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18535 (1996 XQ13)
Classification: Main-belt Asteroid          SPK-ID: 2018535
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195380668239624 1.963e-08  
a 2.631114522850992 1.0552e-08 au
q 2.316596179196932 5.5475e-08 au
i 11.5168297439246 8.8324e-07 deg
node 240.8654469268743 2.4336e-06 deg
peri 91.43149350616729 7.1813e-06 deg
M 318.1593114381078 8.5879e-06 deg
tp 2459381.677547573251
(2021-Jun-16.17754757)
3.7602e-05 TDB
period 1558.863378404703
4.27
9.3775e-06
2.567e-08
d
yr
n .2309374926546892 1.3892e-09 deg/d
Q 2.945632866505051 1.1813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1787  
   data-arc span      12034 days (32.95 yr)  
   first obs. used      1987-09-25  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42959  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:31:10  

Additional Information
 Earth MOID = 1.33984 au 
 Jupiter MOID = 2.41 au 
 T_jup = 3.361 
[ 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 13.76   n/a E2021B10  
diameter diameter 7.867 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.7827 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 0.114   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18535 (1996 XQ13)          Discovered 1996-Dec-09 by Klet at Klet
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 XQ13 = 1987 SM16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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