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312271 (2008 AO90)
Classification: Main-belt Asteroid          SPK-ID: 2312271
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 .1299334207661906 5.6534e-08  
a 2.638173334096274 2.3593e-08 au
q 2.295386448222999 1.5096e-07 au
i 4.702549589282295 5.4246e-06 deg
node 139.6063514837705 6.5646e-05 deg
peri 44.45923239202184 6.762e-05 deg
M 264.6285838113881 1.7953e-05 deg
tp 2459415.138044046968
(2021-Jul-19.63804405)
8.0302e-05 TDB
period 1565.140812858483
4.29
2.0996e-05
5.748e-08
d
yr
n .2300112533277544 3.0855e-09 deg/d
Q 2.980960219969549 2.6659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      5763 days (15.78 yr)  
   first obs. used      2004-02-17  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53951  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:31:43  

Additional Information
 Earth MOID = 1.30066 au 
 Jupiter MOID = 1.98065 au 
 T_jup = 3.380 
[ 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 17.0   n/a MPO455301  

312271 (2008 AO90)          Discovered 2008-Jan-13 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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