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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109320626728522 1.6095e-08  
a 3.139906875298363 1.6191e-08 au
q 2.796650287821551 5.6022e-08 au
i 12.67307392183352 7.47e-07 deg
node 290.1763411724146 1.4791e-06 deg
peri 285.4643055949057 1.3846e-05 deg
M 200.471051326449 1.6984e-05 deg
tp 2460101.055703064182
(2023-Jun-05.55570306)
9.8132e-05 TDB
period 2032.233370800469
5.56
1.5718e-05
4.303e-08
d
yr
n .1771450096098958 1.3701e-09 deg/d
Q 3.483163462775175 1.796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2482  
   data-arc span      24624 days (67.42 yr)  
   first obs. used      1953-10-09  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:27:54  

Additional Information
 Earth MOID = 1.82154 au 
 Jupiter MOID = 1.75852 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 12.00   n/a E2021B10  
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. 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.]
[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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