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39246 (2000 YU81)
Classification: Main-belt Asteroid          SPK-ID: 2039246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187930484795806 4.3756e-08  
a 2.455836068520357 1.178e-08 au
q 1.9943096055843 1.0208e-07 au
i 2.210526775049786 3.9153e-06 deg
node 170.161059564419 8.2321e-05 deg
peri 170.1204969908875 8.2881e-05 deg
M 1.001306361858961 1.1132e-05 deg
tp 2458596.590133203720
(2019-Apr-23.09013320)
4.345e-05 TDB
period 1405.71567332047
3.85
1.0114e-05
2.769e-08
d
yr
n .2560973081772907 1.8426e-09 deg/d
Q 2.917362531456414 1.3994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1249  
   data-arc span      8390 days (22.97 yr)  
   first obs. used      1996-12-17  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54232  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:08:44  

Additional Information
 Earth MOID = .984872 au 
 Jupiter MOID = 2.47465 au 
 T_jup = 3.467 
[ 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 15.2   n/a MPO449240  
rotation period rot_per 2.987 h n/a LCDB (Rev. 2019-January); 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.]

39246 (2000 YU81)          Discovered 2000-Dec-30 by LINEAR at Socorro
Reference: 20020328/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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