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26433 Michaelyurko (1999 XK215)
Classification: Main-belt Asteroid          SPK-ID: 2026433
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188327201671831 3.2977e-08  
a 2.264005815021504 6.5369e-09 au
q 1.994967845548178 7.4413e-08 au
i 6.692627567736448 3.7867e-06 deg
node 220.7658416907856 2.6787e-05 deg
peri 45.31779465298501 3.037e-05 deg
M 201.0663474140533 1.4199e-05 deg
tp 2459549.823397524360
(2021-Dec-01.32339752)
4.9313e-05 TDB
period 1244.270297014841
3.41
5.3889e-06
1.475e-08
d
yr
n .289326202565218 1.2531e-09 deg/d
Q 2.533043784494829 7.3137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1785  
   data-arc span      9684 days (26.51 yr)  
   first obs. used      1994-05-02  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:28:57  

Additional Information
 Earth MOID = .986011 au 
 Jupiter MOID = 2.52779 au 
 T_jup = 3.599 
[ 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 14.6   n/a MPO347720  
diameter diameter 2.636 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.933 h n/a LCDB (Rev. 2020-October); 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 0.335   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26433 Michaelyurko           Discovered 1999 Dec. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Michael Christopher Yurko (b. 1993) was awarded second place in the 2010 Intel International Science and Engineering Fair for his computer-science project. He attends the Detroit Catholic Central High School, Novi, Michigan, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 1999 XK215 = 1997 EW16 = 1998 QU88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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