LIVE from College Park...

the latest 48 hours of solar wind data

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

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.

Current and past 5 and 30 minute 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
31 Aug 2019 0353 243 fwd 2 68%
27 Jul 2019 0812 208 fwd 4 99%
8 Jul 2019 1838 189 fwd 4 99%

Current time in UTC

Data ending at 2213 GMT on Sep 18, 2019 (ascii data available)

Data ending at 0000 GMT on Sep 18, 2019 (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 2210 GMT on
Sep 18, 2019:
Daily Orbit Data:

Launch through 1996199719981999200020012002

200320042005200620072008  2009  2010  2011 

2012  2013  2014  2015  2016  2017  2018  2019  2019 
( 227, 103, -6)

the MTOF public information home page                             CREDITS