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Figure 2 File Edit View Insert Tools Desktop Window Help ×104 3 2 Z (km) 0 Τ sgp4 ☐ ☑ 4 2 0 -2 x104 -2 -4 -4 X (km) -2 -3> 4 ×104 2 0 Y (km) Figure 1 File Edit View Insert Tools Desktop Window Help Z (km) ×104 3 2 -2 -3> 5 x104 Numerical Propagator ☐ 4 0 2 0 -2 X104 Y (km) -4 -5 -6 X (km) Х

Figure 2 File Edit View Insert Tools Desktop Window Help ×104 3 2 Z (km) 0 Τ sgp4 ☐ ☑ 4 2 0 -2 x104 -2 -4 -4 X (km) -2 -3> 4 ×104 2 0 Y (km) Figure 1 File Edit View Insert Tools Desktop Window Help Z (km) ×104 3 2 -2 -3> 5 x104 Numerical Propagator ☐ 4 0 2 0 -2 X104 Y (km) -4 -5 -6 X (km) Х

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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I was trying to plot an orbit in MATLAB using my numerical propagator and a sgp4 propagator that i copied from MATLAB website. The plot of the two different propagators are shown in the image. I was plotting a GEO orbit. The numerical propagator took into account drag, solar radiation pressure, and J2 perturbations. 

I am wondering if the orbits are correct. Because the sgp4 orbit is perfectly circular while my numerical propagator orbit is more spiral like. Does sgp4 also take in account perturbations? Or, is it more of an ideal orbit?

Figure 2 File Edit View Insert Tools Desktop Window Help ×104 3 2 Z (km) 0 Τ sgp4 ☐ ☑ 4 2 0 -2 x104 -2 -4 -4 X (km) -2 -3> 4 ×104 2 0 Y (km)
Transcribed Image Text:Figure 2 File Edit View Insert Tools Desktop Window Help ×104 3 2 Z (km) 0 Τ sgp4 ☐ ☑ 4 2 0 -2 x104 -2 -4 -4 X (km) -2 -3> 4 ×104 2 0 Y (km)
Figure 1 File Edit View Insert Tools Desktop Window Help Z (km) ×104 3 2 -2 -3> 5 x104 Numerical Propagator ☐ 4 0 2 0 -2 X104 Y (km) -4 -5 -6 X (km) Х
Transcribed Image Text:Figure 1 File Edit View Insert Tools Desktop Window Help Z (km) ×104 3 2 -2 -3> 5 x104 Numerical Propagator ☐ 4 0 2 0 -2 X104 Y (km) -4 -5 -6 X (km) Х
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