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33240 (1998 HC3)
Classification: Main-belt Asteroid          SPK-ID: 2033240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1127498464964509 3.7199e-08  
a 3.001839940499015 2.0767e-08 au
q 2.663382948000836 1.0893e-07 au
i 14.2127175604529 4.827e-06 deg
node 177.482956299267 1.8205e-05 deg
peri 297.2251354579233 2.9574e-05 deg
M 168.0878024354263 2.4975e-05 deg
tp 2458113.520825668526
(2017-Dec-26.02082567)
0.00012894 TDB
period 1899.676824450126
5.20
1.9713e-05
5.397e-08
d
yr
n .1895059177258765 1.9666e-09 deg/d
Q 3.340296932997195 2.3109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      8652 days (23.69 yr)  
   first obs. used      1995-09-24  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:02:22  

Additional Information
 Earth MOID = 1.71273 au 
 Jupiter MOID = 1.80946 au 
 T_jup = 3.197 
[ 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 14.5   n/a MPO474185  
diameter diameter 6.296 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33240 (1998 HC3)          Discovered 1998-Apr-20 by Klet at Klet
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HC3 = 2000 QA179 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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