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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

23 Jul 2022

16 Jul 2022

15 Jun 2022

UT

0229

0320

0406

day of year

204

197

166

F/R

fwd

fwd

fwd

Zone

4

1

3

Confidence Level

99%

60%

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 1704 GMT on August 07, 2022 (2 minute ascii data)
Two Day PM Plot
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Data ending at 1729 GMT on August 06, 2022 (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:

( 214, 102, 2 )

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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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