Space Environment Prediction Center





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	GEO relativistic electron flux
	Chinese Assimilation TEC Model

	Cosmic Ray
	Station K Indices
	Ionosphere

	Coronal Hole Index
	Solar Active Regions
	F10.7 Index
	Ap Index

OVERVIEW & FORECAST

Daily Review
Day 1 To 3
Weekly Review
Weekly Forecast

During the past 24 hours, solar activity was very low. There was no active region on the visible disk and no C-class and above flares produced. The solar wind speed maintaind at about 330 km/s. The geomagnetic field was quiet.
	Published:	2019-05-25 23:57 UTC
	Forecaster:	012/029

Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 28 May.
	Published:	2019-05-25 23:57 UTC
	Forecaster:	012/029

During last week, solar activity was very low. There was one active region (AR2741) on the visible disk, with no C class and above flare produced. The F10.7 index decreased from 72 sfu to 67 sfu. The solar wind speed decreased from about 460 km/s to 350 km/s. The geomagnetic field was quiet to unsettled.
	Published:	2019-05-24 04:03 UTC
	Forecaster:	035/010

Within the next week, solar activity is expected to be very low. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 28-29 May. It will be quiet to unsettled for the rest of time.
	Published:	2019-05-24 04:03 UTC
	Forecaster:	035/010

ALERTS


	No space environment alerts have been issued today.


	07:00 UTC 14 May 2019	03:00 UTC 14 May 2019	01:15 UTC 14 May 2019	01:15 UTC 13 May 2019	01:00 UTC 11 May 2019

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:A7.4
	Peak Time:2019 May 26 11:08 UTC

	Updated:2019 May 26 16:10 UTC
	>>more data<<


	Current 5-min:2.570e-1 /cm².sr.s
	24-hr Max:5.250e-1 /cm².sr.s

	Updated:2019 May 26 16:05 UTC
	>>more data<<


	Speed:318.6 km/sec
	Density:4.9 protons/cm³

	Updated:2019 May 26 16:03 UTC
	>>more data<<


	Current:Kp=1
	24-hr Max:Kp=2

	Updated:2019 May 26 15:00 UTC
	>>more data<<


	Current 5-min:9.550e+1 /cm².sr.s
	Integral Flux:4.981e+6 /cm².sr.day

	Updated:2019 May 26 16:05 UTC
	>>more data<<


	10.7cm Flux:67 sfu

	Update:2019 May 25 UTC
	>>more data<<


	SSN:0

	Update:2019 May 25 UTC
	>>more data<<