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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457652.5 (2016-Sep-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05415422568452478 7.3225e-08  
q 3.044959689653513 2.2035e-07 au
tp 2458261.454573411315
(2018-May-22.95457341)
0.00035935 TDB
node 195.4219346506983 1.0869e-05 deg
peri 212.059312407881 6.3092e-05 deg
i 32.28242482070374 8.1666e-06 deg
  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
 Jupiter MOID = 1.89024 au 
 T_jup = 2.944 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.361933199371829E-15 -1.575871113642518E-14 -8.284712975853664E-12 2.366377924441297E-15 -1.614490669458997E-12 -8.006900900448724E-15
q -1.575871113642518E-14 4.855562354269562E-14 2.489730149278894E-11 -8.255556719844789E-15 4.71315976692755E-12 3.073881066797328E-14
tp -8.284712975853664E-12 2.489730149278894E-11 1.291342148276257E-7 1.848880383381313E-11 2.232917523082821E-8 -5.808528998540308E-11
node 2.366377924441297E-15 -8.255556719844789E-15 1.848880383381313E-11 1.181283444016097E-10 -9.596725614729911E-11 -5.240642327663903E-12
peri -1.614490669458997E-12 4.71315976692755E-12 2.232917523082821E-8 -9.596725614729911E-11 3.98061224182152E-9 -5.631240539446243E-12
i -8.006900900448724E-15 3.073881066797328E-14 -5.808528998540308E-11 -5.240642327663903E-12 -5.631240539446243E-12 6.669266540432941E-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 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

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