PVC/KASACR/M1 - Improperly collected PPI data removed from archive

During this time period some PPI scanning occurred while the antenna was at vertical 
incidence.  The antenna elevation was seemingly 'stuck' at 90 degress while the antenna spun 
in azimuth.  The resulting data were of no value and have been removed from the archive.

• time_in_seconds_since_volume_start(time)
• Nominal radar antenna gain, v channel(radar_antenna_gain_v)
• -180.0 - +180.0(alt)
• Index for the calibration that applies to each ray(r_calib_index)
• Time index of last ray in sweep, 0-based(sweep_end_ray_index)
• Radar constant, vertical cross-polar channel 2(r_calib_radar_constant_v)
• North Latitude(lat)
• Index of first ray in sweep, 0-based(sweep_start_ray_index)
• Radar constant, horizontal copolar channel 1(r_calib_radar_constant_h)
• base time in epoch(base_time)
• pulse_repetition_frequency(prt)
• Unambiguous range(unambiguous_range)
• reflectivity(reflectivity)
• Copol to cross-polar correlation coefficient (also known as rhocx)(co_to_crosspol_correlation_coeff)
• Noise floor power for horizontal copolar channel1(r_calib_noise_hc)
• Sky noise, cross-polarization(sky_noise_xpol)
• ray_target_fixed_angle(fixed_angle)
• antenna_is_in_transition_between_sweeps(antenna_transition)
• altitude(altitude)
• Pulse width for this calibration(r_calib_pulse_width)
• Sky power, copolar(sky_power_copol)
• Doppler spectrum width (second moment of the doppler spectrum)(spectral_width)
• transmit_pulse_mode(prt_mode)
• Scan mode for sweep(sweep_mode)
• Time corresponding to last radial in file(time_coverage_end)
• Receiver gain for vertical cross-polar channel 2(r_calib_receiver_gain_vx)
• type_of_instrument(instrument_type)
• Sky noise, copolar(sky_noise_copol)
• Sky power, cross-polar(sky_power_xpol)
• altitude_above_ground_level(altitude_agl)
• East longitude(longitude)
• Follow mode(follow_mode)
• Nominal radar antenna gain, h channel(radar_antenna_gain_h)
• platform_type(platform_type)
• Distance to the center of the corresponding range bin(range)
• Number of samples used to compute moments(n_samples)
• data_volume_start_time_utc(time_coverage_start)
• Noise power in noise source region for vertical cross-polar channel(r_calib_noise_source_power_v)
• half_power_radar_beam_width_h_channel(radar_beam_width_h)
• Time offset from base_time(time_offset)
• Sweep number, zero-based count(sweep_number)
• Noise power in noise source region for horizontal copolar channel 1(r_calib_noise_source_power_h)
• Signal-to-noise-ratio(snr)
• Azimuth of Radar Ray(azimuth)
• radiation_frequency(frequency)
• radar_calibration_two_way_radome_loss_h_channel(r_calib_two_way_radome_loss_h)
• Cross-polar propagation phase shift(cross_polar_differential_phase)
• Primary axis of rotation(primary_axis)
• Pulse width(pulse_width)
• North latitude(latitude)
• Transmit power(r_calib_xmit_power_h)
• data_volume_index_number(volume_number)
• Polarization mode(polarization_mode)
• Noise flor for vertical cross-polar channel 2(r_calib_noise_vx)
• Linear depolarization ratio(linear_depolarization_ratio)
• Unambiguous Doppler velocity(nyquist_velocity)
• calibrated_radar_receiver_gain_v_co_polar_channel(r_calib_receiver_gain_hc)
• Radar measured transmit power, h channel(radar_measured_transmit_power_h)
• Mean doppler velocity(mean_doppler_velocity)
• Time of the calibration that applies to each ray(r_calib_time)
• Scan rate, positive for clockwise or increasing elevation(scan_rate)
• Radar beam width, vertical channel(radar_beam_width_v)
• lon(lon)
• Beam Elevation Angle(elevation)