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305345 (2008 AS129)
Classification: Main-belt Asteroid          SPK-ID: 2305345
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 .05284615846076776 4.9129e-08  
a 2.941490235499023 2.9974e-08 au
q 2.786043776403041 1.407e-07 au
i 1.723861980590491 5.568e-06 deg
node 21.29722974629745 0.00018756 deg
peri 140.5643571986041 0.00019632 deg
M 143.0355043079165 5.7671e-05 deg
tp 2458268.365463186372
(2018-May-29.86546319)
0.00029453 TDB
period 1842.678393229662
5.04
2.8165e-05
7.711e-08
d
yr
n .1953677870879183 2.9862e-09 deg/d
Q 3.096936694595006 3.1558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      8212 days (22.48 yr)  
   first obs. used      1996-12-15  
   last obs. used      2019-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:53:46  

Additional Information
 Earth MOID = 1.79405 au 
 Jupiter MOID = 1.87239 au 
 T_jup = 3.270 
[ 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 16.0   n/a MPO437356  

305345 (2008 AS129)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AS129 = 1998 DD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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