Canopus 2 was a single stage,sub-orbitalsounding rocket that was built byArgentina.[1]

A first version,Canopus 1, was tested between 1966 and 1967.[1] Canopus 1 was also used as the first stage of theRigel sounding rocket between 1969 and 1973.[2]
Canopus 1 was launched two times fromCELPA Chamical:[1][3]
| Date | Mission Type | Nation | Apogee |
|---|---|---|---|
| November 1966 | Test mission | Argentina | 40 km |
| July 1967 | Test mission | Argentina | 40 km |

Canopus 2 was introduced in 1969.[1] There were a total of three launches during 1969 from CELPA Chamical andCELPA Mar Chiquita with no failures.[1] Another launch happened in 1971 from CELPA Chamical.[1] The launch apogee was 150 kilometres in altitude. The vehicle had a length of 4 metres and launch mass of 300 kilograms. It was capable of lifting a 50 kg payload to an altitude of 100 km,[4] and on some flights had an apogee of 150 kilometres.
Canopus 2 was also used for both stages ofCastor A and the second stage ofTauro sounding rocket.[5][6]
Canopus 2 was launched four times:[1][7][3]
| Date | Mission Type | Nation | Apogee |
|---|---|---|---|
| 1969 April 16 | Test mission | Argentina | 150 km (90 mi) |
| 1969 October 23 | Test mission | Argentina | 150 km (90 mi) |
| 1969 December 23 | Test / biology mission | Argentina | 150 km (90 mi) |
| 1971 November 5 | Argentina |
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