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21345 (1997 ED3)
Classification: Main-belt Asteroid          SPK-ID: 2021345
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1169885074427999 6.713e-08  
a 2.646653057128151 2.2685e-08 au
q 2.337025066255805 1.72e-07 au
i 12.55578376455263 6.7711e-06 deg
node 120.449661830583 3.3343e-05 deg
peri 40.52430656961938 4.6657e-05 deg
M 175.2857765411968 3.4807e-05 deg
tp 2456634.748026390989
(2013-Dec-08.24802639)
0.00014789 JED
period 1572.692981363801
4.31
2.022e-05
5.536e-08
d
yr
n .2289067251306843 2.943e-09 deg/d
Q 2.956281048000497 2.5339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      8663 days (23.72 yr)  
   first obs. used      1992-01-26  
   last obs. used      2015-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:46:58  

Additional Information
 Earth MOID = 1.36189 au 
 Jupiter MOID = 2.0923 au 
 T_jup = 3.349 
[ 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 14.4 mag n/a MPO344470  

21345 (1997 ED3)          Discovered 1997-Mar-03 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 ED3 = 1992 BB3 = 1999 VW87 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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