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21325 (1997 AB6)
Classification: Main-belt Asteroid          SPK-ID: 2021325
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .06369009774257021 6.7202e-08  
a 2.26329705877609 1.8411e-08 AU
q 2.119147447882169 1.5864e-07 AU
i 3.507870919763906 6.3834e-06 deg
node 292.8474940421989 0.00010561 deg
peri 181.8233758606181 0.00012347 deg
M 58.07450802057514 5.8959e-05 deg
tp 2456799.870955868233
(2014-May-22.37095587)
0.00020445 JED
period 1243.686056915832
3.41
1.5175e-05
4.155e-08
d
yr
n .2894621178698022 3.5319e-09 deg/d
Q 2.407446669670011 1.9583e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      7384 days (20.22 yr)  
   first obs. used      1994-01-12  
   last obs. used      2014-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:57:57  

Additional Information
 Earth MOID = 1.13556 AU 
 T_jup = 3.613 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO266067  

21325 (1997 AB6)          Discovered 1997-Jan-02 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AB6 = 1998 KZ14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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