Viewing archive of Thursday, 1 August 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Aug 01 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
01 Aug 2019	067	013
02 Aug 2019	067	007
03 Aug 2019	067	007

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 550 km/s with interplanetary magnetic field magnitude of 4 nT. The Earth is inside the high speed stream from a negative polarity coronal hole. The solar wind speed peaked yesterday at 584 km/s, with interplanetary magnetic fields up to 10 nT. Active geomagnetic conditions were observed locally (K Dourbes = 4) and unsettled at planetary levels (Kp = 3). Mostly unsettled conditions are expected in the next 48 h (active periods remain possible).

Today's estimated international sunspot number (ISN): 000, based on 23 stations.

Solar indices for 31 Jul 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	019
AK Wingst	010
Estimated Ap	009
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

All times in UTC

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