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(2011 AT55)
Classification: Outer Main-belt Asteroid          SPK-ID: 3555734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .359659509917849 5.1271e-07  
a 3.227897130337142 1.2689e-07 au
q 2.066953230374854 1.5851e-06 au
i 39.09608118166912 3.5336e-05 deg
node 137.3696794248829 2.06e-05 deg
peri 6.745108427415476 0.0003373 deg
M 210.420197612205 0.00014682 deg
tp 2459880.633212803231
(2022-Oct-28.13321280)
0.00086848 TDB
period 2118.253611458282
5.80
0.00012491
3.42e-07
d
yr
n .1699513212453173 1.0022e-08 deg/d
Q 4.388841030299429 1.7253e-07 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      2304 days (6.31 yr)  
   first obs. used      2011-01-04  
   last obs. used      2017-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42185  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-30 19:02:51  

Additional Information
 Earth MOID = 1.08253 au 
 Jupiter MOID = .669944 au 
 T_jup = 2.753 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO409380  

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