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the latest 48 hours of solar wind data

brought to you by the CELIAS/MTOF Proton Monitor on the SOHO Spacecraft

ISSI Game Changers: 25 Years of SOHO and First Glimpses of Parker Solar Probe and Solar Orbiter

talking sun There is a problem with the motor controlling the High Gain Antenna on the SOHO spacecraft.   Science data coverage may be less than complete for 1-2 weeks every 90 days (when the spacecraft gets 'flipped').   The next "keyhole" period can be found in this table.

5 minute and 30 second PM data in ascii format
Interplanetary shocks and other interesting events Follow shockspot on Twitter

An energetic particle flare monitor using the PM background rate
An X-ray flare monitor using data from the CELIAS/SEM sensor

Most Recent Shock Candidates:
Date UT day of year F/R Zone Confidence Level
12 Jun 2021 1538 163 fwd 2 68%
7 Jun 2021 1035 158 fwd 3 92%
26 May 2021 1153 146 fwd 4 99%

Current time in UTC

Data ending at 0612 GMT on Aug 5, 2021 (ascii data available)

Data ending at 2328 GMT on Aug 4, 2021 (ascii data available)

The Proton Monitor (PM) is one of the scientific sensors on the SOHO spacecraft. What's being plotted??
the PM sensor
the SOHO Spacecraft

Where is SoHO?

The predicted position of the SOHO spacecraft in the GSE coordinate system (X,Y,Z) in Earth radii at 0610 GMT on
Aug 5, 2021:		 Daily Orbit Data:

Launch through 1996,  1997,  1998,  1999,  2000,  2001,  2002, 

2003,  2004,  2005,  2006,  2007,  2008  2009  2010  2011 

2012  2013  2014  2015  2016  2017  2018  2019  2019  2020  2021 
( 206, 81, 8)

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