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249487 (2009 UP87)
Classification: Main-belt Asteroid          SPK-ID: 2249487
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461007471716312 4.5869e-08  
a 2.682537588702008 1.9986e-08 au
q 2.290616842676659 1.2147e-07 au
i 10.68670152312792 5.0633e-06 deg
node 235.2145065602949 2.9449e-05 deg
peri 256.367240129005 3.6779e-05 deg
M 80.97638181211244 2.051e-05 deg
tp 2458639.528413615077
(2019-Jun-05.02841362)		 8.9992e-05 TDB
period 1604.786089357407
4.39		 1.7934e-05
4.91e-08		 d
yr
n .2243289634596423 2.507e-09 deg/d
Q 3.074458334727358 2.2906e-08 au
   Orbit Determination Parameters
   # obs. used (total)      324  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2000-11-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:44:36  

Additional Information
 Earth MOID = 1.33326 au 
 Jupiter MOID = 2.1212 au 
 T_jup = 3.336 
[ 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 16.1   n/a MPO470662  
diameter diameter 3.648 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249487 (2009 UP87)          Discovered 2009-Oct-24 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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