Viewing archive of Tuesday, 2 January 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Jan 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 2 Issued at 2200Z on 02 Jan 2024IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
02/1830Z. There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a chance for X-class flares on days one, two, and three (03 Jan, 04
Jan, 05 Jan).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 454 km/s at 02/1135Z. Total IMF reached 12
nT at 02/0207Z. The maximum southward component of Bz reached -11 nT at
01/2100Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 4 pfu at 02/0030Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 139 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (03 Jan) and quiet levels
on days two and three (04 Jan, 05 Jan). Protons have a chance of
crossing threshold on days one, two, and three (03 Jan, 04 Jan, 05 Jan).
III. Event Probabilities 03 Jan to 05 Jan
| Class M | 60% | 60% | 60% |
| Class X | 25% | 25% | 25% |
| Proton | 25% | 25% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jan 142 Predicted 03 Jan-05 Jan 140/145/145 90 Day Mean 02 Jan 149
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jan 006/007 Estimated Afr/Ap 02 Jan 010/015 Predicted Afr/Ap 03 Jan-05 Jan 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 03 Jan to 05 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 25% | 20% | 15% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/19 | M1.6 |
| Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 157.5 +21 |
| Last 30 days | 168.7 +50.9 |