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JPL Small-Body Database Browser
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390725 (2003 HB)
Classification: Aten [NEO, PHA]          SPK-ID: 2390725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3805074753332406 1.8579e-07  
a .8496575297528248 3.4936e-09 au
q .5263564882086997 1.5881e-07 au
i 18.10938609562533 2.6775e-05 deg
node 70.3858333350004 5.3835e-05 deg
peri 306.7550173247943 4.8823e-05 deg
M 350.4016560755451 5.2676e-05 deg
tp 2458608.127076444603
(2019-May-04.62707644)
4.1895e-05 TDB
period 286.0647150870975
0.78
1.7644e-06
4.831e-09
d
yr
n 1.258456499573503 7.7617e-09 deg/d
Q 1.17295857129695 4.8229e-09 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      5481 days (15.01 yr)  
   first obs. used      2003-04-21  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62224  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-14 07:56:39  

Additional Information
 Earth MOID = .0462414 au 
 Jupiter MOID = 4.31125 au 
 T_jup = 6.834 
[ 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 19.7   n/a MPO258313  
diameter diameter 0.293 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.271   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

390725 (2003 HB)          Discovered 2003-Apr-21 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

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