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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2209943322688609 5.2855e-08  
a 2.725986919518974 1.6386e-08 au
q 2.123559260466229 1.482e-07 au
i 3.053824169973595 7.1941e-06 deg
node 310.577995366048 0.00012157 deg
peri 96.66050854046446 0.00012354 deg
M 23.49944247664155 1.7828e-05 deg
tp 2458893.190261579323
(2020-Feb-13.69026158)
8.1353e-05 TDB
period 1643.932866485806
4.50
1.4822e-05
4.058e-08
d
yr
n .218987044628874 1.9745e-09 deg/d
Q 3.328414578571719 2.0007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      6667 days (18.25 yr)  
   first obs. used      2001-08-26  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57603  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:17  

Additional Information
 Earth MOID = 1.13604 au 
 Jupiter MOID = 2.08456 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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