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Neural Network Applied to Telescope Pointing Inaccuracy Model Cover

Neural Network Applied to Telescope Pointing Inaccuracy Model

Open Access
|Jul 2024

Figures & Tables

Figure 1.

Raw source data for the model. Approximately 13,000 points are plotted in the horizon coordinate system. Normalized corrections are shown in different colors.

Table 1.

General structure of the TIM network, each row is a layer. Total number of trainable parameters is 19,762.

Layer typeNumber of neuronsNumber of parametersActivation
InputLayer40None
Dense64320tanh
Dense644160relu
Dense644160relu
Dense644160relu
Dense322080relu
Dense321056relu
Dense321056relu
Dense321056relu
Dense16528relu
Dense16272relu
Dense16272relu
Dense16272relu
Dense8136relu
Dense872relu
Dense872relu
Dense872relu
Dense218sigmoid
Figure 2.

Cost function (standard deviation) for corrections to azimuth (left) and altitude (right) depending on learning iteration number (epoch)

Figure 3.

Residual distribution of modeled and original corrections

DOI: https://doi.org/10.2478/arsa-2024-0004 | Journal eISSN: 2083-6104 | Journal ISSN: 1509-3859 (formerly 0208-841X)
Language: English
Page range: 55 - 63
Submitted on: Feb 7, 2024
Accepted on: Jun 17, 2024
Published on: Jul 6, 2024
Published by: Polish Academy of Sciences, Space Research Centre
In partnership with: Paradigm Publishing Services

© 2024 Vitaliy Zhaborovskyy, Myhailo Medvedsky, Vasyl Choliy, Victor Pap, Viachelsav Semenenko, published by Polish Academy of Sciences, Space Research Centre
This work is licensed under the Creative Commons Attribution 4.0 License.