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308570 (2005 UM402)
Classification: Main-belt Asteroid          SPK-ID: 2308570
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 .1817811889629773 1.2102e-07  
a 3.173966765763483 4.6218e-08 au
q 2.596999313354022 3.8023e-07 au
i 2.175651903409908 9.1354e-06 deg
node 131.3671515889518 0.000294 deg
peri 257.791529726755 0.00029631 deg
M 210.4483681451845 3.5861e-05 deg
tp 2459858.506632193614
(2022-Oct-06.00663219)
0.00021876 TDB
period 2065.389616674751
5.65
4.5113e-05
1.235e-07
d
yr
n .1743012539104341 3.8072e-09 deg/d
Q 3.750934218172945 5.462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      7569 days (20.72 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:33  

Additional Information
 Earth MOID = 1.60323 au 
 Jupiter MOID = 1.69669 au 
 T_jup = 3.174 
[ 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 16.3   n/a MPO433986  

308570 (2005 UM402)          Discovered 2005-Oct-28 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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