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9053 Hamamelis (1991 VW5)
Classification: Main-belt Asteroid          SPK-ID: 2009053
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902796091740166 3.5876e-08  
a 2.559069161334162 9.6389e-09 au
q 2.072130481466219 9.1303e-08 au
i 9.234704514541249 3.7668e-06 deg
node 102.9940664627339 3.3312e-05 deg
peri 181.7969048039895 3.6936e-05 deg
M 99.21951879881802 1.5321e-05 deg
tp 2458588.387224891508
(2019-Apr-14.88722489)
6.3918e-05 TDB
period 1495.276341138881
4.09
8.4481e-06
2.313e-08
d
yr
n .2407581729848043 1.3602e-09 deg/d
Q 3.046007841202104 1.1473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2018  
   data-arc span      11315 days (30.98 yr)  
   first obs. used      1989-02-02  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:06:42  

Additional Information
 Earth MOID = 1.05571 au 
 Jupiter MOID = 2.11832 au 
 T_jup = 3.392 
[ 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 13.2   n/a MPO502237  
diameter diameter 5.816 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.386 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.363   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9053 Hamamelis           Discovered 1991 Nov. 2 by E. W. Elst at the European Southern Observatory.
Named for Hamamelidaceae, the witch hazel family, with about 25 genera and 100 species, typical in South America and Africa. Hamamelis virginiana (witch hazel) is not a true hazel, although the leaves are similar.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1991 VW5 = 1994 LD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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