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312884 (2011 UL242)
Classification: Main-belt Asteroid          SPK-ID: 2312884
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764989242433831 4.6462e-08  
a 2.583626747830344 2.1392e-08 au
q 2.127619406191858 1.1783e-07 au
i 1.343828985025342 6.8077e-06 deg
node 273.9857316507561 0.00029459 deg
peri 26.4181866738314 0.00029554 deg
M 118.0836537628427 2.5027e-05 deg
tp 2458502.957290499293
(2019-Jan-19.45729050)
0.00010353 TDB
period 1516.851568465072
4.15
1.8839e-05
5.158e-08
d
yr
n .237333703233923 2.9476e-09 deg/d
Q 3.039634089468831 2.5168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      6299 days (17.25 yr)  
   first obs. used      2002-07-29  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56096  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:06  

Additional Information
 Earth MOID = 1.11213 au 
 Jupiter MOID = 2.17963 au 
 T_jup = 3.401 
[ 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 17.2   n/a MPO450245  

312884 (2011 UL242)          Discovered 2002-Jul-29 by NEAT at Palomar
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 UL242 = 2002 PD137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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