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249317 (2008 UE201)
Classification: Main-belt Asteroid          SPK-ID: 2249317
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2222682408761405 4.4425e-08  
a 2.557071065183951 1.9123e-08 au
q 1.988715377730235 1.2073e-07 au
i 13.27452729267445 1.1072e-05 deg
node 32.59004687720213 1.8375e-05 deg
peri 68.32810748165332 3.8523e-05 deg
M 259.7645017139064 3.5897e-05 deg
tp 2459416.345184481912
(2021-Jul-20.84518448)
0.00015196 TDB
period 1493.525437327603
4.09
1.6754e-05
4.587e-08
d
yr
n .2410404208743547 2.704e-09 deg/d
Q 3.125426752637666 2.3374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      7249 days (19.85 yr)  
   first obs. used      2000-12-04  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58185  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:18:47  

Additional Information
 Earth MOID = 1.04722 au 
 Jupiter MOID = 2.225 au 
 T_jup = 3.365 
[ 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 16.6   n/a MPO450107  
diameter diameter 3.580 km 0.745 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249317 (2008 UE201)          Discovered 2008-Oct-28 by LINEAR at Socorro
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2108-Dec-20 14:35 00:02 Eunom 0.0447059275633602 0.0446813668260149 0.0447304905720218 6.57938192385751 6.57938187613276 2491345.107924693 2.34532203734189 1324.99751929937 161.355322639874 -22.6586533941281 16626.005820194 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 00:18:48 2020-Nov-12 00:18

Alternate Designations
 2008 UE201 = 2000 XF48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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