Plasma Wind Tunnel Investigation of European Ablators in Nitrogen/Methane Using Emission Spectroscopy

Table 5

Rotational and vibrational temperatures obtained using PARADE for C₂ at 0.3 MW/m² at 3 mm and 5 mm axial distance to probe surface.

Distance to probe surface	C2 rotational temperatures/K	C2 vibrational temperatures/K
3 mm	4500–7000	5500
5 mm	5000	6000