Sidc Domain Overview🔒 SSL Verified

Table of Contents

• ↓ Observations
• ↓ Space Weather Services
• ↓ Research
• ↓ News
• ↓ Activities
• ↓ Legal Notices
• ↓ Top Alternatives to sidc.be

6-Month Traffic Trend Estimate

Official Contact & Profiles

Visual representation extracted from sidc.be

Content Snippets from sidc.be

"Solar flaring activity has been low over the past 24 hours, with a few C-class flares. The strongest flare was a C3.5 flare (SIDC Flare 8776) peaking at 02:45 UTC on October 20, associated with SIDC Sunspot Group 966 (NOAA Active Region 4557, magnetic type beta). There are currently three numbered active regions on the solar disk, all with a beta magnetic configuration. SIDC Sunspot Group 986 (NOAA Active Region 4559) has decayed into plage. The solar flaring activity is expected to be low to moderate over the next 24 hours, with C-class flares very likely and a chance for M-class flares. A Coronal Mass Ejection (SIDC CME 731) was observed in LASCO/C2 and STEREO-A coronagraph imagery, lifting off from the northwest limb starting from around 01:25 UTC on October 20. It is most likely a backsided event that is not expected to impact Earth. SIDC CME 732 was observed in LASCO/C2 and STEREO-A coronagraph imagery, lifting off from the northwest limb starting from 09:48 UTC on October 20. It is most likely a backsided event that is not expected to impact Earth. No other Earth-directed CMEs were observed in the available coronagraph imagery during the past 24 hours. The southern, mid-latitude, positive polarity coronal hole (SIDC Coronal Hole 159) has been crossing the central meridian since October 17. The equatorial, negative polarity coronal hole (returning SIDC Coronal Hole 181) has been crossing the central meridian since October 19. The greater than 10 MeV proton flux, as measured by GOES-18, was at nominal levels over the past 24 hours. There is a small chance that the greater than 10 MeV proton flux will increase in case of strong flares from SIDC Sunspot Group 980 (NOAA AR 4551). The greater than 2 MeV electron flux measured by GOES 18 and GOES 19 was below the 1000 pfu threshold during the past 24 hours. The 24-hour electron fluence was at normal levels and is expected to remain so over the next 24 hours."

"Geomagnetic conditions globally were at quiet levels (NOAA Kp 0+ to 1) during the past 24 hours. Geomagnetic conditions locally were mostly at quiet levels (K Bel 1 to 2) during the past 24 hours, with a brief active interval (K Bel 4) between 12:00 and 13:00 UTC on October 19. Mostly quiet conditions are expected initially over the next 24 hours, with possible active intervals (NOAA Kp 4), in case of the late arrival of a high-speed stream from the southern, positive polarity coronal hole (SIDC Coronal Hole 159). Over the past 24 hours, the solar wind parameters (SOLAR-1 and ACE) reflected slow solar wind conditions. The solar wind speed was between 370 km/s and around 400 km/s. The interplanetary magnetic field was between 4 nT and 9 nT. The Bz component varied between -6 nT and 7 nT. The interplanetary magnetic field angle phi was initially in the negative sector, with a positive interval 01:40 and 07:50 UTC on October 20. Enhanced conditions may be expected over the next 24 hours, in case of a late arrival of a high-speed stream from the southern, positive polarity coronal hole (SIDC Coronal Hole 159)."

Key Topics & Focus Areas for sidc.be:

Observations

Space Weather Services

Research

News

Activities

Legal Notices