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100537 (1997 EL4)
Classification: Main-belt Asteroid          SPK-ID: 2100537
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995081195548545 6.052e-08  
a 3.19547497213535 2.1544e-08 au
q 2.557951769360025 1.9299e-07 au
i .787975047249716 5.7482e-06 deg
node 46.70758969538295 0.00034245 deg
peri 333.1086020700529 0.00034259 deg
M 206.9970101346023 1.0369e-05 deg
tp 2460087.245461204611
(2023-May-22.74546120)
6.4123e-05 TDB
period 2086.419136740379
5.71
2.11e-05
5.777e-08
d
yr
n .1725444296693087 1.745e-09 deg/d
Q 3.832998174910675 2.5843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8476 days (23.21 yr)  
   first obs. used      1997-03-02  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56504  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:40  

Additional Information
 Earth MOID = 1.55915 au 
 Jupiter MOID = 1.62993 au 
 T_jup = 3.164 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO474880  

100537 (1997 EL4)          Discovered 1997-Mar-02 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 EL4 = 2000 UC46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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