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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433761126633735 3.832e-08  
a 3.181608110406295 2.2927e-08 au
q 2.725441507517979 1.2421e-07 au
i 14.40410020363446 5.7644e-06 deg
node 19.26529102610602 1.7036e-05 deg
peri 98.22427138363531 3.193e-05 deg
M 31.21809981903677 2.2871e-05 deg
tp 2458820.748543281148
(2019-Dec-03.24854328)		 0.00013198 TDB
period 2072.852761503639
5.68		 2.2406e-05
6.134e-08		 d
yr
n .1736736958291516 1.8773e-09 deg/d
Q 3.63777471329461 2.6215e-08 au
   Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:31  

Additional Information
 Earth MOID = 1.78775 au 
 Jupiter MOID = 1.60748 au 
 T_jup = 3.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457421.5 (2016-Feb-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444245745106831 3.8425e-08  
q 2.720408654983374 1.2457e-07 au
tp 2456750.167269654142
(2014-Apr-02.66726965)		 0.00013588 TDB
node 19.28460668541507 1.7036e-05 deg
peri 98.47816735014513 3.1738e-05 deg
i 14.40772443667928 5.7657e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:31  

Additional Information
 Jupiter MOID = 1.60748 au 
 T_jup = 3.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.476459157907881E-15 -4.72768524923484E-15 1.482795711034452E-12 -4.10442767256256E-15 3.045057437176633E-13 -8.644672775912471E-15
q -4.72768524923484E-15 1.55175811280498E-14 -5.566514040539321E-12 1.61520392547633E-14 -1.112591001945196E-12 2.822124351741605E-14
tp 1.482795711034452E-12 -5.566514040539321E-12 1.84621202884205E-8 -4.101827929377498E-11 3.651462754619157E-9 -1.065013519832702E-11
node -4.10442767256256E-15 1.61520392547633E-14 -4.101827929377498E-11 2.902347379976529E-10 -2.885618418901463E-10 -9.133091832473317E-12
peri 3.045057437176633E-13 -1.112591001945196E-12 3.651462754619157E-9 -2.885618418901463E-10 1.007271008111061E-9 6.815654978757993E-12
i -8.644672775912471E-15 2.822124351741605E-14 -1.065013519832702E-11 -9.133091832473317E-12 6.815654978757993E-12 3.32429973313713E-11

[ 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 14.5   n/a MPO502666  
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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