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 | |||
20101231 | 90.9 | 68 | 23 | 4.0 | 4 | 2-7 | 11121200 | 10221211 | 294-366 | 1 | ||
20101230 | 82.9 | 47 | 24 | 4.6 | 5 | 0-12 | 00111321 | 00222311 | 291-365 | |||
20101229 | 82.6 | 24 | 37 | 3.0 | 3 | 0-5 | 10101110 | 21212120 | 331-445 | |||
20101228 | 80.7 | 29 | 19 | 13.3 | 13 | 0-48 | 00015431 | 11125432 | 304-404 | |||
20101227 | 80.1 | 31 | 14 | 1.8 | 2 | 0-4 | 10000001 | 10000211 | 282-410 | |||
20101226 | 80.5 | 24 | 28 | 1.5 | 2 | 0-4 | 10100001 | 11101121 | 354-453 | |||
20101225 | 79.4 | 25 | 28 | 4.9 | 5 | 3-7 | 12211211 | 11221220 | 307-450 | |||
20101224 | 78.6 | 0 | 0 | 3.1 | 3 | 0-7 | 12101100 | 12211110 | 289-352 | |||
20101223 | 80.1 | 23 | 0 | 0.5 | 0 | 0-2 | 00000000 | 00011101 | 273-363 | |||
20101222 | 77.7 | 12 | 0 | 0.0 | 0 | 0-0 | 00000000 | 00001100 | 287-381 | |||
20101221 | 77.9 | 12 | 0 | 1.3 | 1 | 0-3 | 01001000 | 11101100 | 347-457 | |||
20101220 | 77.9 | 12 | 0 | 8.5 | 8 | 3-18 | 13222223 | 13222223 | 346-479 | |||
20101219 | 80.9 | 11 | 0 | 1.4 | 1 | 0-6 | 10000002 | 11000112 | 345-415 | |||
20101218 | 80.5 | 0 | 0 | 2.3 | 2 | 0-5 | 11001001 | 11101211 | 353-446 | |||
20101217 | 81.6 | 11 | 11 | 3.1 | 3 | 0-7 | 21001111 | 31001221 | 383-524 | |||
20101216 | 84.1 | 11 | 23 | 4.6 | 5 | 0-9 | 21210111 | 21220221 | 433-567 | |||
20101215 | 86.9 | 22 | 11 | 8.9 | 9 | 3-27 | 34111111 | 44222211 | 544-655 | 1 | ||
20101214 | 90.3 | 34 | 33 | 11.1 | 11 | 5-18 | 12233323 | 13233323 | 491-757 | 1 | ||
20101213 | 87.7 | 49 | 46 | 5.4 | 5 | 2-9 | 22200022 | 32211212 | 385-611 | |||
20101212 | 89.4 | 52 | 23 | 3.8 | 4 | 0-15 | 00001312 | 00001422 | 293-445 | |||
20101211 | 86.9 | 23 | 25 | 0.9 | 1 | 0-3 | 00000001 | 01001001 | 284-354 | |||
20101210 | 88.4 | 40 | 33 | 0.3 | 0 | 0-2 | 00000000 | 00000110 | 321-349 | |||
20101209 | 86.8 | 54 | 22 | 1.8 | 2 | 0-3 | 11000001 | 11200110 | 341-404 | |||
20101208 | 87.2 | 48 | 22 | 2.8 | 3 | 0-7 | 11001021 | 12111222 | 337-445 | |||
20101207 | 87.1 | 31 | 34 | 3.9 | 4 | 2-7 | 10102111 | 01112211 | 342-385 | |||
20101206 | 88.5 | 28 | 35 | 2.4 | 2 | 0-4 | 00011111 | 01121121 | 269-351 | |||
20101205 | 87.9 | 42 | 47 | 0.8 | 1 | 0-4 | 00000001 | 00011101 | 270-274 | |||
20101204 | 87.4 | 52 | 48 | 0.6 | 1 | 0-3 | 00100000 | 00101010 | 270-314 | |||
20101203 | 86.8 | 47 | 27 | 1.1 | 1 | 0-5 | 01000000 | 02000000 | 270-337 | |||
20101202 | 86.5 | 38 | 32 | 2.6 | 3 | 0-6 | 21001000 | 11000110 | 339-360 | |||
20101201 | 86.5 | 44 | 25 | 1.8 | 2 | 0-4 | 10000011 | 10100210 | 338-358 | 1 |
This page is normally updated once a day by Jan Alvestad. All values are preliminary.