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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315795229841349 1.366e-08  
a 2.317264200774007 7.5629e-09 au
q 2.01235968260795 3.1213e-08 au
i 7.521064756418193 6.066e-07 deg
node 127.5065090970896 6.568e-06 deg
peri 156.9356083958905 1.0606e-05 deg
M 242.1697703811965 9.5917e-06 deg
tp 2459622.212018770771
(2022-Feb-11.71201877)
3.5273e-05 TDB
period 1288.432749801333
3.53
6.3076e-06
1.727e-08
d
yr
n .2794092280373262 1.3679e-09 deg/d
Q 2.622168718940063 8.558e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1977  
   data-arc span      14276 days (39.09 yr)  
   first obs. used      1982-02-21  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:59:54  

Additional Information
 Earth MOID = .996433 au 
 Jupiter MOID = 2.52725 au 
 T_jup = 3.557 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.13   n/a MPCxxxxx  
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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