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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1169708331881318 6.933e-08  
a 2.645692352937963 2.3749e-08 AU
q 2.336223514055341 1.7964e-07 AU
i 12.55677121192038 6.9387e-06 deg
node 120.4514215142646 4.6956e-05 deg
peri 40.31911282527188 6.5429e-05 deg
M 38.13169275257852 4.3617e-05 deg
tp 2456634.008899419815
(2013-Dec-07.50889942)
0.00019015 JED
period 1571.836755262159
4.30
2.1165e-05
5.795e-08
d
yr
n .2290314174132907 3.0839e-09 deg/d
Q 2.955161191820586 2.6527e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8197 days (22.44 yr)  
   first obs. used      1992-01-26  
   last obs. used      2014-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52769  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:46:26  

Additional Information
 Earth MOID = 1.36113 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 (327)
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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