<prompt> Rangarira ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinoita ndima yacho: Passage: The orbiter entered Venus orbit on October 23, 1975. Its mission was to serve as a communications relay for the lander and to explore cloud layers and atmospheric parameters with several instruments and experiments: Question: What was its mission?  <response>: kuti ashande sechinhu chokukurukurirana nokuda kwomuchina wokumhara uye kuti aongorore matanda emakore nemiganhu yemhepo ine zvishandiso zvinoverengeka uye kuedza 