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	Station K Indices
	Ionosphere

	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. There was no active region on the visible disk, without C-class and above flare produced. The solar wind speed decreased to about 400 km/s. The geomagnetic field was quiet.
Within the next three days, solar activity is expected to be very low. The geomagnetic field will be mainly quiet to unsettled with isolated active levels on 16 Aug due to the effect of the coronal hole high speed stream.
	Published:	2018-08-14 00:21 UTC
	Forecaster:	029/015

During the past 24 hours, solar activity was very low. There was no active region on the visible disk, without C-class and above flare produced. The solar wind speed decreased to about 320 km/s. The geomagnetic field was quiet.
Within the next three days, solar activity is expected to be very low. The geomagnetic field will be mainly quiet to unsettled with isolated active levels on 15-16 Aug due to the effect of the coronal hole high speed stream.
	Published:	2018-08-15 00:13 UTC
	Forecaster:	015/039

During the past 24 hours, solar activity was very low. There was 1 active region on the visible disk, without C-class and above flare produced. The solar wind speed increased to about 490 km/s, due to the effect of the recurrent coronal hole high speed stream. The geomagnetic field reached active levels for 6 hours and was quiet to unsettled for the rest of time.
Within the next three days, solar activity is expected to be very low. The geomagnetic field will be mainly quiet to unsettled with isolated active levels on 16 Aug due to the continuous effect of the recurrent coronal hole high speed stream.
	Published:	2018-08-16 00:14 UTC
	Forecaster:	039/021

During the past 24 hours, solar activity was very low. There was 1 active region on the visible disk, without C-class and above flare produced. Due to the effect of the recurrent coronal hole high speed stream, the solar wind speed miantained at about 470 km/s. The geomagnetic field reached active levels for 3 hours and was quiet to unsettled for the rest of time.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled.
	Published:	2018-08-17 00:16 UTC
	Forecaster:	021/035

During the past 24 hours, solar activity was very low. There was 1 active region on the visible disk, without C-class and above flare produced. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed reached a peak of about 570 km/s. The geomagnetic field reached active levels for 3 hours and was quiet to unsettled for the rest of time.
Within the next three days, solar activity is expected to be very low. The geomagnetic field is expected to be quiet to unsettled on 18-19 Aug. Due to the arrival of a recurrent coronal hole high speed stream, it is expected to reach minor storm levels on 20 Aug.
	Published:	2018-08-17 23:58 UTC
	Forecaster:	035/012

During the past 24 hours, solar activity was very low. There was 1 active region on the visible disk, without C-class and above flare produced. The solar wind speed decreased to about 450 km/s. The geomagnetic field reached active levels for 3 hours and was quiet to unsettled for the rest of 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 very low. The geomagnetic field is expected to be quiet to unsettled on 19 Aug. Due to the arrival of a recurrent coronal hole high speed stream, it is expected to reach minor storm levels on 20 Aug and isolated active levels on 21 Aug. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on 19 Jul and 21 Jul.
	Published:	2018-08-18 23:59 UTC
	Forecaster:	012/032

During the past 24 hours, solar activity was very low. There was 1 active region on the visible disk, without C-class and above flare produced. The solar wind speed slowly increased to about 500 km/s. The geomagnetic field was quiet to unsettled for the rest of 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 very low. Due to the arrival of a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach minor storm levels on 20 Aug and isolated active levels on 21 Aug. It will be quiet to unsettled on 21 Aug. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on and 21-22 Jul.
	Published:	2018-08-19 23:31 UTC
	Forecaster:	032/035

