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1758 Naantali (1942 DK)
Classification: Main-belt Asteroid          SPK-ID: 2001758
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03111263109376095 3.0105e-08  
a 3.006718087094819 1.1277e-08 au
q 2.913171176448099 9.2906e-08 au
i 10.82383146661982 3.6688e-06 deg
node 113.6885220083515 1.8433e-05 deg
peri 114.9898113671228 6.772e-05 deg
M 301.0100796536824 6.6007e-05 deg
tp 2459312.541819101888
(2021-Apr-08.04181910)
0.00034952 TDB
period 1904.309316187983
5.21
1.0713e-05
2.933e-08
d
yr
n .1890449187743525 1.0635e-09 deg/d
Q 3.100264997741539 1.1628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3162  
   data-arc span      28609 days (78.33 yr)  
   first obs. used      1942-02-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:36:08  

Additional Information
 Earth MOID = 1.91815 au 
 Jupiter MOID = 1.97772 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456608.5 (2013-Nov-12.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03406150583720171 3.0521e-08  
q 2.905486582440643 9.4844e-08 au
tp 2457386.912431100680
(2015-Dec-30.41243110)
0.00031256 TDB
node 113.7391109477225 1.8418e-05 deg
peri 111.2224404694312 6.1416e-05 deg
i 10.82686625741275 3.6679e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3162  
   data-arc span      28609 days (78.33 yr)  
   first obs. used      1942-02-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:36:08  

Additional Information
 Jupiter MOID = 1.97772 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.315107105848119E-16 -2.876101963848157E-15 -1.697679128813473E-12 1.992469990554048E-15 -2.921490648398906E-13 7.053846763714529E-17
q -2.876101963848157E-15 8.995308402977884E-15 5.900996510865771E-12 -6.324628250272226E-15 1.016585280095981E-12 -9.962553055154927E-17
tp -1.697679128813473E-12 5.900996510865771E-12 9.769176238229734E-8 -1.174311620708478E-11 1.832359877657338E-8 9.654294877213565E-12
node 1.992469990554048E-15 -6.324628250272226E-15 -1.174311620708478E-11 3.392281328208593E-10 -3.352246097943252E-10 1.283844936380904E-11
peri -2.921490648398906E-13 1.016585280095981E-12 1.832359877657338E-8 -3.352246097943252E-10 3.771915451361442E-9 -1.082434804994712E-11
i 7.053846763714529E-17 -9.962553055154927E-17 9.654294877213565E-12 1.283844936380904E-11 -1.082434804994712E-11 1.345327101164904E-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 11.2   n/a MPO384764  
rotation period rot_per 5.4699 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[DeGraff, D.R. (2017) Minor Planet Bull. 44, 350-354.]

1758 Naantali           Discovered 1942 Feb. 18 by L. Oterma at Turku.
Named for an idyllic small town near Turku, founded in the early fifteenth century around a convent and monastery. The summer residence of the Finnish president is located 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 5449Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1942 DK = 1959 NL = 1963 FD = 1966 WB = 1968 CC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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