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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928905818176317 5.8538e-08  
a 2.364033101734381 1.9127e-08 au
q 1.908033381304695 1.3667e-07 au
i 2.557764972109356 6.5854e-06 deg
node 209.433583283426 0.00015512 deg
peri 252.1402302016124 0.00015762 deg
M 338.2762456210197 2.2641e-05 deg
tp 2458680.614502456183
(2019-Jul-16.11450246)
8.3749e-05 TDB
period 1327.6351951453
3.63
1.6112e-05
4.411e-08
d
yr
n .2711588253432832 3.2908e-09 deg/d
Q 2.820032822164066 2.2816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      6541 days (17.91 yr)  
   first obs. used      2000-11-17  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5839  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:32:16  

Additional Information
 Earth MOID = .926884 au 
 Jupiter MOID = 2.34158 au 
 T_jup = 3.522 
[ 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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