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541646 (2011 UR238)
Classification: Main-belt Asteroid          SPK-ID: 2541646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09477123718489459 1.022e-07  
a 2.48178435412885 2.5241e-08 au
q 2.246582580461945 2.4676e-07 au
i 5.69298773041801 7.2713e-06 deg
node 245.0140315582325 7.5831e-05 deg
peri 320.7211391362563 8.2281e-05 deg
M 330.0617624749273 2.8208e-05 deg
tp 2459319.259461388800
(2021-Apr-14.75946139)
0.00011145 TDB
period 1428.053540699006
3.91
2.1786e-05
5.965e-08
d
yr
n .252091388551011 3.8458e-09 deg/d
Q 2.716986127795756 2.7633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      4919 days (13.47 yr)  
   first obs. used      2007-11-02  
   last obs. used      2021-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:29  

Additional Information
 Earth MOID = 1.24395 au 
 Jupiter MOID = 2.26379 au 
 T_jup = 3.465 
[ 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 17.74   n/a MPCxxxxx  

541646 (2011 UR238)          Discovered 2011-Oct-24 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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