STRaND-1 magnetic field vector analysis

STRaND-1 magnetic field vector analysis by DK3WN
                                                              (Click to enlarge)

 Germany (Mike)                          Australia (Colin)

 West Coast US (Ken)                     Japan (Mineo)

Subject: STRaND-1 magnetometer data analysis
From: Mike Rupprecht
Date: Fri, 29 Mar 2013 19:45:50 +0100

Hi all,

I finished my orbit simulation software and did some interesting analyses.
See attached 4 screenshots. These data are from Colin - Australia, Ken-
West Coast US, Mineo - Japan und Mike.

You can see the calculated F value from the WMM2010 model and the real F
(calculated by mag x, y, z) sent by STRaND. It is very intersting to see
the deviation here in Europe and in Japan.

Maybe I will add a spline function to smooth the real F curve later.

The plots in the world mag map are not very precise because I have some
issues with the y conversion into mercator projection. Will fix that later.

@Chris: I assume the mag telemetry values are not calibrated, so we have
the raw values from the magnetometer?

Additionally I optimized the telemetry decoder software. I calculated
the time offset of the OBC clock and can now recalculate the "real" time.
In this way I got the timestamp for Mineo's and Ken's telemetry file.
Colin and I using a software which adds a timestamp to the kiss file -
so we have a accurate time for later processing.

So, I wish you all a great Easter time.
Best wishes

 World Magnetic Model
 NOAA National Geophysical Data Center

 STRaND-1 Telemetry Decoder by DK3WN

 Geospatial Information Authority of Japan, Geomagnetic Survey
 Kakioka Magnetic Observatory, Japan Meteorological Agency
 Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University

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