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86332 (1999 XG21)
Classification: Main-belt Asteroid          SPK-ID: 2086332
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271847722337202 4.2e-08  
a 3.145380415015802 2.8803e-08 au
q 2.745335923343613 1.3648e-07 au
i 10.96615794536227 5.1274e-06 deg
node 66.7180460886072 2.3759e-05 deg
peri 273.4728869831944 3.0923e-05 deg
M 298.940733841654 2.2034e-05 deg
tp 2459346.086901934245
(2021-May-11.58690193)
0.0001268 TDB
period 2037.549622258649
5.58
2.7987e-05
7.662e-08
d
yr
n .1766828135458785 2.4269e-09 deg/d
Q 3.545424906687991 3.2466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      706  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:48:09  

Additional Information
 Earth MOID = 1.76559 au 
 Jupiter MOID = 1.92526 au 
 T_jup = 3.168 
[ 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 14.4   n/a MPO302499  
diameter diameter 3.958 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

86332 (1999 XG21)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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