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382168 (2012 HP79)
Classification: Outer Main-belt Asteroid          SPK-ID: 2382168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2178000366793201 9.5358e-08  
a 3.224067506227041 7.3024e-08 au
q 2.521865485114188 2.673e-07 au
i 26.41574493090866 2.0263e-05 deg
node 57.15554367834577 2.3274e-05 deg
peri 257.7823687736403 9.2367e-05 deg
M 121.4796226283167 7.8212e-05 deg
tp 2458486.980987100071
(2019-Jan-03.48098710)
0.00045025 TDB
period 2114.485039436559
5.79
7.1839e-05
1.967e-07
d
yr
n .1702542194840633 5.7843e-09 deg/d
Q 3.926269527339895 8.8929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      4522 days (12.38 yr)  
   first obs. used      2007-08-11  
   last obs. used      2019-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57035  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:53:07  

Additional Information
 Earth MOID = 1.65119 au 
 Jupiter MOID = 1.73328 au 
 T_jup = 2.990 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457713.5 (2016-Nov-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2200756156912659 9.6285e-08  
q 2.514304489272992 2.704e-07 au
tp 2458485.088637189197
(2019-Jan-01.58863719)
0.00044283 TDB
node 57.24037210365158 2.3368e-05 deg
peri 257.5213401393556 9.1098e-05 deg
i 26.38153823882474 2.0281e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      4522 days (12.38 yr)  
   first obs. used      2007-08-11  
   last obs. used      2019-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57035  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:53:07  

Additional Information
 Jupiter MOID = 1.73328 au 
 T_jup = 2.990 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.270821096120658E-15 -2.577464675018071E-14 1.818200397182136E-11 1.238613504810449E-14 2.880918561166026E-12 -1.139732000390916E-13
q -2.577464675018071E-14 7.311852254497403E-14 -4.707980084169049E-11 7.632261635450351E-16 -7.453951738880795E-12 2.694008781840595E-13
tp 1.818200397182136E-11 -4.707980084169049E-11 1.96097667150249E-7 4.298568468878778E-10 3.895774124566436E-8 -1.366340306185642E-9
node 1.238613504810449E-14 7.632261635450351E-16 4.298568468878778E-10 5.460758776503964E-10 -3.990994488654027E-10 -3.503212841205796E-10
peri 2.880918561166026E-12 -7.453951738880795E-12 3.895774124566436E-8 -3.990994488654027E-10 8.298842308142147E-9 3.50070172170614E-11
i -1.139732000390916E-13 2.694008781840595E-13 -1.366340306185642E-9 -3.503212841205796E-10 3.50070172170614E-11 4.11326437024259E-10

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 15.9   n/a MPO503463  

382168 (2012 HP79)          Discovered 2008-Oct-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

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