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118997 (2000 YU39)
Classification: Main-belt Asteroid          SPK-ID: 2118997
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260434606979138 4.1121e-08  
a 3.139639984708019 2.5205e-08 au
q 2.743908895689875 1.3061e-07 au
i .376495981021914 5.3925e-06 deg
node 331.81083188 0.00078786 deg
peri 152.495743672085 0.00078827 deg
M 160.9266827457529 2.4668e-05 deg
tp 2458092.169782293510
(2017-Dec-04.66978229)
0.00013874 TDB
period 2031.974268002281
5.56
2.4469e-05
6.699e-08
d
yr
n .1771675978721576 2.1335e-09 deg/d
Q 3.535371073726163 2.8382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      7184 days (19.67 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5461  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:56:21  

Additional Information
 Earth MOID = 1.75945 au 
 Jupiter MOID = 1.52876 au 
 T_jup = 3.198 
[ 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 15.3   n/a MPO436572  
diameter diameter 5.459 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 24.24 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.045   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118997 (2000 YU39)          Discovered 2000-Dec-30 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2000 YU39 = 1999 RC250 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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