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85613 (1998 HC33)
Classification: Main-belt Asteroid          SPK-ID: 2085613
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143215124199301 3.5075e-08  
a 3.180117322528239 2.1479e-08 au
q 2.724676425214009 1.1093e-07 au
i 14.40698662987207 5.5175e-06 deg
node 19.26404094152636 1.5882e-05 deg
peri 98.05807991840746 2.8303e-05 deg
M 100.1901532990927 2.0484e-05 deg
tp 2458820.018093619600
(2019-Dec-02.51809362)
0.00011799 TDB
period 2071.396035071475
5.67
2.0986e-05
5.746e-08
d
yr
n .1737958332953833 1.7608e-09 deg/d
Q 3.63555821984247 2.4555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      9395 days (25.72 yr)  
   first obs. used      1995-09-18  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55986  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:36  

Additional Information
 Earth MOID = 1.78753 au 
 Jupiter MOID = 1.60896 au 
 T_jup = 3.135 
[ 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 14.52   n/a MPO637174  
diameter diameter 7.421 km 0.306 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85613 (1998 HC33)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 HC33 = 2001 SG281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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