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Discovery
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|---|---|
| Discovered by | Catalina Sky Survey |
| Discovery date | February 11, 2007 |
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Designations
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| Alternate name(s) | none |
| Minor planet category |
Apollo asteroid, Earth-crosser asteroid Mars-crosser asteroid |
| Epoch April 10, 2007 (MJD 54200) | |
| Aphelion | 3.5364 AU |
| Perihelion | 0.534 AU |
| Semi-major axis | 2.03517 AU |
| Eccentricity | 0.737636 |
| Orbital period | 1060.47 days |
| Average orbital speed | ? m/s |
| Mean anomaly | 343.616° |
| Inclination | 8.407° |
| Longitude of ascending node | 178.802° |
| Argument of perihelion | 95.374° |
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Physical characteristics
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| Dimensions | 0.864 km |
| Mass | 8.9×1011 kg |
| Mean density | 2.6 g/cm³ |
| Equatorial surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ? K |
| Spectral type | ? |
| Absolute magnitude (H) | 17.9 |
2007 CA19 (also written 2007 CA19) is a near-Earth asteroid. It led the impact hazard list, with a Torino Scale impact risk value of 1, for one week, ending on February 19, 2007. Before and after 2007 CA19, 99942 Apophis was the object with the highest Palermo Scale rating.
2007 CA19 was discovered on February 11, 2007 by the Catalina Sky Survey at the University of University of Arizona. The object is estimated at 966 metres in diameter with a mass of a 1.2x1012 kg. Until February 15, it had an impact probability of 1/625000 (computed by NASA's Sentry program). Additional observations through February 19 decreased the impact probability of ~1 in 300 million, making it of negligible concern.
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