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(2014 HG4)
Classification: Apollo [NEO]          SPK-ID: 3669017
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7860730859038961 2.9539e-05  
a 2.77107239058024 0.0003014 au
q .5928069652537442 1.7388e-05 au
i 4.536448079635536 0.00011404 deg
node 109.2919029840941 0.0013475 deg
peri 210.5291927297963 0.00088163 deg
M 100.4976055093281 0.074743 deg
tp 2458530.147510220218
(2019-Feb-15.64751022)
0.27308 TDB
period 1684.884883202563
4.61
0.27489
0.0007526
d
yr
n .213664448882541 3.4859e-05 deg/d
Q 4.949337815906735 0.00053832 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      231 days  
   first obs. used      2014-04-04  
   last obs. used      2014-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .39774  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Aug-10 06:18:10  

Additional Information
 Earth MOID = .0660117 au 
 Jupiter MOID = .422774 au 
 T_jup = 2.777 
[ show covariance matrix ]

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 19.8   n/a MPO297956  
diameter diameter 0.975 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.022   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

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