Viewing archive of Monday, 29 January 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Jan 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 29 Issued at 2200Z on 29 Jan 2024IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M6 event observed at
29/0438Z from Region 3559 (N26W83). There are currently 3 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (30 Jan, 31 Jan,
01 Feb).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 483 km/s at 29/0332Z. Total IMF reached 8
nT at 28/2226Z. The maximum southward component of Bz reached -6 nT at
29/1457Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 136 pfu at 29/1805Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 111 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (30 Jan, 31 Jan) and
quiet levels on day three (01 Feb). Protons greater than 10 Mev are
expected to cross threshold on day one (30 Jan) and have a slight chance
of crossing threshold on day two (31 Jan).
III. Event Probabilities 30 Jan to 01 Feb
| Class M | 40% | 25% | 25% |
| Class X | 01% | 01% | 01% |
| Proton | 99% | 15% | 01% |
| PCAF | red | ||
IV. Penticton 10.7 cm Flux
Observed 29 Jan 140 Predicted 30 Jan-01 Feb 140/140/145 90 Day Mean 29 Jan 157
V. Geomagnetic A Indices
Observed Afr/Ap 28 Jan 005/006 Estimated Afr/Ap 29 Jan 008/008 Predicted Afr/Ap 30 Jan-01 Feb 010/012-013/015-007/008
VI. Geomagnetic Activity Probabilities 30 Jan to 01 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 20% |
| Minor storm | 10% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 40% | 40% | 25% |
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 | M1.8 |
| 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 | 157.7 +21.2 |
| Last 30 days | 171.7 +57.7 |