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308539 (2005 UM182)
Classification: Main-belt Asteroid          SPK-ID: 2308539
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1106547971468911 5.4154e-08  
a 2.564445318005123 2.3665e-08 au
q 2.280677141546971 1.5016e-07 au
i 4.498103152315462 7.4112e-06 deg
node 229.7698659996671 5.9433e-05 deg
peri 108.1369495546816 6.7997e-05 deg
M 262.0152856673938 3.4722e-05 deg
tp 2459408.767135211126
(2021-Jul-13.26713521)
0.00014608 TDB
period 1499.990786084237
4.11
2.0763e-05
5.685e-08
d
yr
n .2400014742355777 3.3222e-09 deg/d
Q 2.848213494463274 2.6284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      2001-11-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5022  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:17  

Additional Information
 Earth MOID = 1.27659 au 
 Jupiter MOID = 2.49636 au 
 T_jup = 3.420 
[ 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 16.8   n/a MPO433985  
diameter diameter 3.146 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308539 (2005 UM182)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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