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19855 Borisalexeev (2000 UE6)
Classification: Main-belt Asteroid          SPK-ID: 2019855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08634312504328044 4.2962e-08  
a 2.984150758358997 1.6804e-08 au
q 2.726489856282006 1.3369e-07 au
i 9.074558520166212 3.894e-06 deg
node 205.9051123399414 2.1745e-05 deg
peri 120.8888254123731 3.699e-05 deg
M 25.86409553390421 2.5908e-05 deg
tp 2459065.222876012264
(2020-Aug-03.72287601)
0.00013587 TDB
period 1882.910019866983
5.16
1.5904e-05
4.354e-08
d
yr
n .1911934166803319 1.6149e-09 deg/d
Q 3.241811660435987 1.8255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      9223 days (25.25 yr)  
   first obs. used      1995-10-20  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49897  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:00  

Additional Information
 Earth MOID = 1.72791 au 
 Jupiter MOID = 2.06872 au 
 T_jup = 3.234 
[ 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 14.46   n/a E2021B10  
diameter diameter 4.636 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19855 Borisalexeev           Discovered 2000 Oct. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Boris Alexeev (b. 1987) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for his computer science project. He attends the Cedar Shoals High School, Athens, Georgia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

[ show close-approach data ]
Alternate Designations
 2000 UE6 = 1998 HT38 = 1999 NN60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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