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JPL Small-Body Database Browser
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26408 (1999 XO33)
Classification: Main-belt Asteroid          SPK-ID: 2026408
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09114859613627498 4.6761e-08  
a 2.619954636200683 1.1381e-08 au
q 2.381149449170266 1.2444e-07 au
i 14.75634121528975 4.3912e-06 deg
node 118.7165974088283 1.6807e-05 deg
peri 19.10295078590422 2.718e-05 deg
M 282.8984386068045 2.1067e-05 deg
tp 2459332.241463873538
(2021-Apr-27.74146387)
9.0978e-05 TDB
period 1548.956011220462
4.24
1.0093e-05
2.763e-08
d
yr
n .2324146053162264 1.5144e-09 deg/d
Q 2.858759823231101 1.2419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1734  
   data-arc span      10659 days (29.18 yr)  
   first obs. used      1990-11-20  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:44:25  

Additional Information
 Earth MOID = 1.39971 au 
 Jupiter MOID = 2.20574 au 
 T_jup = 3.353 
[ 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 13.5   n/a MPO358876  
diameter diameter 4.806 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 29.250 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 0.334   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26408 (1999 XO33)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XO33 = 1990 WR7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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