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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718442622982054 6.873e-08  
a 2.609250853028879 2.7822e-08 AU
q 2.160866065039168 1.9375e-07 AU
i 3.541593965449714 7.497e-06 deg
node 319.7061859841486 0.00010137 deg
peri 88.85787496448418 0.00010637 deg
M 51.18896331978839 3.5078e-05 deg
tp 2456781.599873984781
(2014-May-04.09987398)
0.00014741 JED
period 1539.473360168929
4.21
2.4623e-05
6.741e-08
d
yr
n .2338462030681042 3.7402e-09 deg/d
Q 3.05763564101859 3.2603e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      6654 days (18.22 yr)  
   first obs. used      1996-08-09  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55487  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:46:50  

Additional Information
 Earth MOID = 1.17409 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 14.8 mag n/a MPO267893  

58681 (1998 AJ7)          Discovered 1998-Jan-05 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
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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