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385259 (2001 PP9)
Classification: Main-belt Asteroid          SPK-ID: 2385259
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .231465704974973 8.7366e-08  
a 2.403675311929308 1.1454e-08 au
q 1.847306911322652 2.1269e-07 au
i 1.146098673793825 5.4653e-06 deg
node 270.5933370507843 0.00044572 deg
peri 97.5286128935778 0.00044595 deg
M 354.8403108569469 1.2398e-05 deg
tp 2459020.008917302627
(2020-Jun-19.50891730)
4.6914e-05 TDB
period 1361.16925540013
3.73
9.729e-06
2.664e-08
d
yr
n .2644784978589413 1.8904e-09 deg/d
Q 2.960043712535963 1.4105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      7002 days (19.17 yr)  
   first obs. used      2001-08-12  
   last obs. used      2020-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59966  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:21:28  

Additional Information
 Earth MOID = .846798 au 
 Jupiter MOID = 2.5074 au 
 T_jup = 3.487 
[ 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 17.7   n/a MPO476805  

385259 (2001 PP9)          Discovered 2001-Aug-12 by Kusnirak, P. at Ondrejov
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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