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20732 (1999 XB167)
Classification: Main-belt Asteroid          SPK-ID: 2020732
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1004359016032406 1.5604e-08  
a 2.966729628894704 1.4173e-08 au
q 2.668763463803617 5.1487e-08 au
i 14.07417319605354 9.5767e-07 deg
node 44.35774210254147 3.6086e-06 deg
peri 195.7909924486963 1.1613e-05 deg
M 229.5036853840609 1.3751e-05 deg
tp 2459877.067491313747
(2022-Oct-24.56749131)
7.3334e-05 TDB
period 1866.445788831493
5.11
1.3375e-05
3.662e-08
d
yr
n .19287996584427 1.3822e-09 deg/d
Q 3.264695793985791 1.5597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3286  
   data-arc span      10039 days (27.49 yr)  
   first obs. used      1993-09-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:29:18  

Additional Information
 Earth MOID = 1.65854 au 
 Jupiter MOID = 1.73612 au 
 T_jup = 3.211 
[ 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 13.02   n/a E2021B10  
diameter diameter 7.512 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.6977 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.237   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20732 (1999 XB167)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XB167 = 1993 ST15 = 2000 AC10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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