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312887 (2011 US253)
Classification: Inner Main-belt Asteroid          SPK-ID: 2312887
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130203109811938 5.9182e-08  
a 1.966198906589852 1.4414e-08 au
q 1.743978494716184 1.1211e-07 au
i 22.79558010023393 6.5219e-06 deg
node 65.11160185877736 1.4715e-05 deg
peri 49.26761621549881 5.9472e-05 deg
M 351.2661213047668 5.7306e-05 deg
tp 2459024.931169522878
(2020-Jun-24.43116952)
0.0001605 TDB
period 1007.023492670717
2.76
1.1074e-05
3.032e-08
d
yr
n .3574891773827912 3.9312e-09 deg/d
Q 2.188419318463521 1.6044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      6939 days (19.00 yr)  
   first obs. used      2000-11-21  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62927  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 19:05:40  

Additional Information
 Earth MOID = .801745 au 
 Jupiter MOID = 3.10265 au 
 T_jup = 3.773 
[ 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 MPO334714  

312887 (2011 US253)          Discovered 2000-Dec-19 by LINEAR at Socorro
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 US253 = 2000 YA5 = 2010 LL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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