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312251 (2008 AP)
Classification: Main-belt Asteroid          SPK-ID: 2312251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06060847266606198 5.6813e-08  
a 2.699282740608895 3.2861e-08 au
q 2.535683336406728 1.595e-07 au
i 10.53751047130403 6.3925e-06 deg
node 99.45134871978659 3.473e-05 deg
peri 352.965462204015 6.6928e-05 deg
M 311.6885260106276 5.978e-05 deg
tp 2459217.879597794347
(2021-Jan-03.37959779)
0.00027068 TDB
period 1619.835801805173
4.43
2.958e-05
8.099e-08
d
yr
n .222244748263256 4.0584e-09 deg/d
Q 2.862882144811063 3.4853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6653 days (18.21 yr)  
   first obs. used      2001-07-18  
   last obs. used      2019-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59624  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:09:18  

Additional Information
 Earth MOID = 1.55273 au 
 Jupiter MOID = 2.27546 au 
 T_jup = 3.341 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO450243  

312251 (2008 AP)          Discovered 2008-Jan-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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