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305973 (2009 HH80)
Classification: Outer Main-belt Asteroid          SPK-ID: 2305973
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0542251405973592 7.3642e-08  
a 3.218887261015482 5.474e-08 au
q 3.044342646719869 2.2156e-07 au
i 32.28317369273405 8.1665e-06 deg
node 195.399859924998 1.0869e-05 deg
peri 210.92157529437 6.2487e-05 deg
M 127.141910470763 6.0576e-05 deg
tp 2458255.522239260565
(2018-May-17.02223926)
0.00035605 TDB
period 2109.390938622626
5.78
5.3808e-05
1.473e-07
d
yr
n .1706653771040991 4.3535e-09 deg/d
Q 3.393431875311095 5.7708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      6239 days (17.08 yr)  
   first obs. used      2003-03-28  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56432  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:02:01  

Additional Information
 Earth MOID = 2.06423 au 
 Jupiter MOID = 1.89024 au 
 T_jup = 2.944 
[ 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 14.8   n/a MPO338964  

305973 (2009 HH80)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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