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249957 (2001 UG11)
Classification: Mars-crossing Asteroid          SPK-ID: 2249957
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 .3941215654143586 2.9548e-08  
a 2.624816494787897 1.7737e-08 au
q 1.590319708936661 7.852e-08 au
i 28.21959335547034 8.2226e-06 deg
node 170.9105086240463 9.4311e-06 deg
peri 286.1910628293929 1.6877e-05 deg
M 69.0240714221766 1.6173e-05 deg
tp 2458702.686130961412
(2019-Aug-07.18613096)
6.7596e-05 TDB
period 1553.26961514828
4.25
1.5744e-05
4.31e-08
d
yr
n .2317691638908634 2.3493e-09 deg/d
Q 3.659313280639132 2.4728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      6791 days (18.59 yr)  
   first obs. used      2001-09-25  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:47:47  

Additional Information
 Earth MOID = .790002 au 
 Jupiter MOID = 2.17772 au 
 T_jup = 3.133 
[ 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 15.5   n/a MPO454854  

249957 (2001 UG11)          Discovered 2001-Oct-18 by NEAT at Palomar
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 UG11 = 2003 EL53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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