function [h0, vb, burnStartTime] = burnStartTimeCalc(Tcurve, tb, M0, mdot, Mb)
Mavg = (M0 + Mb)/2;
g = -9.81;

A_tot = 0;

% Riemann Sum
for i = 2:length(Tcurve)
    if i > 1
        A = (Tcurve(i, 1) - Tcurve(i - 1, 1)) * Tcurve(i, 2);
    else
        A = Tcurve(i, 1) * Tcurve(i, 2);
    end
    A_tot = A_tot + A;
end

Tavg = A_tot / tb;
ueq = Tavg / mdot;
delta_ub = ueq * log(M0/Mb) + g*tb;
a_avg = (Tavg/Mavg) + g;

hf = ((delta_ub^2) / (2*-g));
hb = ((delta_ub^2) / (2*a_avg))

h0 = hf + hb + 1;
vb = delta_ub;
burnStartTime = vb / -g;