9969 Braille approximate shape scaled one in forty thousand

cults3d

This model was made using Microsoft 3D Builder to place three sphere in the place and size calculated by Oberts (2001), from two images returned by the Deep Space 1 probe in the relatively failed flyby of the Braille asteroid in its way to the Comet Borrelly. This paper describes how an algorithm looks for the best fit of different sizes and position of three spheres, that resemble the bright and shadows from the low resolution images of the asteroid. Then, the model the model was used to simulate and replicate the lightcurve of the asteroid. I just used this results to make the model, elongating a little the spheres, merging, and finally softening the entire model to make it look more like a normal asteroid. The file's names explained: name_1_x_10_y.stl is 1 : x * 10y. So _1_6_10_7 is 1:600000000 or one in 60 million. 9969 Braille The planned Deep Space 1 encounter with Braille would be the closest non-orbiting and non-impacting flyby ever made to an asteroid or comet, at a distance of 240 m, and it was the tinniest asteroid visited at the time. However the navigation system failed in detect the asteroid, and the flyby occurred 26 km away from it; even worse, the two single pictures were taken an hour after the closest approach, at a distance of 14000 km, resulting in a few pixels wide photos. In these photos, three reflected surfaces were visible, suggesting a tri-lobed shape, although it can be a contact binary with a very irregularly shaped component. Braille is a Mars crosser, but its perihelion is to far to be a Near Earth Asteroids. However, it will eventually evolve into an Earth crosser in a few thousand or million years if the interaction with planets (mainly with Jupiter) makes its orbit more eccentric. If it does, it will became a threat to our planet. Type: Asteroid. Orbit: Sun. Main Asteroid Belt. Orbital period: 3.58 yr. Rotational period: 226 h 20 min. Composition: Silicate rock. Q or V type. Contact trinary ?. Density: 3.9 g/cm3 Dimensions: 2.1 km × 1 km × 1 km Model scale: 1:2x104 (10cm) 1:4x104 (5cm) References A Model for Rotation and Shape of Asteroid 9969 Braille from Ground-Based Observations and Images Obtained during the Deep Space 1 (DS1) Flyby. Oberts. 2001. Other astronomical objects Object Scale [1:x] K = 103 (thousand)M = 106 (million)G = 109 (billion) Image Inner Solar System Mercury 20M, 60M, 120M Venus 60M, 120M, 250M Earth 60M, 120M, 250M Luna 10M, 20M, 60M Mars 20M, 60M, 120M Phobos and Deimos 200K, 500K Artificial Salyut 7 40, 48, 80, 160 Near Earth Asteroids Moshup and Squannit 8K, 20K, 40K Ra-Shalom 20K, 40K Castalia 8K, 20K, 40K Bacchus 8K, 20K Bennu 3K, 8K Ryugu 3K, 8K, 20K Geographos 40K, 80K Phaethon 40K, 80K Itokawa 3K, 8K Eros 80K, 200K, 500K Nereus 3K, 8K Mithra 20K, 40K Golevka 8K Toutatis 40K, 80K Main Asteroid Belt Gaspra 200K Annefrank 40K, 80K Braille 20K, 40K Vesta 2M, 4M, 10M Šteins 40K, 80K, 200K Iris 2M, 4M Hebe 1M, 2M, 4M Lutetia 500K, 1M, 2M Julia 1M, 2M, 4M Mathilde 500K, 1M Juno 2M, 4M Ceres 4M, 10M Pallas 4M, 10M