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249905 (2001 SK91)
Classification: Main-belt Asteroid          SPK-ID: 2249905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .0780453235598714 8.1301e-08  
a 2.798566636431089 3.2923e-08 au
q 2.580151597786964 2.3836e-07 au
i 3.349103439072055 7.4534e-06 deg
node 277.3191836857554 0.00014886 deg
peri 110.8457451917396 0.00015715 deg
M 246.2580631685223 5.0813e-05 deg
tp 2459140.781409073419
(2020-Oct-18.28140907)
0.00024398 TDB
period 1710.022817306232
4.68
3.0176e-05
8.262e-08
d
yr
n .2105235066787597 3.715e-09 deg/d
Q 3.016981675075214 3.5493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      6967 days (19.07 yr)  
   first obs. used      1999-03-20  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63148  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:14:47  

Additional Information
 Earth MOID = 1.58649 au 
 Jupiter MOID = 2.34754 au 
 T_jup = 3.319 
[ 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 16.5   n/a MPO440261  
diameter diameter 2.890 km 0.931 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249905 (2001 SK91)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 SK91 = 1999 FP65 = 2006 UU221 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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