
EnVision Example Trajectory
================================

VERSION:        3.0
CREATION_DATE:  2020/06/10
ORIGINATOR:     ESA/ESOC (P. Munoz)


CONTENT: Trajectory files in OEM (*.oem) and Spice Kernel (*.bsd) formats covering the full mission duration consistent to the latest mission baseline:
  
  - ESC_T4_2032_NorthVOI: launch into direct escape at -5.0 deg declination and Venus Orbit Insertion over the Northern hemisphere.


NOTES:

  - Trajectory data is consistent with JPL planetary ephemerides DE-432.
  
  - Aerobraking phase is not realistically modelled. Drag effect is emulated as several impulsive delta-Vs distributed throughout the aerobraking duration.
  
  - Science orbit time span (2035/06/15 - 2039/06/14) covering the nominal mission duration of 6 Venus cycles.
  
  - Venus gravity field expansion to 40x40 degree and order used for propagation of the science orbit.

