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192495 (1998 HJ64)
Classification: Main-belt Asteroid          SPK-ID: 2192495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103787877524065 6.6184e-08  
a 2.641678315847704 1.859e-08 au
q 2.367504130344524 1.7692e-07 au
i 4.071809129921452 6.4145e-06 deg
node 45.14271089499736 7.4153e-05 deg
peri 132.3761110480514 7.8228e-05 deg
M 127.9821047232999 2.5182e-05 deg
tp 2458642.974069593701
(2019-Jun-08.47406959)
0.00010797 TDB
period 1568.260932887498
4.29
1.6554e-05
4.532e-08
d
yr
n .2295536364201615 2.4231e-09 deg/d
Q 2.915852501350884 2.0519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60534  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:23  

Additional Information
 Earth MOID = 1.37283 au 
 Jupiter MOID = 2.0446 au 
 T_jup = 3.383 
[ 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 16.20   n/a E2021B55  
diameter diameter 4.149 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192495 (1998 HJ64)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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