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312838 (2011 UL17)
Classification: Outer Main-belt Asteroid          SPK-ID: 2312838
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131316840420736 6.0962e-08  
a 3.233674164310957 3.9572e-08 au
q 2.867843160459113 1.9286e-07 au
i 5.1754386534071 7.6336e-06 deg
node 35.64102691496858 5.9949e-05 deg
peri 74.60487001101689 6.8684e-05 deg
M 122.1977217107508 3.4696e-05 deg
tp 2458279.552865153523
(2018-Jun-10.05286515)		 0.00019971 TDB
period 2123.942778238374
5.82		 3.8987e-05
1.067e-07		 d
yr
n .1694960917443306 3.1113e-09 deg/d
Q 3.599505168162801 4.4048e-08 au
   Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      8879 days (24.31 yr)  
   first obs. used      1996-03-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:45:51  

Additional Information
 Earth MOID = 1.89021 au 
 Jupiter MOID = 1.53687 au 
 T_jup = 3.169 
[ 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 15.8   n/a MPO434005  

312838 (2011 UL17)          Discovered 2002-Apr-08 by NEAT at Palomar
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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