Space Environment Prediction Center





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	Daily Forecast
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	27-day F10.7 Forecast
	27-day Ap Forecast
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	Solar X-ray Flare
	Solar Proton Event
	RelativisticElectronEnhancement
	GeoMagnetic Storm

	AE Model
	Dst Model
	Sudden Ionosphere Disturbance
	Magnetopause & Bow Shock
	Kp Model
	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 low. There were two active regions (AR2735 and AR2736) on the visible disk. A C4-class flare associated with a partial CME was produced from AR2736. The solar wind speed decreased to about 370 km/s. The geomagnetic field was quiet.
	Published:	2019-03-21 00:00 UTC
	Forecaster:	010/035

Within the next three days, solar activity is expected to be low. The geomagnetic field is expected to be quiet to unsettled on 21-22 Mar and reach minor storm levels on 23 Mar due to the arrival of CME produced on 20 Mar.
	Published:	2019-03-21 00:00 UTC
	Forecaster:	010/035

During last week, solar activity was very low to low. There was one active region on the visible disk, with one C-class flare produced. The F10.7 index ranged from 70 sfu to 72 sfu. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 9-11 Mar.
	Published:	2019-03-15 02:39 UTC
	Forecaster:	012/029

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 for 15 Mar and 20 Mar. It will be mainly quiet to unsettled for the rest of time.
	Published:	2019-03-15 02:39 UTC
	Forecaster:	012/029

ALERTS


	No space environment alerts have been issued today.


	01:00 UTC 17 Mar 2019	00:15 UTC 12 Mar 2019	01:15 UTC 11 Mar 2019	01:15 UTC 10 Mar 2019	01:15 UTC 08 Mar 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:C5.6
	Peak Time:2019 Mar 21 03:12 UTC

	Updated:2019 Mar 21 12:26 UTC
	>>more data<<


	Current 5-min:1.440e-1 /cm².sr.s
	24-hr Max:4.900e-1 /cm².sr.s

	Updated:2019 Mar 21 12:20 UTC
	>>more data<<


	Speed:339.8 km/sec
	Density:2.9 protons/cm³

	Updated:2019 Mar 21 12:29 UTC
	>>more data<<


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

	Updated:2019 Mar 21 12:00 UTC
	>>more data<<


	Current 5-min:3.030e+2 /cm².sr.s
	Integral Flux:3.155e+7 /cm².sr.day

	Updated:2019 Mar 21 12:20 UTC
	>>more data<<


	10.7cm Flux:77 sfu

	Update:2019 Mar 20 UTC
	>>more data<<


	SSN:28

	Update:2019 Mar 20 UTC
	>>more data<<