Viewing archive of Tuesday, 14 April 2020
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2020 Apr 14 1231 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 | |
|---|---|---|
| 14 Apr 2020 | 070 | 009 |
| 15 Apr 2020 | 070 | 009 |
| 16 Apr 2020 | 070 | 007 |
Bulletin
The Sun was spotless again. Solar activity was at very low levels and is expected to remain so.
The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal values and are expected to remain so.
No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.
Solar wind became slightly more enhanced during the second half of the period. Solar wind speed varied mostly between 365 and 425 km/s, and Bz oscillated between -6 and + 7 nT (DSCOVR). The direction of the interplanetary magnetic field (phi angle) was predominantly oriented towards the Sun (negative sector).
Geomagnetic activity was at quiet to unsettled levels and is expected to remain so during the next few days.
Today's estimated international sunspot number (ISN): 000, based on 23 stations.Solar indices for 13 Apr 2020
| Wolf number Catania | /// |
| 10cm solar flux | 070 |
| AK Chambon La Forêt | 012 |
| AK Wingst | 008 |
| Estimated Ap | 006 |
| Estimated international sunspot number | 000 - Based on 32 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
X1.5 solar flare
M2.7 solar flare, CME arrival possible
Complex sunspot region 4366
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 | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.3 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 133.3 +47.4 |
| Last 30 days | 96.9 +35.1 |