Space Environment Prediction Center





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	Kp Model
	GEO relativistic electron flux
	Chinese Assimilation TEC Model

	Cosmic Ray
	Station K Indices
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	Coronal Hole Index
	Solar Active Regions
	F10.7 Index
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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, with no C-class and above flares produced. The solar wind speed slowly decreased to about 390 km/s. The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels.
	Published:	2018-04-24 00:13 UTC
	Forecaster:	029/010

Within the next three days, solar activity is expected to be very low to low. The geomagnetic field is expected to be quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit is expected to maintain at minor storm levels.
	Published:	2018-04-24 00:13 UTC
	Forecaster:	029/010

During last week, solar activity was very low. There were two active regions 2704 and 2706 on the visible disk, and no C-class and above flare produced. The F10.7 index maintained at about 70 sfu. Due to the continuous effect of the recurrent coronal hole high speed stream, the geomagnetic field was at active levels for 3 hours. It was at quiet levels on the rest time. The solar wind speed decreased from 490 km/s to 280km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 13-18 Apr.
	Published:	2018-04-20 01:53 UTC
	Forecaster:	035/012

Within the next week, solar activity is expected to be very low. Due to the effect of the recurrent coronal high speed stream, the geomagnetic field is expected to reach isolated minor storm levels on 20-21 Apr. It is expected to be quiet to unsettled on other periods. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on 22-26 Apr.
	Published:	2018-04-20 01:53 UTC
	Forecaster:	035/012

ALERTS


	Space environment alerts have been issued today.


	01:15 UTC 24 Apr 2018	00:15 UTC 23 Apr 2018	01:15 UTC 22 Apr 2018	19:00 UTC 20 Apr 2018	10:00 UTC 20 Apr 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:B1.0
	Peak Time:2018 Apr 23 18:43 UTC

	Updated:2018 Apr 24 17:59 UTC
	>>more data<<


	Current 5-min:1.210e-1 /cm².sr.s
	24-hr Max:4.710e-1 /cm².sr.s

	Updated:2018 Apr 24 17:50 UTC
	>>more data<<


	Speed:366.3 km/sec
	Density:10.1 protons/cm³

	Updated:2018 Apr 24 17:54 UTC
	>>more data<<


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

	Updated:2018 Apr 24 15:00 UTC
	>>more data<<


	Current 5-min:8.290e+3 /cm².sr.s
	Integral Flux:7.320e+8 /cm².sr.day

	Updated:2018 Apr 24 17:50 UTC
	>>more data<<


	10.7cm Flux:74 sfu

	Update:2018 Apr 23 UTC
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	SSN:22

	Update:2018 Apr 23 UTC
	>>more data<<