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JPL Small-Body Database Browser
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201486 (2003 HX21)
Classification: Main-belt Asteroid          SPK-ID: 2201486
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875360264958934 4.6031e-08  
a 2.344003346877137 1.3695e-08 au
q 1.904418273110724 1.0607e-07 au
i 2.660572322867287 6.4365e-06 deg
node 155.73172746881 0.00011134 deg
peri 87.88027670476522 0.00011276 deg
M 146.6592860158717 1.887e-05 deg
tp 2458066.498061398807
(2017-Nov-08.99806140)
6.6455e-05 TDB
period 1310.797993900127
3.59
1.1487e-05
3.145e-08
d
yr
n .274641860664481 2.4068e-09 deg/d
Q 2.783588420643551 1.6263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      5653 days (15.48 yr)  
   first obs. used      2003-03-26  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60648  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:11:25  

Additional Information
 Earth MOID = .89354 au 
 Jupiter MOID = 2.23711 au 
 T_jup = 3.537 
[ 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 17.1   n/a MPO454428  
diameter diameter 2.440 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201486 (2003 HX21)          Discovered 2003-Apr-27 by LONEOS at Anderson Mesa
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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