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190971 (2001 XY51)
Classification: Main-belt Asteroid          SPK-ID: 2190971
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149582346183338 3.4547e-08  
a 2.400172693039742 1.1415e-08 au
q 2.041149230369677 8.5322e-08 au
i 2.431211702964236 3.9792e-06 deg
node 96.10117444311999 0.00010248 deg
peri 353.9728943569966 0.00010397 deg
M 27.07898847396187 2.0415e-05 deg
tp 2459098.337361861772
(2020-Sep-05.83736186)
7.658e-05 TDB
period 1358.195110025144
3.72
9.689e-06
2.653e-08
d
yr
n .2650576469777861 1.8908e-09 deg/d
Q 2.759196155709807 1.3122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1999-03-23  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:03:50  

Additional Information
 Earth MOID = 1.05744 au 
 Jupiter MOID = 2.42196 au 
 T_jup = 3.510 
[ 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 16.1   n/a MPO494056  
diameter diameter 1.891 km 0.456 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.164   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190971 (2001 XY51)          Discovered 2001-Dec-10 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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