| 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 SDO | NOAA | STAR | NOAA | Daily ap range | Planetary | Boulder | C | M | X | |||
| 20110228 | 95.8 | 95 | 54 | 2.6 | 3 | 0-5 | 00101011 | 00111121 | 274-299 | 8 | 1 | |
| 20110227 | 90.4 | 56 | 44 | 1.8 | 2 | 0-5 | 10001101 | 10001110 | 282-329 | 1 | ||
| 20110226 | 90.2 | 62 | 49 | 3.5 | 4 | 2-5 | 01111111 | 01221222 | 297-326 | 1 | ||
| 20110225 | 88.2 | 84 | 31 | 2.6 | 3 | 0-5 | 00001111 | 00111111 | 294-357 | 3 | ||
| 20110224 | 88.9 | 29 | 23 | 2.8 | 3 | 0-5 | 01000111 | 01011210 | 297-348 | 2 | 1 | |
| 20110223 | 89.3 | 41 | 27 | 4.0 | 4 | 0-9 | 00001222 | 00102310 | 301-353 | 1 | ||
| 20110222 | 90.9 | 53 | 34 | 1.3 | 1 | 0-5 | 10010000 | 10020101 | 356-431 | |||
| 20110221 | 96.7 | 71 | 60 | 6.8 | 7 | 4-9 | 22122222 | 23132321 | 331-429 | 10 | ||
| 20110220 | 104.6 | 92 | 103 | 7.0 | 7 | 4-12 | 11231222 | 12321232 | 368-484 | 3 | ||
| 20110219 | 109.4 | 151 | 79 | 5.1 | 5 | 3-7 | 22211111 | 22312111 | 390-577 | 12 | ||
| 20110218 | 124.8 | 159 | 101 | 17.4 | 17 | 5-39 | 34533321 | 34433332 | 298-644 | 15 | 5 | |
| 20110217 | 110.9 | 140 | 51 | 2.0 | 2 | 0-5 | 00000111 | 00000122 | 300-348 | 11 | ||
| 20110216 | 114.1 | 143 | 60 | 1.5 | 2 | 0-6 | 02000001 | 02111110 | 350-459 | 12 | 3 | |
| 20110215 | 112.8 | 177 | 100 | 3.9 | 4 | 3-7 | 11112112 | 11121222 | 345-472 | 5 | 1 | |
| 20110214 | 112.6 | 174 | 90 | 7.5 | 8 | 0-32 | 00000344 | 00111343 | 279-411 | 9 | 1 | |
| 20110213 | 106.8 | 165 | 84 | 1.9 | 2 | 0-4 | 00100011 | 00201200 | 286-360 | 4 | 1 | |
| 20110212 | 95.6 | 130 | 63 | 4.3 | 4 | 2-7 | 12211101 | 11212110 | 348-417 | 1 | ||
| 20110211 | 91.2 | 87 | 54 | 3.6 | 4 | 0-9 | 11000122 | 01011222 | 320-411 | |||
| 20110210 | 91.4 | 82 | 38 | 3.0 | 3 | 0-7 | 00211001 | 01321111 | 339-393 | 4 | ||
| 20110209 | 88.7 | 54 | 54 | 1.6 | 2 | 0-3 | 00010101 | 10120100 | 299-371 | 1 | 1 | |
| 20110208 | 89.7 | 89 | 71 | 4.1 | 4 | 0-12 | 23010011 | 23121011 | 362-441 | 2 | ||
| 20110207 | 82.3 | 42 | 28 | 3.3 | 3 | 0-5 | 10011111 | 20022121 | 402-549 | |||
| 20110206 | 80.2 | 27 | 41 | 11.0 | 11 | 6-15 | 23323222 | 23433322 | 455-560 | |||
| 20110205 | 81.0 | 48 | 26 | 13.0 | 13 | 4-32 | 43321232 | 43422332 | 528-617 | |||
| 20110204 | 82.1 | 59 | 45 | 21.1 | 21 | 4-67 | 13211265 | 13222245 | 295-557 | |||
| 20110203 | 80.4 | 44 | 32 | 1.3 | 1 | 0-3 | 00100001 | 00210200 | 289-353 | |||
| 20110202 | 79.2 | 51 | 22 | 5.3 | 5 | 2-12 | 31112110 | 32122201 | 349-500 | |||
| 20110201 | 79.9 | 22 | 22 | 8.4 | 8 | 3-22 | 21211431 | 22322422 | 281-500 | |||
This page is normally updated once a day by Jan Alvestad. All values are preliminary.