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JPL Small-Body Database Browser
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71921 (2000 WY54)
Classification: Main-belt Asteroid          SPK-ID: 2071921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371441498407642 3.26e-08  
a 2.317360197173057 8.467e-09 au
q 1.999547803056932 7.5692e-08 au
i 6.513438888868994 3.894e-06 deg
node 79.35558343741792 4.0327e-05 deg
peri 8.34744306198548 4.4194e-05 deg
M 91.62598264800152 1.8912e-05 deg
tp 2458272.552075798206
(2018-Jun-03.05207580)
6.6986e-05 TDB
period 1288.512813731016
3.53
7.0618e-06
1.933e-08
d
yr
n .2793918664709157 1.5312e-09 deg/d
Q 2.635172591289181 9.6282e-09 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      13298 days (36.41 yr)  
   first obs. used      1982-12-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51532  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:37:39  

Additional Information
 Earth MOID = 1.0161 au 
 Jupiter MOID = 2.55816 au 
 T_jup = 3.559 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO436286  
diameter diameter 2.057 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.289   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71921 (2000 WY54)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 WY54 = 1982 XT1 = 1998 HT140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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