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JPL Small-Body Database Browser
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100746 (1998 ED4)
Classification: Main-belt Asteroid          SPK-ID: 2100746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694898770040352 7.7844e-08  
a 2.310394637067141 1.1312e-08 au
q 1.918806134199849 1.8384e-07 au
i 2.499023469219741 5.4963e-06 deg
node 131.9321363416627 0.0001447 deg
peri 90.42419606277511 0.00014619 deg
M 82.49563372378314 2.4028e-05 deg
tp 2458706.561725175445
(2019-Aug-11.06172518)
8.4415e-05 TDB
period 1282.707631426231
3.51
9.4203e-06
2.579e-08
d
yr
n .2806563172932239 2.0612e-09 deg/d
Q 2.701983139934433 1.3229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      9747 days (26.69 yr)  
   first obs. used      1992-09-23  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:10:33  

Additional Information
 Earth MOID = .912246 au 
 Jupiter MOID = 2.27508 au 
 T_jup = 3.564 
[ 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 16.5   n/a MPO474882  

100746 (1998 ED4)          Discovered 1998-Mar-02 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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