Viewing archive of Friday, 19 July 2024

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2024 Jul 19 1231 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
19 Jul 2024210005
20 Jul 2024200003
21 Jul 2024195003

Solar Active Regions and flaring

Solar flaring activity was moderate during the past 24 hours, with an M3.2 flare emitted from NOAA Active Region (AR) 3753 (magnetic configuration Beta, Catania sunspot group no 8) at 19 Jul 08:23 UTC. NOAA AR 3751 (magnetic configuration Beta-Gamma-Delta, Catania sunspot group no 12) produced most of the C-class flaring activity, including the second brightest flare, a C6 at 18 Jul 15:49 UTC. In the next 24 hours isolated M-class flare(s) are still likely to occur with a small chance of an X-class flare.

Coronal mass ejections

No Earth-directed Coronal Mass Ejections (CME) were observed in the last 24 hours.

Solar wind

Solar Wind (SW) conditions remained typical of the slow SW regime during the past 24 hours. The SW speed varied between 280 and 360 km/s, while the total interplanetary magnetic field (Bt) ranged between 2 and 6 nT during the past 24 hours. The North-South magnetic component (Bz) fluctuated between -4 and 4 nT, while the interplanetary magnetic field phi angle was directed predominantly away from the Sun in the past 24 hours. The SW conditions are expected to follow the slow SW pattern for the next 24 hours.

Geomagnetism

During the last 24 hours geomagnetic conditions were globally quiet (NOAA Kp 1 to 2-), while locally they had two three-hour periods of unsettled conditions (K BEL 3 at 18 Jul 12:00-15:00 UTC and at 19 Jul 09:00-12:00 UTC). They are expected to remain quiet both globally and locally in the next 24 hours.

Proton flux levels

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was at nominal levels during the last 24 hours and is expected to remain at these levels during the next 24 hours. The 24h electron fluence was at very low levels during the past 24 hours and is expected to remain at these levels for the following 24 hours.

Today's estimated international sunspot number (ISN): 280, based on 21 stations.

Solar indices for 18 Jul 2024

Wolf number Catania303
10cm solar flux209
AK Chambon La Forêt010
AK Wingst005
Estimated Ap006
Estimated international sunspot number284 - Based on 23 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

<< Go to daily overview page

Latest news

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!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.4
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
Last 30 days128.1 -22.5

This day in history*

Solar flares
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
11960-272G3
21973-173G3
32001-101G1
41976-101G1
51994-96G3
*since 1994

Social networks