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43964 (1997 EF23)
Classification: Main-belt Asteroid          SPK-ID: 2043964
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09272068125179603 3.3804e-08  
a 2.242270499502391 6.7347e-09 au
q 2.034365651237724 7.647e-08 au
i 6.790615381716584 4.679e-06 deg
node 331.7017321971107 2.9444e-05 deg
peri 80.86677724447334 3.9922e-05 deg
M 88.51588118448309 2.5502e-05 deg
tp 2458898.957085572049
(2020-Feb-19.45708557)
8.686e-05 TDB
period 1226.395170464531
3.36
5.5252e-06
1.513e-08
d
yr
n .2935432303305957 1.3225e-09 deg/d
Q 2.450175347767058 7.3591e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      9847 days (26.96 yr)  
   first obs. used      1994-04-07  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:28:04  

Additional Information
 Earth MOID = 1.05689 au 
 Jupiter MOID = 2.80936 au 
 T_jup = 3.619 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.55   n/a MPCxxxxx  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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