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379894 (2012 HN80)
Classification: Main-belt Asteroid          SPK-ID: 2379894
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05841123771978661 5.3559e-08  
a 2.203445827978929 2.0739e-08 au
q 2.07473982991818 1.1928e-07 au
i 4.951183965916811 4.6347e-06 deg
node 105.4143762061648 8.095e-05 deg
peri 19.42439892916437 0.00010087 deg
M 273.0540093975417 6.1677e-05 deg
tp 2459289.035366077640
(2021-Mar-15.53536608)
0.00020556 TDB
period 1194.681101085915
3.27
1.6867e-05
4.618e-08
d
yr
n .3013356448618591 4.2543e-09 deg/d
Q 2.332151826039678 2.195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      5787 days (15.84 yr)  
   first obs. used      2003-09-21  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60697  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:38  

Additional Information
 Earth MOID = 1.09105 au 
 Jupiter MOID = 2.68787 au 
 T_jup = 3.656 
[ 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 17.9   n/a MPO437556  

379894 (2012 HN80)          Discovered 2008-Jan-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1953-Dec-07 18:59 00:07 Thisb 0.0458329795949731 0.0458076732124548 0.0458582976283533 4.21335195785945 4.21335192255179 2434719.290802226 6.73728242567137 1709.05268696836 60.2023994775484 -42.4585615385199 76899.8929437906 T 12 CATAB v2.0f-lin.ifort 2019-Sep-24 06:57:40 2019-Sep-24 06:57
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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