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JPL Small-Body Database Browser
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396593 (2001 HC)
Classification: Aten [NEO]          SPK-ID: 2396593
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 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4993474737627004 4.8431e-07  
a .8745908874089001 1.1954e-09 au
q .4378661372053875 4.237e-07 au
i 23.73709958721584 4.1669e-05 deg
node 32.60282298413839 7.9522e-06 deg
peri 28.18054268654654 1.7313e-05 deg
M 242.9080151877984 6.1876e-05 deg
tp 2459097.669622573785
(2020-Sep-05.16962257)
5.1321e-05 TDB
period 298.7485794409155
0.82
6.125e-07
1.677e-09
d
yr
n 1.205026650415248 2.4706e-09 deg/d
Q 1.311315637612413 1.7923e-09 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      6597 days (18.06 yr)  
   first obs. used      2001-04-16  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-04 05:17:41  

Additional Information
 Earth MOID = .104593 au 
 Jupiter MOID = 4.08793 au 
 T_jup = 6.600 
[ 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 19.0   n/a MPO177962  
rotation period rot_per 3.1881 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

396593 (2001 HC)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: Last Updated: 2014-06-16

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