Holy Close Call Batman, asteroid 2014 RC

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Discussion Overview

The discussion centers around the close approach of Asteroid 2014 RC, which is described as being the size of a house and passing within 1000 miles of Earth. Participants explore the implications of this event, including observational opportunities and the potential dangers posed by near-Earth objects (NEOs).

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that the asteroid will pass close to Earth, specifically above New Zealand, and provides a link to a news article for more details.
  • Another participant expresses surprise at the proximity of the asteroid and mentions conflicting reports regarding its distance relative to geosynchronous satellite orbits.
  • Some participants discuss the potential for Southern Hemisphere observers to view the asteroid, estimating its brightness at magnitude +11.5 and its trajectory through the constellations Pictor and Puppis.
  • There are mentions of the Virtual Telescope Project streaming the event live, with details on when to watch.
  • One participant raises concerns about the dangers posed by NEOs, emphasizing that while a house-sized asteroid is not catastrophic, it could still be dangerous, comparing its impact to that of a half-megaton nuclear explosion.
  • This participant also discusses the limitations of current NEO detection programs, noting that many smaller asteroids are not cataloged and could pose risks.

Areas of Agreement / Disagreement

Participants express a mix of excitement and concern regarding the asteroid's close approach. There is some disagreement about the exact distance of the asteroid relative to geosynchronous satellites, and the discussion reflects varying levels of concern about the potential dangers of NEOs.

Contextual Notes

The discussion includes uncertainties regarding the asteroid's distance and visibility, as well as the effectiveness of current NEO detection efforts, particularly for smaller bodies.

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Wow, that's pretty close!
 
Drakkith said:
Wow, that's pretty close!

Another report puts it at just outside of Geosyn. Sat. Orbits, so I'm not sure which is correct.
In any case Southern Hemi observers with appropriate equipment might be able to catch it briefly at magnitude +11.5 traveling fast across the constellations Pictor and Puppis.
...
 
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This is yet another example of how vulnerable we are to NEO's. Granted, a house size boulder is not of doomsday proportions, but, still extremely dangerous. According to http://janus.astro.umd.edu/astro/impact/ an asteroid this size would pack the punch of a half megaton nuke, and can be expected to happen about every 20 years. The NEO program operated by JPL is intended to catalog bodies in the 1 kilometer class, so it offers no protection from mere house sized bodies. The potential hazardous asteroid catalog by NASA accounts for about 1500 objects, the vast majority of which are over 150 meters in size. More modest sized rocks are not catalogued because they are too small to be detected. A 150 meter rock would be equivalent to a 200 megaton nuke and trigger a magnitude 7 earthquake. Pretty scary stuff.
 

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