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382209 (2012 PQ21)
Classification: Main-belt Asteroid          SPK-ID: 2382209
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940681033388138 6.2636e-08  
a 3.181657296506091 4.685e-08 au
q 2.564199099499056 1.9466e-07 au
i 17.56562233735806 9.2403e-06 deg
node 311.521468171863 2.2679e-05 deg
peri 120.2440485843803 3.8466e-05 deg
M 49.36819992455199 2.5151e-05 deg
tp 2458716.235048387795
(2019-Aug-20.73504839)
0.00014439 TDB
period 2072.900829618864
5.68
4.5785e-05
1.254e-07
d
yr
n .1736696685418336 3.8359e-09 deg/d
Q 3.799115493513126 5.5942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4492 days (12.30 yr)  
   first obs. used      2007-10-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:33:04  

Additional Information
 Earth MOID = 1.6289 au 
 Jupiter MOID = 1.60799 au 
 T_jup = 3.098 
[ 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 15.9   n/a MPO455744  
diameter diameter 5.019 km 1.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

382209 (2012 PQ21)          Discovered 2007-Oct-16 by CSS at Catalina
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Alternate Designations
 2012 PQ21 = 2010 BU110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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