(481482) 2007 CA19
| Discovery | |
|---|---|
| Discovered by | Catalina Sky Survey |
| Discovery date | February 11, 2007 |
| Designations | |
| 2007 CA19 | |
| Orbital characteristics[1] | |
| EpochJanuary 13, 2016 (JD2457400.5) | |
| Uncertainty parameter0 | |
| Observation arc | 3258 days (8.92 yr) |
| Aphelion | 5.11769AU(765.596Gm) |
| Perihelion | 0.502914 AU (75.2349 Gm) |
| 2.81030 AU (420.415 Gm) | |
| Eccentricity | 0.821046 |
| 4.71yr(1720.8d) | |
| 306.543° | |
| 0° 12m33.142s/day | |
| Inclination | 9.58919° |
| 170.154° | |
| 102.390° | |
| EarthMOID | 0.0193363 AU (2.89267 Gm) |
| Physical characteristics | |
| 0.864 km[citation needed] | |
| Mass | 8.9×1011kg[citation needed] |
Meandensity | 2.6 g/cm3[citation needed] |
| 17.6 | |
(481482) 2007 CA19is a sub-kilometerasteroid,classified asnear-Earth objectandpotentially hazardous asteroidof theApollo group.It led the impact hazard list, with aTorino Scaleimpact risk value of 1, for one week, ending on February 19, 2007. Before and after2007 CA19,99942 Apophiswas the object with the highestPalermo Scalerating. With an observation arc of 4.8 days, it had a Palermo Scale of −0.88.[2]
2007 CA19was discovered on February 11, 2007, by theCatalina Sky Surveyat the University ofUniversity of Arizona.The object is estimated at 966 metres in diameter with a mass of a 1.2x1012kg. Until February 15, it had an impact probability of 1/625000 for the day March 14, 2012.[2]Additional observations through February 19 decreased the impact probability to ~1 in 300 million, making it of negligible concern. It was removed from theSentry Risk Tableon February 22, 2007.[3]
2007 CA19passed about 0.007AU(1,000,000km;650,000mi) from Venus on July 6, 1946.[1]
See also
[edit]References
[edit]- ^ab"JPL Close-Approach Data: (2007 CA19)".RetrievedMarch 30,2016.
2008-02-14 last obs (arc=5.85 yr)
- ^ab"Earth Impact Risk Summary: 2007 CA19".Wayback Machine: NASA/JPL Near-Earth Object Program Office. Archived fromthe originalon February 16, 2007.(1.6e-06= 1 in 625,000 chance)
- ^"Date/Time Removed".NASA/JPL Near-Earth Object Program Office. Archived fromthe originalon June 2, 2002.RetrievedJuly 27,2013.
External links
[edit]- (481482) 2007 CA19atNeoDyS-2, Near Earth Objects—Dynamic Site
- (481482) 2007 CA19atESA–space situational awareness
- (481482) 2007 CA19at theJPL Small-Body Database
