Viewing archive of Tuesday, 5 March 2019
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2019 Mar 05 1247 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 05 Mar 2019 | 072 | 006 |
| 06 Mar 2019 | 072 | 011 |
| 07 Mar 2019 | 072 | 010 |
Bulletin
The solar activity has been quiet over the past 24 hours. The X-ray flux remains below B-level. Two regions show some mild activity, but no sunspots are clearly visible on the disc. Solar activity is expected to remain at low levels.
No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.
Solar wind speed fluctuated around 350 km/h and 450 km/h, the total interplanetary magnetic field strength was steady and remained below 6.5 nT. The Bz component fluctuated between -5 nT and 5 nT. The solar wind parameters are expected to remain slightly enhanced due to several small patchy equatorial coronal holes (negative polarity) that dominate the current space weather conditions for the following days with a wind speed ranging from nominal values (around 350 km) to 400-450 km/s.
The geomagnetic conditions were quiet over the past 24 hours. The geomagnetic conditions are expected to remain mostly quiet. In response to the slightly enhanced interplanetary magnetic field due to small patchy equatorial coronal holes and possible prolonged period of southward directed Bz component, short periods of unsettle are possible.
Today's estimated international sunspot number (ISN): 000, based on 15 stations.Solar indices for 04 Mar 2019
| Wolf number Catania | 000 |
| 10cm solar flux | 071 |
| AK Chambon La Forêt | 012 |
| AK Wingst | 006 |
| Estimated Ap | 007 |
| Estimated international sunspot number | 000 - Based on 25 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
Latest news
M8.1 solar flare with earth-directed CME
X1.9 solar flare, Coronal hole faces Earth
X4.0 solar flare
Latest forum messages
Support SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |