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264281 (1998 DO31)
Classification: Main-belt Asteroid          SPK-ID: 2264281
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611814790600266 8.9301e-08  
a 2.624435491425293 2.51e-08 au
q 2.201425097219737 2.2566e-07 au
i 11.80572752088691 1.1468e-05 deg
node 345.6574967750809 3.4966e-05 deg
peri 114.4579536195895 7.0238e-05 deg
M 104.5236705642544 5.2219e-05 deg
tp 2456949.616407257357
(2014-Oct-19.11640726)
0.00022252 JED
period 1552.931431809685
4.25
2.2278e-05
6.099e-08
d
yr
n .2318196364796864 3.3257e-09 deg/d
Q 3.047445885630849 2.9146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      6255 days (17.13 yr)  
   first obs. used      1998-02-23  
   last obs. used      2015-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55206  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 23:56:57  

Additional Information
 Earth MOID = 1.24726 au 
 Jupiter MOID = 2.15036 au 
 T_jup = 3.355 
[ 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 16.0 mag n/a MPO338780  

264281 (1998 DO31)          Discovered 1998-Feb-23 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 1998 DO31 = 2001 YG138 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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