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58681 (1998 AJ7)
Classification: Main-belt Asteroid          SPK-ID: 2058681
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728418064104603 4.5749e-08  
a 2.608091140214955 1.9452e-08 au
q 2.157303956257085 1.2217e-07 au
i 3.539484202093145 7.0588e-06 deg
node 319.6855196095555 8.0332e-05 deg
peri 88.74000112872764 8.5148e-05 deg
M 144.8012754746748 2.7999e-05 deg
tp 2456781.696930673849
(2014-May-04.19693067)
0.00011577 JED
period 1538.447118142795
4.21
1.7212e-05
4.712e-08
d
yr
n .2340021933510396 2.618e-09 deg/d
Q 3.058878324172825 2.2815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      6839 days (18.72 yr)  
   first obs. used      1996-08-09  
   last obs. used      2015-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:08:03  

Additional Information
 Earth MOID = 1.16966 au 
 Jupiter MOID = 2.33945 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO324826  

58681 (1998 AJ7)          Discovered 1998-Jan-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 AJ7 = 1997 YJ20 = 2001 TQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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