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1483 Hakoila (1938 DJ1)
Classification: Main-belt Asteroid          SPK-ID: 2001483
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777595561712724 3.2376e-08  
a 2.719983380959815 8.7707e-09 au
q 2.236480342367162 8.7045e-08 au
i 4.490147728515715 3.2258e-06 deg
node 71.85960751947746 4.6645e-05 deg
peri 88.39781869222315 4.7561e-05 deg
M 132.8922893203911 1.0754e-05 deg
tp 2458395.653621174725
(2018-Oct-04.15362117)
4.7722e-05 TDB
period 1638.505119376314
4.49
7.9251e-06
2.17e-08
d
yr
n .2197124657975018 1.0627e-09 deg/d
Q 3.203486419552469 1.033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2782  
   data-arc span      24072 days (65.91 yr)  
   first obs. used      1954-12-21  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:00:54  

Additional Information
 Earth MOID = 1.25062 au 
 Jupiter MOID = 1.79261 au 
 T_jup = 3.332 
[ 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 11.9   n/a MPO395005  
diameter diameter 10.633 km 0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 239.1 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:
[Polakis, T. (2019) Minor Planet Bull. 46, 400-406.]
geometric albedo albedo 0.237   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1483 Hakoila (1938 DJ1)          Discovered 1938-Feb-24 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 DJ1 = 1929 CG = 1963 VK = 1975 QE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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