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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08424863929976925 3.8183e-08  
a 2.215949015056935 1.7633e-08 au
q 2.029258325780724 8.4143e-08 au
i 3.832950232678633 6.5424e-06 deg
node 284.9265443278378 6.8744e-05 deg
peri 286.0357719018883 8.2248e-05 deg
M 273.2612122174913 4.6665e-05 deg
tp 2458890.801259623624
(2020-Feb-11.30125962)
0.00015669 TDB
period 1204.864122917558
3.30
1.4381e-05
3.937e-08
d
yr
n .2987888784739195 3.5663e-09 deg/d
Q 2.402639704333146 1.9118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      6309 days (17.27 yr)  
   first obs. used      2001-09-28  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:17:11  

Additional Information
 Earth MOID = 1.0273 au 
 Jupiter MOID = 2.57682 au 
 T_jup = 3.646 
[ 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 17.3   n/a MPO418331  
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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