Mars mission duration - Revision history

RichardWSmith: Added that opposition missions have a higher radiation burden.

2021-03-03T07:47:50Z

Added that opposition missions have a higher radiation burden.

Michel Lamontagne at 14:21, 13 November 2020

2020-11-13T14:21:35Z

Michel Lamontagne at 14:21, 13 November 2020

2020-11-13T14:21:06Z

Michel Lamontagne at 14:19, 13 November 2020

2020-11-13T14:19:55Z

Jburk at 21:00, 6 May 2019

2019-05-06T21:00:42Z

Denis nyrkov at 13:49, 1 May 2018

2018-05-01T13:49:20Z

Denis nyrkov at 07:16, 1 May 2018

2018-05-01T07:16:50Z

Denis nyrkov at 17:10, 25 February 2018

2018-02-25T17:10:31Z

Denis nyrkov at 07:56, 20 February 2018

2018-02-20T07:56:34Z

Denis nyrkov: Created page with "Mars short-stay (opposition-class) mission {| class="wikitable" |- ! Departure Date Cyrus Foster, Matthew Daniels - ''Mission Opportunities f..."

2018-02-20T05:15:05Z

Created page with "Mars short-stay (opposition-class) mission {| class="wikitable" |- ! Departure Date <ref name=Mission_opportunities> Cyrus Foster, Matthew Daniels - ''Mission Opportunities f..."

New page

Mars short-stay (opposition-class) mission

{| class="wikitable"
|-
! Departure Date <ref name=Mission_opportunities> Cyrus Foster, Matthew Daniels - ''Mission Opportunities for Human Exploration of Nearby Planetary Bodies.'' in AIA SPACE 2010 Conference & Exposition, 30 August - 2 September 2010, Anaheim, California ISBN AIAA 2010-8609</ref>!! 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-class) mission

{| class="wikitable"
|-
! Departure Date <ref name=Mission_opportunities> Cyrus Foster, Matthew Daniels - ''Mission Opportunities for Human Exploration of Nearby Planetary Bodies.'' in AIA SPACE 2010 Conference & Exposition, 30 August - 2 September 2010, Anaheim, California ISBN AIAA 2010-8609</ref>!! 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==
<references />

[[Category:Logistics]]

@@ Line 3: / Line 3: @@
 [[File:Conjunction_and_opposition_trajectory.jpg|thumb|center|1000x400px|alt=Conjunction and opposition mission trajectory.|Conjunction and opposition mission trajectory.]]
-[[Mission concepts|Manned missions]] to Mars split in two different types. They are named after astronomical names of the moments of departure of the ships from Mars: [[conjunction]] and opposition. Opposition type mission have less total time but more time spent travel in weightless conditions, conjunction mission have much more time spent in Mars surface. Сonjunction and opposite mission type examples:
+[[Mission concepts|Manned missions]] to Mars split in two different types. They are named after astronomical names of the moments of departure of the ships from Mars: [[conjunction]] and opposition. Opposition type mission have less total time on Mars, but more time spent travel in weightless conditions, and a much higher radiation load.  Conjunction mission have much more time spent in Mars surface. Сonjunction and opposite mission type examples:
 {| class="wikitable"

@@ Line 1: / Line 1: @@
 [[File:Conjunction_and_opposition_trajectory.jpg|thumb|center|1000x400px|alt=Conjunction and opposition mission trajectory.|Conjunction and opposition mission trajectory.]]
@@ Line 67: / Line 69: @@
 ==References==
 <references />

← Older revision		Revision as of 14:21, 13 November 2020
Line 67:		Line 67:
	==References==		==References==
	<references />		<references />
		+	[[Category:Mars Human Exploration]]

