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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0633649157036635 4.8389e-08  
a 2.263602223118968 1.3788e-08 au
q 2.120169259064409 1.0723e-07 au
i 3.507279453667575 5.255e-06 deg
node 292.8425375704484 0.00010333 deg
peri 181.809454182795 0.00011741 deg
M 231.775108363883 5.3885e-05 deg
tp 2458043.566010285700
(2017-Oct-17.06601029)
0.00018614 JED
period 1243.937597978244
3.41
1.1366e-05
3.112e-08
d
yr
n .2894035847015987 2.6442e-09 deg/d
Q 2.407035187173526 1.4662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      7875 days (21.56 yr)  
   first obs. used      1994-01-12  
   last obs. used      2015-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56293  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:56:54  

Additional Information
 Earth MOID = 1.13508 au 
 Jupiter MOID = 2.64503 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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