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91035 (1998 EM21)
Classification: Main-belt Asteroid          SPK-ID: 2091035
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09398812864883638 7.0641e-08  
a 2.669213997235889 2.5686e-08 au
q 2.418339568672407 1.8711e-07 au
i 12.70900464106847 9.0786e-06 deg
node 3.140924703450787 3.0868e-05 deg
peri 148.0658084211379 5.5591e-05 deg
M 82.0298145150482 4.5334e-05 deg
tp 2457237.553388590550
(2015-Aug-03.05338859)
0.00019935 JED
period 1592.845002513476
4.36
2.2992e-05
6.295e-08
d
yr
n .2260106912046856 3.2623e-09 deg/d
Q 2.92008842579937 2.81e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      6619 days (18.12 yr)  
   first obs. used      1998-03-05  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5829  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 15:38:11  

Additional Information
 Earth MOID = 1.43477 au 
 Jupiter MOID = 2.07407 au 
 T_jup = 3.341 
[ 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 15.0 mag n/a MPO320097  

91035 (1998 EM21)          Discovered 1998-Mar-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 EM21 = 2000 SV35 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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