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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2915004220132819 9.2474e-08  
a 2.717812979870751 1.2921e-08 au
q 1.925569349285252 2.4749e-07 au
i 14.83776485849942 1.1578e-05 deg
node 228.3493536200783 1.6315e-05 deg
peri 122.2718545938918 2.8777e-05 deg
M 78.54169071321894 2.2166e-05 deg
tp 2458643.452888043312
(2019-Jun-08.95288804)
9.9518e-05 TDB
period 1636.544351632786
4.48
1.1671e-05
3.195e-08
d
yr
n .2199757065189383 1.5688e-09 deg/d
Q 3.510056610456251 1.6688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      7178 days (19.65 yr)  
   first obs. used      2000-06-02  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:28  

Additional Information
 Earth MOID = .966119 au 
 Jupiter MOID = 2.17527 au 
 T_jup = 3.251 
[ 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 15.7   n/a MPO503177  
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-August); 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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