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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733529457176397 3.0413e-08  
a 2.607620100741932 1.2173e-08 au
q 2.15558147496579 7.9246e-08 au
i 3.53921503284745 4.9738e-06 deg
node 319.6530087631252 5.7123e-05 deg
peri 88.54807940166054 5.9465e-05 deg
M 65.92021785294907 1.658e-05 deg
tp 2458318.868621943116
(2018-Jul-19.36862194)
6.9869e-05 TDB
period 1538.030355522295
4.21
1.077e-05
2.949e-08
d
yr
n .2340656013110669 1.639e-09 deg/d
Q 3.059658726518075 1.4283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1146  
   data-arc span      8321 days (22.78 yr)  
   first obs. used      1996-08-09  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50985  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:35:48  

Additional Information
 Earth MOID = 1.1686 au 
 Jupiter MOID = 2.33433 au 
 T_jup = 3.387 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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