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23187 (2000 PN9)
Classification: Apollo [NEO, PHA]          SPK-ID: 2023187
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 369 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5893056025173983 1.2784e-08  
a 1.846805401656803 1.0639e-09 au
q .7584726317010548 2.3859e-08 au
i 51.33291645222734 6.9391e-06 deg
node 164.3067403107267 6.307e-07 deg
peri 293.5611107086231 3.0541e-06 deg
M 337.6687698446542 1.7836e-06 deg
tp 2459257.364376016612
(2021-Feb-11.86437602)
4.5776e-06 TDB
period 916.7061206916881
2.51
7.9215e-07
2.169e-09
d
yr
n .3927103701766133 3.3935e-10 deg/d
Q 2.93513817161255 1.6909e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2016  
   # delay obs. used      6  
   # Doppler obs. used      2  
   data-arc span      11245 days (30.79 yr)  
   first obs. used      1990-08-02  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35398  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-17 06:06:10  

Additional Information
 Earth MOID = .0145596 au 
 Jupiter MOID = 3.07621 au 
 T_jup = 3.419 
[ 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 16.0   n/a MPO492990  
rotation period rot_per 2.5325 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2001) http://www.asu.cas.cz/~ppravec/neo.htm]
[Belskaya, I.N.; Fornasier, S.; Krugly, Y.U. (2009) Icarus 201, 167-171.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]

23187 (2000 PN9)          Discovered 2000-Aug-08 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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