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243433 (2009 DY44)
Classification: Main-belt Asteroid          SPK-ID: 2243433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06051905006276333 5.2435e-08  
a 2.721934343992258 2.9707e-08 au
q 2.557205463160635 1.3677e-07 au
i 12.75237619223718 6.6685e-06 deg
node 90.1433108104037 2.5551e-05 deg
peri 34.85616348081589 6.1327e-05 deg
M 200.4561597390043 5.6368e-05 deg
tp 2459727.429737565266
(2022-May-27.92973757)
0.00025957 TDB
period 1640.268311803156
4.49
2.6853e-05
7.352e-08
d
yr
n .2194762877570012 3.593e-09 deg/d
Q 2.88666322482388 3.1505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      6190 days (16.95 yr)  
   first obs. used      2002-08-20  
   last obs. used      2019-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:00  

Additional Information
 Earth MOID = 1.58277 au 
 Jupiter MOID = 2.24522 au 
 T_jup = 3.320 
[ 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 15.8   n/a MPO494332  
diameter diameter 3.337 km 1.497 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.091   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243433 (2009 DY44)          Discovered 2009-Feb-27 by Lowe, A. at Mayhill
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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