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 low. There was only one active region on the visible disk. The solar wind speed increased to about 670km/s. The geomagnetic field was at moderate storm levels for 3 hour, minor storm levels for 9 hours and active levels for 9 hours.
	Published:	2016-09-27 23:25 UTC
	Forecaster:	033/012

Within the next three days, solar activity is expected to be low. The geomagnetic field is expected to reach storm levels on 28-30 Sep due to the effect of recurrent coronal hole high speed stream.
	Published:	2016-09-27 23:25 UTC
	Forecaster:	033/012

During last week, solar activity was very low on 16-20 Sep and low on 21-22 Sep. There were 4 active regions on the visible disk (AR2592-AR2595). Region 2593 and 2595 produced 7 C-class flares on 21-22 Sep. The F10.7 index fluctuated between 80 sfu and 86 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached the maxmium of 750 km/s on 20 Sep. The geomagnetic field reached minor storm levels for 3 hours and active levels for 12 hours on 20-21 Sep.
	Published:	2016-09-23 03:32 UTC
	Forecaster:	026/010

Within the next week, solar activity is expected to be at low levels. Due to the effect of two coronal hole high speed streams, the geomagnetic field is expected to reach isolated active levels on 26 Sep and reach storm levels on 28-29 Sep, and will be quiet to unsettled for other periods.
	Published:	2016-09-23 03:32 UTC
	Forecaster:	026/010

ALERTS


	Space environment alerts have been issued today.


	16:00 UTC 28 Sep 2016	09:00 UTC 28 Sep 2016	04:00 UTC 28 Sep 2016	01:00 UTC 28 Sep 2016	16:00 UTC 27 Sep 2016

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:B7.5
	Peak Time:2016 Sep 28 17:07 UTC

	Updated:2016 Sep 28 18:34 UTC
	>>more data<<


	Current 5-min:1.100e-1 /cm².sr.s
	24-hr Max:3.110e-1 /cm².sr.s

	Updated:2016 Sep 28 18:25 UTC
	>>more data<<


	Speed:738.1 km/sec
	Density:9.5 protons/cm³

	Updated:2016 Sep 28 18:44 UTC
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	Current:Kp=5
	24-hr Max:Kp=5

	Updated:2016 Sep 28 18:00 UTC
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	Current 5-min:1.560e+3 /cm².sr.s
	Integral Flux:3.273e+8 /cm².sr.day

	Updated:2016 Sep 28 18:25 UTC
	>>more data<<


	10.7cm Flux:86 sfu

	Update:2016 Sep 27 UTC
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	SSN:21

	Update:2016 Sep 27 UTC
	>>more data<<