Viewing archive of Sunday, 7 January 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Jan 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 7 Issued at 2200Z on 07 Jan 2024IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 event observed at
07/0756Z from Region 3536 (N05W20). There are currently 10 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 (08 Jan, 09 Jan, 10 Jan).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 489 km/s at 07/0012Z, although that value is suspect.
Protons greater than 10 MeV at geosynchronous orbit reached a peak level
of 2 pfu at 07/0210Z. Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 159 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (08 Jan, 09 Jan)
and quiet levels on day three (10 Jan). Protons have a slight chance of
crossing threshold on days one, two, and three (08 Jan, 09 Jan, 10 Jan).
III. Event Probabilities 08 Jan to 10 Jan
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Jan 167 Predicted 08 Jan-10 Jan 165/165/165 90 Day Mean 07 Jan 148
V. Geomagnetic A Indices
Observed Afr/Ap 06 Jan 002/001 Estimated Afr/Ap 07 Jan 005/007 Predicted Afr/Ap 08 Jan-10 Jan 007/010-007/008-005/005
VI. Geomagnetic Activity Probabilities 08 Jan to 10 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 10% |
| Minor storm | 15% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 15% | 20% |
| Major-severe storm | 40% | 10% | 15% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/10 | M4.2 |
| Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
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| October 2024 | 166.4 +25 |
| November 2024 | 187.3 +20.9 |
| Last 30 days | 162.6 +13.7 |