@@ Line 1: / Line 1: @@
 [[File:Conjunction_and_opposition_trajectory.jpg|thumb|center|1000x400px|alt=Conjunction and opposition mission trajectory.|Conjunction and opposition mission trajectory.]]
-Manned missions to Mars split in two different types. They are named after astronomical names of the moments of departure of the ships from Mars: [[conjunction]] and opposition. Opposition type mission have less total time but more time spent travel in weightless conditions, conjunction mission have much more time spent in Mars surface. Сonjunction and opposite mission type examples:
+[[Mission concepts|Manned missions]] to Mars split in two different types. They are named after astronomical names of the moments of departure of the ships from Mars: [[conjunction]] and opposition. Opposition type mission have less total time but more time spent travel in weightless conditions, conjunction mission have much more time spent in Mars surface. Сonjunction and opposite mission type examples:
 {| class="wikitable"
 |-
-! Mission type <ref name=Opposition_and_Conjunction> 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</ref>!! 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
+!Mission type <ref name="Opposition_and_Conjunction">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</ref>!!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 || 1005 || 198 || 558 || 197 || 2.81 || 0.50 || 1.25 || 1.06
+|Conjuction||1005||198||558||197||2.81||0.50||1.25||1.06
 |-
-| Opposition || 560 || 177 || 40 || 342 || 5.69 || 0.61 || 1.75 || 3.33
+|Opposition||560||177||40||342||5.69||0.61||1.75||3.33
 |}
@@ Line 18: / Line 18: @@
 [[File:Mars_oppositions.jpg|thumb|center|1000x770px|alt=Mars Oppositions from 1995 to 2007 year|Mars Oppositions from 1995 to 2007 year]]
-The required parameters change at intervals of 15-17 years<ref name=Interplanetary_Mission> L.E. George, L.D. Kos - ''Interplanetary Mission Design Handbook: Earth-to-Mars Mission Opportunities and Mars-to-Earth Return Opportunities 2009-2024'' in NASA Center for AeroSpace Information July 1998; Linthicum, Maryland</ref>.
+The required parameters change at intervals of 15-17 years<ref name="Interplanetary_Mission">L.E. George, L.D. Kos - ''Interplanetary Mission Design Handbook: Earth-to-Mars Mission Opportunities and Mars-to-Earth Return Opportunities 2009-2024'' in NASA Center for AeroSpace Information July 1998; Linthicum, Maryland</ref>.
 [[File:Mars_oppositions_2012-2061.png|thumb|center|740x400px|alt=Mars oppositions from 2012 to 2061 year.|Mars oppositions from 2012 to 2061 year.]]
@@ Line 28: / Line 28: @@
 {| class="wikitable"
 |-
-! Departure Date <ref name=Mission_opportunities> 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</ref>!! 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
+!Departure Date <ref name="Mission_opportunities">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</ref>!!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
+|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
+|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
+|14-Sep-2023||1.64||1 month||25.7/4.34||0.99||3.29/8.0||0.48/11.4
 |}
@@ Line 41: / Line 41: @@
 {| class="wikitable"
 |-
-! Departure Date <ref name=Mission_opportunities> 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</ref>!! 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
+!Departure Date <ref name="Mission_opportunities">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</ref>!!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
+|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
+|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
+|14-Oct-2024||2.62||0.87 years||12.1/3.76||0.82||0.73/5.5||0.58/11.5
 |}
-For reducing crew time exposure to weightless, interplanetary radiation and the risk of being hit by solar flare it is possible to use increasing delta-V. For some of these variants it is possible to use the option of free-return trajectory - trajectory with ability return back to Earth with small amount of delta-V spending safe if the main spacecraft engine will fail to start. Options for free-return trajectories<ref name=The_Cafe_for_Mars> Robert Zubrin - ''The Case for Mars: The Plan to Settle the Red Planet and Why We Must'' in Touchstone, 1996, New York.</ref>:
+For reducing crew time exposure to weightless, interplanetary radiation and the risk of being hit by solar flare it is possible to use increasing delta-V. For some of these variants it is possible to use the option of free-return trajectory - trajectory with ability return back to Earth with small amount of delta-V spending safe if the main spacecraft engine will fail to start. Options for free-return trajectories<ref name="The_Cafe_for_Mars">Robert Zubrin - ''The Case for Mars: The Plan to Settle the Red Planet and Why We Must'' in Touchstone, 1996, New York.</ref>:
 {| class="wikitable"
 |-
-! Departure Velocity, km/s !! Orbit Period, years !! Time to Earth Return, years !! Transit to Mars, days !! Mars Aeroentry possibility
+!Departure Velocity, km/s!!Orbit Period, years!!Time to Earth Return, years!!Transit to Mars, days!!Mars Aeroentry possibility
 |-
-| 3.34 || 1.5 || 3.0 || 250 || Easy
+|3.34||1.5||3.0||250||Easy
 |-
-| 5.08 || 2.0 || 2.0 || 180 || Acceptable
+|5.08||2.0||2.0||180||Acceptable
 |-
-| 6.93 || 3.0 || 3.0 || 140 || Dangerous
+|6.93||3.0||3.0||140||Dangerous
 |-
-| 7.93 || 4.0 || 4.0 || 130 || Impossible
+|7.93||4.0||4.0||130||Impossible
 |}
 ==References==
 <references />

← Older revision		Revision as of 21:00, 6 May 2019
Line 67:		Line 67:
	==References==		==References==
	<references />		<references />
−
−	~~[[Category:Logistics]]~~

@@ Line 1: / Line 1: @@
 Comparison conjunction and opposite mission type:
@@ Line 10: / Line 12: @@
 |}
-<big>Examples of near future missions</big>
+[[File:Conjunction_and_opposition_duration.jpg|thumb|center|1000x500px|alt=Conjunction and opposition Mars mission duration.|Conjunction and opposition Mars mission duration comparison.]]
 Mars short-stay (opposition) mission: