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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 video: 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.

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Most Recent Shock Candidates:

Dates

12 May 2023

09 May 2023

23 Apr 2023

UT

0550

2216

1703

day of year

132

129

113

F/R

fwd

fwd

fwd

Zone

4

3

3

Confidence Level

99%

98%

98%

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Current time in UTC Solar Wind Bulk Speed Solar Wind Density Solar Wind Thermal Speed Solar Wind NS Angle
Data ending at 0644 GMT on June 05, 2023 (2 minute ascii data)
Two Day PM Plot
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Data ending at 2353 GMT on June 03, 2023 (15 minute ascii data)
Two Week PM Plot
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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 Oct 15, 2020:

( 202, -62, 12 )

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The Proton Monitor (PM) is one of the scientific sensors in the Charge, Element, and Isotope Analysis System (CELIAS) instrument package aboard the SOHO spacecraft.

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