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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274144457251778 3.5393e-08  
a 3.136021921724068 2.475e-08 au
q 2.736447426785589 1.1005e-07 au
i .3756220490364063 4.5941e-06 deg
node 331.8620221587253 0.00078134 deg
peri 153.2157699389245 0.00078168 deg
M 195.3994819417149 2.3213e-05 deg
tp 2460127.961218268503
(2023-Jul-02.46121827)
0.00013273 TDB
period 2028.462865824224
5.55
2.4014e-05
6.575e-08
d
yr
n .1774742865966745 2.101e-09 deg/d
Q 3.535596416662547 2.7904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      7215 days (19.75 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53523  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:59:51  

Additional Information
 Earth MOID = 1.75182 au 
 Jupiter MOID = 1.52607 au 
 T_jup = 3.199 
[ 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. 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]
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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