🔥 Solar wind
speed: 507.6 km/sec
density: 8.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1340 UT

X-ray Solar Flares
6-hr max: B2 0744 UT Jul28
24-hr: B9 2226 UT Jul27
explanation | more data
Updated: Today at: 1345 UT

THE SOLAR WIND HAS ARRIVED: Earth is entering a stream of solar wind flowing ~400 km/s from a sinuous hole in the sun's atmosphere. First contact during the early hours of July 28th opened a crack in Earth's magnetic field, sparking an hours-long episode of minor (Kp=4) geomagnetic unrest. So far, no auroras have been reported.

🔥Solar wind
speed: 541.7 km/sec
density: 7.1 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0600 UT

X-ray Solar Flares
6-hr max: A8 0147 UT Jul29
24-hr: B6 0738 UT Jul28
explanation | more data
Updated: Today at: 0605 UT

Solar wind
speed: 444.0 km/sec
density: 3.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0620 UT

X-ray Solar Flares
6-hr max: A7 0039 UT Jul30
24-hr: B1 1934 UT Jul29
explanation | more data
Updated: Today at: 0625 UT

Solar wind
speed: 442.7 km/sec
density: 9.4 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0854 UT

X-ray Solar Flares
6-hr max: A5 0658 UT Jul31
24-hr: A5 1913 UT Jul30
explanation | more data
Updated: Today at: 0900 UT

Solar wind
speed: 387.3 km/sec
density: 4.2 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1541 UT

X-ray Solar Flares
6-hr max: A5 0946 UT Aug01
24-hr: B2 1748 UT Jul31
explanation | more data
Updated: Today at: 1545 UT

Solar wind
speed: 360.1 km/sec
density: 6.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0315 UT

X-ray Solar Flares
6-hr max: A8 0145 UT Aug03
24-hr: B1 1835 UT Aug02
explanation | more data
Updated: Today at: 0320 UT

Solar wind
speed: 307.0 km/sec
density: 6.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 2346 UT

X-ray Solar Flares
6-hr max: B5 0329 UT Aug04
24-hr: B5 0329 UT Aug04
explanation | more data
Updated: Today at: 0540 UT

DENSE SOLAR WIND SPARKS GEOMAGNETIC STORM: A dense wave of solar wind gently crashed against Earth's magnetic field on Aug. 2nd, sparking a G1-class geomagnetic storm.

It may have been a ripple from a passing CME--one of several "near miss CMEs" that left the sun in late July. Twilight auroras mixed with noctilucent clouds were seen in Norway.

Solar wind
speed: 307.1 km/sec
density: 5.7 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0335 UT

X-ray Solar Flares
6-hr max: A6 2140 UT Aug04
24-hr: B2 0339 UT Aug04
explanation | more data
Updated: Today at: 0340 UT

Solar wind
speed: 319.7 km/sec
density: 19.1 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0405 UT

X-ray Solar Flares
6-hr max: B1 2234 UT Aug05
24-hr: B1 2234 UT Aug05
explanation | more data
Updated: Today at: 0410 UT

Solar wind
speed: 354.4 km/sec
density: 5.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0544 UT

X-ray Solar Flares
6-hr max: B1 2349 UT Aug06
24-hr: B2 1921 UT Aug06
explanation | more data
Updated: Today at: 0550 UT

Solar wind
speed: 411.0 km/sec
density: 6.0 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0524 UT

X-ray Solar Flares
6-hr max: A8 0307 UT Aug08
24-hr: B5 1701 UT Aug07
explanation | more data
Updated: Today at: 0530 UT

PERSEID METEOR ALERT: Earth is enteriing a stream of debris from Comet 109/P Swift-Tuttle, source of the annual Perseid meteor shower. Forecasters expect the shower to peak on the night of Aug. 11-12, with Aug. 12-13 a possible close second. On both dates, meteor rates could exeed 100/hr during the dark hours before sunrise.

Solar wind
speed: 373.4 km/sec
density: 12.4 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0325 UT

X-ray Solar Flares
6-hr max: A6 0230 UT Aug10
24-hr: B3 1820 UT Aug09
explanation | more data
Updated: Today at: 0330 UT

⬆️Solar wind
speed: 443.4 km/sec
density: 4.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1235 UT

X-ray Solar Flares
6-hr max: A5 0725 UT Aug10
24-hr: B3 1820 UT Aug09
explanation | more data
Updated: Today at: 1240 UT

🌞Solar wind
speed: 434.2 km/sec
density: 5.6 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0455 UT

X-ray Solar Flares
6-hr max: A4 0441 UT Aug11
24-hr: A5 0725 UT Aug10
explanation | more data
Updated: Today at: 0500 UT

Solar wind
speed: 412.0 km/sec
density: 3.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1420 UT

X-ray Solar Flares
6-hr max: A5 1412 UT Aug12
24-hr: B1 0440 UT Aug12
explanation | more data
Updated: Today at: 1425 UT

Solar wind
speed: 361.9 km/sec
density: 17.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0605 UT

X-ray Solar Flares
6-hr max: A6 0017 UT Aug13
24-hr: A7 1813 UT Aug12
explanation | more data
Updated: Today at: 0610 UT

Solar wind
speed: 348.4 km/sec
density: 6.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0925 UT

X-ray Solar Flares
6-hr max: A5 0623 UT Aug14
24-hr: C1 2108 UT Aug13
explanation | more data
Updated: Today at: 0930 UT

Solar wind
speed: 408.3 km/sec
density: 3.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0700 UT

X-ray Solar Flares
6-hr max: A5 0143 UT Aug15
24-hr: A7 1606 UT Aug14
explanation | more data
Updated: Today at: 0705 UT