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277439 (2005 UR440)
Classification: Main-belt Asteroid          SPK-ID: 2277439
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 .1636753676351847 4.2446e-08  
a 2.555349919374238 2.8477e-08 au
q 2.13710208188412 1.1628e-07 au
i 8.030050450480925 2.1615e-05 deg
node 6.024530496625943 3.7268e-05 deg
peri 85.88529167640574 0.00011082 deg
M 164.9398186417946 0.00010191 deg
tp 2458316.907943557806
(2018-Jul-17.40794356)
0.00041546 TDB
period 1492.017769545622
4.08
2.4941e-05
6.828e-08
d
yr
n .2412839896066614 4.0334e-09 deg/d
Q 2.973597756864356 3.3138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      6353 days (17.39 yr)  
   first obs. used      2001-11-12  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:34:29  

Additional Information
 Earth MOID = 1.17135 au 
 Jupiter MOID = 2.25684 au 
 T_jup = 3.405 
[ 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 17.1   n/a MPO423064  

277439 (2005 UR440)          Discovered 2005-Oct-29 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 UR440 = 2009 SD251 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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