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441774 (2009 DM31)
Classification: Main-belt Asteroid          SPK-ID: 2441774
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .237749732407235 9.6912e-08  
a 3.165517128739372 3.5799e-08 au
q 2.412916278451068 3.1171e-07 au
i 14.63984278118927 9.9479e-06 deg
node 178.3284077216806 2.9655e-05 deg
peri 324.3764713065721 3.7315e-05 deg
M 23.35706462930038 1.5688e-05 deg
tp 2458867.030759140318
(2020-Jan-18.53075914)
8.9961e-05 TDB
period 2057.147482873778
5.63
3.4897e-05
9.554e-08
d
yr
n .1749996064925253 2.9686e-09 deg/d
Q 3.918117979027677 4.4311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      6269 days (17.16 yr)  
   first obs. used      2003-02-22  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54826  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:02  

Additional Information
 Earth MOID = 1.43988 au 
 Jupiter MOID = 1.20186 au 
 T_jup = 3.110 
[ 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 MPO460658  

441774 (2009 DM31)          Discovered 2009-Jan-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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