1. A computer-implemented method of determining an elevation of a tracked object for creating a simulation, the method comprising: (a) identifying, using a first computer system, a set of latitude and longitude coordinates of the tracked object at a fixed reference point at a certain point in time, wherein the first computer system includes a computer-readable storage device and a processor; (b) identifying, using the first computer system, a reference elevation value corresponding to the set of latitude and longitude coordinates at the certain point in time wherein the tracked object is known to be at the reference elevation at the certain point in time; (c) measuring a first apparent altitude of the tracked object at the fixed reference point at the certain point in time; (d) comparing, using the first computer system, the first apparent altitude with the reference elevation value; (e) based at least in part upon a comparison of the first apparent altitude with the reference elevation value, determining, using the first computer system, a correction factor that can be applied to the first. measured apparent altitude to adjust the first measured apparent altitude to be consistent with the reference elevation value; (f) measuring one or more additional apparent altitudes of the tracked object over a duration of time to obtain a set of measured altitude values; (g) storing, on the computer-readable storage medium, the set of measured altitude values; (h) adjusting, using the first computer system, one or more of the measured altitude values, based at least in part on the correction factor, to obtain a set of adjusted altitude values; and (i) storing, on the computer-readable storage medium, the set of adjusted altitude values; and (j) generating, at a second computer system, the simulation of a flight of the tracked object, based at least in part on the stored set of adjusted altitude values.