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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .295421696157409 7.572e-08  
a 2.268465568346965 2.0004e-08 au
q 1.598311622471224 1.6004e-07 au
i 6.811169443462047 6.6344e-06 deg
node 84.19848029852378 0.00010624 deg
peri 214.3005887753674 0.00011168 deg
M 172.1262824133403 4.0034e-05 deg
tp 2458603.820107656158
(2019-Apr-30.32010766)
0.0001325 TDB
period 1247.94864695884
3.42
1.6507e-05
4.519e-08
d
yr
n .2884734086432915 3.8158e-09 deg/d
Q 2.938619514222706 2.5914e-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 = .586162 au 
 Jupiter MOID = 2.3009 au 
 T_jup = 3.546 
[ 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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