| Navy | The US Navy |
| Type | Submarine tender |
| Class | [No specific class] |
| Pennant | AS 9 |
| Built by | New York Shipbuilding Corp. (Camden, New Jersey, U.S.A.) |
| Ordered | |
| Laid down | 7 Mar 1918 |
| Launched | 19 Dec 1918 |
| Commissioned | 24 Jan 1922 |
| Lost | 10 Apr 1942 |
| History | Displacement: 5975 BRT Acquired by the USN for conversion to a submarine tender on 22 November 1921 |
Commands listed for USS Canopus (AS 9)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Cdr. Earl Leroy Sackett, USN | < Dec 41 | 10 Apr 1942 |
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