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Neural Network Applied to Telescope Pointing Inaccuracy Model

, , ,  und   
06. Juli 2024

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

Figure 2.

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

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

Layer type Number of neurons Number of parameters Activation
InputLayer 4 0 None
Dense 64 320 tanh
Dense 64 4160 relu
Dense 64 4160 relu
Dense 64 4160 relu
Dense 32 2080 relu
Dense 32 1056 relu
Dense 32 1056 relu
Dense 32 1056 relu
Dense 16 528 relu
Dense 16 272 relu
Dense 16 272 relu
Dense 16 272 relu
Dense 8 136 relu
Dense 8 72 relu
Dense 8 72 relu
Dense 8 72 relu
Dense 2 18 sigmoid
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