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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814464969906636 4.0641e-08  
a 2.310551189367771 4.8893e-09 au
q 1.891309769939377 9.4581e-08 au
i 6.524944860779994 4.0477e-06 deg
node 179.56458125455 2.3587e-05 deg
peri 207.0801016023931 2.4978e-05 deg
M 10.62036024675685 6.9709e-06 deg
tp 2459162.654995046538
(2020-Nov-09.15499505)
2.4826e-05 TDB
period 1282.838008005113
3.51
4.0719e-06
1.115e-08
d
yr
n .2806277938083709 8.9074e-10 deg/d
Q 2.729792608796164 5.7764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1954  
   data-arc span      10360 days (28.36 yr)  
   first obs. used      1992-10-21  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:01:49  

Additional Information
 Earth MOID = .896386 au 
 Jupiter MOID = 2.72499 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 14.90   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

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