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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05797182988270921 4.9236e-08  
a 2.893475756288524 2.7223e-08 au
q 2.725735671975222 1.547e-07 au
i 6.295812789739519 5.1908e-06 deg
node 93.98532292042466 4.2426e-05 deg
peri 31.47261504390266 5.9506e-05 deg
M 346.0019059972404 4.0688e-05 deg
tp 2459270.402805074235
(2021-Feb-24.90280507)
0.00020317 TDB
period 1797.745451756756
4.92
2.5371e-05
6.946e-08
d
yr
n .2002508195185299 2.8261e-09 deg/d
Q 3.061215840601826 2.8801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      6889 days (18.86 yr)  
   first obs. used      2002-04-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46337  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:36:39  

Additional Information
 Earth MOID = 1.74366 au 
 Jupiter MOID = 1.98669 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 16.05   n/a MPCxxxxx  

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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