Difference between revisions of "162173 Ryugu"
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Revision as of 02:41, 20 May 2024
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Project home: Ryugu-00.zip |
| Ryugu | |
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| 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
Orbits of the inner planets showing the orbit of Ryugu in white. From Wikimedia commons.
