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332540 (2008 PN21)
Classification: Main-belt Asteroid          SPK-ID: 2332540
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451149689929883 5.7875e-08  
a 2.797092430496606 3.5773e-08 au
q 2.391192449174569 1.7055e-07 au
i 25.86906506456568 7.75e-06 deg
node 145.5010348028521 1.2007e-05 deg
peri 230.1965159792104 2.683e-05 deg
M 167.5580696677991 2.6631e-05 deg
tp 2458205.217361723682
(2018-Mar-27.71736172)
0.00012135 TDB
period 1708.671807613306
4.68
3.2779e-05
8.974e-08
d
yr
n .2106899630437823 4.0419e-09 deg/d
Q 3.202992411818644 4.0965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      7455 days (20.41 yr)  
   first obs. used      1999-11-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:30:10  

Additional Information
 Earth MOID = 1.44336 au 
 Jupiter MOID = 2.33373 au 
 T_jup = 3.166 
[ 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  

332540 (2008 PN21)          Discovered 2008-Aug-06 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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