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(2009 DL46)
Classification: Apollo [NEO, PHA]          SPK-ID: 3449054
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 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3072312069029444 7.607e-09  
a 1.460842388386877 2.8383e-09 au
q 1.012026018307797 1.0321e-08 au
i 7.916067435185403 1.4806e-06 deg
node 63.40239344963804 2.6953e-06 deg
peri 160.3005958109802 8.6785e-06 deg
M 108.9161607193078 4.1006e-06 deg
tp 2458805.383816167048
(2019-Nov-17.88381617)
7.0603e-06 TDB
period 644.9164725966231
1.77
1.8795e-06
5.146e-09
d
yr
n .5582118232312074 1.6269e-09 deg/d
Q 1.909658758465957 3.7103e-09 au
  Orbit Determination Parameters
   # obs. used (total)      467  
   # delay obs. used      5  
   # Doppler obs. used      2  
   data-arc span      2660 days (7.28 yr)  
   first obs. used      2009-02-28  
   last obs. used      2016-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40642  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 05:58:56  

Additional Information
 Earth MOID = .0119882 au 
 Jupiter MOID = 3.07242 au 
 T_jup = 4.561 
[ 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 22.0   n/a MPO386802  
rotation period rot_per 42.26 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. (2016) Minor Planet Bull. 43, 311-319.]

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