### 99/01/01
   Position error of antenna was caused
   due to an incorrect clock or calender in our system.
   The error was found in N11-13, E11-13 and  W11-13 antennas.

### 99/01/15
   Due to snowfall, data quality was bad during the following times.
       Jan. 15, 03:30 UT - 06:15 UT.

### 99/01/16
   Due to snowfall, data quality was bad during the following times.
       Jan. 15, 08:00 UT - Jan.16, 01:10 UT.

### 99/01/24
no data were obtained due to a machine trouble