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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170102956050552 6.7198e-08  
a 2.646111938580093 2.2683e-08 AU
q 2.336489598442771 1.7224e-07 AU
i 12.55682851211313 6.8133e-06 deg
node 120.4504577616954 3.4678e-05 deg
peri 40.39351580499857 4.8325e-05 deg
M 83.86089109580787 3.4972e-05 deg
tp 2456634.258362351376
(2013-Dec-07.75836235)
0.00015091 JED
period 1572.210691189466
4.30
2.0216e-05
5.535e-08
d
yr
n .2289769443862767 2.9442e-09 deg/d
Q 2.955734278717415 2.5337e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      646  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1992-01-26  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:56:57  

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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