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305803 (2009 DY92)
Classification: Main-belt Asteroid          SPK-ID: 2305803
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330730812082526 2.8366e-07  
a 2.538805917420763 2.6197e-08 au
q 2.200959191399837 7.3594e-07 au
i 6.855138845100142 6.7527e-06 deg
node 131.0986913135986 0.00011494 deg
peri 285.1575254498695 0.00015857 deg
M 29.26278099593474 0.00011645 deg
tp 2458880.396468920039
(2020-Jan-31.89646892)
0.00047669 TDB
period 1477.551678864447
4.05
2.2869e-05
6.261e-08
d
yr
n .2436463002611681 3.7711e-09 deg/d
Q 2.876652643441688 2.9683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      6786 days (18.58 yr)  
   first obs. used      2001-04-16  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57384  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:14:19  

Additional Information
 Earth MOID = 1.22486 au 
 Jupiter MOID = 2.4549 au 
 T_jup = 3.424 
[ 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 17.3   n/a MPO503303  

305803 (2009 DY92)          Discovered 2009-Feb-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DY92 = 2007 UN39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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