Archive





You are here: Home>Archive

	Daily Forecast
	Weekly Forecast
	27-day F10.7 Forecast
	27-day Ap Forecast
	Solar Cycle Forecast

	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

ARCHIVE

DAILY REPORTS

startTime:

endTime:

During the past 24 hours, solar activity was moderate. 11 active sunspot regions were on the visble disk with 3 M-class flares produced. Due to the continuous effect of the recurrent coronal hole high speed stream, the solar wind speed ranged between 520 km/s and 580 km/s. The geomagnetic field reached active levels for 15 hours and unsettled levels for 6 hours.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to reach active and minor storm levels due to the continuous effect of the recurrent coronal hole high speed stream. The greater than 2 MeV electron flux at geosynchronous orbit will reach minor storm levels.
	Published:	2025-08-10 23:57 UTC
	Forecaster:	026

During the past 24 hours, solar activity was moderate. Eleven active sunspot regions were on the visble disk with three M-class flares produced. Due to the continuous effect of the recurrent coronal hole high speed stream, the solar wind speed maintained at about 520 km/s. The geomagnetic field reached active levels for 6 hours and was quite to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be mainly quite to unsettled with isolated active levels due to the continuous effect of the recurrent coronal hole high speed stream. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels.
	Published:	2025-08-12 00:07 UTC
	Forecaster:	039

During the past 24 hours, solar activity was moderate. Nine active sunspot regions were on the visble disk with two M-class flares produced. Due to the continuous effect of the recurrent coronal hole high speed stream, the solar wind speed increased to about 600 km/s. The geomagnetic field reached active levels for 3 hours and was quite to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be mainly quite to unsettled with isolated active levels due to the continuous effect of the recurrent coronal hole high speed stream. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels.
	Published:	2025-08-13 00:05 UTC
	Forecaster:	039

During the past 24 hours, solar activity was low. Ten active sunspot regions were on the visble disk with no M-class flares produced. The solar wind speed decreased to about 470 km/s. Due to the continuous effect of the recurrent coronal hole high speed stream, the geomagnetic field reached active levels for 3 hours and was quite to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be mainly quite to unsettled with isolated active levels due to the continuous effect of the recurrent coronal hole high speed stream. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels.
	Published:	2025-08-13 23:30 UTC
	Forecaster:	025

During the past 24 hours, solar activity was low. Thirteen active sunspot regions were on the visble disk without M-class flares produced. The solar wind speed decreased to about 430 km/s. The geomagnetic field was at quite to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be mainly quite to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels on 15 Aug.
	Published:	2025-08-14 22:52 UTC
	Forecaster:	010

During the past 24 hours, solar activity was low. Thirteen active sunspot regions were on the visble disk without M-class flares produced. The solar wind speed decreased to about 370 km/s. The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be at quiet to unsettled levels on 16 and 17 Aug, and unsettled to minor storm levels due to effects of a coronal hole high speed wind stream. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels on 16 Aug.
	Published:	2025-08-16 00:02 UTC
	Forecaster:	022

During the past 24 hours, solar activity was low. Nine active sunspot regions were on the visble disk without M-class flares produced. The solar wind speed slowly decreased to about 350 km/s. The geomagnetic field was at quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels.
Within the next three days, solar activity is expected to be low. The geomagnetic field is expected to be at quiet to unsettled levels on 17 Aug, and active to minor storm levels due to effects of a coronal hole high speed wind stream. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels on 17-18 Aug.
	Published:	2025-08-16 23:57 UTC
	Forecaster:	022

WEEKLY REPORTS

startTime:

endTime:

Week-6
Week-5
Week-4
Week-3
Week-2
Week-1
Week

During the last week, solar activity was low. There were 16 active sunspot regions on the visible disk(AR4117, AR4118, AR4120-AR4133) with no M-class or above flares produced. The F10.7 rose from 118 sfu to around 130 sfu. No solar proton events occurred. Due to the effect of the recurrent coronal hole high speed stream, the solar wind speed rose to about 780 km/s on 27 Jun, and the geomagnetic field reached minor storm level for 3 hours and active levels for 6 hours. Due to the effects of the CME from 28 Jun and the recurrent coronal hole high speed stream, the geomagnetic field reached active levels for 6 hours on 3 Jul. From 28 Jun to 2 Jul, the flux of electrons greater than 2 MeV on geosynchronous orbit reached minor storm levels.
Within the next week, solar activity is expected to be low to moderate. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field will reach active to minor storm levels on 4-6 Jul. Due to the effect of another recurrent coronal hole high speed stream, the geomagnetic field will reach active to minor storm levels on 8-10 Jul.
	Published:	2025-07-04 05:20 UTC
	Forecaster:	039/026

