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JPL Small-Body Database Browser
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423645 (2005 YM4)
Classification: Main-belt Asteroid          SPK-ID: 2423645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357931043873457 7.1818e-08  
a 2.723639977441541 3.2161e-08 au
q 2.353788449671274 2.0631e-07 au
i 6.013019358212553 8.3581e-06 deg
node 104.6288383128771 8.3192e-05 deg
peri 339.2984189315036 0.00010098 deg
M 91.30231525557016 4.9914e-05 deg
tp 2458584.108105597327
(2019-Apr-10.60810560)
0.00022699 TDB
period 1641.810304211502
4.50
2.908e-05
7.962e-08
d
yr
n .2192701550700122 3.8837e-09 deg/d
Q 3.093491505211809 3.6528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      5144 days (14.08 yr)  
   first obs. used      2005-12-22  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48846  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 08:06:18  

Additional Information
 Earth MOID = 1.37108 au 
 Jupiter MOID = 2.11492 au 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a E2013R05  

423645 (2005 YM4)          Discovered 2005-Dec-22 by Merlin, J.-C. at Nogales
Reference: Last Updated: 2015-02-04

Alternate Designations
 2005 YM4 = 2009 WM94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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