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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606974043615547 1.1996e-07  
a 2.624574790012543 9.1592e-08 AU
q 2.202812433704755 2.6758e-07 AU
i 11.80267068139004 1.4894e-05 deg
node 345.670516427294 4.771e-05 deg
peri 114.7345155190226 0.00019092 deg
M 325.2392061070055 0.00018332 deg
tp 2456950.459520185231
(2014-Oct-19.95952019)
0.00079832 JED
period 1553.0550721272
4.25
8.1298e-05
2.226e-07
d
yr
n .2318011810791182 1.2134e-08 deg/d
Q 3.046337146320332 1.0631e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      5788 days (15.85 yr)  
   first obs. used      1998-02-23  
   last obs. used      2013-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .65036  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 15:04:11  

Additional Information
 Earth MOID = 1.24829 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 15.9 mag n/a MPO270980  

264281 (1998 DO31)          Discovered 1998-Feb-23 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
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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