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52568 (1997 HJ8)
Classification: Main-belt Asteroid          SPK-ID: 2052568
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2367753518656168 5.6153e-08  
a 2.379746407654654 1.1908e-08 au
q 1.816281114631285 1.3391e-07 au
i 2.125486346252529 6.3141e-06 deg
node 176.4524424088042 0.00012807 deg
peri 198.4355375897555 0.00012863 deg
M 214.0877280518583 1.6899e-05 deg
tp 2459143.980249010281
(2020-Oct-21.48024901)
6.6122e-05 TDB
period 1340.893997684016
3.67
1.0064e-05
2.755e-08
d
yr
n .2684775982454913 2.0151e-09 deg/d
Q 2.943211700678022 1.4727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      8490 days (23.24 yr)  
   first obs. used      1996-02-10  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:47:25  

Additional Information
 Earth MOID = .816611 au 
 Jupiter MOID = 2.51668 au 
 T_jup = 3.500 
[ 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 15.3   n/a MPO287137  
diameter diameter 3.280 km 0.273 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.150   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52568 (1997 HJ8)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 HJ8 = 1998 RE75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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