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\begin{document}

\title{Autonomous CE Mass-Spectra Examination (ACME) for the Ocean Worlds Life
Surveyor (OWLS)}



\author[1]{Steffen Mauceri}%
\author[1]{Jake Lee}%
\author[1]{Mark Wronkiewicz}%
\author[1]{Lukas Mandrake}%
\author[1]{Gary Doran}%
\author[1]{Jack Lightholder}%
\author[1]{Zuzana Cieslarova}%
\author[1]{Miranda Kok}%
\author[1]{M. Fernanda Mora}%
\author[1]{Aaron Craig Noell}%
\affil[1]{Jet Propulsion Laboratory}%


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  \date{June 17, 2024}


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\begin{abstract}
Ocean worlds such as Europa and Enceladus are high priority targets in
the search for past or extant life beyond Earth. Evidence of life may be
preserved in samples of surface ice by processes such as deposition from
active plumes or thermal convection. Terrestrial life produces unique
distributions of organic molecules that translate into recognizable
biosignatures. Identification and quantification of these organic
compounds can be achieved by separation science such as capillary
electrophoresis coupled to mass spectrometry (CE-MS). However, the data
generated by such an instrument can be multiple orders of magnitude
larger than what can be transmitted back to Earth during an ocean worlds
mission. This requires onboard science data analysis capabilities that
summarize and prioritize CE-MS observations with limited compute
resources.\\
In response, the Autonomous Capillary Electrophoresis Mass-spectra
Examination (ACME) onboard science autonomy system was created for
application to the Ocean Worlds Life Surveyor (OWLS) instrument suite.
ACME is able to compress raw mass spectra by two to three orders of
magnitude while preserving most of its scientifically relevant
information content. This summarization is achieved by the extraction of
raw data surrounding autonomously identified ion peaks and the detection
and parameterization of unique background regions. Prioritization of the
summarized observations is then enabled by providing estimates of
scientific utility, the uniqueness of an observation relative to
previous observations, and the presence of key target compound
signatures.%
\end{abstract}%



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