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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945934108765898 7.0258e-08  
a 3.992912206080498 4.9769e-08 au
q 3.215917800568525 2.968e-07 au
i 4.985985026688912 6.1049e-06 deg
node 272.6060570916975 8.0533e-05 deg
peri 291.3765725877391 8.2591e-05 deg
M 321.9233765579319 2.0796e-05 deg
tp 2459308.740000762593
(2021-Apr-04.24000076)
0.00017175 TDB
period 2914.292031260705
7.98
5.4487e-05
1.492e-07
d
yr
n .1235291440042356 2.3096e-09 deg/d
Q 4.769906611592472 5.9454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      14296 days (39.14 yr)  
   first obs. used      1981-03-01  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:33:45  

Additional Information
 Earth MOID = 2.21705 au 
 Jupiter MOID = .498646 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 14.5   n/a MPO502664  

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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