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JPL Small-Body Database Browser
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295346 (2008 HX21)
Classification: Main-belt Asteroid          SPK-ID: 2295346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1837551081893158 5.0256e-08  
a 2.793074704937135 3.4457e-08 au
q 2.279832960350571 1.438e-07 au
i 13.80537156287292 8.0105e-06 deg
node 47.64393498515155 2.4803e-05 deg
peri 263.8532104084408 3.6721e-05 deg
M 151.2499533414259 3.4196e-05 deg
tp 2458284.166926872848
(2018-Jun-14.66692687)
0.0001551 TDB
period 1704.991642170272
4.67
3.1551e-05
8.638e-08
d
yr
n .2111447300361886 3.9072e-09 deg/d
Q 3.3063164495237 4.0789e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6491 days (17.77 yr)  
   first obs. used      2000-11-30  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63923  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:00:30  

Additional Information
 Earth MOID = 1.31609 au 
 Jupiter MOID = 2.11169 au 
 T_jup = 3.262 
[ 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 15.9   n/a MPO455183  

295346 (2008 HX21)          Discovered 2008-Apr-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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