SIDC Ursigram

3-day Forecast of Solar and Geomagnetic Activity: Latest Issue and Archive

INFO FROM SIDC - RWC BELGIUM 2017 Jul 27 12:12:21

Solar activity was at very low levels, and is expected to remain so. The
solar disk was spotless. No earth-directed coronal mass ejections (CMEs)
were observed in available coronagraphic imagery. The greater than 10 MeV
proton flux remained slightly above background levels.
Earth is exiting the high speed stream (HSS) from a positive polarity
coronal hole (CH). Wind speed gradually decreased from 590 km/s to its
current values near 450 km/s (DSCOVR). Bz oscillated between -4 and +3 nT
until about 19UT, when it started a much smoother variation between -3 and
+2 nT. The interplanetary magnetic field was mostly directed away from the
The geomagnetic field was at quiet levels. Mostly quiet geomagnetic
conditions are expected, with a chance on an unsettled episode.

SIDC Data Products and Services

Sunspots: data and graphs

Monthly Report on the
International Sunspot Number

Provisional AA Index

CACTus CME detection:
real time and catalog

Daily Space Weather

Latest SWAP image

Latest USET Images

Latest LYRA curve

Latest HUMAIN Callisto qkl

Latest Callisto Observations

Latest SDO Images

SIDC Fast Alert Products

2017 Jul 23 1206 UTC
SoHO/LASCO C2 images show a full halo CME from 4:36UT onwards. STEREO [more]

2017 Jul 19 1216 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2014 Sep 10 1926 UTC
A class X1.6 solar X-ray flare occurred on 2014/09/10 with peak time 17:45 [more]

2014 Sep 07 1337 UTC
The latest halo CME alert generated by the CACTus software package: 025|2014/09/06 [more]

The SIDC follows an open data policy which means that you can freely use our data. We kindly request however that you include a reference to the SIDC (Solar Influences Data Analysis Center, Royal Observatory of Belgium) in case of public use of those data.
Please note that not all data linked on this page is proprietary to SIDC.