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30372 Halback (2000 JK62)
Classification: Main-belt Asteroid          SPK-ID: 2030372
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188198881406486 2.6257e-08  
a 2.530639701180834 8.8906e-09 au
q 2.229949374962243 6.8817e-08 au
i 3.195031132270529 3.776e-06 deg
node 78.27674107270104 6.2424e-05 deg
peri 226.6617803303957 6.524e-05 deg
M 348.9413467442016 1.9821e-05 deg
tp 2459245.669329372343
(2021-Jan-31.16932937)
8.0994e-05 TDB
period 1470.428468811722
4.03
7.7489e-06
2.122e-08
d
yr
n .2448265982573924 1.2902e-09 deg/d
Q 2.831330027399425 9.947e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1729  
   data-arc span      11211 days (30.69 yr)  
   first obs. used      1989-11-04  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:34:16  

Additional Information
 Earth MOID = 1.21425 au 
 Jupiter MOID = 2.37023 au 
 T_jup = 3.439 
[ 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 15.17   n/a E2021B10  
diameter diameter 2.535 km 0.713 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.877 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.301   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30372 Halback           Discovered 2000 May 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Damon Halback mentored a finalist in the 2015 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the Harker School, San Jose, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-07-02Last Updated: 2015-07-06

[ show close-approach data ]
Alternate Designations
 2000 JK62 = 1992 LM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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