MEO

Numerical Atlas: MEO survey

Dynamical model:

  • Initial grid
  • Central body ⇒ Earth with gravity field up to degree and order 2 (i.e., J 2,0 , J 2,2 )
  • Perturbing bodies ⇒ Moon & Sun
  • Solar Radiation Pressure (SRP): cannonball model

Method:

  • full non-averaged equations of motion
  • SWIFT-SAT symplectic integrator

Initial epochs:

  • epoch 2018: MJD 58475.24 ( 22.74/12/2018 )
  • epoch 2020: MJD 59021.78 ( 21.28/06/2020 )

t max = 120yr

Initial grid

LEO-to-GEO MEO-GNSS
a(aGEO) 0.150 – 1.050 0.600 – 0.710
Δa 0.0050 0.0025
e 0 – 0.09 0 – 0.88
Δe 0.015 0.02
i(º) 0 – 120 0 – 90
Δi 2 2
ΔΩ(º) {0, 90, 180, 270}
Δω(º) {0, 90, 180, 270}
CR(A/m)(m²/Kg) {0.015, 1}

Eccentricity indicator:

De=|emaxe0||ece0|

De → 1 means initial eccentricity, e0, grows to a maximum value, emax, that is ≥ critical value for reentry, ec


Atlas MEO

Please, select the options and click on the image to open the viewer

Plots in initial ( a, e ) space, w.r.t. orientation angles Ω, ω, and initial fixed inclination

i0

CRA/m



Contacts

Department of Physics, Aristotle University of Thessaloniki, Greece

  • Kleomenis Tsiganis tsiganis@auth.gr
  • Despoina K. Skoulidou dskoulid@physics.auth.gr
  • Aaron J. Rosengren ajrosengren@gmail.com
  • George Voyatzis voyatzis@auth.gr