### 00/05/13
    No data available whole day due to the computer trouble.
### 00/05/14
    No data available whole day due to the computer trouble.
### 00/05/15
    E27 and E28 antennas were not used for obsevations.
    May 15 02:02 -  May 15 03:05
### 00/05/16
    E27 and E28 antennas were not used for obsevations.
    May 16 02:00 -  May 16 03:03
### 00/05/16
    E28 antennas were not used for obsevations.
    May 16 04:20 -  end of observation
### 00/05/19
    E27 and E28 antennas were not used for obsevations.
    May 19 02:33 -  May 19 03:11
### 00/05/20
    N25 antenna failed tracking many times during the following time intervals:
    May 20 02:00 - May 20 03:33  3 times
### 00/05/21
    N25 antenna failed tracking many times during the following time intervals:
    May 21 01:53 - May 21 06:17  16 times
### 00/05/22
    E27 and E28 antennas were not used for obsevations.
    May 22 02:05 -  May 22 02:50