The density scale height H is determined at low as well as high altitude using the equation of change rate of the orbital period of Dash 2 satellite. The computed values of H are compared with these statistical values obtained by Jacchia-Jacchia´s values of H are given up to altitude 2500 km. We extend Jacchia´s values of H up to altitude 3110.7 km since our values of H are computed from altitude 316.7 km to altitude 3110.7 km. Finally a comparison between our values and Jacciha´s values of H at diffenent altitudes and different MJD are given. For higher altitudes, out values of H are much greater than Jadchia´s values while at smaller altitudes, our values are approximately the same as Jacchia´s values.