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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1610265338022375 8.982e-08  
a 2.625607535650012 2.4842e-08 AU
q 2.202815055059256 2.274e-07 AU
i 11.80317598074377 1.1467e-05 deg
node 345.6623267630035 3.5158e-05 deg
peri 114.7062643902586 7.027e-05 deg
M 11.61976526946974 5.1598e-05 deg
tp 2456950.342255792467
(2014-Oct-19.84225579)
0.00022244 JED
period 1553.971831268848
4.25
2.2055e-05
6.038e-08
d
yr
n .2316644309479233 3.2879e-09 deg/d
Q 3.048400016240768 2.8843e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      1998-02-23  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54584  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-08 00:20:17  

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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