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k-means aperture optimization applied to Kepler K2 time series photometry of Titan

Abstract:

Motivated by the Kepler K2 time series of Titan, we present an aperture optimization technique for extracting photometry of saturated moving targets with high temporally and spatially varying backgrounds. Our approach uses k-means clustering to identify interleaved families of images with similar point-spread function and saturation properties, optimizes apertures for each family independently, then merges the time series through a normalization procedure. By applying k-means aperture optimiz...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1538-3873/ab28ad

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atmos Ocean & Planet Physics
Oxford college:
St Edmund Hall
Role:
Author
ORCID:
0000-0003-1869-4947
Publisher:
IOP Publishing
Journal:
Publications of the Astronomical Society of the Pacific More from this journal
Volume:
131
Issue:
1002
Article number:
084505
Publication date:
2019-07-15
Acceptance date:
2019-06-10
DOI:
EISSN:
1538-3873
ISSN:
0004-6280
Language:
English
Keywords:
Pubs id:
1132333
Local pid:
pubs:1132333
Deposit date:
2021-08-05

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