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332539 (2008 PN20)
Classification: Main-belt Asteroid          SPK-ID: 2332539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3073160164032927 5.8308e-08  
a 2.727310623726619 2.8872e-08 au
q 1.889164387348575 1.6032e-07 au
i 16.63679912570309 7.523e-06 deg
node 96.39626985197538 2.1769e-05 deg
peri 255.1910697604603 2.4411e-05 deg
M 206.5874955466805 1.2299e-05 deg
tp 2459701.565494480986
(2022-May-02.06549448)
6.3119e-05 TDB
period 1645.130420838352
4.50
2.6123e-05
7.152e-08
d
yr
n .2188276354506565 3.4748e-09 deg/d
Q 3.565456860104663 3.7745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      6183 days (16.93 yr)  
   first obs. used      2003-05-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56202  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:29:47  

Additional Information
 Earth MOID = .958887 au 
 Jupiter MOID = 2.13814 au 
 T_jup = 3.228 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO434082  
diameter diameter 4.845 km 0.485 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

332539 (2008 PN20)          Discovered 2008-Aug-02 by Siding Spring Survey at Siding Spring
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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