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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435873673907944 3.8416e-08  
a 3.182321032946843 2.8054e-08 au
q 2.725379933633652 1.2598e-07 au
i 14.40393474380503 9.1665e-06 deg
node 19.27852117045514 1.7572e-05 deg
peri 98.29724476760568 3.9453e-05 deg
M 321.6981768235717 3.3555e-05 deg
tp 2458821.113130290520
(2019-Dec-03.61313029)
0.00019424 TDB
period 2073.549515874331
5.68
2.7419e-05
7.507e-08
d
yr
n .1736153379719041 2.2957e-09 deg/d
Q 3.639262132260034 3.2082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      8785 days (24.05 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61038  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:12:47  

Additional Information
 Earth MOID = 1.78798 au 
 Jupiter MOID = 1.60743 au 
 T_jup = 3.134 
[ 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 14.4   n/a MPO337904  
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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