Space Environment Prediction Center





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	Coronal Hole Index
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OVERVIEW & FORECAST

Daily Review
Day 1 To 3
Weekly Review
Weekly Forecast

During the past 24 hours, solar activity was very low. Three sunspot regions were on the visible disk without C-class or above flare produced. The solar wind speed decreaseed to about 340 km/s. The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm level.
	Published:	2022-07-01 00:30 UTC
	Forecaster:	037/029

Within the next three days, solar activity is expected to be low. The geomagnetic field is expected to be mainly quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit will maintain at minor storm levels on 1-3 Jul.
	Published:	2022-07-01 00:30 UTC
	Forecaster:	037/029

During the last week, solar activity was mainly at low levels, and was at very low levels on 28 Jun and 30 Jun. Nine active sunspot regions (AR3034-AR3035, AR3038, AR3040-AR3045) were on the visible disk with 10 C-class flares produced, and no M or above class flares produced. The F10.7 index decreased from 115 sfu to about 92 sfu. Due to the effect of the coronal hole high speed stream, the solar wind speed reached the peak value of about 640 km/s on 26 Jun, and then gradully decreased to about 340km/s. The geomagnetic field reached minor storm levels for six hours and active levels for twenty-one hours. The geomagnetic field was at quiet to unsettled levels for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 27-30 Jun.
	Published:	2022-07-01 06:30 UTC
	Forecaster:	037/029

Within the next week, solar activity is expected to be mainly low. Due to the effect of the coronal hole high speed stream, the geomagnetic field will reach active levels for short periods on 6-7 Jul. It will be at quiet to unsettled levels during the other time.
	Published:	2022-07-01 06:30 UTC
	Forecaster:	037/029

ALERTS


	Space environment alerts have been issued today.


	01:15 UTC 01 Jul 2022	00:15 UTC 30 Jun 2022	01:15 UTC 29 Jun 2022	01:15 UTC 28 Jun 2022	01:00 UTC 26 Jun 2022

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:B5.4
	Peak Time:2022 Jun 30 23:17 UTC

	Updated:2022 Jul 01 19:09 UTC
	>>more data<<


	Current 5-min:3.701e-1 /cm².sr.s
	24-hr Max:5.261e-1 /cm².sr.s

	Updated:2022 Jul 01 19:00 UTC
	>>more data<<


	Speed:351.7 km/sec
	Density:18.2 protons/cm³

	Updated:2022 Jul 01 19:08 UTC
	>>more data<<


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

	Updated:2022 Jul 01 18:00 UTC
	>>more data<<


	Current 5-min:5.906e+3 /cm².sr.s
	Integral Flux:2.620e+8 /cm².sr.day

	Updated:2022 Jul 01 19:00 UTC
	>>more data<<


	10.7cm Flux:96 sfu

	Update:2022 Jun 30 UTC
	>>more data<<


	SSN:40

	Update:2022 Jun 30 UTC
	>>more data<<