Hylaty: Instrument description:
- Two horizontal antennas: ns, ew (i.e. BX, BY);
Search coil;
- Sampling rate: ~176 Hz.
- Sensitivity (Note change in Sept/2005 !):
- before 12/Sept/2005: 56.70 (instrument unit)/pT,
- after 12/Sept/2005: 38.15 (instrument unit)/pT.
- Spectral characteristics:
- noise level of the antenna: ~0.05 pT/(Hz)^0.5, at 1.0 Hz,
- flat between 1.0 and 55.0 Hz,
- ~1/f between 0.03 and 1.0 Hz
PC1 data/plot description:
- Plots available (see data availability map).
- FFT:
- Length=2^14 samples,
- time step=2^14 samples (i.e. 1 spectrum in ~93.3 sec.),
- Hann windowed.
- Power spectrum densities ...
(units of [(B^2)/f*f^2], Log10 scale, where B is magnetic field in instrument units, f is frequency in Hz):
- Total (== horizontal),
- Left-hand polarized (and linearity* &le 0.95),
- Right-hand polarized (and linearity* &le 0.95),
- ns (== BX),
- ew(== BY).
- ... and *degree of linearity: Lin=1-b/a (0|1 == full circular|linear polarization),
where: a,b are long- and short axes of polarization ellipse.
PC1_QuickLook