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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06413715366193642 3.5256e-08  
a 2.263409457024265 7.7816e-09 au
q 2.11824081687922 8.017e-08 au
i 3.510031511806704 3.9694e-06 deg
node 292.7838105068653 6.7305e-05 deg
peri 182.4107239979132 7.5146e-05 deg
M 334.2853400548021 3.4287e-05 deg
tp 2459289.342628848814
(2021-Mar-15.84262885)
0.00011857 TDB
period 1243.77870264413
3.41
6.4142e-06
1.756e-08
d
yr
n .2894405566156435 1.4926e-09 deg/d
Q 2.408578097169311 8.2807e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1400  
   data-arc span      9867 days (27.01 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53853  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:01  

Additional Information
 Earth MOID = 1.13451 au 
 Jupiter MOID = 2.63716 au 
 T_jup = 3.613 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.04   n/a E2021B10  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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