function plotHarmonicFit(Positions, TrappingPotential, TrapDepthsInKelvin, axis, popt, pcov)
    v = popt(1);
    dv = sqrt(pcov(1,1));
    happrox = harmonic_potential(Positions(axis, :), popt);
    
    figure('Position', [100, 100, 1200, 600])
    
    subplot(1,2,1)
    title('Fit to Potential')
    plot(Positions(axis, :), happrox, '-r', 'DisplayName', sprintf('\\nu = %.1f \\pm %.2f Hz', v, dv))
    hold on
    plot(Positions(axis, :), TrappingPotential(axis, :), 'ob', 'DisplayName', 'Gaussian Potential')
    xlabel('Distance (\mum)', 'FontSize', 12, 'FontWeight', 'bold')
    ylabel('Trap Potential (\muK)', 'FontSize', 12, 'FontWeight', 'bold')
    ylim([-TrapDepthsInKelvin(1), max(TrappingPotential(axis, :))])
    grid on
    legend('FontSize', 12, 'FontWeight', 'bold')

    subplot(1,2,2)
    title('Fit Residuals')
    plot(Positions(axis, :), TrappingPotential(axis, :) - happrox, 'ob')
    xlabel('Distance (\mum)', 'FontSize', 12, 'FontWeight', 'bold')
    ylabel('$U_{trap} - U_{Harmonic}$', 'Interpreter', 'latex', 'FontSize', 12, 'FontWeight', 'bold')
    xlim([-10, 10])
    ylim([-1e-2, 1e-2])
    grid on
    tight_layout()
    hold off
end