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312899 (2011 US296)
Classification: Main-belt Asteroid          SPK-ID: 2312899
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727755944055303 6.2282e-08  
a 3.048609902224384 4.3786e-08 au
q 2.521884514256981 2.1135e-07 au
i 19.17594346596332 1.0194e-05 deg
node 48.09740423570803 1.8017e-05 deg
peri 240.6607039090383 3.6133e-05 deg
M 316.1041194469159 3.1018e-05 deg
tp 2459237.567748670034
(2021-Jan-23.06774867)
0.00016758 TDB
period 1944.24598495077
5.32
4.1887e-05
1.147e-07
d
yr
n .1851617556556844 3.9891e-09 deg/d
Q 3.575335290191788 5.1352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6262 days (17.14 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:28:50  

Additional Information
 Earth MOID = 1.56507 au 
 Jupiter MOID = 1.72079 au 
 T_jup = 3.131 
[ 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 15.7   n/a MPO471275  
diameter diameter 4.810 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312899 (2011 US296)          Discovered 2004-Apr-22 by LINEAR at Socorro
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 US296 = 2004 HL47 = 2010 HT41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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