Monday, December 26, 2016

Some Data Today 26th December 2016

In the past 24 hours, there were no spotted regions on the Sun, and not a
single flare was observed. Very low solar activity (no C flares) is
expected in the next 24 hours.
Solar wind speed measured by DSCOVR varied between about 610 and 740 km/s
in the past 24 hours under the influence of a positive coronal hole high
speed stream, while the magnitude of the Interplanetary Magnetic Field
(IMF) varied between about 3 and 6 nT. The influence of the high speed
stream is expected to continue in the next 24 hours. Quiet to active
geomagnetic conditions (K Dourbes between 2 and 4; NOAA Kp between 2 and 5)
were registered in the past 24 hours. Quiet to active levels (K Dourbes <
5) are expected on December 26 and 27, with a slight chance for minor storm
episodes (K Dourbes = 5). Quiet to unsettled levels (K Dourbes < 4) are
expected on December 28.

Earth is inside a stream of solar wind flowing from this large coronal hole. Credit: NASA/SDO.
 For the 3rd day in a row the sun has no sun spots.

Kp Index shows red in most stations, showing increased aggitation and prospect of strong events.

Schumann Resonances have quieten and we can see the resonance waves yesterday with the Chilean 7.7R. So today things are quiet

GOES Magnetometer touched below 50nT in the early hours, gives signs of strong events.

Finally The proton monitor shows very large stormy wind speeds over 700km/s. While at the same time the density is dropping a bit.

The Proton Monitor (PM) is a subsensor of the MTOF instrument, which is one of the 3 time-of-flight instruments comprising the CELIAS experiment on the SOHO spacecraft. MTOF determines high resolution mass spectra of heavy solar wind ions and uses a very wide bandwidth energy-per-charge analyzer to maximize counting statistics. The PM was designed to assist in the interpretation of MTOF data and for that reason uses a similar wide bandwidth analyzer that limits the accuracy of derived solar wind parameters. In addition, since SOHO is not a spinning spacecraft, the deflection system was designed to have a wide angular acceptance (+- 15 deg). For technical reasons this leads to an ambiguity between incident angle and incident energy/charge; this ambiguity was designed into the PM to match as closely as possible the behavior of the deflection system for the main MTOF sensor. It is not the energy/charge but rather the mass/charge that is needed for interpretation of the MTOF mass data.
The data presented here are derived from sets of 6 rates (one for each voltage step of the PM deflection system) obtained every 30 seconds. The voltage steps are spaced logarithmically (about 60% step size) from about 0.3 to 3 kV. At a given voltage step the energy per charge dynamic range is slightly more than a factor of 2. The overall geometry factor of the PM is about 1.0 x 10**-4 cm**2.

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