Asteroid videos (i.e., Asteroid videos):
    champions_sharron High Cal:
    1. Asteroid Belt---Edge On View | 0:40: Yours truly can't attest to its authoritativeness, but it looks OK---the data were provided by the Minor Planet Center and Lowell Observatory. The asteroids are obviously NOT all the in the ecliptic plane. The orbits are approximated as unperturbed, and thus they should all be planar and have a focus point at the Sun: more exactly, the Solar-system barycenter The orbits look a bit like they are just a swarm---but that's probably an illusion, NOT a mistake.
    2. Asteroid Discovery From 1980--2010 | 3:08: Yours truly can't attest to its authoritativeness, but it looks OK. Too long for the classroom.
    3. Spacecraft on its way to the Asteroids, 2009jan01 | 2:28: Informative, but note that the animation asteroids are NOT to-scale. Real asteroids are minute compared to their orbits---if you were standing on an asteroid, only very close other asteroids would be seen and only as dim stars. It's all about the Dawn spacecraft (2007--2018) which explored Vesta ⚶ 2011--2012 and Ceres ⚳ 2015--present. Narrated by Leonard Nimoy (1931--2015). Good for the classroom even if a bit long.
    4. NASA JPL Apophis Asteroid Investigation | 3:03: 99942 Apophis (discovered 2004; size scale ∼ 0.370 km) will almost certainly NOT be an Earth impactor on 2029 Apr13 NOR in 2036 March (see Wikipedia: 99942 Apophis: Close approaches). But for while just after discovery Apophis looked like a threat---briefly it probability 27 % of impact in 2029 before more Data dropped the probability to zero. Actually, the cumulative probability for the next 100 years is 8.9*10**(-6) (see NASA: Sentry Risk Table). So it is a bit threatening. Too long for the classroom.
    5. Cratered Surface of Ceres in Motion | 0:16: Images of Ceres ⚳ by the Dawn spacecraft (2007--2018). Short enough for the classroom.
    6. Rosetta's view of Lutetia, July 2010 | 0:15: 21 Lutetia (discovered 1852, size scale 100 km) from the Rosetta spacecraft (2004--2016). OK for the classroom.
    7. Asteroid 433: Eros Rotation | 01:18: 433 Eros, the love asteroid. OK for the classroom.
    Low Cal:
    1. Painted Stone: Asteroids in the Sloan Digital Sky Survey | 3:08: Pretty, but NOT very informative of anything. Too long for the classroom.
    2. Sajri Animation of Asteroids and Trojans | ∼ 0:10 and cycles : Good.
    3. Asteroid Belt | 0:09: OK.
    4. Approach of the Asteroid Eros | 1:24: 433 Eros was explored by NEAR Shoemaker (launched 1996) in 2000--2001 ending with a landing on 2001feb12. A bit long for the classroom.
    5. near descent eros | 0:48: Animation and stills of NEAR Shoemaker's descent on Eros. Yours truly can't attest to its accuracy. Short enough for the classroom.
    Local file: local link: asteroid_videos.html.
    File: Asteroid file: asteroid_videos.html.