### 93/09/15
The front end receiver of E18 was down or unstable all day. 

### 93/09/16
The front end receiver of E18 was down or unstable all day.

### 93/09/17
The front end receiver of E18 was down or unstable until 10:19. 

### 93/09/22
The front end receiver of E18 was down all day. 

### 93/09/23
E18 was not used for observation. 

### 93/09/24
E18 was not used for observation.

### 93/09/25
E18 was not used for observation.

### 93/09/26
E18 was not used for observation.

### 93/09/27
E18 was not used for observation.