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	Station K Indices
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	Coronal Hole Index
	Solar Active Regions
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ARCHIVE

DAILY REPORTS

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During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no active region on the visible disk. The solar wind speed maintained at about 450m/s. The geomagnetic field was quiet. 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 very low. The geomagnetic field is expected to be mainly quiet. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 15 Aug.
	Published:	2019-08-15 00:16 UTC
	Forecaster:	029/015

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no active region on the visible disk. The solar wind speed decreased to about 420m/s. The geomagnetic field was quiet. 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 very low. The geomagnetic field is expected to be mainly quiet. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 16-17 Aug.
	Published:	2019-08-15 23:54 UTC
	Forecaster:	015

During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no active region on the visible disk. The solar wind speed decreased to about 350m/s. The geomagnetic field was quiet to unsettled. 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 very low. The geomagnetic field is expected to be quiet on 17-18 Aug, and unsettled with possibility for isolated active periods on 19 Aug due to the effect of a recurrent coronal hole high speed stream.
	Published:	2019-08-17 00:30 UTC
	Forecaster:	021

During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no active region on the visible disk. The solar wind speed maintained at about 350m/s. The geomagnetic field was quiet.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled with possibility for isolated active periods on 19 Aug due to the effect of a recurrent coronal hole high speed stream.
	Published:	2019-08-18 00:05 UTC
	Forecaster:	039

During the past 24 hours, solar activity was very low without C-class and above flares produced. There was no active region on the visible disk. The solar wind speed maintained at about 360m/s. The geomagnetic field was quiet to unsettled.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled with possibility for isolated active periods on 19-20 Aug due to the effect of a recurrent coronal hole high speed stream.
	Published:	2019-08-19 00:03 UTC
	Forecaster:	039

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no active 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:	2019-08-20 00:16 UTC
	Forecaster:	010/035

During the past 24 hours, solar activity was very low without C-class and above flare produced. There was no active region on the visible disk. The solar wind speed increased to about 410 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:	2019-08-21 00:08 UTC
	Forecaster:	035/012

WEEKLY REPORTS

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Week-4
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Week-2
Week-1
Week

During last week, solar activity was very low. There was no active region on the visible disk, without C class and above flare produced. The F10.7 index ranged from 67 sfu to 68 sfu. Solar wind speed maintained between 330 km/s and 390 km/s, The geomagnetic field was quiet to unsettled.
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 5 Jul and 9-10 Jul. It will be quiet to unsettled on rest of the other time.
	Published:	2019-07-05 03:14 UTC
	Forecaster:	012/029

During last week, solar activity was very low. There was one active region on the visible disk, without C class and above flare produced. The F10.7 index ranged from 67 sfu to 68 sfu. Due to the arrival of CME produced on 2 Jul, the solar wind speed increased to about 440km/s, the geomagnetic field reached active levels for 3 hours on 8 Jul. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to a peak of 695 km/s. The geomagnetic field reached minor storm levels for 6 hours and active levels for 6 hours on 9-10 Jul, with quiet to unsettled levels for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 10-11 Jul.
Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit will reach minor storm levels on 12-13 Jul.
	Published:	2019-07-12 01:43 UTC
	Forecaster:	035/012

During last week, solar activity was very low. There was no active region on the visible disk, without C class and above flare produced. The F10.7 index ranged from 66 sfu to 68 sfu. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 12-14 Jul.
Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled.
	Published:	2019-07-19 00:19 UTC
	Forecaster:	035/010

During last week, solar activity was very low. There was one active region (AR2745) on the visible disk, without C class and above flare produced. The F10.7 index ranged from 67 sfu to 68 sfu. Solar wind speed maintained between 340 km/s and 420 km/s, The geomagnetic field was quiet to unsettled.
Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be mainly at quiet to unsettled levels.
	Published:	2019-07-26 02:19 UTC
	Forecaster:	010

During last week, solar activity was very low. There was no active region on the visible disk, without C class and above flare produced. The F10.7 index ranged from 66 sfu to 68 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached a peak of about 600 km/s on 1 Aug. The geomagnetic field was quiet to unsettled.
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 minor storm levels on 5 Aug. It will be quiet to unsettled during other periods.
	Published:	2019-08-02 06:32 UTC
	Forecaster:	035

During last week, solar activity was very low. There were two active regions on the visible disk, AR2745 and AR2747, without C class and above flare produced. The F10.7 index ranged from 66 sfu to 69 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to a peak of 770 km/s on 5-6 Aug. The geomagnetic field reached minor storm levels for 12 hours and active levels for 6 hours on 5 Aug, with quiet to unsettled levels for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit reached moderate storm levels on 7 Aug and minor storm levels on 8 Aug.
Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be mainly at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit will reach minor storm levels on 9-10 Aug.
	Published:	2019-08-09 06:19 UTC
	Forecaster:	039

During last week, solar activity was very low. There was no active region on the visible disk, without C class and above flare produced. The F10.7 index ranged from 67 sfu to 68 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached a peak of about 670 km/s on 9-10 Aug. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm levels on 9-15 Aug.
Within the next week, solar activity is expected to be very low. The geomagnetic field is expected to be mainly at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit will reach minor storm levels on 16-17 Aug.
	Published:	2019-08-16 00:35 UTC
	Forecaster:	015

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.