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359974 (2012 HS2)
Classification: Jupiter Trojan          SPK-ID: 2359974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1204624772484303 1.0068e-07  
a 5.251965986071932 3.4107e-07 au
q 4.619301152965212 7.8151e-07 au
i 19.19778022968823 1.2281e-05 deg
node 323.872750336137 2.2997e-05 deg
peri 78.17177967894956 6.9536e-05 deg
M 307.1796089808307 7.7601e-05 deg
tp 2459645.530714704583
(2022-Mar-07.03071470)
0.00099399 TDB
period 4396.238892085765
12.04
0.00042824
1.172e-06
d
yr
n .08188817960918418 7.9768e-09 deg/d
Q 5.884630819178652 3.8215e-07 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-02-13  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52784  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:19  

Additional Information
 Earth MOID = 3.69206 au 
 Jupiter MOID = .0337827 au 
 T_jup = 2.875 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO434270  

359974 (2012 HS2)          Discovered 2011-Dec-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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