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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435873673966082 3.8414e-08  
a 3.182321030290161 2.6891e-08 au
q 2.725379931339936 1.2573e-07 au
i 14.40393306095307 8.595e-06 deg
node 19.27852070334594 1.7543e-05 deg
peri 98.29724132291764 3.7696e-05 deg
M 321.6981809965923 3.1192e-05 deg
tp 2458821.113105978246
(2019-Dec-03.61310598)
0.00018036 TDB
period 2073.549513277753
5.68
2.6283e-05
7.196e-08
d
yr
n .1736153381893118 2.2006e-09 deg/d
Q 3.639262129240387 3.0752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      8837 days (24.19 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:17:57  

Additional Information
 Earth MOID = 1.78798 au 
 Jupiter MOID = 1.60743 au 
 T_jup = 3.134 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456997.5 (2014-Dec-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447515084873542 3.8489e-08  
q 2.720249555026875 1.2627e-07 au
tp 2456750.709010949305
(2014-Apr-03.20901095)
0.0001735 TDB
node 19.28779312228941 1.7546e-05 deg
peri 98.57207264007923 3.7428e-05 deg
i 14.4061885508655 8.5958e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      8837 days (24.19 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:17:57  

Additional Information
 Jupiter MOID = 1.60743 au 
 T_jup = 3.134 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.481371625359898E-15 -4.779216709955594E-15 1.302206354278151E-12 -2.912882014338529E-15 2.70821411642095E-13 -5.979618372376441E-15
q -4.779216709955594E-15 1.594375920679861E-14 -3.702996897562789E-12 7.80584627774089E-15 -7.724475664609551E-13 2.092649642585404E-14
tp 1.302206354278151E-12 -3.702996897562789E-12 3.010054501949846E-8 -6.305044042765955E-11 5.747554495184097E-9 1.478099124630521E-11
node -2.912882014338529E-15 7.80584627774089E-15 -6.305044042765955E-11 3.078632893669805E-10 -3.094418612764175E-10 1.484208454758314E-11
peri 2.70821411642095E-13 -7.724475664609551E-13 5.747554495184097E-9 -3.094418612764175E-10 1.400891589581486E-9 -1.152578636120777E-11
i -5.979618372376441E-15 2.092649642585404E-14 1.478099124630521E-11 1.484208454758314E-11 -1.152578636120777E-11 7.388779168824174E-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 14.4   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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