162173 Ryugu

Project home: Ryugu-00.zip Author: francisdrake Current version: 00 Compatibility: Orbiter 2016

Ryugu
Ryugu in Orbiter
Designation
Name	Ryugu
Reference body	Sun
Number of satellites	0
Planetary mean orbits
Epoch	2020.9596167
Semimajor axis (a)	1.78107351195385×1011 km (1.19057410625364 AU)
Eccentricity (e)	0.1909944
Inclination (i)	0.102690286265441 radian (5.88372°)
Longitude of the ascending node (LAN, ☊)	0 radian 0°
Rotational Elements
Sidereal Rotation Period	87133.4717273712 seconds (1.00848925610383 days)
Sidereal Rotation Offset	0
Selected physical parameters
Mean radius	450 m
Mass	7.24641539269111×10<su>10 kg
Equatorial gravity	0.0000239 m/s-10
Escape velocity	0.000147 m/s
Gravity at surface	Ryugu 1% Sun 99%
Note	*Elements given are from Ryugu.cfg file.

162173 Ryugu or in Orbiter simply Ryugu is near-Earth object of the Appolo group of small bodies, discovered by Lincoln Near-Earth Asteroid Research astronomers on 10 May 1999.

Ryugu is an add-on by francisdrake released in 2023 on the forum, and is compatible with Orbiter 2016. In Orbiter, Ryugu orbits the Sun with a semi-major axis of 1.19 AU, inclination of 0.1027 radians, and eccentricity of 0.19. Its gravity is very weak, even at the surface, in OrbitMFD, Ryugu's gravity is 1% and the Sun's gravity is 99%. A person could literally jump at greater than escape speed. Rotation is just over a day.

The landing surface (hard radius) is well inside the mesh/texture, so, landing on Ryugu places the spacecraft well inside the body.

Gallery

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  Orbits of the inner planets showing the orbit of Ryugu in white. From Wikimedia commons.