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	Daily Forecast
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	RelativisticElectronEnhancement
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	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

ARCHIVE

DAILY REPORTS

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During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no sunspot region on the visible disk. due to the effect of co-rotating interaction region, the solar wind speed increased to about 520 km/s. The geomagnetic field reached minor storm level for 3 hours and active levels for 6 hours.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled on 8-9 Apr and reach isolated active levels on 10 Apr.
	Published:	2021-04-08 00:09 UTC
	Forecaster:	029/026

During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no sunspot region on the visible disk. The solar wind speed decreased to about 400 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled on 9 Apr, reach isolated active levels on 10 Apr and mainly quiet on 11 Apr.
	Published:	2021-04-09 00:10 UTC
	Forecaster:	026/027

During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no sunspot region on the visible disk. The solar wind speed decreased to about 370 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to reach isolated active levels on 10 Apr and be mainly quiet on 11-12 Apr.
	Published:	2021-04-10 00:15 UTC
	Forecaster:	027/010

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no sunspot region on the visible disk. The solar wind speed decreased to about 330 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet.
	Published:	2021-04-11 00:03 UTC
	Forecaster:	010/039

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no sunspot region on the visible disk. The solar wind speed maintained at about 350 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet.
	Published:	2021-04-12 00:09 UTC
	Forecaster:	039/012

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was 1 sunspot region on the visible disk. The solar wind speed maintained at about 370 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be mainly quiet.
	Published:	2021-04-13 00:04 UTC
	Forecaster:	012/035

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was 1 sunspot region on the visible disk. The solar wind speed maintained at about 350 km/s. The geomagnetic field was at quiet levels.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled.
	Published:	2021-04-14 00:21 UTC
	Forecaster:	035/021

WEEKLY REPORTS

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During last week, solar activity was very low. There were four sunspot regions on the visible disk and no C class and above flare was produced. The F10.7 index increased from 73sfu to 81sfu. Due to the effect of the current coronal hole high speed stream, the solar wind speed increased to about 500 km/s on 19 Feb and the geomagnetic field reached active levels for 48 hours on 19-23 Feb. Due to the arrival of the coronal mass ejection, the geomagnetic field reached active levels for 15 hours on 24-25 Feb. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 21-24 Feb.
Within next week, solar activity is expected to be very low. Due to the effect of a coronal hole high speed stream, the geomagnetic field is expected to reach active and above levels on 1-2 Mar and be quiet to unsettled during other periods.
	Published:	2021-02-26 01:34 UTC
	Forecaster:	021/029

During last week, solar activity was very low to low. There were four sunspot regions on the visible disk. Three C-class flares were produced. The F10.7 index fluctuated between 71sfu to 81sfu. Due to the effect of the coronal mass ejection produced on 26 Feb, the solar wind speed increased to about 530 km/s on 26 Feb. The geomagnetic field reached mediun storm levels for three hours, minor storm levels for three hours and active levels for three hours,respectively. Due to the effect of the current coronal hole high speed stream, the solar wind speed increased to about 660 km/s on 3 Mar and the geomagnetic field reached minor storm levels for 12 hours, active levels for9 hours on 2-4 Mar. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 26, 28 Feb and 3,4 Mar.
Within next week, solar activity is expected to be mainly very low. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach minor storm levels on 5-6 Mar and be quiet to unsettled during other periods. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 5 Mar.
	Published:	2021-03-05 01:05 UTC
	Forecaster:	021

During last week, solar activity was very low to low. There were four sunspot regions on the visible disk (AR2806-AR2809). One C-class flare was produced. The F10.7 index fluctuated between 73 sfu to 84 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to about 580 km/s and the geomagnetic field reached active levels for 9 hours on 6-7 Mar. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 5 Mar.
Within next week, solar activity is expected to be mainly very low. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 12-13 Mar. It will be quiet to unsettled during other periods.
	Published:	2021-03-12 00:51 UTC
	Forecaster:	035/012

During last week, solar activity was very low. There were three sunspot regions on the visible disk (AR2808-AR2810), Without C-class and above flare produced. The F10.7 index fluctuated between 73 sfu to 79 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to about 600 km/s and the geomagnetic field reached minor storm levels for 3 hours and active levels for 18 hours on 13-14 Mar. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 15-17 Mar.
Within next week, solar activity is expected to be mainly very low. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to be acitve, and reach isolated minor storm levels on 19-21 Mar. It will be quiet to unsettled during other periods. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on 21-24 Mar.
	Published:	2021-03-19 00:56 UTC
	Forecaster:	039/012

During last week, solar activity was very low. There were three sunspot regions on the visible disk (AR2810-AR2812), Without C-class and above flare produced. The F10.7 index fluctuated between 74 sfu to 84 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed reached a peak of about 660 km/s and the geomagnetic field reached moderate storm levels for 3 hours, minor storm levels for 9 hours and active levels for 21 hours on 19-23 Mar. Due to the effect of CME on 20 Mar, the solar wind speed reached a peak of about 480 km/s and the geomagnetic field reached minor storm levels for 3 hours and active levels for 6 hours on 24-25 Mar. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 22-24 Mar.
Within next week, solar activity is expected to be mainly very low. Due to the effect of a recurrent coronal hole high speed stream, the geomagnetic field is expected to be acitve, and reach isolated minor storm levels on 27-31 Mar. It will be quiet to unsettled during other periods.
	Published:	2021-03-26 05:28 UTC
	Forecaster:	039

During last week, solar activity was very low. There were two sunspot regions on the visible disk (AR2811-AR2812), Without C-class and above flares produced. The F10.7 index fluctuated between 74 sfu to 80 sfu. Due to the effect of recurrent coronal hole high speed streams, the solar wind speed reached a peak of about 470 km/s and the geomagnetic field reached moderate storm levels for 3 hours on 26 and 27 Mar.
Within next week, solar activity is expected to be mainly very low. Due to the effect of recurrent coronal hole high speed streams, the geomagnetic field is expected to reach isolated active levels on 3-5, 8 Apr. It will be quiet to unsettled during other periods.
	Published:	2021-04-02 03:13 UTC
	Forecaster:	026/027

During last week, solar activity was very low. There was one sunspot region on the visible disk (AR2813), Without C-class and above flares produced. The F10.7 index fluctuated between 70 sfu to 76 sfu. Due to the effect of co-rotating interaction region, the solar wind speed reached a peak of about 520 km/s and the geomagnetic field reached minor storm levels for 3 hours and active levels for 6 hours on 7 Apr.
Within next week, solar activity is expected to be mainly very low. Due to the effect of recurrent coronal hole high speed streams, the geomagnetic field is expected to reach isolated active levels on 10 Apr. It will be quiet to unsettled during other periods.
	Published:	2021-04-09 02:57 UTC
	Forecaster:	027

SOLAR IMAGES

The active region magnetogram is created from the raw full-disk longitudinal magnetogram data, which is observed at Huairou Solar Observatory Station of Beijing in China.