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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 active sunspot regions were on the visible disk without any M-class or above flares produced. The solar wind speed maintaind at about 430 km/s, and the geomagnetic field was at quiet levels.
	Published:	2026-06-16 00:30 UTC
	Forecaster:	026/016

Within the next three days, solar activity is expected to be mainly low with a little chance for M-class flares. The geomagnetic field is expected to be mainly quiet to unsettled, with isolated active levels on 16 Jun.
	Published:	2026-06-16 00:30 UTC
	Forecaster:	026/016

During the last week, solar activity was moderate on 6 Jun, and low on the other days. Eleven sunspot active regions (AR4455-AR4459, AR4461-AR4466) were on the visible disk with one M1.0 flare produced. No solar proton event occurred. The F10.7 index ranged from 124 sfu to 141 sfu. Due to the effect of CMEs from 3 Jun, the solar wind speed reached a peak value of about 730km/s, and the geomagnetic field was at moderate storm level for 3 hours, minor storm levels for 9 hours and active levels for 9 hours on 5-6 Jun. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed reached a peak value of about 510km/s, and the geomagnetic field was at minor storm level for 3 hours and active level for 3 hours on 11 Jun. It was quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm level on 7 Jun.
	Published:	2026-06-12 06:30 UTC
	Forecaster:	025/039

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 storm and active levels on 12-14 Jun due to the effect of the recurrent coronal hole high speed stream and CME.
	Published:	2026-06-12 06:30 UTC
	Forecaster:	025/039

ALERTS


	No space environment alerts have been issued today.


	19:00 UTC 11 Jun 2026	00:15 UTC 08 Jun 2026	14:28 UTC 06 Jun 2026	22:00 UTC 05 Jun 2026	19:00 UTC 05 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:C1.9
	Peak Time:2026 Jun 15 18:51 UTC

	Updated:2026 Jun 16 03:24 UTC
	>>more data<<


	Current 5-min:2.252e-1 /cm².sr.s
	24-hr Max:2.900e-1 /cm².sr.s

	Updated:2026 Jun 16 03:15 UTC
	>>more data<<


	Speed:455.5 km/sec
	Density:3.6 protons/cm³

	Updated:2026 Jun 16 03:32 UTC
	>>more data<<


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

	Updated:2026 Jun 16 03:00 UTC
	>>more data<<


	Current 5-min:6.906e+2 /cm².sr.s
	Integral Flux:6.643e+7 /cm².sr.day

	Updated:2026 Jun 16 03:15 UTC
	>>more data<<


	10.7cm Flux:117 sfu

	Update:2026 Jun 15 UTC
	>>more data<<


	SSN:78

	Update:2026 Jun 15 UTC
	>>more data<<