ScalarDensityJacchiaRoberts Properties

Gets the value for the time lag used when modeling when to apply the values of AverageSolarRadioFlux to the atmosphere. Jacchia models use a time lag of one day.

Gets or sets the central body of the atmosphere described by the density model. This is set to the Earth by default.

Gets the dimension of the values produced by the object. For example, Vectors would have a dimension of three, and Scalars of one. A PartialDerivativesEvaluator created by this type will have a "RowDimension" equal to this property, and a "ColumnDimension equal to the summation of the dimensions of the independent variables that this object is dependent on.

Gets the value for the time lag used when modeling when to apply the values of GeomagneticFlux to the atmosphere. Jacchia models use a time lag of 24120.0 seconds.

Gets a value indicating whether this object is frozen. A frozen object cannot be modified and an ObjectFrozenException will be thrown if an attempt is made to do so.

Gets the lower bound of the height (in meters above the ellipsoid) for which this density model is valid. Jacchia-Roberts is only valid at and above 90,000 meters. This model will still produce results at lower altitudes, but should not be considered accurate.

Gets or sets the solar and magnetic flux information.

Gets the value for the time lag used when modeling when to apply the values of SolarRadioFlux to the atmosphere. Jacchia models use a time lag of one day.

Gets or sets the target point describing the time-varying position at which density is to be calculated.

Gets or sets the upper bound of the height (in meters above the ellipsoid) above which this density model will return a value of zero. The default value is 2500000 meters.

Gets or sets a value indicating whether to use approximate altitude when computing the height above the surface of the central body. Using approximate height will generally speed up the calculations while only producing a small discrepancy in the density. By default, this value is true.

Gets or sets the vector to the sun to use for modeling the effects of solar radiation on the atmosphere. By default, this is set to represent the apparent displacement from the Earth to the Sun based on light time delay and aberration from the relative motion of the celestial bodies. Setting this to use the true displacement will be slightly less accurate but take less time to compute. However, not all density models will use the Sun's position.