During the last week, solar activity reached moderate levels on 8-9 Jul and low levels for the rest of the time. 13 active sunspot regions (AR4122-AR4123, AR4125, AR4127-AR4132, AR4134-AR4137 ) were on the visible disk with two M-class flares produced. The F10.7 index ranged from 115 sfu to 129 sfu. No solar proton event occurred. Due to the effect of the recurrent coronal hole high speed stream, the solar wind speed reached to the maximum of 660 km/s on 4-8 Jul, and the geomagnetic field reached minor storm levels for 9 hours, active levels for 21 hours and was quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 10 Jul.
Within the next week, solar activity is expected to be low to moderate. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active or minor storm levels on 11-14 Jul and will be mainly quiet to unsettled for the rest of the time.
	Published:	2025-07-11 01:27 UTC
	Forecaster:	025/041

During the last week, solar activity reached moderate level on 12 Jul and low levels for the rest of the time. Fourteen active sunspot regions ( AR4135-AR4148 ) were on the visible disk with 3 M-class flares produced. The F10.7 index ranged from 128 sfu to 156 sfu. No solar proton event occurred. Due to the effect of the recurrent coronal hole high speed stream, the solar wind speed reached the maximum of 520 km/s and the geomagnetic field reached active levels for 9 hours on 11 Jul. Due to the effect of another recurrent coronal hole high speed stream, the solar wind speed reached the maximum of 700 km/s and the geomagnetic field reached minor storm levels for 15 hours, active levels for 39 hours on 13-17 Jul. It was quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 16-17 Jul.
Within the next week, solar activity is expected to be low to moderate. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 18-19 Jul. Due to the effect of another recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active or minor storm levels on 22-24 Jul. It will be mainly quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 18-20 Jul.
	Published:	2025-07-18 01:30 UTC
	Forecaster:	026/016

During the last week, solar activity was low. Twenty-two sunspot regions (AR4135-AR4136, AR4138-AR4140, AR4142-AR4158) were on the visible disk without M-class and above flares produced. The F10.7 index ranged between 143 sfu to 156 sfu. No solar proton event occurred. Due to the continuous effect of the recurrent coronal hole high speed stream, the solar wind speed reached the maximum of 680 km/s and the geomagnetic field reached active levels for 3 hours on 18-19 Jul. Due to the effect of another recurrent coronal hole high speed stream, the solar wind speed peaked about 700 km/s and the geomagnetic field reached minor storm levels for 9 hours, active levels for 24 hours on 22-23 Jul. It was quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 18-22 Jul.
Within the next week, solar activity is expected to be low to moderate. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 30-31 Jul and will be mainly quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 25-29 Jul.
	Published:	2025-07-25 06:06 UTC
	Forecaster:	039

During the last week, solar activity was low. Seventeen sunspot regions (AR4149-AR4150, AR4153-AR4167) were on the visible disk without M-class and above flares produced. The F10.7 index ranged between 143 sfu to 152 sfu. No solar proton event occurred. Due to the effect of the CME on 23 Jul, the geomagnetic field reached active levels for 3 hours on 26 Jul. It was quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 25-26 Jul.
Within the next week, solar activity is expected to be mainly low. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 4-5 Aug and will be mainly quiet to unsettled for the rest of the time.
	Published:	2025-08-01 00:49 UTC
	Forecaster:	041/026

During the last week, solar activity reached moderate levels on 3-7 Aug and low levels for the rest of the time. Fifteen active sunspot regions ( AR4153-AR4155, AR4157, AR4161, AR4165-AR4174 ) were on the visible disk with 8 M-class flares produced. The F10.7 index ranged from 142 sfu to 158 sfu. No solar proton event occurred. The solar wind speed reached the maximum of 570 km/s and the geomagnetic field reached active levels for 3 hours on 3 Aug. It was quiet to unsettled for the rest of the time.
Within the next week, solar activity is expected to be low to moderate with chances for M-class flares. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 18-19 Jul. Due to the effect of another recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active or minor storm levels on 8-12 Aug. It will be mainly quiet to unsettled for the rest of the time.
	Published:	2025-08-08 02:24 UTC
	Forecaster:	016

During the last week, solar activity was at moderate levels on 8-12 Aug and low levels on 13-14 Aug. Twenty-two active sunspot regions ( AR4161, AR4165-AR4185 ) were on the visible disk with 12 M-class flares produced. The F10.7 index ranged from 130 sfu to 153 sfu. No solar proton event occurred. Due to the effects of the recurrent coronal hole high speed stream and CME on 5 Aug, the solar wind speed reached the peak of 700 km/s and the geomagnetic field reached moderate levels for 3 hours and minor storm levels for 21 hours on 8-9 Aug. It reached active levels for a total of 36 hours on 8-14 Aug. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels on 11-14 Aug.
Within the next week, solar activity is expected to be low to moderate with chances for M-class flares. Due to the effect of the recurrent coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 18-19 Jul. Due to the effect of another recurrent coronal hole high speed stream, the geomagnetic field is expected to reach minor storm levels on 18-20 Aug. It will be mainly quiet to unsettled for the rest of the time. The greater than 2 MeV electron flux at geosynchronous orbit will maintained at minor storm levels on 15 Aug.
	Published:	2025-08-15 02:06 UTC
	Forecaster:	010

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.