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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09114859483422356 4.6446e-08  
a 2.619954635943922 1.1264e-08 au
q 2.381149452348224 1.2379e-07 au
i 14.7563411720865 4.3366e-06 deg
node 118.7165977980582 1.6513e-05 deg
peri 19.1029500708414 2.6873e-05 deg
M 282.8984390510713 2.0781e-05 deg
tp 2459332.241461913244
(2021-Apr-27.74146191)
8.9704e-05 TDB
period 1548.95601099276
4.24
9.9891e-06
2.735e-08
d
yr
n .2324146053503921 1.4988e-09 deg/d
Q 2.85875981953962 1.2291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1797  
   data-arc span      10939 days (29.95 yr)  
   first obs. used      1990-11-20  
   last obs. used      2020-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:28:57  

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. 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 0.334   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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