Characterizing a CCD detector for astronomical purposes: OAUNI Project
Antonio Pereyra (1), Maria I. Zevallos (2, 3), Jose Ricra (2),, Julio C. Tello (2) ((1) Instituto Geofisico del Peru, Area Astronomia, Lima,, Peru (2) Grupo Astronomia, Facultas de Ciencias, Univ. Nacional de Ingenieria, - UNI, Lima
TL;DR
This paper characterizes the CCD detector of the UNI astronomical observatory, confirming its high linearity, gain, and low noise, demonstrating its suitability for precise astronomical measurements.
Contribution
It provides detailed measurements of the CCD's linearity, gain, and noise, validating its performance for astronomical observations.
Findings
Linearity R2 = 99.99%
Gain = 1.65 e-/ADU
Readout noise = 12.2 e-
Abstract
This work verifies the instrumental characteristics of the CCD detector which is part of the UNI astronomical observatory. We measured the linearity of the CCD detector of the SBIG STXL6303E camera, along with the associated gain and readout noise. The linear response to the incident light of the detector is extremely linear (R2 =99.99%), its effective gain is 1.65 +/- 0.01 e-/ADU and its readout noise is 12.2 e-. These values are in agreement with the manufacturer. We confirm that this detector is extremely precise to make measurements for astronomical purposes.
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Taxonomy
TopicsCCD and CMOS Imaging Sensors · Infrared Target Detection Methodologies · Image Processing Techniques and Applications