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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181523784147143 4.1082e-08  
a 2.310899117165858 5.0689e-09 au
q 1.891415964635619 9.5696e-08 au
i 6.524474462355784 4.2412e-06 deg
node 179.5660346824447 2.382e-05 deg
peri 207.0274018887129 2.5231e-05 deg
M 314.5404869669819 7.2352e-06 deg
tp 2459162.528788703569
(2020-Nov-09.02878870)
2.5877e-05 TDB
period 1283.127777697892
3.51
4.2218e-06
1.156e-08
d
yr
n .280564419426637 9.2312e-10 deg/d
Q 2.730382269696097 5.9891e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      10250 days (28.06 yr)  
   first obs. used      1992-10-21  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:47:27  

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. 2020-October); 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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