Viewing archive of Thursday, 22 January 2015
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2015 Jan 22 1240 UTC
SIDC Forecast
Solar flares
Active (M-class flares expected, probability >=50%)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 22 Jan 2015 | 124 | 010 |
| 23 Jan 2015 | 126 | 007 |
| 24 Jan 2015 | 129 | 007 |
Bulletin
Solar activity has been dominated by the region on the east solar limb (NOAA AR 2268). It produced several C-class and one M1.4 flare at 04:52 UT. More M-class flares can be expected. Geomagnetic conditions were dominated by a fast speed stream that is now decaying. Planetary and local K indices reached 4. Quiet to unsettled conditions are expected.
Today's estimated international sunspot number (ISN): 048, based on 03 stations.Solar indices for 21 Jan 2015
| Wolf number Catania | 068 |
| 10cm solar flux | 124 |
| AK Chambon La Forêt | 029 |
| AK Wingst | 013 |
| Estimated Ap | 013 |
| Estimated international sunspot number | 033 - Based on 10 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types |
|---|---|---|---|---|---|---|---|---|---|
| 22 | 0443 | 0452 | 0502 | ---- | M1.4 | --/2268 |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Whitehorse, YT, Yellowknife, NTFairbanks, AK
Latest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
Support 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!
Latest alerts
Thursday, 10 April 2025
23:00 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 22:47 UTC
20:45 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 21:37 UTC
01:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 01:41 UTC
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/08 | M1.5 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 141.4 +7.2 |
| Last 30 days | 137.9 +0.4 |