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72253 (2001 AT31)
Classification: Main-belt Asteroid          SPK-ID: 2072253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785471241507751 3.6271e-08  
a 2.293881635020498 8.0423e-09 au
q 1.88431566594531 8.3393e-08 au
i 3.672871559895936 4.8124e-06 deg
node 342.1540493279335 5.2606e-05 deg
peri 62.98589579983435 5.4991e-05 deg
M 307.8515220418177 1.4952e-05 deg
tp 2459384.320553748414
(2021-Jun-18.82055375)
5.3184e-05 TDB
period 1268.980456198449
3.47
6.6735e-06
1.827e-08
d
yr
n .2836923123926359 1.4919e-09 deg/d
Q 2.703447604095687 9.4782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      10713 days (29.33 yr)  
   first obs. used      1991-03-14  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:01:03  

Additional Information
 Earth MOID = .895831 au 
 Jupiter MOID = 2.69803 au 
 T_jup = 3.572 
[ 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 16.0   n/a MPO267927  

72253 (2001 AT31)          Discovered 2001-Jan-04 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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