Viewing archive of Monday, 16 January 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Jan 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 16 Issued at 2200Z on 16 Jan 2023IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C8 event observed at
16/0923Z from Region 3182 (S17W75). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(17 Jan, 18 Jan, 19 Jan).
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 534 km/s at 16/0315Z. Total IMF
reached 14 nT at 15/2300Z. The maximum southward component of Bz reached
-9 nT at 15/2254Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 546 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (17 Jan, 18 Jan)
and quiet to active levels on day three (19 Jan). Protons have a slight
chance of crossing threshold on days one, two, and three (17 Jan, 18
Jan, 19 Jan).
III. Event Probabilities 17 Jan to 19 Jan
| Class M | 60% | 60% | 60% |
| Class X | 15% | 15% | 15% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 16 Jan 228 Predicted 17 Jan-19 Jan 226/226/226 90 Day Mean 16 Jan 143
V. Geomagnetic A Indices
Observed Afr/Ap 15 Jan 017/023 Estimated Afr/Ap 16 Jan 014/015 Predicted Afr/Ap 17 Jan-19 Jan 008/008-007/010-011/015
VI. Geomagnetic Activity Probabilities 17 Jan to 19 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 35% |
| Minor storm | 01% | 05% | 20% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 20% | 30% | 30% |
| Major-severe storm | 20% | 30% | 50% |
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Filaments and prominences 481AR 13901 90Incoming & Unnumbered Active Regions 1245Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 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 | 155.2 +4.4 |