OPS 3743
| Launched | 22 April 1964 | 
| Flight ended | 28 April 1964 | 
| Status | Decayed | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 786 | 
| COSPAR ID | 1964-020A | 
| Observing | 
OPS 3743
| Launched | 22 April 1964 | 
| Flight ended | 28 April 1964 | 
| Status | Decayed | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 786 | 
| COSPAR ID | 1964-020A | 
| Observing |