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91022 (1998 DV31)
Classification: Main-belt Asteroid          SPK-ID: 2091022
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2398353451324935 7.1444e-08  
a 2.61357583720455 1.5019e-08 au
q 1.986747974258651 1.8264e-07 au
i 11.59514659347514 8.4725e-06 deg
node 336.6115354979663 2.6984e-05 deg
peri 156.7875620571417 3.3547e-05 deg
M 140.9544680036135 1.6604e-05 deg
tp 2456996.235010407358
(2014-Dec-04.73501041)
6.921e-05 JED
period 1543.302595046328
4.23
1.3303e-05
3.642e-08
d
yr
n .233265985008723 2.0107e-09 deg/d
Q 3.240403700150449 1.8621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      6775 days (18.55 yr)  
   first obs. used      1996-10-04  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52161  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 19:07:49  

Additional Information
 Earth MOID = 1.00436 au 
 Jupiter MOID = 1.81811 au 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO337937  

91022 (1998 DV31)          Discovered 1998-Feb-19 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 DV31 = 1981 EZ48 = 2000 QH111 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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