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JPL Small-Body Database Browser
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305838 (2009 DM138)
Classification: Main-belt Asteroid          SPK-ID: 2305838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485948610068125 5.6603e-08  
a 3.084139593421631 4.2567e-08 au
q 2.625852299211537 1.7505e-07 au
i .7506825578805481 6.9819e-06 deg
node 185.2482172994721 0.00054567 deg
peri 100.2119825633439 0.00054634 deg
M 220.8135960378682 2.6897e-05 deg
tp 2459365.380837471878
(2021-May-30.88083747)
0.00015463 TDB
period 1978.333326039461
5.42
4.0957e-05
1.121e-07
d
yr
n .181971357031479 3.7673e-09 deg/d
Q 3.542426887631726 4.8892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      6714 days (18.38 yr)  
   first obs. used      2000-09-21  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58218  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:32:15  

Additional Information
 Earth MOID = 1.60894 au 
 Jupiter MOID = 1.61242 au 
 T_jup = 3.210 
[ 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 16.4   n/a MPO433970  

305838 (2009 DM138)          Discovered 2009-Feb-20 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DM138 = 2004 JC51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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