WEEKLY REPORTS

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During last week, solar activity was at very low levels. There was no active region on the visible disk, with no C class and above flare produced. A CME towards west was observed on 5 July. The F10.7 index fluctuated between 67 sfu and 69 sfu. Due to the effect of the coronal hole high speed stream, the solar wind speed reached a peak of 450 km/s on 5 Jul, and the geomagnetic field reached minor storm levels for 3 hours, active levels for 6 hours and be quiet to unsettled on other periods. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels from 28 Jun to 3 Jul.
Within the next week, solar activity is expected to be mainly very low. Due to the continuous effect of the coronal hole high speed stream, the geomagnetic field is expected to be at isolated active levels on 6 July. It will be quiet to unsettled for the rest of time.
	Published:	2018-07-06 03:55 UTC
	Forecaster:	039

During last week, solar activity was at very low to low levels. There was no active region on the visible disk, with only one C1.6 flare produced from eastward limb on 6 July. The F10.7 index ranged from 72 sfu to 73 sfu. Due to the continous effect of the coronal hole high speed stream, the solar wind speed reached a peak of 524 km/s on 7 Jul. The geomagnetic field was at quiet to unsettled levels.
Within the next week, solar activity is expected to be mainly very low. Due to the effect of the coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 15 Jul. It will be quiet to unsettled for the rest of time.
	Published:	2018-07-13 03:57 UTC
	Forecaster:	010/029

During last week, solar activity was at very low level. There was no active region on the visible disk, without C-class and above flares produced. The F10.7 index decreased from 73 sfu to 71 sfu.The solar wind speed fluctuated between 300 km/s and 500 km/s . The geomagnetic field was at quiet to unsettled levels.
Within the next week, solar activity is expected to be mainly very low. Due to the effect of the coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 20 Jul. Due to the effect of another coronal hole high speed stream,it is expected to reach minor storm level on 23-24 Jul. It will be quiet to unsettled for the rest of time.
	Published:	2018-07-20 01:13 UTC
	Forecaster:	026/029

During last week, solar activity was very low. There were no active regions on the visible disk, with no C class and above flares produced. The F10.7 index decreased from 71 sfu to 66 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached a peak of 600 km/s on 24 Jul, and the geomagnetic field reached active levels for 6 hours, with quiet to unsettled levels on other periods. 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 very low. Due to the effect of a coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 1-2 Aug. It will be quiet to unsettled for the rest of time.
	Published:	2018-07-27 00:35 UTC
	Forecaster:	026/035

During last week, solar activity was very low. There was one active region on the visible disk (AR2717), with no C class and above flares produced. The F10.7 index increased slightly from 68 sfu to 70 sfu. The solar wind speed varied between 270 km/s ~400 km/s. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 27-28 Jul.
Within the 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 isolated active levels on 5-7 Aug. It will be quiet to unsettled for the rest of time.
	Published:	2018-08-03 02:04 UTC
	Forecaster:	021

During last week, solar activity was very low. There was no active region on the visible disk, with no C class and above flares produced. The F10.7 index ranged from 69 sfu to 70 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached a peak of about 460 km/s on 8 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 coronal hole high speed stream, the geomagnetic field is expected to reach isolated active levels on 11-12 Aug. It will be quiet to unsettled for the rest of time.
	Published:	2018-08-10 03:41 UTC
	Forecaster:	010

During last week, solar activity was very low. There was one active region on the visible disk, AR2718, with no C class and above flare produced. The F10.7 index ranged from 67 sfu to 70 sfu. Due to the effect of a coronal hole high speed stream, the solar wind speed reached a peak of about 410 km/s on 11 Aug, and the geomagnetic field reached active levels for 3 hours. Due to another coronal hole high speed stream, the solar wind speed reached a peak of about 510 km/s on 15-16 Aug, and the geomagnetic field reached active levels for 9 hours. It was quiet to unsettled for the rest of time.
Within the next week, solar activity is expected to be very low. Due to a recurrent coronal hole high speed stream, the geomagnetic field is expected to reach minor storm levels on 20-21 Aug. It will be quiet to unsettled for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach minor storm levels on 21-23 Jul.
	Published:	2018-08-17 00:54 UTC
	Forecaster:	035/021

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.