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JPL Small-Body Database Browser
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11918 (1992 UY)
Classification: Main-belt Asteroid          SPK-ID: 2011918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815237847704208 4.3328e-08  
a 2.310899117724932 7.8809e-09 au
q 1.891415963652876 9.9518e-08 au
i 6.52447393992122 4.3605e-06 deg
node 179.5660160324796 3.0642e-05 deg
peri 207.0274210166887 3.21e-05 deg
M 314.5404860365389 1.1246e-05 deg
tp 2459162.528792078694
(2020-Nov-09.02879208)
4.0627e-05 TDB
period 1283.127778163531
3.51
6.5638e-06
1.797e-08
d
yr
n .280564419324822 1.4352e-09 deg/d
Q 2.730382271796988 9.3114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1381  
   data-arc span      9797 days (26.82 yr)  
   first obs. used      1992-10-21  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:11:40  

Additional Information
 Earth MOID = .897747 au 
 Jupiter MOID = 2.72332 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO337359  
rotation period rot_per 6.307 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

11918 (1992 UY)          Discovered 1992-Oct-21 by Urata, T. at Oohira
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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