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85318 (1995 DX4)
Classification: Main-belt Asteroid          SPK-ID: 2085318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02273378875093102 5.7567e-08  
a 2.623620715860778 1.9844e-08 au
q 2.563975876743833 1.5045e-07 au
i 10.94367235631936 7.3085e-06 deg
node 316.0581449058719 2.7482e-05 deg
peri 258.1554923650219 0.00018035 deg
M 271.9606618204904 0.00018197 deg
tp 2459380.098311837206
(2021-Jun-14.59831184)
0.00078538 TDB
period 1552.208309230563
4.25
1.761e-05
4.821e-08
d
yr
n .2319276335909152 2.6313e-09 deg/d
Q 2.683265554977723 2.0295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      9097 days (24.91 yr)  
   first obs. used      1995-02-07  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 13:19:16  

Additional Information
 Earth MOID = 1.58575 au 
 Jupiter MOID = 2.35322 au 
 T_jup = 3.377 
[ 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 15.5   n/a MPO468822  

85318 (1995 DX4)          Discovered 1995-Feb-21 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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