human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Date and time( UTC ), Type, Serial no., Launch site, Payload, Type of payload, Orbit, Outcome
###Question: When was the payload of Commercial Communications Satellite amc16?
gpt
SELECT Date and time( UTC ) FROM table WHERE Type of payload = commercial communications satellite AND Payload = amc16