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146549 (2001 SK287)
Classification: Main-belt Asteroid          SPK-ID: 2146549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0977134565040698 6.0783e-08  
a 2.647619772398714 2.2903e-08 au
q 2.388911692929117 1.6341e-07 au
i 11.03278900190291 6.6224e-06 deg
node 336.2563300034475 2.9839e-05 deg
peri 215.4784177093703 4.4198e-05 deg
M 284.9743300865482 3.6557e-05 deg
tp 2459328.436103170984
(2021-Apr-23.93610317)
0.00016174 TDB
period 1573.554721707153
4.31
2.0418e-05
5.59e-08
d
yr
n .2287813668211266 2.9686e-09 deg/d
Q 2.906327851868311 2.5141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      6695 days (18.33 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:38:01  

Additional Information
 Earth MOID = 1.39959 au 
 Jupiter MOID = 2.095 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO320583  

146549 (2001 SK287)          Discovered 2001-Sep-21 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2001 SK287 = 2005 QO94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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