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JPL Small-Body Database Browser
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85617 (1998 HJ86)
Classification: Main-belt Asteroid          SPK-ID: 2085617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458246387743243 3.3456e-08  
a 2.459312024981775 1.2382e-08 au
q 2.100683737305455 8.2406e-08 au
i .8258607816819005 4.3729e-06 deg
node 13.72222343969944 0.00030252 deg
peri 242.0254989677458 0.00030304 deg
M 128.8956450844661 1.8247e-05 deg
tp 2458096.123759236315
(2017-Dec-08.62375924)
7.0651e-05 TDB
period 1408.701174938372
3.86
1.0638e-05
2.913e-08
d
yr
n .2555545536587981 1.9299e-09 deg/d
Q 2.817940312658094 1.4187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      668  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1998-04-21  
   last obs. used      2018-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59042  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:14:40  

Additional Information
 Earth MOID = 1.08568 au 
 Jupiter MOID = 2.22807 au 
 T_jup = 3.476 
[ 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 16.0   n/a MPO453286  
diameter diameter 1.723 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.216   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85617 (1998 HJ86)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 HJ86 = 2002 JR58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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