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308577 (2005 US440)
Classification: Outer Main-belt Asteroid          SPK-ID: 2308577
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110004685102132 6.9068e-08  
a 3.219837555506569 5.4378e-08 au
q 2.865640339133051 2.3776e-07 au
i 15.90428473513998 7.1912e-06 deg
node 243.6025009353964 2.6183e-05 deg
peri 148.1592832598615 4.9822e-05 deg
M 192.9764930163864 4.2973e-05 deg
tp 2459979.594175006056
(2023-Feb-04.09417501)
0.00026741 TDB
period 2110.325123497501
5.78
5.346e-05
1.464e-07
d
yr
n .1705898280750986 4.3215e-09 deg/d
Q 3.574034771880088 6.036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      7500 days (20.53 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:34  

Additional Information
 Earth MOID = 1.886 au 
 Jupiter MOID = 1.85161 au 
 T_jup = 3.120 
[ 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 15.4   n/a MPO433986  

308577 (2005 US440)          Discovered 2005-Oct-29 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 US440 = 2010 KB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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