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85142 (1981 EO29)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1943304220081236 6.4313e-08  
a 3.99158501585364 4.3111e-08 au
q 3.2158986152415 2.6541e-07 au
i 4.985850704941804 5.7807e-06 deg
node 272.6011876169744 7.9063e-05 deg
peri 291.4080313435164 8.0759e-05 deg
M 346.6015737232211 1.7319e-05 deg
tp 2459308.909612608136
(2021-Apr-04.40961261)
0.0001409 TDB
period 2912.839144890353
7.97
4.719e-05
1.292e-07
d
yr
n .1235907587384306 2.0023e-09 deg/d
Q 4.767271416465781 5.1489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      341  
   data-arc span      14628 days (40.05 yr)  
   first obs. used      1981-03-01  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:06:06  

Additional Information
 Earth MOID = 2.2162 au 
 Jupiter MOID = .499179 au 
 T_jup = 3.015 
[ 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 14.51   n/a E2021B10  

85142 (1981 EO29)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1981 EO29 = 1995 YV25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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