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56542 (2000 HJ63)
Classification: Main-belt Asteroid          SPK-ID: 2056542
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010982335325289 4.1778e-08  
a 2.41519762664677 8.2274e-09 au
q 1.929505650296149 1.036e-07 au
i 1.385491561285504 4.2693e-06 deg
node 162.4736178720188 0.00014536 deg
peri 205.5729029377967 0.00014564 deg
M 340.3667328715827 1.0777e-05 deg
tp 2459075.268300915918
(2020-Aug-13.76830092)
4.1279e-05 TDB
period 1370.968374935989
3.75
7.0053e-06
1.918e-08
d
yr
n .2625881140524547 1.3418e-09 deg/d
Q 2.900889602997392 9.8819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1038  
   data-arc span      10419 days (28.53 yr)  
   first obs. used      1990-11-17  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:50:30  

Additional Information
 Earth MOID = .928595 au 
 Jupiter MOID = 2.56102 au 
 T_jup = 3.489 
[ 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 MPO244649  
diameter diameter 2.185 km 0.416 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56542 (2000 HJ63)          Discovered 2000-Apr-26 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 HJ63 = 1999 AE15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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