Viewing archive of Tuesday, 20 June 2000
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 2000 Jun 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 172 Issued at 2200Z on 20 JUN 2000IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z SOLAR ACTIVITY HAS BEEN LOW. REGION 9042 (N24W24)
PRODUCED TODAY'S LARGEST EVENT, A C6/1N AT 1928Z WHICH WAS
ACCOMPANIED BY A WEAK TYPE II RADIO SWEEP. THE REGION APPEARED TO BE
DECLINING SLIGHTLY. REGION 9046 (N21E06) CONTINUES TO BE THE LARGEST
GROUP ON THE DISK BUT PRODUCED ONLY A SUBFLARE DURING THE PAST 24
HOURS. REGION 9052 (S26E29) EXHIBITED SLOW GROWTH BUT WAS STABLE.
NEW REGION 9054 (N09E64) ROTATED INTO VIEW TODAY AS A SMALL C-TYPE
GROUP.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
THERE IS A CHANCE FOR AN ISOLATED M-CLASS EVENT FROM REGION 9042 OR
9046 OVER THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE PREDOMINANTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 21 JUN to 23 JUN
| Class M | 25% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 20 JUN 184 Predicted 21 JUN-23 JUN 185/185/180 90 Day Mean 20 JUN 186
V. Geomagnetic A Indices
OBSERVED AFR/AP 19 JUN 008/009 ESTIMATED AFR/AP 20 JUN 007/010 PREDICTED AFR/AP 21 JUN-23 JUN 010/012-010/015-010/010
VI. Geomagnetic Activity Probabilities 21 JUN to 23 JUN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
Filaments and prominences 534AR 13901 116Incoming & Unnumbered Active Regions 1249Strong far side CME 226AR 13903 1
More topicsSupport 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!
Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 156.1 +4.7 |