Duplicit meta.csv file is sometime created.

[kaklik]

The radio-observer occasionally creates a second meta.csv file. After that the file list looks like that:

20170804000000_HFN-R1_freq.csv
20170804000000_HFN-R1_meta.csv
20170804010000_HFN-R1_freq.csv
20170804010000_HFN-R1_meta.csv
20170804020000_HFN-R1_freq.csv
20170804020000_HFN-R1_meta.csv
20170804025608_HFN-R1_meta.csv
20170804030000_HFN-R1_freq.csv
20170804030000_HFN-R1_meta.csv
20170804040000_HFN-R1_freq.csv
20170804040000_HFN-R1_meta.csv
20170804050000_HFN-R1_freq.csv
20170804050000_HFN-R1_meta.csv
20170804060000_HFN-R1_freq.csv
20170804060000_HFN-R1_meta.csv
20170804070000_HFN-R1_freq.csv
20170804070000_HFN-R1_meta.csv

The second 20170804025608_HFN-R1_meta.csv created contains almost no data. Its contents look like that:

# file name; noise; peak f.; mag.; duration
20170804025509436_HFN-R1_snap.fits;2.49592;26535.6;3.413;0

Unfornutanelly the snapshot 20170804025509436_HFN-R1_snap.fits is not contained in previous original file 20170804020000_HFN-R1_meta.csv

This behavior could be related to station sensitivity increase, because the problem was observed first after receiver upgrade, resulting in increased meteor count detected per one snapshot interval.