Viewing archive of Saturday, 1 August 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Aug 01 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 01 Aug 2015 until 03 Aug 2015
Solar flares

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

10cm fluxAp
01 Aug 2015101021
02 Aug 2015103013
03 Aug 2015105007

Bulletin

Solar activity is low, no C-class flares in past 24 h. NOAA AR 2390 has beta-gamma magnetic field configuration and could produce C-class flares.

The Earth is under the influence of a fast speed stream emanating from a coronal hole, solar wind speeds are around 600 km/s with interplanetary magnetic field magnitudes of 5 nT. Active conditions were observed overnight and more active periods can be expected in the next 24 hours.

Today's estimated international sunspot number (ISN): 059, based on 15 stations.

Solar indices for 31 Jul 2015

Wolf number Catania///
10cm solar flux101
AK Chambon La Forêt025
AK Wingst023
Estimated Ap021
Estimated international sunspot number/// - Based on /// 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-flare2025/12/01X1.9
Last M-flare2025/12/04M6.0
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025186 +94.2
Last 30 days106.4 +13.7

This day in history*

Solar flares
12006X9.4
22006M8.68
32006M5.04
42003M3
52000M2.34
DstG
11959-90
21960-90
31958-65
41957-57G1
52003-55G1
*since 1994

Social networks