Viewing archive of Monday, 17 February 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Feb 17 1231 UTC

SIDC Forecast

Valid from 1230 UTC, 17 Feb 2020 until 19 Feb 2020
Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
17 Feb 2020071010
18 Feb 2020071007
19 Feb 2020071007

Bulletin

No active regions visible on the Sun. No flares observed, nor expected.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 340 km/s with interplanetary magnetic field magnitude of 2 nT. Quiet conditions have been observed in the past 24. The solar wind from a narrow negative polarity equatorial coronal hole could arrive to the Earth today, mostly unsettled conditions can be expected then (with possible isolated active periods).

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 16 Feb 2020

Wolf number Catania///
10cm solar flux071
AK Chambon La Forêt005
AK Wingst///
Estimated Ap003
Estimated international sunspot number000 - Based on 14 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 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!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/02/04X4.21
Last M-flare2026/03/28M1.3
Last geomagnetic storm2026/03/25Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
March 202685.2 +7
Last 30 days85.2 +8.6

This day in history*

Solar flares
12001X2.45
22014X1.45
32023X1.2
42024M3.2
52001M3.13
DstG
11959-154G3
21979-129G3
31989-125G3
41957-121G4
51984-86G2
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation

Social networks