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246880 (1995 SR54)
Classification: Main-belt Asteroid          SPK-ID: 2246880
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2234492566828603 8.7771e-08  
a 2.411981129178895 2.3782e-08 AU
q 1.873025738730785 2.0432e-07 AU
i 1.412094518684367 7.4393e-06 deg
node 144.0769535011709 0.00030757 deg
peri 222.2475629890893 0.00030886 deg
M 34.55433271596155 1.7589e-05 deg
tp 2456869.171405849196
(2014-Jul-30.67140585)
6.6902e-05 JED
period 1368.230556871686
3.75
2.0236e-05
5.54e-08
d
yr
n .2631135507038388 3.8914e-09 deg/d
Q 2.950936519627005 2.9096e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1992-12-25  
   last obs. used      2014-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57281  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 20:49:12  

Additional Information
 Earth MOID = .871864 AU 
 T_jup = 3.484 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2 mag n/a MPO314701  

246880 (1995 SR54)          Discovered 1995-Sep-17 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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