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| JPL Small-Body Mission-Design Tool | Search: | [ help ] |
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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.
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| 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) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (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.
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