Viewing archive of Thursday, 16 March 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Mar 16 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 16 Mar 2017 until 18 Mar 2017
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
16 Mar 2017071005
17 Mar 2017072006
18 Mar 2017073008

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10 MeV proton flux remained at background levels over the past 24 hours. Quiet flaring conditions are expected to continue. The solar wind speed has increased from around 350 to 425 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 7 nT. The Bz component fluctuated between -5 and +7 nT, but has been mainly positive. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 0-4 (Dourbes) over the past 24 hours. There are a couple of small coronal holes located in the Western hemisphere which may create small enhancements in the solar wind. Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 15 Mar 2017

Wolf number Catania011
10cm solar flux070
AK Chambon La Forêt016
AK Wingst006
Estimated Ap009
Estimated international sunspot number000 - Based on 33 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-flare2025/12/08X1.1
Last M-flare2025/12/10M4.4
Last geomagnetic storm2025/12/10Kp6+ (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025155.3 +63.5
Last 30 days107.6 +8.5

This day in history*

Solar flares
12001M8.1
22001M6.89
32001M4.41
42024M2.2
52000M1.99
DstG
11977-71G2
21960-61
32006-55G1
41957-54G1
52014-53
*since 1994

Social networks