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OVERVIEW & FORECAST

Daily Review
Day 1 To 3
Weekly Review
Weekly Forecast

During the past 24 hours, solar activity was low. Five sunspot active regions were on the visible disk without any M-class or above flares produced. The solar wind speed maintained at about 330 km/s, and the geomagnetic field was quiet.
	Published:	2026-06-23 00:30 UTC
	Forecaster:	022/010

Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be at quiet to unsettled levels on 23 Jun, and active to minor storm levels for isolated periods on 24-25 Jun due to the effects of a recurrent coronal hole high speed stream.
	Published:	2026-06-23 00:30 UTC
	Forecaster:	022/010

During the last week, solar activity was low. Nine sunspot active regions (AR4462-AR4466, AR4468-AR4471) were on the visible disk without M-Class flare produced. No solar proton event occurred. The F10.7 index ranged from 111 sfu to 128 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed reached a peak value of about 570km/s, and the geomagnetic field was at active level for 6 hours on 12 Jun. Due to the effect of CME from 11 Jun, the solar wind speed reached a peak value of about 630km/s, and the geomagnetic field was at active levels for 3 hours on 13 Jun. It was quiet to unsettled for the rest of the time.
	Published:	2026-06-19 06:30 UTC
	Forecaster:	040/012

Within the next week, solar activity is expected to be low to moderate with a chance for M-class flares. The geomagnetic field is expected to mainly quiet to unsettld and reach isolated active levels on 24-25 Jun due to the effect of the recurrent coronal hole high speed stream.
	Published:	2026-06-19 06:30 UTC
	Forecaster:	040/012

ALERTS


	No space environment alerts have been issued today.


	02:58 UTC 21 Jun 2026	14:05 UTC 20 Jun 2026	02:04 UTC 20 Jun 2026	19:00 UTC 11 Jun 2026	01:15 UTC 08 Jun 2026

LATEST DATA



		The magnetic map of the activity area is generated based on the full day longitudinal magnetic field data of the Huairou Solar Observatory in Beijing.				This full-disk Hα image of sun is observed with the 20cm Full-Disc Hα Telescope located at Huairou Solar Observatory Station of Beijing in China.



		Observatories of cosmic ray in SEPC include Beijing station monitoring Neutron intensity variations and Guangzhou station monitoring the intensity variations of East, West, South, North and Vertical components of muon.				This model is an improved geomagnetic K-index current reporting model based on the evaluation of Takahashi, a commonly used international Kp index current reporting model, and its application to Chinese geomagnetic stations.

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	24-hr Max:C1.4
	Peak Time:2026 Jun 22 04:56 UTC

	Updated:2026 Jun 23 02:43 UTC
	>>more data<<


	Current 5-min:2.081e-1 /cm².sr.s
	24-hr Max:2.640e-1 /cm².sr.s

	Updated:2026 Jun 23 02:35 UTC
	>>more data<<


	Speed:325.6 km/sec
	Density:3.4 protons/cm³

	Updated:2026 Jun 23 02:43 UTC
	>>more data<<


	Current:Kp=2
	24-hr Max:Kp=2

	Updated:2026 Jun 23 00:00 UTC
	>>more data<<


	Current 5-min:1.101e+2 /cm².sr.s
	Integral Flux:2.614e+7 /cm².sr.day

	Updated:2026 Jun 23 02:35 UTC
	>>more data<<


	10.7cm Flux:128 sfu

	Update:2026 Jun 21 UTC
	>>more data<<


	SSN:81

	Update:2026 Jun 22 UTC
	>>more data<<