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305294 (2008 AA8)
Classification: Main-belt Asteroid          SPK-ID: 2305294
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04040893486815478 7.3304e-08  
a 2.780339982089836 3.8534e-08 au
q 2.667989404842241 2.0691e-07 au
i 2.855826654737067 9.8404e-06 deg
node 138.4025301691051 0.00018331 deg
peri 304.3115578981799 0.00023911 deg
M 278.7645161556424 0.00015848 deg
tp 2459382.610133395748
(2021-Jun-17.11013340)
0.00074958 TDB
period 1693.344355356158
4.64
3.5204e-05
9.638e-08
d
yr
n .2125970413881245 4.4198e-09 deg/d
Q 2.892690559337431 4.0091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      6498 days (17.79 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:34  

Additional Information
 Earth MOID = 1.68527 au 
 Jupiter MOID = 2.18955 au 
 T_jup = 3.330 
[ 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 16.9   n/a MPO440438  

305294 (2008 AA8)          Discovered 2008-Jan-10 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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