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1947 Iso-Heikkila (1935 EA)
Classification: Main-belt Asteroid          SPK-ID: 2001947
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0380854170405678 3.6731e-08  
a 3.153918584960598 1.4814e-08 au
q 3.033800280340376 1.172e-07 au
i 11.9129847018407 3.8188e-06 deg
node 90.91201781664199 1.7799e-05 deg
peri 145.1195322882288 5.3677e-05 deg
M 13.84699196282079 4.877e-05 deg
tp 2458921.808634110593
(2020-Mar-13.30863411)
0.00027742 TDB
period 2045.851676396555
5.60
1.4414e-05
3.946e-08
d
yr
n .1759658357218169 1.2398e-09 deg/d
Q 3.274036889580819 1.5379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2646  
   data-arc span      31261 days (85.59 yr)  
   first obs. used      1935-03-03  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:13:59  

Additional Information
 Earth MOID = 2.02716 au 
 Jupiter MOID = 1.79262 au 
 T_jup = 3.172 
[ 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 11.4   n/a MPO302072  
diameter diameter 31.611 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.0158 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A. (2010) Astron. Astrophys. 514, A55.]
geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1947 Iso-Heikkila           Discovered 1935 Mar. 4 by Y. Vaisala at Turku.
Named for the farm, owned by Turku University, that became the site of the Turku Observatory. This minor planet was the first one to be discovered there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5450Last Updated: 2006-03-21

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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