NSA/XSAPR/C1 - RHI Sectors missing

Some RHI's during this period had sectors of data missing.  The rest of the data can be 
used.

• Differential reflectivity, clutter filtered(diff_reflectivity)
• Attenuation corrected differential reflectivity(diff_reflectivity_corr)
• Specific differential phase(diff_phase)
• Lag-0 co-polar correlation coefficient, clutter filtered(copol_coeff)
• Mean doppler velocity(mean_doppler_velocity)
• Signal quality index(sig_qual_index)
• Unfiltered reflectivity(reflectivity_unf)
• Attenuation corrected reflectivity(reflectivity_corr)
• reflectivity(reflectivity)
• Differential propagation phase shift(dp_phase_shift)
• Doppler spectral width, clutter filtered(doppler_spectral_width)