During the development of the PharmaSat spacecraft, two identical flight units were built and brought to the launch site, with the FLT-2 unit being the one ultimately launched as "PharmaSat". The FLT-1 unit sat in storage, and was later put to use as a NASAAmes Research Center Mission of Opportunity (MoO) flight, selected for funding under the Stand Alone Missions of Opportunity program. Originally named "PharmaSat-ECAM",[7] EcAMSat was developed from both legacy hardware and software from the PharmaSat mission.
EcAMSat was operated by Santa Clara University's Robotic Systems Lab in Santa Clara, California. After deployment, the first amateur radio beacon packets were received by amateur radio operator JA0CAW on 20 November 2017,[1] and Santa Clara University closed the S-Band radio link for the first time on 21 November 2017.
EcAMSat transmitted an AX.25 beacon packet once every 5 seconds at 437.100 megahertz.[8]
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).