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46234 (2001 HK9)
Classification: Main-belt Asteroid          SPK-ID: 2046234
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2277911850216176 3.7268e-08  
a 2.983160544618776 1.687e-08 au
q 2.303622869050331 1.0816e-07 au
i 9.554593294698316 3.7567e-06 deg
node 207.4527553981054 2.252e-05 deg
peri 122.9826769779739 2.3784e-05 deg
M 211.5176597581102 1.1249e-05 deg
tp 2459976.721503212313
(2023-Feb-01.22150321)
6.3463e-05 TDB
period 1881.972904664641
5.15
1.5964e-05
4.371e-08
d
yr
n .1912886201005909 1.6227e-09 deg/d
Q 3.662698220187222 2.0713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      8546 days (23.40 yr)  
   first obs. used      1997-10-29  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:37:58  

Additional Information
 Earth MOID = 1.30854 au 
 Jupiter MOID = 1.86091 au 
 T_jup = 3.198 
[ 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 13.55   n/a E2021B10  
diameter diameter 6.220 km 1.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.870 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.240   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46234 (2001 HK9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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