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410998 (2009 UD44)
Classification: Main-belt Asteroid          SPK-ID: 2410998
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148354571466767 5.8124e-08  
a 3.09322441623888 3.2627e-08 au
q 2.738012576342826 1.8737e-07 au
i 4.705964856398103 6.2395e-06 deg
node 209.2013487485637 6.4477e-05 deg
peri 210.0542290232177 7.0036e-05 deg
M 319.7833089974137 2.5224e-05 deg
tp 2459222.482840752485
(2021-Jan-07.98284075)
0.0001393 TDB
period 1987.081002406572
5.44
3.144e-05
8.608e-08
d
yr
n .181170269135481 2.8665e-09 deg/d
Q 3.448436256134935 3.6374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      7580 days (20.75 yr)  
   first obs. used      2000-02-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:19:42  

Additional Information
 Earth MOID = 1.75151 au 
 Jupiter MOID = 1.88551 au 
 T_jup = 3.209 
[ 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 16.7   n/a MPO455921  

410998 (2009 UD44)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-10-09

[ show close-approach data ]
Alternate Designations
 2009 UD44 = 2004 XB46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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