Reference:..Gurnett, D.A. et al, The Polar plasma wave instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995.GURNETT@IOWAVE.physics.uiowa.edu

An FFT on 1024 values was used in calibrating the data; i.e., perform FFT, calibrate in frequency domain, perform inverse FFT to get calibrated time series.

Coordinate System Used:  local magnetic field-aligned, a spacecraft centered coordinate system where Z is parallel to the local B-field determined from Polar MFE, X points outward and lies in the plane defined by the Z-axis and the radial vector from the earth to the spacecraft, and Y completes a right-handed system and points eastward.  The X- and Z-axes are contained in the north-south plane.

Effective Bandwidth is 1.5*delta_f, where delta_f depends on the size of the FFT used to convert to the frequency domain, and delta_t.

This data comes is in snapshots of 31816 points per channel, every 9.2 seconds, where the duration of each snapshot is 0.045 seconds.  Since Epoch time is in milliseconds, the times for the data points will not be unique unless the Delta_T in milliseconds is added to the Epoch time for the snapshot.

The data in this file will be in sets of 31744 (31*1024) points per channel because the FFT size does not come out even within the number of points per snapshot.  To obtain the time for each point in the snapshot, increment each Epoch time after the first with Delta_T (in ms).

New versioned v04 data files were delivered to SPDF starting 2012/12/20

Polar Plasma Wave Instrument, High Frequency Waveform Receiver, 6-channel (~1.5 usec resolution) fields

Number of FFTs of size 1024 that were processed for one snapshot

Number of snapshots of size 31816 that were processed for this file

[NO LIST] HFWR Elec Field Antenna Ex (perp and outward in Local-Field Aligned/LFA coords)

[NO LIST] HFWR Elec Field Antenna Ey (perp and eastward in Local-Field Aligned/LFA coords)

[NO LIST] HFWR Elec Field Antenna Ez (parallel in Local-Field Aligned/LFA coords)

[NO LIST] HFWR Mag Field Antenna Bx (perp and outward in Local-Field Aligned/LFA coords)

[NO LIST] HFWR Mag Field Antenna By (perp and eastward in Local-Field Aligned/LFA coords)

[NO LIST] HFWR Mag Field Antenna Bz (parallel in Local-Field Aligned/LFA coords)

[NO LIST] Data Quality for Ex components(0 = OK, 1 = clipped or questionable)

[NO LIST] Data Quality for Ey components(0 = OK, 1 = clipped or questionable)

[NO LIST] Data Quality for Ez components(0 = OK, 1 = clipped or questionable)

[NO LIST] Data Quality for Bx components(0 = OK, 1 = clipped or questionable)

[NO LIST] Data Quality for By components(0 = OK, 1 = clipped or questionable)

[NO LIST] Data Quality for Bz components(0 = OK, 1 = clipped or questionable)


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