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JPL Small-Body Database Browser
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20713 (1999 XA32)
Classification: Main-belt Asteroid          SPK-ID: 2020713
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095808736679513 4.0799e-08  
a 3.139155785683669 1.9571e-08 au
q 2.795164352108649 1.2708e-07 au
i 12.6732221950684 4.7303e-06 deg
node 290.1745205150661 2.2986e-05 deg
peri 285.5008973609735 3.4227e-05 deg
M 164.9936396713159 2.6888e-05 deg
tp 2458069.429788233473
(2017-Nov-11.92978823)
0.00015047 TDB
period 2031.504225882117
5.56
1.8998e-05
5.201e-08
d
yr
n .1772085902719111 1.6572e-09 deg/d
Q 3.48314721925869 2.1715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      24195 days (66.24 yr)  
   first obs. used      1953-10-09  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:23:55  

Additional Information
 Earth MOID = 1.82113 au 
 Jupiter MOID = 1.7595 au 
 T_jup = 3.164 
[ 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 11.9   n/a MPO358828  
diameter diameter 20.690 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.5 h n/a LCDB (Rev. 2019-January); 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.]
[DeGraff, D.R. (2017) Minor Planet Bull. 44, 350-354.]
geometric albedo albedo 0.086   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20713 (1999 XA32)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XA32 = 1976 YL2 = 1978 GN = 1983 CP7 = 1987 YQ3 = 1989 EG11 = 1991 RP41 = 1994 AQ15 = 1998 XS27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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