Space Environment Prediction Center





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OVERVIEW & FORECAST

Daily Review
Day 1 To 3
Weekly Review
Weekly Forecast

During the past 24 hours, solar activity was very low. There was one active region on the visible disk, without C-class and above flares produced. The solar wind speed decreased to about 380 km/s. The geomagnetic field was quiet.
	Published:	2018-10-18 00:04 UTC
	Forecaster:	021

Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet on 18 Oct. Due to the effect of the recurent coronal hole high speed stream, the geomagnetic field is expected to reach isolated minor storm levels on 19 Oct. It will be quiet to unsettled on 20 Oct.
	Published:	2018-10-18 00:04 UTC
	Forecaster:	021

During last week, solar activity was very low. There were no active regions on the visible disk, with no C class and above flares produced. The F10.7 index ranged from 69 sfu to 71 sfu. Due to the effects of the coronal hole high speed stream, the solar wind speed reached a peak of about 630 km/s on 7-10 Oct, and the geomagnetic field was at minor storm levels for 12 hours and active levels for 24 hours. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 8, 10 Oct and reached moderate storm levels on 9, 11 Oct.
	Published:	2018-10-12 04:07 UTC
	Forecaster:	010

Within the next week, solar activity is expected to be very low. Due to recurrent coronal hole high speed streams, the geomagnetic field will be active on 14,18 Oct. It will be mainly quiet to unsettled for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit will reach moderate storm levels on 12 Oct and minor storm levels on 13-17 Oct.
	Published:	2018-10-12 04:07 UTC
	Forecaster:	010

ALERTS


	No space environment alerts have been issued today.


	01:15 UTC 14 Oct 2018	15:00 UTC 13 Oct 2018	01:15 UTC 13 Oct 2018	01:15 UTC 12 Oct 2018	01:15 UTC 11 Oct 2018

LATEST DATA



		The active region magnetogram is created from the raw full-disk longitudinal magnetogram data observed at Huairou Solar Observatory Station of Beijing in China.				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.

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		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.				The Ionosphere GPS observation network , monitoring the ionospheric scintillation and GPS-TEC with time resolutions of 1 minute and 30 seconds, is located at Fuzhou, Xiamen, Guangzhou, Nanning and Hainan.

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	24-hr Max:A1.4
	Peak Time:2018 Oct 18 06:29 UTC

	Updated:2018 Oct 18 21:16 UTC
	>>more data<<


	Current 5-min:1.450e-1 /cm².sr.s
	24-hr Max:4.090e-1 /cm².sr.s

	Updated:2018 Oct 18 21:10 UTC
	>>more data<<


	Speed:323.4 km/sec
	Density:3.9 protons/cm³

	Updated:2018 Oct 18 21:11 UTC
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	Current:Kp=0
	24-hr Max:Kp=1

	Updated:2018 Oct 18 18:00 UTC
	>>more data<<


	Current 5-min:1.270e+3 /cm².sr.s
	Integral Flux:6.952e+7 /cm².sr.day

	Updated:2018 Oct 18 21:10 UTC
	>>more data<<


	10.7cm Flux:70 sfu

	Update:2018 Oct 17 UTC
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	SSN:11

	Update:2018 Oct 17 UTC
	>>more data<<