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312277 (2008 AT111)
Classification: Main-belt Asteroid          SPK-ID: 2312277
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2555145064577619 9.7678e-08  
a 2.583398729074989 2.0964e-08 au
q 1.923302877831784 2.6167e-07 au
i 4.022353553084352 6.6438e-06 deg
node 351.5718813780206 0.00012355 deg
peri 74.05639525725742 0.00012869 deg
M 34.77121087686436 2.0738e-05 deg
tp 2458854.011712035870
(2020-Jan-05.51171204)
8.7583e-05 TDB
period 1516.650767608882
4.15
1.8461e-05
5.054e-08
d
yr
n .2373651256363837 2.8893e-09 deg/d
Q 3.243494580318193 2.6321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      7821 days (21.41 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:01  

Additional Information
 Earth MOID = .941505 au 
 Jupiter MOID = 2.10823 au 
 T_jup = 3.373 
[ 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 17.5   n/a MPO372914  

312277 (2008 AT111)          Discovered 2008-Jan-15 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 AT111 = 1998 QE59 = 1998 SF176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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