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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718442880360277 4.607e-08  
a 2.609250842930085 1.9302e-08 AU
q 2.16086598951936 1.2303e-07 AU
i 3.541593018634313 7.0616e-06 deg
node 319.706171653496 8.1314e-05 deg
peri 88.85788110098922 8.6141e-05 deg
M 51.18897404566532 2.7676e-05 deg
tp 2456781.599829388395
(2014-May-04.09982939)
0.00011702 JED
period 1539.473351231407
4.21
1.7082e-05
4.677e-08
d
yr
n .2338462044257149 2.5948e-09 deg/d
Q 3.057635696340811 2.2619e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      808  
   data-arc span      6772 days (18.54 yr)  
   first obs. used      1996-08-09  
   last obs. used      2015-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5108  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:54:17  

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 14.9 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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