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85148 (1981 EH39)
Classification: Main-belt Asteroid          SPK-ID: 2085148
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277933666933098 4.002e-08  
a 2.427918590835431 1.1125e-08 au
q 2.117646700055295 9.5931e-08 au
i 2.930449738910188 5.2827e-06 deg
node 317.6829160185588 9.9263e-05 deg
peri 285.4452793698135 0.00010224 deg
M 178.5014754664627 2.4328e-05 deg
tp 2458711.344864582730
(2019-Aug-15.84486458)
9.3073e-05 TDB
period 1381.814061232001
3.78
9.4975e-06
2.6e-08
d
yr
n .2605270926820867 1.7907e-09 deg/d
Q 2.738190481615567 1.2547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      14554 days (39.85 yr)  
   first obs. used      1981-03-02  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:11:31  

Additional Information
 Earth MOID = 1.10719 au 
 Jupiter MOID = 2.28302 au 
 T_jup = 3.496 
[ 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 16.78   n/a E2021B10  

85148 (1981 EH39)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1981 EH39 = 2000 FN62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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