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We report results from the preliminary trials of Colibri, a dedicatedfast-photometry array for the detection of small Kuiper belt objects throughserendipitous stellar occultations. Colibri's novel data processing pipelineanalyzed 4000 star hours with two overlapping-field EMCCD cameras, detecting noKuiper belt objects and one false positive occultation event in a high eclipticlatitude field. No occultations would be expected at these latitudes, allowingthese results to provide a control sample for the upcoming main Colibricampaign. The empirical false positive rate found by the processing pipeline isconsistent with the 0.002% simulation-determined false positive rate. We alsodescribe Colibri's software design, kernel sets for modeling stellaroccultations, and method for retrieving occultation parameters from noisydiffraction curves. Colibri's main campaign will begin in mid-2018, operatingat a 40 Hz sampling rate.

Pipeline for the Detection of Serendipitous Stellar Occultations by Kuiper Belt Objects with the Colibri Fast-Photometry Array