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JPL Small-Body Database Browser
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411000 (2009 UM44)
Classification: Main-belt Asteroid          SPK-ID: 2411000
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182515866919144 2.8622e-07  
a 2.986227088073723 7.3461e-08 au
q 2.63310099668663 9.0459e-07 au
i 3.642566327915632 1.6293e-05 deg
node 47.77433154395981 0.00023253 deg
peri 302.6026313526636 0.00024372 deg
M 54.81348379660385 5.8977e-05 deg
tp 2458713.509462540475
(2019-Aug-18.00946254)
0.0003165 TDB
period 1884.875514732934
5.16
6.9552e-05
1.904e-07
d
yr
n .1909940455940445 7.0477e-09 deg/d
Q 3.339353179460816 8.2148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      5482 days (15.01 yr)  
   first obs. used      2004-10-23  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67792  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 14:23:50  

Additional Information
 Earth MOID = 1.62954 au 
 Jupiter MOID = 2.08294 au 
 T_jup = 3.244 
[ 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 16.9   n/a MPO495084  
diameter diameter 2.694 km 0.874 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

411000 (2009 UM44)          Discovered 2009-Sep-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-10-09

Alternate Designations
 2009 UM44 = 2010 BD43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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