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305839 (2009 DN138)
Classification: Main-belt Asteroid          SPK-ID: 2305839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927337310742429 5.0789e-08  
a 2.363546200368227 1.7369e-08 au
q 1.908011122604908 1.1399e-07 au
i 2.557796295525793 6.4837e-06 deg
node 209.4285858462504 0.00011882 deg
peri 252.0953223965853 0.00012118 deg
M 86.80464405266331 2.1883e-05 deg
tp 2458680.474171537264
(2019-Jul-15.97417154)
7.8939e-05 TDB
period 1327.225052345
3.63
1.463e-05
4.005e-08
d
yr
n .2712426196024074 2.99e-09 deg/d
Q 2.819081278131546 2.0717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      7100 days (19.44 yr)  
   first obs. used      2000-11-17  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:01:29  

Additional Information
 Earth MOID = .92672 au 
 Jupiter MOID = 2.34157 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO455253  

305839 (2009 DN138)          Discovered 2009-Feb-20 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DN138 = 2004 XM68 = 2007 TE191 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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