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312581 (2009 HG80)
Classification: Main-belt Asteroid          SPK-ID: 2312581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02800160384298354 4.976e-08  
a 2.542094771535594 2.6198e-08 au
q 2.470912040811734 1.3201e-07 au
i 5.710687986463435 5.182e-06 deg
node 67.46909483674163 5.2863e-05 deg
peri 163.7055880727692 0.0001098 deg
M 240.5927435291406 9.9939e-05 deg
tp 2459491.537038944532
(2021-Oct-04.03703894)
0.00041435 TDB
period 1480.423713303989
4.05
2.2885e-05
6.266e-08
d
yr
n .243173624392004 3.7591e-09 deg/d
Q 2.613277502259453 2.6932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      6776 days (18.55 yr)  
   first obs. used      2001-05-15  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 19:05:20  

Additional Information
 Earth MOID = 1.45959 au 
 Jupiter MOID = 2.35984 au 
 T_jup = 3.437 
[ 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 16.8   n/a MPO455304  

312581 (2009 HG80)          Discovered 2009-Apr-28 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2009 HG80 = 2007 YF48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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