2003 LA7
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| Discovery | |
|---|---|
| Discovery date | 2003 |
| Designations | |
| MPC designation | 2003 LA7 |
| 1:4 resonance[1][2] | |
| Orbital characteristics[3] | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 3277 days (8.97 yr) |
| Aphelion | 115.01 AU (17.205 Tm) (Q) |
| Perihelion | 35.896 AU (5.3700 Tm) (q) |
| 75.451 AU (11.2873 Tm) (a) | |
| Eccentricity | 0.52425 (e) |
| 655.40 yr (239387 d) | |
| 351.12° (M) | |
| 0° 0m 5.414s /day (n) | |
| Inclination | 5.6452° (i) |
| 34.174° (Ω) | |
| 272.03° (ω) | |
| Earth MOID | 34.8845 AU (5.21865 Tm) |
| Jupiter MOID | 30.8067 AU (4.60862 Tm) |
| Physical characteristics | |
| Dimensions | ~231 km (assumed)[4] |
| 0.09 (assumed) | |
| ~22.4[5] | |
| 6.5[3] | |
2003 LA7 is a resonant trans-Neptunian object in a 1:4 orbital resonance with Neptune. This means that it goes around the Sun once for every four times that Neptune goes around. Another example of such object in this resonance is 2011 UP411.
Orbit File:TNO-2003LA7-orbit.gifThe orbit of "fourtino" 2003 LA7 compared to Pluto and Neptune. |
1:4 Libration File:TNO-2003LA7-50000y.gifNeptune is held stationary at 5 o'clock. |
It is currently 43 AU from the Sun,[5] and will come to perihelion around 2041.[3]
Assuming a generic TNO albedo of 0.09, it is about 231 km in diameter.[4]
It has been observed 26 times over 4 oppositions.[3]
See also
- (119979) 2002 WC19 (a twotino)
- (136120) 2003 LG7 ("threetino")
References
- ↑ "MPEC 2009-C70 :Distant Minor Planets (2009 FEB. 28.0 TT)". Minor Planet Center. 10 February 2009. Retrieved 14 March 2009.
- ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 03LA7" (last observation: 2008-03-12 using 17 of 18 observations). SwRI (Space Science Department). Retrieved 13 October 2014.
- ↑ 3.0 3.1 3.2 3.3 "JPL Small-Body Database Browser: (2003 LA7)" (last observation: 2007-04-21). Retrieved 30 March 2016.
- ↑ 4.0 4.1 Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 13 February 2009. Retrieved 14 March 2009. Unknown parameter
|url-status=ignored (help) - ↑ 5.0 5.1 "AstDys 2003LA7 Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 26 May 2011. Retrieved 19 March 2009. Unknown parameter
|url-status=ignored (help)
External links
- 2003 LA7 at AstDyS-2, Asteroids—Dynamic Site
- 2003 LA7 at the JPL Small-Body DatabaseLua error in Module:WikidataCheck at line 23: attempt to index field 'wikibase' (a nil value).
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