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43964 (1997 EF23)
Classification: Main-belt Asteroid          SPK-ID: 2043964
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0928258282892919 4.8074e-08  
a 2.241759719685873 1.3935e-08 AU
q 2.033666516880461 1.0546e-07 AU
i 6.792488234682577 1.0458e-05 deg
node 331.8012693752733 4.3266e-05 deg
peri 80.2492548553812 7.5324e-05 deg
M 163.2610288892733 6.0764e-05 deg
tp 2456444.516315362084
(2013-Jun-01.01631536)
0.000206 JED
period 1225.976142814818
3.36
1.1431e-05
3.13e-08
d
yr
n .2936435607739044 2.738e-09 deg/d
Q 2.449852922491286 1.5229e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      774  
   data-arc span      7355 days (20.14 yr)  
   first obs. used      1994-04-07  
   last obs. used      2014-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58226  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:14:06  

Additional Information
 Earth MOID = 1.0565 AU 
 T_jup = 3.619 
[ 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 14.5 mag n/a MPO296467  

43964 (1997 EF23)          Discovered 1997-Mar-07 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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