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JPL Small-Body Database Browser
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39878 (1998 EH8)
Classification: Main-belt Asteroid          SPK-ID: 2039878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778416989407232 3.6961e-08  
a 2.44612362352127 9.8108e-09 au
q 2.011100842495209 9.1998e-08 au
i 1.646116198622404 5.8273e-06 deg
node 352.5515881542333 0.00013087 deg
peri 107.3225674998836 0.00013201 deg
M 240.8636201989127 1.6141e-05 deg
tp 2459062.942699758949
(2020-Aug-01.44269976)
6.3486e-05 TDB
period 1397.384847442732
3.83
8.4068e-06
2.302e-08
d
yr
n .2576240902130962 1.5499e-09 deg/d
Q 2.881146404547331 1.1556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      8451 days (23.14 yr)  
   first obs. used      1996-09-08  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57822  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:49:17  

Additional Information
 Earth MOID = 1.02884 au 
 Jupiter MOID = 2.27586 au 
 T_jup = 3.476 
[ 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 16.0   n/a MPO400387  

39878 (1998 EH8)          Discovered 1998-Mar-02 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EH8 = 2000 SL109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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