(251732) 1998 HG49
| Discovery[1][2] | |
|---|---|
| Discovered by | Spacewatch from Kitt Peak |
| Discovery date | 27 April 1998 |
| Designations | |
| 1998 HG49 | |
| Amor[1] | |
| Orbital characteristics[1][3] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 6175 days (16.91 yr) |
| Aphelion | 1.33569371 AU (199.816935 Gm) (Q) |
| Perihelion | 1.0654426 AU (159.38794 Gm) (q) |
| 1.20056815 AU (179.602439 Gm) (a) | |
| Eccentricity | 0.1125514 (e) |
| 1.32 yr (480.48 d) | |
| 11.052123° (M) | |
| 0° 44m 57.282s / day (n) | |
| Inclination | 4.1953173° (i) |
| 44.832211° (Ω) | |
| 324.26152° (ω) | |
| Earth MOID | 0.0755827 AU (11.30701 Gm) |
| Jupiter MOID | 3.88966 AU (581.885 Gm) |
| TJupiter | 5.286 |
| Physical characteristics | |
| Dimensions | 0.13–0.29 km[2] |
| 21.7[1] or 21.8[2] | |
(251732) 1998 HG49, also written as (251732) 1998 HG49, is an asteroid on a low-eccentricity and low-inclination orbit between the orbits of Earth and Mars. This is within a region of stability where bodies may survive for the age of the Solar System, and hence it may have formed near its current orbit.[4]
It is classified as an Amor asteroid[1] because its perihelion is less than 1.3 AU and does not cross Earth's orbit.
Between 1900 and 2200 its closest approach to Earth is more than 0.14 AU.[5]
See also
References
- ^ a b c d e "JPL Small-Body Database Browser: 251732 (1998 HG49)". 30 November 2010. Retrieved 7 April 2016.
- ^ a b c NeoDys-2 Retrieved 2011-09-05
- ^ AstDys-2 Retrieved 2011-09-05
- ^ Evans, N. W. & Tabachnik, S. (1999). Possible long-lived asteroid belts in the inner Solar System. Nature.
- ^ JPL close-approach data Retrieved 2011-09-05
External links
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