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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815527215051787 4.0584e-08  
a 2.310943629575664 4.8855e-09 au
q 1.891385524381147 9.4457e-08 au
i 6.524873116640006 4.0424e-06 deg
node 179.5603659999377 2.3584e-05 deg
peri 207.1171053369676 2.4973e-05 deg
M 65.58269993422125 6.9883e-06 deg
tp 2459162.740512774809
(2020-Nov-09.24051277)
2.4812e-05 TDB
period 1283.164851179866
3.51
4.0691e-06
1.114e-08
d
yr
n .2805563132975323 8.8968e-10 deg/d
Q 2.730501734770181 5.7725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1975  
   data-arc span      10398 days (28.47 yr)  
   first obs. used      1992-10-21  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47758  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:39:31  

Additional Information
 Earth MOID = .897019 au 
 Jupiter MOID = 2.72528 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.90   n/a E2021B10  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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