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46246 (2001 HX20)
Classification: Main-belt Asteroid          SPK-ID: 2046246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684569928191087 3.4663e-08  
a 3.198815929444842 1.7228e-08 au
q 2.659953017388702 1.0795e-07 au
i 6.367850975730646 4.8254e-06 deg
node 218.0821540397665 3.0934e-05 deg
peri 88.65837448072162 3.4063e-05 deg
M 81.53333076313105 1.4122e-05 deg
tp 2458727.223451120149
(2019-Aug-31.72345112)
8.1026e-05 TDB
period 2089.692105081901
5.72
1.6882e-05
4.622e-08
d
yr
n .1722741829404052 1.3917e-09 deg/d
Q 3.737678841500982 2.013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1123  
   data-arc span      8537 days (23.37 yr)  
   first obs. used      1997-09-29  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:47:19  

Additional Information
 Earth MOID = 1.65316 au 
 Jupiter MOID = 1.57915 au 
 T_jup = 3.163 
[ 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 14.15   n/a MPCxxxxx  
diameter diameter 9.337 km 0.399 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46246 (2001 HX20)          Discovered 2001-Apr-23 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HX20 = 1997 TD24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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