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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718442369601662 8.4604e-08  
a 2.609250863147556 3.4247e-08 AU
q 2.160866139532309 2.4216e-07 AU
i 3.541593721090267 7.7558e-06 deg
node 319.7061829787424 0.00010504 deg
peri 88.85788737075735 0.00011144 deg
M 51.18895156297807 4.2318e-05 deg
tp 2456781.599922987262
(2014-May-04.09992299)
0.00017741 JED
period 1539.473369124047
4.21
3.0309e-05
8.298e-08
d
yr
n .2338462017078205 4.6039e-09 deg/d
Q 3.057635586762803 4.0132e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      1996-08-09  
   last obs. used      2013-12-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54722  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 09:55:47  

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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