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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621596896676911 2.5924e-08  
a 2.20565695885868 4.5591e-09 au
q 1.847988310896773 5.6552e-08 au
i 2.501495594514145 2.887e-06 deg
node 294.3627093533953 7.9205e-05 deg
peri .7601948729492087 7.9948e-05 deg
M 31.57457807890024 1.203e-05 deg
tp 2458895.560151056060
(2020-Feb-16.06015106)
3.9876e-05 TDB
period 1196.479823908204
3.28
3.7097e-06
1.016e-08
d
yr
n .300882633209885 9.3289e-10 deg/d
Q 2.563325606820587 5.2984e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3172  
   data-arc span      33674 days (92.19 yr)  
   first obs. used      1928-08-17  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:25  

Additional Information
 Earth MOID = .831973 au 
 Jupiter MOID = 2.61841 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456654.5 (2013-Dec-28.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626452576094258 2.599e-08  
q 1.846706464815122 5.6731e-08 au
tp 2456501.721695324814
(2013-Jul-28.22169532)
3.7968e-05 TDB
node 294.4396306030907 7.911e-05 deg
peri .5596858938704133 7.9849e-05 deg
i 2.503736419953869 2.8884e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3172  
   data-arc span      33674 days (92.19 yr)  
   first obs. used      1928-08-17  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:25  

Additional Information
 Jupiter MOID = 2.61841 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.754604346931414E-16 -1.471244528920087E-15 -3.576552253036632E-14 1.172880684196789E-17 -1.720649007469239E-14 1.173236738257775E-16
q -1.471244528920087E-15 3.218364711106746E-15 9.950062566079031E-14 4.317857055720978E-16 4.351569534926965E-14 -2.720887628167227E-16
tp -3.576552253036632E-14 9.950062566079031E-14 1.441532003252138E-9 2.775967014796015E-12 4.239978717457929E-10 -4.099054877874667E-13
node 1.172880684196789E-17 4.317857055720978E-16 2.775967014796015E-12 6.258410891278023E-9 -6.251269863347543E-9 -6.796111400153363E-12
peri -1.720649007469239E-14 4.351569534926965E-14 4.239978717457929E-10 -6.251269863347543E-9 6.375873136595542E-9 6.679683192244663E-12
i 1.173236738257775E-16 -2.720887628167227E-16 -4.099054877874667E-13 -6.796111400153363E-12 6.679683192244663E-12 8.342691727410164E-12

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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