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(2014 HM4)
Classification: Apollo [NEO]          SPK-ID: 3669052
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5299676617547207 2.9515e-06  
a 1.098790655085582 3.7662e-06 au
q .5164671408519383 4.0255e-06 au
i 1.314771829741693 9.454e-05 deg
node 30.83913328677711 0.00049772 deg
peri 297.9517680780281 0.00018825 deg
M 225.9432284143272 0.010987 deg
tp 2459357.159637842025
(2021-May-22.65963784)
0.013645 TDB
period 420.6984022965731
1.15
0.0021629
5.922e-06
d
yr
n .8557199124949766 4.3995e-06 deg/d
Q 1.681114169319226 5.7621e-06 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      3 days  
   first obs. used      2014-04-23  
   last obs. used      2014-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .51105  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 09:47:45  

Additional Information
 Earth MOID = .00165163 au 
 Jupiter MOID = 3.68464 au 
 T_jup = 5.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456771.5 (2014-Apr-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5303769985558665 2.9509e-06  
q .5138199323810547 4.1481e-06 au
tp 2456832.663848939642
(2014-Jun-24.16384894)
0.00013362 TDB
node 31.14411395928081 0.00012027 deg
peri 298.1191598184239 0.00041059 deg
i 1.381841038946587 8.8154e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      34  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      3 days  
   first obs. used      2014-04-23  
   last obs. used      2014-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .51105  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 09:47:45  

Additional Information
 Jupiter MOID = 3.68464 au 
 T_jup = 5.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.7075807854266E-12 -1.080658145359619E-11 -3.289015382937027E-10 1.836413839011452E-10 8.368829940179605E-10 1.790856635378601E-10
q -1.080658145359619E-11 1.720658787861332E-11 2.646243628129911E-10 -3.568560943833749E-10 -1.596594403439478E-9 -3.100220963993195E-10
tp -3.289015382937027E-10 2.646243628129911E-10 1.785561151616105E-8 -2.005291359392018E-9 -1.055568020727348E-8 -3.405824836532391E-9
node 1.836413839011452E-10 -3.568560943833749E-10 -2.005291359392018E-9 1.446463146861003E-8 3.044532217081541E-8 1.019708659138937E-8
peri 8.368829940179605E-10 -1.596594403439478E-9 -1.055568020727348E-8 3.044532217081541E-8 1.685878763910467E-7 2.670827632664297E-8
i 1.790856635378601E-10 -3.100220963993195E-10 -3.405824836532391E-9 1.019708659138937E-8 2.670827632664297E-8 7.771152666296365E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.9   n/a E2014H32  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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