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JPL Small-Body Database Browser
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12021 (1996 XX19)
Classification: Main-belt Asteroid          SPK-ID: 2012021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1604361157597806 3.7289e-08  
a 2.239817244559569 6.152e-09 au
q 1.880469665830657 8.3476e-08 au
i 4.019369964711612 3.2909e-06 deg
node 102.1377138223418 6.0935e-05 deg
peri 251.2078321359016 6.1914e-05 deg
M 324.9936737535172 1.0545e-05 deg
tp 2458719.558755335807
(2019-Aug-24.05875534)
3.5831e-05 TDB
period 1224.383033486606
3.35
5.0445e-06
1.381e-08
d
yr
n .2940256358950421 1.2114e-09 deg/d
Q 2.599164823288481 7.139e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1530  
   data-arc span      17758 days (48.62 yr)  
   first obs. used      1971-04-16  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53108  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:42:02  

Additional Information
 Earth MOID = .878817 au 
 Jupiter MOID = 2.82588 au 
 T_jup = 3.615 
[ 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 14.8   n/a MPO431639  
diameter diameter 2.741 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.310   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12021 (1996 XX19)          Discovered 1996-Dec-12 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 XX19 = 1992 PQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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