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387746 (2003 MH4)
Classification: Apollo [NEO, PHA]          SPK-ID: 2387746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5138291745010081 2.4041e-08  
a 1.963396587793886 5.1027e-09 au
q .9545461398696575 4.7672e-08 au
i 3.884148959881754 6.1164e-06 deg
node 259.818022567249 0.00010896 deg
peri 323.0484678977646 0.00010277 deg
M 75.0019520493984 8.761e-06 deg
tp 2458791.146348234174
(2019-Nov-03.64634823)
2.4522e-05 TDB
period 1004.871374361807
2.75
3.9173e-06
1.072e-08
d
yr
n .3582548067195522 1.3966e-09 deg/d
Q 2.972247035718115 7.7246e-09 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      4236 days (11.60 yr)  
   first obs. used      2003-01-26  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52168  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:22:05  

Additional Information
 Earth MOID = .00288104 au 
 Jupiter MOID = 2.02507 au 
 T_jup = 3.702 
[ 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 20.0   n/a E2014D58  
diameter diameter 0.366 km 0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.132   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

387746 (2003 MH4)          Discovered 2003-Jun-26 by LINEAR at Socorro
Reference: Last Updated: 2014-03-21

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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