Viewing archive of Monday, 7 June 2004

Solar activity report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2004 Jun 07 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 159 Issued at 2200Z on 07 Jun 2004

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity increased to low levels today. Region 621 (S14W57) produced the largest flare of the period, a long duration C2 x-ray event that occurred at 07/0045Z. A faint, asymmetrical full halo CME resulted from the event which appears to have a weak Earthward directed component. This region has undergone further decay today in sunspot coverage. Region 627 (S08E04) grew in sunspot area and magnetic complexity. Region 624 (S08W18) produced a low level B-class flare at 06/2253Z. Regions 628 (S09E13), 629 (S04E22), and 630 (N13E56) were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at very low to low levels.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels throughout the period. Weak recurrent coronal hole influences and associated elevated wind speeds are anticipated on 8 and 9 June, especially at higher latitudes. A glancing blow from the faint full halo CME that resulted from the long duration C2 flare is expected to transit the Earth's geomagnetic field on 10 June.
III. Event Probabilities 08 Jun to 10 Jun
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       07 Jun 089
  Predicted   08 Jun-10 Jun  090/100/105
  90 Day Mean        07 Jun 104
V. Geomagnetic A Indices
  Observed Afr/Ap 06 Jun  012/011
  Estimated     Afr/Ap 07 Jun  008/010
  Predicted    Afr/Ap 08 Jun-10 Jun  008/012-010/015-012/015
VI. Geomagnetic Activity Probabilities 08 Jun to 10 Jun
A. Middle Latitudes
Active20%25%30%
Minor storm05%05%10%
Major-severe storm01%01%05%
B. High Latitudes
Active30%35%40%
Minor storm10%15%15%
Major-severe storm05%10%10%

All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M8.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days114.4 -44.3

This day in history*

Solar flares
12001M5
22023M2.9
32023M2.6
42001M2.52
51998M2.49
DstG
11995-65G1
22014-57
32001-55G1
42002-49G1
51990-47
*since 1994

Social networks