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434419 (2005 MH4)
Classification: Mars-crossing Asteroid          SPK-ID: 2434419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2954878864766594 7.5605e-08  
a 2.26819376207817 2.0047e-08 au
q 1.597969981202149 1.5972e-07 au
i 6.811850129912017 6.6362e-06 deg
node 84.19988352643411 0.00010623 deg
peri 214.2713993657279 0.00011167 deg
M 114.4682479409787 3.9419e-05 deg
tp 2458603.764384700605
(2019-Apr-30.26438470)
0.00013244 TDB
period 1247.724360919935
3.42
1.6542e-05
4.529e-08
d
yr
n .2885252634921511 3.8251e-09 deg/d
Q 2.938417542954192 2.5971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      5278 days (14.45 yr)  
   first obs. used      2005-06-16  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5526  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:02:04  

Additional Information
 Earth MOID = .587761 au 
 Jupiter MOID = 2.30143 au 
 T_jup = 3.547 
[ 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 18.1   n/a MPO237341  

434419 (2005 MH4)          Discovered 2005-Jun-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

Alternate Designations
 2005 MH4 = 2009 WN223 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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