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JPL Small-Body Database Browser
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382219 (2012 QE21)
Classification: Main-belt Asteroid          SPK-ID: 2382219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08530177421052657 4.8881e-08  
a 2.972478864435794 5.3412e-08 au
q 2.71892114349613 1.4238e-07 au
i 10.89288637124116 5.7339e-06 deg
node 201.5726245664301 3.118e-05 deg
peri 14.76731500451 4.8056e-05 deg
M 230.7484207876975 3.8635e-05 deg
tp 2459272.562939406209
(2021-Feb-27.06293941)
0.00020704 TDB
period 1871.873904061409
5.12
5.0453e-05
1.381e-07
d
yr
n .1923206468229015 5.1836e-09 deg/d
Q 3.226036585375458 5.7968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      6899 days (18.89 yr)  
   first obs. used      2000-03-06  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:44:51  

Additional Information
 Earth MOID = 1.71437 au 
 Jupiter MOID = 1.7404 au 
 T_jup = 3.230 
[ 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 15.7   n/a MPO418952  
diameter diameter 3.259 km 1.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

382219 (2012 QE21)          Discovered 2005-Mar-04 by CSS at Catalina
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Alternate Designations
 2012 QE21 = 2010 JG140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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