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JPL Small-Body Database Browser
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48698 (1996 HJ20)
Classification: Main-belt Asteroid          SPK-ID: 2048698
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08593110267181205 5.0438e-08  
a 2.783635892605659 1.6599e-08 au
q 2.544434990917221 1.4179e-07 au
i 1.696228951536836 4.0429e-06 deg
node 85.30298516234058 0.00018898 deg
peri 271.6041666705078 0.00019059 deg
M 303.2727317019149 2.8055e-05 deg
tp 2459267.804603550676
(2021-Feb-22.30460355)
0.00013341 TDB
period 1696.356270366924
4.64
1.5174e-05
4.154e-08
d
yr
n .2122195710233272 1.8983e-09 deg/d
Q 3.022836794294097 1.8026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1995-01-28  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57995  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:11:59  

Additional Information
 Earth MOID = 1.54072 au 
 Jupiter MOID = 2.36031 au 
 T_jup = 3.326 
[ 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 14.8   n/a MPO439424  
diameter diameter 6.392 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

48698 (1996 HJ20)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1996 HJ20 = 1995 BY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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