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249958 (2001 UE26)
Classification: Main-belt Asteroid          SPK-ID: 2249958
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 .2913025617651669 9.6853e-08  
a 2.717059636341383 1.3458e-08 au
q 1.925573203806406 2.5986e-07 au
i 14.83935043986199 1.3348e-05 deg
node 228.3514117864312 2.0651e-05 deg
peri 122.2405723019763 3.2615e-05 deg
M 350.5680430895727 2.226e-05 deg
tp 2458643.359439807655
(2019-Jun-08.85943981)
0.0001013 TDB
period 1635.863954562624
4.48
1.2154e-05
3.328e-08
d
yr
n .2200671999623906 1.635e-09 deg/d
Q 3.508546068876361 1.7378e-08 au
  Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      7118 days (19.49 yr)  
   first obs. used      2000-06-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46067  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:49  

Additional Information
 Earth MOID = .965343 au 
 Jupiter MOID = 2.17345 au 
 T_jup = 3.252 
[ 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 MPO258027  
diameter diameter 5.314 km 0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.816 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249958 (2001 UE26)          Discovered 2001-Oct-18 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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