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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170102844209177 6.8027e-08  
a 2.646111942718629 2.3069e-08 AU
q 2.336489631691535 1.7513e-07 AU
i 12.55682915469408 6.873e-06 deg
node 120.4504456830962 4.0965e-05 deg
peri 40.39350749875116 5.6399e-05 deg
M 83.86090748959704 3.8597e-05 deg
tp 2456634.258289896362
(2013-Dec-07.75828990)
0.00016728 JED
period 1572.210694877887
4.30
2.056e-05
5.629e-08
d
yr
n .2289769438490946 2.9943e-09 deg/d
Q 2.955734253745723 2.5768e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      8548 days (23.40 yr)  
   first obs. used      1992-01-26  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51501  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:28:51  

Additional Information
 Earth MOID = 1.3618 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 14.2 mag n/a MPO257019  

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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