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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 ]

[ hide orbit diagram ]

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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .295421619080459 7.572e-08  
a 2.26846555588713 2.0004e-08 au
q 1.5983117885387 1.6004e-07 au
i 6.811176297053301 6.6344e-06 deg
node 84.19848296213856 0.00010624 deg
peri 214.300568093159 0.00011168 deg
M 172.126305431534 4.0034e-05 deg
tp 2458603.820032779047
(2019-Apr-30.32003278)
0.0001325 TDB
period 1247.948636677065
3.42
1.6507e-05
4.519e-08
d
yr
n .2884734110200067 3.8158e-09 deg/d
Q 2.93861932323556 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:16:01  

Additional Information
 Earth MOID = .586162 au 
 Jupiter MOID = 2.3009 au 
 T_jup = 3.546 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457872.5 (2017-Apr-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2955746074642793 7.5793e-08  
q 1.597381371549567 1.6035e-07 au
tp 2457356.731236042629
(2015-Nov-30.23123604)
0.00012021 TDB
node 84.20317587403217 0.00010626 deg
peri 214.3242708681587 0.00011171 deg
i 6.811469271255586 6.639e-06 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:16:01  

Additional Information
 Jupiter MOID = 2.3009 au 
 T_jup = 3.546 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.744546493675291E-15 -1.214015200133845E-14 7.292162406772974E-12 3.351692086991607E-13 2.175229705362631E-12 -5.493684944610822E-14
q -1.214015200133845E-14 2.571250427186097E-14 -1.533233291641498E-11 -7.088370335649598E-13 -4.562197378101938E-12 1.153978738704873E-13
tp 7.292162406772974E-12 -1.533233291641498E-11 1.445109021118035E-8 6.10479388012424E-10 4.405860745922741E-9 -1.018706956333763E-10
node 3.351692086991607E-13 -7.088370335649598E-13 6.10479388012424E-10 1.129123838700721E-8 -1.100561750818309E-8 -5.027677597345817E-10
peri 2.175229705362631E-12 -4.562197378101938E-12 4.405860745922741E-9 -1.100561750818309E-8 1.248018527068502E-8 4.64252466123542E-10
i -5.493684944610822E-14 1.153978738704873E-13 -1.018706956333763E-10 -5.027677597345817E-10 4.64252466123542E-10 4.40764867622979E-11

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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