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(2014 HN178)
Classification: Amor [NEO]          SPK-ID: 3670140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4586842315011273 3.7239e-05  
a 1.888432392742634 0.00013019 au
q 1.022238231935644 1.8264e-07 au
i 2.383999684736266 0.00015196 deg
node 333.7015449625618 0.0008889 deg
peri 306.0406859633408 0.00080291 deg
M 101.6768523146362 0.085404 deg
tp 2458732.786555953425
(2019-Sep-06.28655595)
0.19718 TDB
period 947.8739522593747
2.60
0.098017
0.0002684
d
yr
n .379797333961858 3.9274e-05 deg/d
Q 2.754626553549624 0.0001899 au
  Orbit Determination Parameters
   # obs. used (total)      46  
   data-arc span      142 days  
   first obs. used      2014-04-28  
   last obs. used      2014-09-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .30241  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:05:43  

Additional Information
 Earth MOID = .0313561 au 
 Jupiter MOID = 2.4145 au 
 T_jup = 3.825 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.5   n/a E2014M01  
rotation period rot_per 0.0367 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Moskovitz, N.A.; Binzel, R.P.; Christensen, E.J.; et al. (2018) Astrophys. J. Supp. Series 2391, A4.]

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