Haumea Odyssey -- Nuclear Electric Propulsion to the oddest planetoid | KSP(RSS/RO/Principia)

Описание к видео Haumea Odyssey -- Nuclear Electric Propulsion to the oddest planetoid | KSP(RSS/RO/Principia)

This video is the first time (should be) in the world to attempt an electric-propulsion-based interplanetary mission in Principia in the form of video, and it verifies its feasibility (the same applies to other types of low-thrust transfer).

The general method is as follows:
Open settings.cfg in the KSP root directory and alter AUTOSAVE_INTERVAL = 300 to AUTOSAVE_INTERVAL = 3E+08 (which is greater than the single burning time).
Use BetterTimeWarp for high-rate physics time warp. The maximum rate that can keep the vehicle stable on my device is 500x, so the time warp rate used in the video is 500x.
A reaction wheel with appropriate torque needs to be installed on the vehicle. The "appropriate" condition is that the attitude will not be unstable during high-rate physics time warp, and only the reaction wheel is used for attitude control during high-rate physics time warp. MechJeb2 is recommended for attitude control with its SMART A.S.S.
When performing high-rate physics time warp, all components on the vehicle must be rigidly connected and autostrutted to the heaviest part.
You also need to have the mentality to deal with various bugs, crashes, etc.
Since this video is the first attempt with this method, it took nearly a week to complete the Haumea capture burn.

Haumea and its satellites in the video are from my own mod RSS Expansion.
The basic information about Haumea is as follows: (Wikipedia)
Haumea (minor-planet designation 136108 Haumea) is a dwarf planet located beyond Neptune's orbit. Nominal estimates make it the third-largest known trans-Neptunian object, after Eris and Pluto, and approximately the size of Uranus's moon Titania.
Haumea's mass is about one-third that of Pluto, and 1/1400 that of Earth. Although its shape has not been directly observed, calculations from its light curve are consistent with it being a Jacobi ellipsoid, with its major axis twice as long as its minor. In October 2017, astronomers announced the discovery of a ring system around Haumea, representing the first ring system discovered for a trans-Neptunian object. Haumea's gravity was until recently thought to be sufficient for it to have relaxed into hydrostatic equilibrium, though that is now unclear. Haumea's elongated shape together with its rapid rotation, rings, and high albedo (from a surface of crystalline water ice), are thought to be the consequences of a giant collision, which left Haumea the largest member of a collisional family that includes several large trans-Neptunian objects and Haumea's two known moons, Hiʻiaka and Namaka.

The rocket is my own Galaxy Super-heavy Launch Vehicle family. The configuration used in the video is Galaxy He-T. Some parameters are as follows:
Total height: 115.7m
Take-off mass: 2943.822t
Take-off thrust: 3512t
200km, 28.25° LEO capacity: two-stage version is about 172t, three-stage version is not less than 200t
First stage diameter: 9m
First stage inert/gross mass: 114.377t/2258.577t
First stage engine: 9*RD-180
First stage vacuum thrust/specific impulse: 9*4152kN/338.4s
Second stage diameter: 9m
Second stage inert/gross mass: 35.121t/480.738t
Second stage engine: 2*RS-25D-E 150AR
Second stage vacuum thrust/specific impulse: 2*2364.5kN/461s
Third stage diameter: 7.85m
Third stage inert/gross mass: 22.446t/171.283t
Third stage engine: 4*RD-57
Third stage vacuum thrust/specific impulse: 4*392.3kN/456.6s

The spacecraft was self-designed and belongs to the NEP (Nuclear Electric Propulsion). Some parameters are as follows:
Stowed/deployed length: 21.7m/30.2m
Launch mass: 6.751t
Mass without chemical cruise module: 5.618t
Mass without lander: 5.53t
Xenon loaded: 549kg
Reactor design life: 15 years
Reactor electrical output: 100kWe (BOL)
Reactor start-up time: two years before arriving at Haumea
Electric propulsion system: 2*DS4G-50-hi Gridded Ion Thruster
Electric propulsion system input power: 2*49.18kWe
Electric propulsion system vacuum thrust: 2*600mN
Electric propulsion system vacuum specific impulse: 15000s
Effective total delta-v of the electric propulsion system: ≈15.1km/s
Attitude control system: 8*MR-103
Auxiliary power/heat source: 2*GPHSRTG
Lander inert/gross mass: 67kg/88kg
Lander propulsion system: (4+4)*MR-106

*Note 1: The shapes and surface features of Haumea and its satellites shown in the video are reasonable artistic creations based on real observation data.
*Note 2: Some people may ask why the spacecraft needs to be connected to the rocket with a truss, because the I forgot to consider how to connect it to the rocket when designing the spacecraft, and it is too long and fragile, so it needs trusses.
*Note 3: The chemical cruise module at the front of the spacecraft is used for orbit correction before the reactor is started, and is jettisoned before that.

Thanks for watching the video.

This video is being translated into English.
For the original Chinese version and more of my videos, please see my Bilibili page:
【Charon_S丶的个人空间-哔哩哔哩】 https://b23.tv/l7RH7sA

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