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1496 Turku (1938 SA1)
Classification: Main-belt Asteroid          SPK-ID: 2001496
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621596993883172 3.3658e-08  
a 2.20565696035833 5.6124e-09 au
q 1.847988290712874 7.5547e-08 au
i 2.501490013975924 3.5661e-06 deg
node 294.3626684313179 8.0266e-05 deg
peri .7602269085825601 8.1054e-05 deg
M 31.57458273545269 1.3423e-05 deg
tp 2458895.560135472727
(2020-Feb-16.06013547)
4.4414e-05 TDB
period 1196.479825128454
3.28
4.5668e-06
1.25e-08
d
yr
n .3008826329030249 1.1484e-09 deg/d
Q 2.563325630003787 6.5225e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2764  
   data-arc span      33237 days (91.00 yr)  
   first obs. used      1928-08-17  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43977  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:18:08  

Additional Information
 Earth MOID = .831973 au 
 Jupiter MOID = 2.61841 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456083.5 (2012-Jun-05.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628366560788017 3.3741e-08  
q 1.84614353594256 7.5741e-08 au
tp 2456501.949630248680
(2013-Jul-28.44963025)
4.0573e-05 TDB
node 294.4504952413068 8.0182e-05 deg
peri .6600868618264328 8.0964e-05 deg
i 2.503691323744023 3.5677e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2764  
   data-arc span      33237 days (91.00 yr)  
   first obs. used      1928-08-17  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43977  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:18:08  

Additional Information
 Jupiter MOID = 2.61841 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.138425091161386E-15 -2.551048030832008E-15 -3.401247880600178E-13 1.050259950430254E-15 -7.327936439511207E-14 -1.917766297870634E-16
q -2.551048030832008E-15 5.736747133591022E-15 8.085233512788958E-13 -2.024379191554123E-15 1.741601514003439E-13 4.862323364245558E-16
tp -3.401247880600178E-13 8.085233512788958E-13 1.646133304061279E-9 -8.712597730992279E-13 4.652052023735147E-10 8.250271663231248E-13
node 1.050259950430254E-15 -2.024379191554123E-15 -8.712597730992279E-13 6.429144093574868E-9 -6.422834581900425E-9 -2.59219126423676E-11
peri -7.327936439511207E-14 1.741601514003439E-13 4.652052023735147E-10 -6.422834581900425E-9 6.555228816746665E-9 2.612708899453476E-11
i -1.917766297870634E-16 4.862323364245558E-16 8.250271663231248E-13 -2.59219126423676E-11 2.612708899453476E-11 1.272883808211034E-11

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 12.6   n/a MPO473784  
diameter diameter 7.758 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.47 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.203   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1496 Turku (1938 SA1)          Discovered 1938-Sep-22 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 SA1 = 1928 QN = 1928 RE = 1950 EC = 1954 MH = 1957 HB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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