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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451313599057976 4.2159e-08  
a 2.685634632902834 1.8922e-08 au
q 2.295864826419538 1.0917e-07 au
i 10.67604773437304 4.7952e-06 deg
node 235.1496773049084 2.3979e-05 deg
peri 256.7716513081817 3.1146e-05 deg
M 169.3997858379716 2.0058e-05 deg
tp 2458640.051830647077
(2019-Jun-05.55183065)		 8.5505e-05 TDB
period 1607.566028610707
4.40		 1.699e-05
4.652e-08		 d
yr
n .2239410348271166 2.3667e-09 deg/d
Q 3.075404439386129 2.1668e-08 au
   Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      2000-11-30  
   last obs. used      2021-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:47:45  

Additional Information
 Earth MOID = 1.339 au 
 Jupiter MOID = 2.11789 au 
 T_jup = 3.335 
[ 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 16.05   n/a E2021B55  
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
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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