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15252 Yoshiken (1990 OD1)
Classification: Main-belt Asteroid          SPK-ID: 2015252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315813233977463 1.2639e-08  
a 2.316872616403998 7.1404e-09 au
q 2.012015451393561 2.962e-08 au
i 7.521101331677296 6.0482e-07 deg
node 127.5065415180183 6.5513e-06 deg
peri 157.0098166424696 1.0601e-05 deg
M 296.8633638629019 9.6823e-06 deg
tp 2459622.407474421901
(2022-Feb-11.90747442)
3.5134e-05 TDB
period 1288.106173653084
3.53
5.9547e-06
1.63e-08
d
yr
n .279480067220729 1.292e-09 deg/d
Q 2.621729781414435 8.0799e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2192  
   data-arc span      14360 days (39.32 yr)  
   first obs. used      1982-02-21  
   last obs. used      2021-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:46:14  

Additional Information
 Earth MOID = .997683 au 
 Jupiter MOID = 2.52676 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457458.5 (2016-Mar-11.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132119797162622 1.2606e-08  
q 2.010693498669135 2.9558e-08 au
tp 2457045.801075837330
(2015-Jan-23.30107584)
3.1117e-05 TDB
node 127.5527692227721 6.5528e-06 deg
peri 156.9383628496689 1.0586e-05 deg
i 7.5209898622235 6.0508e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2192  
   data-arc span      14360 days (39.32 yr)  
   first obs. used      1982-02-21  
   last obs. used      2021-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:46:14  

Additional Information
 Jupiter MOID = 2.52676 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.589034304556705E-16 -3.644158059812627E-16 3.140870214390305E-14 -1.888024721918339E-14 1.141873402606998E-14 -1.590759577713527E-15
q -3.644158059812627E-16 8.736608785371372E-16 -4.223039061174108E-14 4.584875892821214E-14 -1.794883085545157E-14 3.829675058827199E-15
tp 3.140870214390305E-14 -4.223039061174108E-14 9.682523532297722E-10 2.081677669317138E-11 2.623122232367797E-10 -9.064308257909727E-13
node -1.888024721918339E-14 4.584875892821214E-14 2.081677669317138E-11 4.293869401761796E-11 -3.49977413705728E-11 2.821917696767963E-12
peri 1.141873402606998E-14 -1.794883085545157E-14 2.623122232367797E-10 -3.49977413705728E-11 1.120551374815945E-10 -2.863446280212426E-12
i -1.590759577713527E-15 3.829675058827199E-15 -9.064308257909727E-13 2.821917696767963E-12 -2.863446280212426E-12 3.66116153863957E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.15   n/a MPO614063  
diameter diameter 3.385 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 22.218 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.425   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15252 Yoshiken           Discovered 1990 July 20 by T. Seki at Geisei.
Kenichi Yoshioka (b. 1948) was a primary school principal. He joined the staff of Geisei Observatory in 2008 and is involved in astronomy education for children.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-09-19Last Updated: 2013-09-23

Alternate Designations
 1990 OD1 = 1982 DM2 = 2000 GV87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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