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249424 (2009 DT140)
Classification: Main-belt Asteroid          SPK-ID: 2249424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959545658577716 6.7072e-08  
a 2.779879667444421 3.3302e-08 au
q 2.235149554073503 1.8967e-07 au
i 5.22764260145728 7.0112e-06 deg
node 253.1658889415634 8.6616e-05 deg
peri 355.0657308246292 8.9202e-05 deg
M 89.28985239687475 2.5183e-05 deg
tp 2458580.608554593041
(2019-Apr-07.10855459)
0.0001137 TDB
period 1692.923846201768
4.63
3.0421e-05
8.329e-08
d
yr
n .2126498488444672 3.8212e-09 deg/d
Q 3.324609780815339 3.9828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      7504 days (20.54 yr)  
   first obs. used      2000-04-07  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:18:00  

Additional Information
 Earth MOID = 1.22138 au 
 Jupiter MOID = 1.71811 au 
 T_jup = 3.299 
[ 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 16.3   n/a MPO437158  
diameter diameter 3.890 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249424 (2009 DT140)          Discovered 2009-Feb-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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