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JPL Small-Body Database Browser
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256546 (2007 HC5)
Classification: Main-belt Asteroid          SPK-ID: 2256546
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05789133625191133 5.0907e-08  
a 2.892938489271796 3.4813e-08 au
q 2.725462414433266 1.6387e-07 au
i 6.296179473349077 5.487e-06 deg
node 93.98505734891523 5.1108e-05 deg
peri 31.65697379470214 7.3396e-05 deg
M 305.7732353074829 5.4994e-05 deg
tp 2459271.218802072811
(2021-Feb-25.71880207)
0.00027653 TDB
period 1797.244760937406
4.92
3.2441e-05
8.882e-08
d
yr
n .2003066069933799 3.6156e-09 deg/d
Q 3.060414564110326 3.6828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      6449 days (17.66 yr)  
   first obs. used      2002-04-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48367  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:08:18  

Additional Information
 Earth MOID = 1.74348 au 
 Jupiter MOID = 1.98786 au 
 T_jup = 3.278 
[ 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 15.9   n/a MPO454909  

256546 (2007 HC5)          Discovered 2007-Apr-17 by Charleston at Charleston
Reference: 20101128/Numbers.arcLast Updated: 2010-12-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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