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264290 (1998 SD27)
Classification: Main-belt Asteroid          SPK-ID: 2264290
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2465378792004834 1.3285e-07  
a 2.4312076869855 2.4496e-08 AU
q 1.831822899940182 3.3357e-07 AU
i 1.845565745149432 1.0575e-05 deg
node 215.2599525081458 0.0004021 deg
peri 158.8982382839664 0.00040434 deg
M 45.04875319864889 3.2377e-05 deg
tp 2456627.234621321771
(2013-Nov-30.73462132)
0.00012347 JED
period 1384.622922838918
3.79
2.0926e-05
5.729e-08
d
yr
n .2599985844968429 3.9295e-09 deg/d
Q 3.030592474030818 3.0535e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      5601 days (15.33 yr)  
   first obs. used      1998-09-20  
   last obs. used      2014-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53966  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 21:28:20  

Additional Information
 Earth MOID = .831442 AU 
 T_jup = 3.464 
[ 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 17.0 mag n/a MPO273600  

264290 (1998 SD27)          Discovered 1998-Sep-20 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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