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268950 (2007 DJ51)
Classification: Main-belt Asteroid          SPK-ID: 2268950
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435642014172277 4.633e-08  
a 2.555716093831328 2.025e-08 au
q 2.188806753771277 1.1673e-07 au
i 5.938869469567297 1.0491e-05 deg
node 325.3941347905595 5.4136e-05 deg
peri 262.8709430431956 6.739e-05 deg
M 34.09961145504678 3.9188e-05 deg
tp 2458859.143993159870
(2020-Jan-10.64399316)
0.00016214 TDB
period 1492.338483959914
4.09
1.7737e-05
4.856e-08
d
yr
n .2412321359191525 2.8671e-09 deg/d
Q 2.92262543389138 2.3158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      6298 days (17.24 yr)  
   first obs. used      2003-03-26  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:09:41  

Additional Information
 Earth MOID = 1.1888 au 
 Jupiter MOID = 2.10975 au 
 T_jup = 3.416 
[ 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 16.8   n/a MPO427490  
rotation period rot_per 5.13 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

268950 (2007 DJ51)          Discovered 2007-Feb-17 by CSS at Catalina
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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