SGP/ACSM/C1 - Data not available and unrecoverable

There are no data for this time period.  The ionization filament burned out.  The mentor 
switched to a backup filament on 2/17 and the data stream was good after it was adjusted 
and monitored on 2/19.

• -180.0 - +180.0(alt)
• Mass to charge ratios of ion fragments(amus)
• Mass concentration of ammonium, ambient aerosol in air(ammonium)
• time_in_seconds_since_volume_start(time)
• Mass concentration of sulfate, ambient aerosol in air.(sulfate)
• Mass concentration of nitrate, ambient aerosol in air(nitrate)
• North Latitude(lat)
• Mass concentration of total organics, ambient aerosol in air(total_organics)
• Time offset from base_time(time_offset)
• lon(lon)
• Mass concentration of chloride, ambient aerosol in air.(chloride)
• Organic mass spectral matrix(org_mx)
• base time in epoch(base_time)
• Organic mass spectral error matrix(org_mx_err)

• Mass concentration of total organics, ambient aerosol in air(total_organics)
• time_in_seconds_since_volume_start(time)
• Mass concentration of chloride, ambient aerosol in air.(chloride)
• Mass concentration of sulfate, ambient aerosol in air.(sulfate)
• lon(lon)
• Mass concentration of nitrate, ambient aerosol in air(nitrate)
• base time in epoch(base_time)
• Time offset from base_time(time_offset)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Mass concentration of ammonium, ambient aerosol in air(ammonium)

• lon(lon)
• Organic mass spectral matrix(org_mx)
• Mass concentration of sulfate, ambient aerosol in air.(sulfate)
• Mass concentration of nitrate, ambient aerosol in air(nitrate)
• Mass concentration of ammonium, ambient aerosol in air(ammonium)
• Time offset from base_time(time_offset)
• Mass concentration of total organics, ambient aerosol in air(total_organics)
• time_in_seconds_since_volume_start(time)
• -180.0 - +180.0(alt)
• Mass to charge ratios of ion fragments(amus)
• North Latitude(lat)
• base time in epoch(base_time)
• Mass concentration of chloride, ambient aerosol in air.(chloride)
• Organic mass spectral error matrix(org_mx_err)