Mars mission duration

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Conjunction and opposition mission trajectory.
Conjunction and opposition mission trajectory.

Comparison conjunction and opposite mission type:

Mission type [1] Total mission duration, days Earth-Mars trip, days Time spent at destination Mars-Earth trip, days Total ∆V, km/s Trans-Mars Injection, km/s Mars Orbital Insertion, km/s Trans-Earth Injection, km/s
Conjuction 10005 198 558 197 2.81 0.50 1.25 1.06
Opposition 560 177 40 342 5.69 0.61 1.75 3.33
Conjunction and opposition Mars mission duration.
Conjunction and opposition Mars mission duration comparison.

Examples of the near future missions opportunities

Mars short-stay (opposition) mission:

Departure Date [2] Mission Duration (years) Time spent at destination Injection (C3/∆v), km/s Post-escape ∆v, km/s Destination Aerocapture (∆V/Inertial), km/s Earth Aerocapture (∆V/Inertial), km/s
19-Jul-2020 1.50 1 month 14.5/3.87 2.80 1.41/6.2 0.86/11.8
22-Oct-2021 1.39 1 month 14.4/3.86 2.80 3.48/8.2 0.47/11.4
14-Sep-2023 1.64 1 month 25.7/4.34 0.99 3.29/8.0 0.48/11.4

Mars long-stay (conjunction) mission:

Departure Date [2] Mission Duration (years) Time spent at destination Injection (C3/∆v), km/s Post-escape ∆v, km/s Destination Aerocapture (∆V/Inertial), km/s Earth Aerocapture (∆V/Inertial), km/s
4-Aug-2020 2.53 1.40 years 15.7/3.92 1.45 0.70/5.5 0.80/11.7
15-Sep-2022 2.63 0.85 years 14.4/3.86 0.94 0.88/5.6 0.50/11.4
14-Oct-2024 2.62 0.87 years 12.1/3.76 0.82 0.73/5.5 0.58/11.5

References

  1. Bryan Mattfeld, Chel Stromgren - Trades Between Opposition and Conjunction Class Trajectories for Early Human Mission to Mars in AIAA Space 2014; 4-7 Aug. 2014; San Diego, California
  2. 2.0 2.1 Cyrus Foster, Matthew Daniels - Mission Opportunities for Human Exploration of Nearby Planetary Bodies in AIAA SPACE 2010 Conference & Exposition, 30 August - 2 September 2010, Anaheim, California ISBN AIAA 2010-8609