USA 189
| Launched | 20 June 2006 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Air Force Eastern Test Range, Florida, USA | 
| Owner | United States | 
| NORAD ID | 29242 | 
| COSPAR ID | 2006-024C | 
| Alternative names | MITEX UPPER STAGE | 
| Observing |