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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06369007518762379 4.8399e-08  
a 2.26329706348954 1.3845e-08 AU
q 2.119147503343963 1.0733e-07 AU
i 3.507868352057729 5.2561e-06 deg
node 292.8474898457222 0.00010332 deg
peri 181.8233623133686 0.00011727 deg
M 58.07452235629695 5.3663e-05 deg
tp 2456799.870905716119
(2014-May-22.37090572)
0.00018549 JED
period 1243.686060800906
3.41
1.1412e-05
3.124e-08
d
yr
n .2894621169655693 2.6561e-09 deg/d
Q 2.407446623635117 1.4727e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      7799 days (21.35 yr)  
   first obs. used      1994-01-12  
   last obs. used      2015-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56487  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:39:19  

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 15.0 mag n/a MPO337438  

21325 (1997 AB6)          Discovered 1997-Jan-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
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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