AtmosphericDensityModel#

class ansys.stk.core.stkobjects.AtmosphericDensityModel#

IntEnum

Overview#

STANDARD_ATMOSPHERE_MODEL_1976

1976 Standard Atmosphere: look-up model based on the satellite’s altitude, with a valid range of 86km - 1000 km.

CIRA72

CIRA 1972: empirical model of atmospheric temperature and densities as recommended by the Committee on Space Research (COSPAR). Lower altitude boundary is 90 km.

EXPONENTIAL_MODEL

Do not use this enumeration, as it is deprecated. Exponential Model: uses equation calculating atmospheric density on basis of a specified altitude, reference density, reference altitude and scale altitude.

HARRIS_PRIESTER

Harris-Priester: takes into account a 10.7 cm solar flux level and diurnal bulge. Uses density tables. Valid range of 0-1000 km.

JACCHIA_ROBERTS

Jacchia-Roberts: similar to Jacchia 1971 (below) but uses analytical methods to improve performance. Lower altitude boundary is 90 km.

JACCHIA60

Jacchia 1960: outdated atmospheric model provided for making comparisons with other software. Lower altitude boundary is 0 km.

JACCHIA70

Jacchia 1970: computes atmospheric density based on the composition of the atmosphere, which depends on altitude as well as seasonal variation. Valid range is 100-2500 km.

JACCHIA71

Jacchia 1971: similar to Jacchia 1970 (above), with improved treatment of certain solar effects.

MSIS00

NRLMSISE 2000: finds the total density by accounting for the contribution of N, N2, O, O2, He, Ar and H. Includes anomalous oxygen. 2000 version, valid range of 0-1000 km.

MSIS86

MSIS 1986: finds the total density by accounting for the contribution of N2, O, O2, He, Ar and H. 1986 version, valid range of 90-1000 km.

MSIS90

MSISE 1990: finds the total density by accounting for the contribution of N2, O, O2, He, Ar and H. 1990 version, valid range of 0-1000 km.

UNKNOWN

Unsupported or unknown atmospheric density model.

USER_DEFINED

Do not use this enumeration, as it is deprecated. This option is no longer available for VehicleHPOPForceModelDrag. User-defined atmospheric density model.

DTM2012

DTM 2012: The Drag Temperature Model (DTM), 2012 version, is a semi-empirical model which computes the temperature, density, and composition of the thermosphere. Developed at CNES. Valid range of 120 - 1500 km.

DTM2020

DTM 2020: The Drag Temperature Model (DTM), 2020 version, is a semi-empirical model which computes the temperature, density, and composition of the thermosphere. Developed at CNES. Valid range of 120 - 1500 km.

Import detail#

from ansys.stk.core.stkobjects import AtmosphericDensityModel