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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1610265329074437 8.9937e-08  
a 2.625607534896399 2.5868e-08 AU
q 2.202815056776372 2.2752e-07 AU
i 11.80317452500369 1.161e-05 deg
node 345.6623197468959 3.6867e-05 deg
peri 114.7062693929311 7.2534e-05 deg
M 11.61976709457614 5.3396e-05 deg
tp 2456950.342247935828
(2014-Oct-19.84224794)
0.00023016 JED
period 1553.971830599807
4.25
2.2965e-05
6.287e-08
d
yr
n .2316644310476633 3.4236e-09 deg/d
Q 3.048400013016426 3.0033e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      6213 days (17.01 yr)  
   first obs. used      1998-02-23  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62786  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 22:55:59  

Additional Information
 Earth MOID = 1.24856 AU 
 T_jup = 3.354 
[ 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
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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