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JPL Small-Body Database Browser
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172009 (2001 UM59)
Classification: Main-belt Asteroid          SPK-ID: 2172009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142379676435157 6.4323e-08  
a 3.105316500764628 2.683e-08 au
q 2.750571454827403 2.0407e-07 au
i 2.706156558618854 4.7565e-06 deg
node 258.3760448771142 0.00012982 deg
peri 57.65926489438221 0.00013164 deg
M 201.9313455543373 2.2344e-05 deg
tp 2459878.107829361886
(2022-Oct-25.60782936)
0.00012606 TDB
period 1998.744277783963
5.47
2.5904e-05
7.092e-08
d
yr
n .1801130860017457 2.3343e-09 deg/d
Q 3.460061546701853 2.9895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      6718 days (18.39 yr)  
   first obs. used      2001-09-10  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5875  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:41:27  

Additional Information
 Earth MOID = 1.73817 au 
 Jupiter MOID = 1.80518 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 15.0   n/a MPO338372  
diameter diameter 5.360 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172009 (2001 UM59)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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