Viewing archive of Thursday, 20 January 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Jan 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 20 Issued at 2200Z on 20 Jan 2022IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M5 event observed at
20/0601Z from Region 2929 (N08W88). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares and a slight chance for an M-class
flare on day one (21 Jan) and expected to be very low with a slight
chance for a C-class flare on days two and three (22 Jan, 23 Jan).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 568 km/s at 19/2117Z. Total IMF reached 5
nT at 20/0534Z. The maximum southward component of Bz reached -1 nT at
20/0839Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 22 pfu at 20/1015Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 2656 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (21 Jan) and quiet to
active levels on days two and three (22 Jan, 23 Jan). Protons greater
than 10 Mev have a slight chance of crossing threshold on day one (21
Jan).
III. Event Probabilities 21 Jan to 23 Jan
| Class M | 10% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 20% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Jan 099 Predicted 21 Jan-23 Jan 095/093/091 90 Day Mean 20 Jan 097
V. Geomagnetic A Indices
Observed Afr/Ap 19 Jan 015/019 Estimated Afr/Ap 20 Jan 006/008 Predicted Afr/Ap 21 Jan-23 Jan 008/008-009/010-010/012
VI. Geomagnetic Activity Probabilities 21 Jan to 23 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 35% |
| Minor storm | 05% | 05% | 15% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 25% | 50% |
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 |