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91034 (1998 EH21)
Classification: Inner Main-belt Asteroid          SPK-ID: 2091034
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06650938769815087 1.4457e-07  
a 1.90011716811934 1.5597e-08 AU
q 1.773741538712979 2.7651e-07 AU
i 21.92926403546891 1.5194e-05 deg
node 162.3709285050857 2.0517e-05 deg
peri 200.8342794877063 6.2916e-05 deg
M 297.9633449897719 5.9789e-05 deg
tp 2457165.359839171002
(2015-May-22.85983917)
0.00015895 JED
period 956.6850774235912
2.62
1.178e-05
3.225e-08
d
yr
n .3762993784428006 4.6334e-09 deg/d
Q 2.026492797525702 1.6635e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      5941 days (16.27 yr)  
   first obs. used      1998-03-01  
   last obs. used      2014-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61335  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:56:52  

Additional Information
 Earth MOID = .772837 AU 
 T_jup = 3.857 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4 mag n/a MPO244867  

91034 (1998 EH21)          Discovered 1998-Mar-01 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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