Viewing archive of Saturday, 6 January 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Jan 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 6 Issued at 2200Z on 06 Jan 2024IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C7 event observed at
06/1535Z from Region 3538 (N21W28). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (07 Jan, 08 Jan, 09 Jan).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 399 km/s at 05/2129Z. Protons greater than 10 MeV at
geosynchronous orbit reached a peak level of 6 pfu at 06/0030Z.
Electrons greater than 2 MeV at geosynchronous orbit reached a peak
level of 155 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (07 Jan,
08 Jan, 09 Jan). Protons have a slight chance of crossing threshold on
days one, two, and three (07 Jan, 08 Jan, 09 Jan).
III. Event Probabilities 07 Jan to 09 Jan
| Class M | 35% | 35% | 35% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Jan 159 Predicted 07 Jan-09 Jan 160/165/165 90 Day Mean 06 Jan 148
V. Geomagnetic A Indices
Observed Afr/Ap 05 Jan 004/004 Estimated Afr/Ap 06 Jan NA/ NA Predicted Afr/Ap 07 Jan-09 Jan 008/008-007/010-007/008
VI. Geomagnetic Activity Probabilities 07 Jan to 09 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 15% |
| Minor storm | 05% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 15% |
| Major-severe storm | 25% | 40% | 10% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/19 | M3.1 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 68.9 -71.7 |
| Last 30 days | 92.1 -23.2 |