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JPL Small-Body Database Browser
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249908 (2001 SR143)
Classification: Main-belt Asteroid          SPK-ID: 2249908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2207546208431401 5.2961e-08  
a 2.725403108815049 1.676e-08 au
q 2.123757778883868 1.4828e-07 au
i 3.053748291587587 7.8174e-06 deg
node 310.58116056 0.00012164 deg
peri 96.65200621762062 0.00012366 deg
M 295.8834634398187 1.8317e-05 deg
tp 2458893.192841736894
(2020-Feb-13.69284174)
8.383e-05 TDB
period 1643.404785696427
4.50
1.516e-05
4.151e-08
d
yr
n .219057412472754 2.0207e-09 deg/d
Q 3.327048438746231 2.046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6630 days (18.15 yr)  
   first obs. used      2001-08-26  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57818  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:26  

Additional Information
 Earth MOID = 1.13574 au 
 Jupiter MOID = 2.08457 au 
 T_jup = 3.319 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO224351  
diameter diameter 2.824 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249908 (2001 SR143)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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