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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06369008583379916 5.7148e-08  
a 2.263297060659762 1.6025e-08 AU
q 2.119147476598957 1.3171e-07 AU
i 3.507868867198471 6.0066e-06 deg
node 292.8474920771731 0.00010519 deg
peri 181.8233685396818 0.00012093 deg
M 58.07451592874275 5.6367e-05 deg
tp 2456799.870928297551
(2014-May-22.37092830)
0.00019516 JED
period 1243.686058468454
3.41
1.3208e-05
3.616e-08
d
yr
n .2894621175084367 3.0742e-09 deg/d
Q 2.407446644720568 1.7045e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      7747 days (21.21 yr)  
   first obs. used      1994-01-12  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57292  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:08:53  

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
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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