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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764129449239104 3.4542e-08  
a 2.718995960551642 9.0939e-09 au
q 2.23932987591451 9.3353e-08 au
i 4.495196114938914 4.3991e-06 deg
node 71.89633810676217 5.1437e-05 deg
peri 88.19725860425382 5.3101e-05 deg
M 45.31358049417896 1.2526e-05 deg
tp 2458394.371924087522
(2018-Oct-02.87192409)
5.6806e-05 TDB
period 1637.612974283166
4.48
8.2157e-06
2.249e-08
d
yr
n .2198321615994665 1.1029e-09 deg/d
Q 3.198662045188774 1.0698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2348  
   data-arc span      23618 days (64.66 yr)  
   first obs. used      1954-12-21  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45893  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:18:00  

Additional Information
 Earth MOID = 1.25401 au 
 Jupiter MOID = 1.79914 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 12. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
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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