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19471 (1998 HK52)
Classification: Main-belt Asteroid          SPK-ID: 2019471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154679893322614 5.1237e-08  
a 3.160702980705847 1.7057e-08 au
q 2.671805780825799 1.5852e-07 au
i 10.67423571781497 4.6046e-06 deg
node 64.4111947112969 2.7277e-05 deg
peri 134.7498547794477 2.9622e-05 deg
M 71.30307042275018 1.2182e-05 deg
tp 2458989.982087512928
(2020-May-20.48208751)
6.9402e-05 TDB
period 2052.45647386108
5.62
1.6615e-05
4.549e-08
d
yr
n .1753995783027585 1.4199e-09 deg/d
Q 3.649600180585896 1.9696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1474  
   data-arc span      9386 days (25.70 yr)  
   first obs. used      1995-10-17  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48696  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:48:29  

Additional Information
 Earth MOID = 1.68174 au 
 Jupiter MOID = 1.37172 au 
 T_jup = 3.160 
[ 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 13.58   n/a E2021B10  
diameter diameter 6.792 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19471 (1998 HK52)          Discovered 1998-Apr-25 by Zoltowski, F. B. at Woomera
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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