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249306 (2008 UT74)
Classification: Main-belt Asteroid          SPK-ID: 2249306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08468660486683373 3.5749e-08  
a 2.216553911914796 1.5743e-08 au
q 2.028841486610433 7.5654e-08 au
i 3.832234706262241 5.9348e-06 deg
node 284.9248701604032 6.0489e-05 deg
peri 286.2855160650473 7.1221e-05 deg
M 92.26393477295302 3.6312e-05 deg
tp 2458891.580483551284
(2020-Feb-12.08048355)
0.00012217 TDB
period 1205.357501771526
3.30
1.2842e-05
3.516e-08
d
yr
n .2986665777339125 3.1819e-09 deg/d
Q 2.404266337219159 1.7076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      6871 days (18.81 yr)  
   first obs. used      2001-09-28  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51071  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:06:58  

Additional Information
 Earth MOID = 1.02562 au 
 Jupiter MOID = 2.57324 au 
 T_jup = 3.645 
[ 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 17.45   n/a E2021B55  
diameter diameter 1.804 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.059   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249306 (2008 UT74)          Discovered 2008-Oct-21 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 UT74 = 2005 XS31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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