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1732 Heike (1943 EY)
Classification: Main-belt Asteroid          SPK-ID: 2001732
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116731841651384 3.3973e-08  
a 3.013928736675981 1.1573e-08 au
q 2.677353717804562 1.0255e-07 au
i 10.7756674472521 3.4057e-06 deg
node 155.6043941112064 2.0311e-05 deg
peri 211.6986731242641 2.5939e-05 deg
M 77.333195088791 1.6045e-05 deg
tp 2458589.954450123901
(2019-Apr-16.45445012)
8.5314e-05 TDB
period 1911.163734870924
5.23
1.1008e-05
3.014e-08
d
yr
n .1883669062108452 1.085e-09 deg/d
Q 3.350503755547401 1.2866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2906  
   data-arc span      41670 days (114.09 yr)  
   first obs. used      1906-03-17  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43015  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:29:17  

Additional Information
 Earth MOID = 1.68128 au 
 Jupiter MOID = 2.11054 au 
 T_jup = 3.212 
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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 10.9   n/a MPO324321  
diameter diameter 22.378 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.742 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[King, J.R.; Beaky, M.M. (2010) Minor Planet Bull. 37, 34.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.128   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1732 Heike (1943 EY)          Discovered 1943-Mar-09 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1943 EY = 1934 LC = 1935 TD = 1938 FC = 1938 GB = 1950 NR1 = 1951 WW = 1960 ME = 1961 TU1 = 1966 QJ = 1971 QY1 = A906 FA = A924 PB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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