32232344 | 32232344 | 444-498 | 15 | ||
| 20041227 | 96.9 | 20 | 11 | 7.0 | 7 | 3-15 | 11311132 | 12311232 | 448-581 | |||
| 20041226 | 91.7 | 22 | 16 | 9.9 | 10 | 7-15 | 33222322 | 33231222 | 470-558 | |||
| 20041225 | 93.0 | 16 | 26 | 12.0 | 12 | 5-27 | 34421122 | 35411222 | 362-574 | |||
| 20041224 | 97.2 | 24 | 42 | 3.8 | 4 | 2-6 | 00011211 | 10021221 | 351-416 | 1 | ||
| 20041223 | 96.4 | 41 | 47 | 5.5 | 6 | 4-7 | 12111222 | 12122223 | 351-456 | 2 | ||
| 20041222 | 98.8 | 50 | 47 | 19.4 | 19 | 6-48 | 34453322 | 24453321 | 396-561 | 2 | ||
| 20041221 | 101.0 | 36 | 25 | 12.3 | 12 | 3-39 | 21352322 | 21342312 | 350-473 | |||
| 20041220 | 93.9 | 25 | 30 | 3.5 | 4 | 2-6 | 20111111 | 21111212 | 344-417 | |||
| 20041219 | 94.0 | 20 | 29 | 3.8 | 4 | 2-6 | 10111211 | 10111221 | 379-519 | 1 | ||
| 20041218 | 90.6 | 28 | 40 | 11.9 | 12 | 3-27 | 44223211 | 33223221 | 476-669 | |||
| 20041217 | 89.9 | 52 | 40 | 15.0 | 15 | 9-27 | 34332323 | 35432322 | 538-662 | |||
| 20041216 | 90.0 | 13 | 14 | 10.3 | 10 | 3-22 | 13212243 | 13213234 | 369-581 | |||
| 20041215 | 89.3 | 11 | 28 | 5.5 | 6 | 3-9 | 11211222 | 11202222 | 349-423 | |||
| 20041214 | 89.3 | 13 | 18 | 7.1 | 7 | 0-18 | 01232122 | 11233221 | 348-433 | |||
| 20041213 | 89.7 | 35 | 22 | 10.9 | 11 | 3-32 | 43311211 | 44312311 | 350-472 | |||
| 20041212 | 90.5 | 28 | 26 | 35.8 | 36 | 15-56 | 54554533 | 54453433 | 361-496 | |||
| 20041211 | 89.8 | 36 | 16 | 15.1 | 15 | 3-27 | 11324344 | 11424443 | 425-573 | |||
| 20041210 | 84.8 | 25 | 39 | 10.5 | 10 | 5-18 | 12233233 | 12233223 | 358-460 | |||
| 20041209 | 87.4 | 33 | 39 | 7.9 | 8 | 3-22 | 21142221 | 21143212 | 372-433 | 1 | ||
| 20041208 | 80.9 | 36 | 40 | 9.6 | 10 | 6-15 | 32322232 | 32422232 | 413-511 | 2 | ||
| 20041207 | 89.7 | 25 | 26 | 14.8 | 15 | 7-39 | 25233332 | 24333332 | 423-553 | |||
| 20041206 | 93.2 | 26 | 47 | 18.9 | 19 | 4-27 | 13444443 | 13443433 | 368-474 | |||
| 20041205 | 95.9 | 45 | 46 | 8.0 | 8 | 0-32 | 01421221 | 02421221 | 288-461 | |||
| 20041204 | 97.4 | 36 | 43 | 1.1 | 1 | 0-3 | 00000100 | 00002000 | 289-376 | |||
| 20041203 | 100.8 | 39 | 58 | 3.3 | 3 | 2-4 | 01101111 | 01102220 | 368-451 | |||
| 20041202 | 105.6 | 47 | 62 | 4.1 | 4 | 2-7 | 11201211 | 11201221 | 438-564 | 1 | ||
| 20041201 | 111.0 | 51 | 52 | 12.8 | 13 | 4-48 | 13521212 | 13422223 | 506-705 | 5 | 1 | |
This page is normally updated once a day by Jan Alvestad. All values are preliminary.