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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457315.5 (2015-Oct-20.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0579478067106919 5.321e-08  
q 2.075831949486128 1.1841e-07 au
tp 2456897.176382233466
(2014-Aug-27.67638223)
0.00020355 TDB
node 105.4406175099187 8.1007e-05 deg
peri 18.81765049398068 0.00010144 deg
i 4.949609304836251 4.6322e-06 deg
  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
 Jupiter MOID = 2.68787 au 
 T_jup = 3.656 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.831327140751873E-15 -6.213886442705393E-15 5.425690772649992E-12 -7.171534322070489E-15 1.541437180629388E-12 -4.42728317660175E-15
q -6.213886442705393E-15 1.4021422651645E-14 -1.168794904600775E-11 1.766744221360475E-14 -3.286906629278429E-12 1.039621301492608E-14
tp 5.425690772649992E-12 -1.168794904600775E-11 4.143184726066576E-8 -1.480628780813655E-10 1.247679386898602E-8 -2.704558403012674E-11
node -7.171534322070489E-15 1.766744221360475E-14 -1.480628780813655E-10 6.562162987355635E-9 -6.581805166847372E-9 8.561088391221731E-11
peri 1.541437180629388E-12 -3.286906629278429E-12 1.247679386898602E-8 -6.581805166847372E-9 1.029033062480038E-8 -9.319675875588671E-11
i -4.42728317660175E-15 1.039621301492608E-14 -2.704558403012674E-11 8.561088391221731E-11 -9.319675875588671E-11 2.145683074454873E-11

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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