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160897 (2001 SB257)
Classification: Main-belt Asteroid          SPK-ID: 2160897
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978183225701571 8.3925e-08  
a 2.141274878036731 2.2302e-08 au
q 1.717691473501887 1.9454e-07 au
i 3.868996619263904 6.3794e-06 deg
node 187.2902002047121 7.1383e-05 deg
peri 144.306986730939 7.7982e-05 deg
M 19.15334163622952 4.6406e-05 deg
tp 2458939.609559768056
(2020-Mar-31.10955977)
0.00014663 TDB
period 1144.476974296542
3.13
1.788e-05
4.895e-08
d
yr
n .3145541658636477 4.9142e-09 deg/d
Q 2.564858282571574 2.6713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      6476 days (17.73 yr)  
   first obs. used      2001-08-28  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:27:16  

Additional Information
 Earth MOID = .709156 au 
 Jupiter MOID = 2.79869 au 
 T_jup = 3.685 
[ 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 17.1   n/a MPO382102  

160897 (2001 SB257)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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