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JPL Small-Body Mission-Design Tool Search: help ]

   
   
   
   

The interactive interface of the JPL Small-Body Mission-Design Tool includes three sections:
  • Mission Options: contains an interactive data table presenting different mission options to the specified small body. Initially, the table is populated with a set of pre-computed trajectories. Details on the selection process and the back-end algorithms can be found in the Introduction. Missions selected by the user using the interactive tools will appear in this same table, with increasing "Id" numbers.
  • Mission Selection: its main component is an interactive pork-chop plot. Solid markers represent the solutions listed in the table of mission options. Select new missions by clicking on the figure, or simply hover the mouse over it to explore different transfer opportunities.
  • Launch Vehicle Selection: the plot shows the capabilities of different launch vehicles, considering both flyby and rendezvous missions. Click on the plot to add missions to the data table.
A tutorial is available for first-time users with detailed information about each component of the interface. This tool can be used in combination with the Small-Body Search Engine, designed to find potential candidates for future missions.
Orbit Data
Classification: -
SPK-ID: -
Orbit Id: -
Condition code: -
Data arc span (days): -
Low Thrust
Estimate of the ΔV required to reach the target orbit, disregarding the phasing within the orbits and the transfer time, and assuming constant acceleration. Phase-free transfers are only valid for closed orbits.
ΔV estimate: - km/s

Mission Options:


The following table lists relevant mission options. Each mission is assigned a unique "Id" to distinguish it from the rest. Initially, it contains the set of pre-computed solutions which includes the optimal launch opportunities (minimizing the departure C3). The pre-computed trajectories also include the cases of minimum time of flight and minimum arrival V-infinity. Switch to Mass mode to assess the capabilities of several launch vehicles. Order by decreasing "Id" (default) to see the user-added records on top.

Use the interactive tools Mission Selection and Launch Vehicle Selection to add missions to the table by simply clicking on the plots. Selected trajectories can be plotted in the ICRF system, using the at J2000 as the reference plane.


 
Id
 
Departure date Arrival date  
TOF
(days)
 
C3
(km2/s2)
V
dep.
(km/s)
V
arr.
(km/s)
Total
ΔV
(km/s)
Phase
angle
(deg)
Dist.
Earth
(au)
Approach
angle
(deg)
SEP
angle
(deg)

DLA
(deg)
Atlas V (401) (kg) Atlas V (421) (kg) Atlas V (531) (kg) Atlas V (551) (kg) Falcon 9 (kg) Falcon Heavy (kg) Delta IV-H (kg) SLS 1B (kg) SLS 2 (kg)
(cal) (MJD) (cal) (MJD) Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs Flyby Rdzs

Mission Selection - Pork-Chop Plot:


Click on the pork-chop plot to select a mission and to add it to the Mission Options table. Each blue marker represents one of the pre-computed missions, whereas orange markers represent the missions selected by the user. Use the controllers to customize the contours and the axes of the figure. The pork-chop plot is recomputed on the fly everytime you request a different launch period using the drop-down menu in the "Axis Setup" section. There are two selection modes available:

  • Add new points: the tooltip and the table under the pork-chop plot will display information about any point, and clicking on feasible missions will add them to the Mission Options table.
  • Explore selected: use this mode to see detailed information about the solid markers, which correspond to the missions listed in the Mission Options table.

For rendezvous missions, we assumed a specific impulse of 320 s to compute the arrival impulsive maneuver. Check the HOVER INFO to understand why certain missions cannot be selected. Keep in mind that each launch vehicle has a particular C3 limit; when operating in Rendezvous mode, you will only be able to select missions with C3 values within the capabilities of the selected launch vehicle.

Selection Mode

Contour Setup
Choose the variables to be displayed in the interactive contour plot. Use the input fields to define the ranges of the corresponding color bars, and the drop-down menu to specify the preferred number of contour levels in the plot.
-   Levels: 
-   Levels: 
      
Axis Setup
The launch period starts in and spans 5 years. Use the controls below to focus on a specific range of dates within the selected 5-year time span.
Dates Displayed:  - 
2018 2019 2020 2021 2022 2023
Specify the range of flight times to be displayed.
Time of flight:  - 
Hover the mouse over the figures

Departure date Arrival date  
TOF
(days)
 
C3
(km2/s2)
V
dep.
(km/s)
V
arr.
(km/s)
Total
ΔV
(km/s)
Phase
angle
(deg)
Dist.
Earth
(au)
Approach
angle
(deg)
SEP
angle
(deg)
Launch
declin.
(deg)
(cal) (MJD) (cal) (MJD)
- - - - - - - - - - - - - -

Atlas V (401) (kg) Atlas V (421) (kg) Atlas V (531) (kg) Atlas V (551) (kg) Falcon 9 (kg) Falcon Heavy (kg) Delta IV-H (kg) SLS 1B (kg) SLS 2 (kg)
Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs Flyby Rdzvs
-- -- -- -- -- -- -- -- --

Launch-Vehicle Selection:


The figure below shows the maximum mass of the spacecraft that will reach the target body when launched on a certain date. Note that the times of flight might vary across the plot. Use the control panels to select the mission type (flyby or rendezvous), and to update the list of launch vehicles. Click on the plot to add missions to the Mission Options table. Zoom in using the slider under the figure or by clicking and dragging on the chart. In Rdzvs mode, you cannot select missions if more than one launch vehicle is active.

Select Mission Type

Select Launch Vehicle
Atlas V (401)
Atlas V (421)
Atlas V (531)
Atlas V (551)
Falcon 9 (FT, ASDS)
Falcon Heavy
Delta IV Heavy
SLS Block 1B
SLS Block 2


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