Solar Wind Conditions
Note: Information
regarding Oct. 1995 Magnetic Cloud Event
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Data Source
These data are derived from measurements taken by the WIND spacecraft's
SWE
and MFI experiments. This spacecraft is a component of the NASA/ESA
International Solar Terrestrial
Program (ISTP.)
The solar wind propagation delay time calculation used here is conceptually
similar to the T(IMF) calculation in Kelly, et al., JGR 91, 5629, 1986.
Key
- Day of Year is measured from the beginning of the year, with January 1
being Day 1.
- Heavy black curves are recent WIND data.
- Broken curves are predictions based on WIND data from one solar rotation
period (approximately 27 days) before the time shown.
- The small chunks of data at the most recent times are from data received
from the latest telemetry passes and distributed as NRT data. The older
continuous data are from key parameter data files. The plots are switched from
NRT to Key Parameter data as soon as the Key Parameter data becomes available.
PRELIMINARY DATA - not for citation or scientific use
For information on this dataset, contact Drs. Ron Lepping and Keith Ogilvie at Goddard Space Flight Center
See NASA's spacecraft trajectory
plots for WIND trajectory information.
Note: Very high values of Solar Wind Speed, Solar Wind Pressure, IMF
Magnitude and Bz, and Polar Cap Potential are likely indications that WIND
has reentered the Earth's magnetosphere; such data is not
indicative of solar wind conditions or impending severe geomagnetic
disruption.
This page has been accessed 
times since March 22, 1996.
Notice:
Section anchors are now in place, so you can jump to one of
these graphs directly off a hotlist.
Andrew Urquhart
(urquhart@rice.edu)
Rice University
Text last updated 4/16/97.