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(2013 PD21)
Classification: Apollo [NEO]          SPK-ID: 3645499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5599637483825409 8.9007e-08  
a 1.952068102221844 2.6642e-07 au
q .8589807306037069 8.8714e-08 au
i 34.96407608880207 1.9211e-05 deg
node 135.7207674908485 1.0379e-05 deg
peri 289.4816476913969 1.7405e-05 deg
M 135.336465701355 0.00017999 deg
tp 2458625.998808114803
(2019-May-22.49880811)
0.00042148 TDB
period 996.1870097611176
2.73
0.00020394
5.584e-07
d
yr
n .3613779305216265 7.3981e-08 deg/d
Q 3.04515547383998 4.156e-07 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      2454 days (6.72 yr)  
   first obs. used      2013-08-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .26957  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-28 07:08:57  

Additional Information
 Earth MOID = .112788 au 
 Jupiter MOID = 2.94891 au 
 T_jup = 3.497 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.4   n/a MPO340303  
rotation period rot_per 4.82 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]

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