Euclid preparation - LXXVII. The NISP spectroscopy channel: Ground performance and calibration

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Table A.6

Values of the RGS180–4 calibration parameters, a_ij, that have to be used in Eq. (3) to model the large-scale variation of the coefficient $C_{i}^{κ}$ $Mathematical equation: $C_i^\kappa $$ of Eq. (2).

Coef	$C_{0}^{y}$	$C_{1}^{y}$	$C_{2}^{y}$	$C_{0}^{z}$	$C_{1}^{z}$	$C_{2}^{z}$	$C_{3}^{z}$
a₀₀	−1.4442 × 10⁰	−3.3737 × 10⁻¹	2.0877 × 10⁻⁴	−1.9701 × 10¹	−4.6132 × 10⁰	−4.2116 × 10⁻³	−1.1804 × 10⁻³
a₀₁	−2.0628 × 10⁻²	−3.7792 × 10⁻³	−	1.1624 × 10⁻²	1.8410 × 10⁻²	1.1478 × 10⁻³	−1.5622 × 10⁻⁴
a₀₂	−5.3253 × 10⁻³	−1.1466 × 10⁻³	−	−1.6132 × 10⁻¹	−3.7370 × 10⁻²	−	−
a₀₃	−	−	−	5.5879 × 10⁻³	−	−	−
a₁₀	5.8618 × 10⁻³	7.2148 × 10⁻³	−1.3234 × 10⁻⁴	−1.9315 × 10⁻¹	−4.4419 × 10⁻²	2.1423 × 10⁻⁴	−5.3528 × 10⁻⁴
a₁₁	−2.0715 × 10⁻¹	−4.7939 × 10⁻²	−	−1.2133 × 10⁻²	−2.5801 × 10⁻³	−1.8255 × 10⁻⁴	6.2993 × 10⁻⁴
a₁₂	1.9992 × 10⁻¹	4.0851 × 10⁻²	−	−4.4835 × 10⁻³	4.6811 × 10⁻²	−	−
a₁₃	−	−	−	2.0969 × 10⁻¹	−	−	−
a₂₀	−1.0219 × 10⁻²	−2.3980 × 10⁻³	−	−5.0410 × 10⁻²	−1.3488 × 10⁻²	−	−
a₂₁	2.4316 × 10⁻³	3.9580 × 10⁻⁵	−	5.5960 × 10⁻⁵	7.4457 × 10⁻⁴	−	−
a₂₂	6.5568 × 10⁻³	2.5569 × 10⁻³	−	−1.2132 × 10⁻³	1.1499 × 10⁻²	−	−
a₂₃	−	−	−	5.7432 × 10⁻²	−	−	−
a₃₀	−	−	−	−9.1911 × 10⁻⁴	−	−	−
a₃₁	−	−	−	2.0260 × 10⁻³	−	−	−
a₃₂	−	−	−	−4.4455 × 10⁻³	−	−	−
a₃₃	−	−	−	1.1781 × 10⁻³	−	−	−

Notes. Cells with ‘−’ indicate that we did not expend the Chebyshev expansion to that order level and corresponding a_ij coefficients were not computed.

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