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305627 (2009 AO45)
Classification: Main-belt Asteroid          SPK-ID: 2305627
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09244235393604655 5.4154e-08  
a 3.16593508132889 4.4104e-08 au
q 2.873268590002138 1.7413e-07 au
i 10.1787441758634 8.0575e-06 deg
node 181.7894865206933 2.9899e-05 deg
peri 60.87321106813612 5.1218e-05 deg
M 305.0913727137386 4.3128e-05 deg
tp 2459314.326432919759
(2021-Apr-09.82643292)
0.00024898 TDB
period 2057.554913221831
5.63
4.2995e-05
1.177e-07
d
yr
n .1749649536382446 3.6561e-09 deg/d
Q 3.458601572655642 4.8181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7952 days (21.77 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:26  

Additional Information
 Earth MOID = 1.87903 au 
 Jupiter MOID = 1.5813 au 
 T_jup = 3.172 
[ 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 15.8   n/a MPO427633  

305627 (2009 AO45)          Discovered 2009-Jan-02 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 AO45 = 1998 HF42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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