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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3071512933028128 7.6222e-09  
a 1.460915581529049 2.829e-09 au
q 1.012193471256171 1.0357e-08 au
i 7.915753887751484 1.4804e-06 deg
node 63.40332074738616 2.6954e-06 deg
peri 160.2918815636582 8.6812e-06 deg
M 220.5709213573637 4.2856e-06 deg
tp 2459450.296854479067
(2021-Aug-23.79685448)
8.1266e-06 TDB
period 644.9649419469462
1.77
1.8734e-06
5.129e-09
d
yr
n .5581698734093566 1.6213e-09 deg/d
Q 1.909637691801928 3.698e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:36:49  

Additional Information
 Earth MOID = .010862 au 
 Jupiter MOID = 3.07129 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. 2020-October); 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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