\begin{tabular}
Degree of Freedom&forecast time&Length of forecast time\\
&months since 1960-01-01&days\\
&Oct 2019 - Jan 2020&123.0\\
&21 Oct 2020 - 20 Feb 2021&120.0\\
&11 Nov 2021 - 10 Mar 2022&120.0\\
&Dec 2022 - Mar 2023&121.0\\
&21 Dec 2023 - 20 Apr 2024&121.0\\
&11 Jan 2025 - 10 May 2025&120.0\\
&Feb-May 2026&120.0\\
\end{tabular}