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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718442351403947 7.5745e-08  
a 2.609250863905029 3.0607e-08 AU
q 2.160866144907855 2.1519e-07 AU
i 3.54159423669028 7.635e-06 deg
node 319.7061897621059 0.00010354 deg
peri 88.85788144261338 0.000109 deg
M 51.18895056276502 3.8098e-05 deg
tp 2456781.599927169168
(2014-May-04.09992717)
0.00015991 JED
period 1539.473369794417
4.21
2.7088e-05
7.416e-08
d
yr
n .2338462016059912 4.1146e-09 deg/d
Q 3.057635582902202 3.5867e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      6628 days (18.15 yr)  
   first obs. used      1996-08-09  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54512  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:57:04  

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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