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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06349813277082798 4.8396e-08  
a 2.263345754832796 1.3761e-08 au
q 2.119627525586133 1.0724e-07 au
i 3.507684784458369 5.2554e-06 deg
node 292.8453947472997 0.00010331 deg
peri 181.8010468996935 0.00011734 deg
M 173.9013742426136 5.3781e-05 deg
tp 2456799.706404190724
(2014-May-22.20640419)
0.00018606 JED
period 1243.726194995989
3.41
1.1342e-05
3.105e-08
d
yr
n .2894527762207027 2.6397e-09 deg/d
Q 2.407063984079459 1.4634e-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 = 1.13595 au 
 Jupiter MOID = 2.64557 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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