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379870 (2012 HA26)
Classification: Main-belt Asteroid          SPK-ID: 2379870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3029653937446592 6.3827e-08  
a 3.086132302896879 5.3276e-08 au
q 2.151141014601614 1.883e-07 au
i 16.77269209199365 6.8043e-06 deg
node 99.66639514044795 2.1717e-05 deg
peri 217.994078151885 2.495e-05 deg
M 119.3040272140021 8.4783e-06 deg
tp 2458344.244674681440
(2018-Aug-13.74467468)
4.8882e-05 TDB
period 1980.250982566613
5.42
5.1278e-05
1.404e-07
d
yr
n .1817951376715906 4.7075e-09 deg/d
Q 4.021123591192144 6.9417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      4105 days (11.24 yr)  
   first obs. used      2008-10-27  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:14:38  

Additional Information
 Earth MOID = 1.16127 au 
 Jupiter MOID = 1.39084 au 
 T_jup = 3.091 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457527.5 (2016-May-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .304907409212055 6.4102e-08  
q 2.144561174748632 1.8958e-07 au
tp 2458342.209820854305
(2018-Aug-11.70982085)
4.8072e-05 TDB
node 99.98543681653668 2.1723e-05 deg
peri 217.5305584911265 2.4808e-05 deg
i 16.7794810434056 6.8063e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      4105 days (11.24 yr)  
   first obs. used      2008-10-27  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:14:38  

Additional Information
 Jupiter MOID = 1.39084 au 
 T_jup = 3.091 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.109129843531969E-15 -1.195223578569582E-14 2.424331572563793E-14 1.871032673368507E-14 1.729020728534216E-14 -4.688950585930729E-15
q -1.195223578569582E-14 3.594211071358397E-14 -5.461438110360723E-13 -5.367229645458958E-14 -2.824269025752481E-13 1.226824638082472E-14
tp 2.424331572563793E-14 -5.461438110360723E-13 2.310878371140106E-9 1.340161036315614E-11 5.934871558289317E-10 1.150381081793113E-11
node 1.871032673368507E-14 -5.367229645458958E-14 1.340161036315614E-11 4.718815319641969E-10 -4.471793011345135E-10 1.868922041440658E-11
peri 1.729020728534216E-14 -2.824269025752481E-13 5.934871558289317E-10 -4.471793011345135E-10 6.154536180053883E-10 -1.610120127301519E-11
i -4.688950585930729E-15 1.226824638082472E-14 1.150381081793113E-11 1.868922041440658E-11 -1.610120127301519E-11 4.632614732122077E-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 15.6   n/a MPO455733  

379870 (2012 HA26)          Discovered 2008-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

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