Space Environment Prediction Center





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	Chinese Assimilation TEC Model

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	Station K Indices
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	Coronal Hole 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 without C-class and above flare produced. There was no active region on the visible disk. The solar wind speed maintained at about 310 km/s. The geomagnetic field was at quiet levels.
	Published:	2020-09-22 00:24 UTC
	Forecaster:	035/021

Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled on 22-23 Sep. It is expected to reach isolated active levels on 24 Sep due to a recurrent coronal hole high speed stream.
	Published:	2020-09-22 00:24 UTC
	Forecaster:	035/021

During last week, solar activity was very low without C-class and above flare produced. There was no sunspot active region on the visible disk. The solar wind speed reached a peak of about 430 km/s. The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit maitained at minor storm levels on 11 Sep.
	Published:	2020-09-18 04:44 UTC
	Forecaster:	010/025

Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet and to reach isolated active levels on 24 Sep due to the recurrent coronal hole high speed stream.
	Published:	2020-09-18 04:44 UTC
	Forecaster:	010/025

ALERTS


	No space environment alerts have been issued today.


	01:15 UTC 12 Sep 2020	00:15 UTC 11 Sep 2020	01:15 UTC 10 Sep 2020	01:15 UTC 09 Sep 2020	01:15 UTC 08 Sep 2020

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:B4.3
	Peak Time:2020 Sep 21 12:42 UTC

	Updated:2020 Sep 22 07:21 UTC
	>>more data<<


	Current 5-min:5.297e-1 /cm².sr.s
	24-hr Max:7.677e-1 /cm².sr.s

	Updated:2020 Sep 22 07:15 UTC
	>>more data<<


	Speed:329.2 km/sec
	Density:6.3 protons/cm³

	Updated:2020 Sep 22 07:26 UTC
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	Current:Kp=3
	24-hr Max:Kp=3

	Updated:2020 Sep 22 06:00 UTC
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	Current 5-min:4.000e+0 /cm².sr.s
	Integral Flux:1.860e+6 /cm².sr.day

	Updated:2020 Sep 22 07:15 UTC
	>>more data<<


	10.7cm Flux:71 sfu

	Update:2020 Sep 21 UTC
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	SSN:0

	Update:2020 Sep 21 UTC
	>>more data<<