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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315813232719569 1.2621e-08  
a 2.316872616282053 7.1313e-09 au
q 2.012015451579099 2.9595e-08 au
i 7.521101330397507 6.0476e-07 deg
node 127.5065415084915 6.5509e-06 deg
peri 157.0098166389965 1.06e-05 deg
M 296.8633639338753 9.6793e-06 deg
tp 2459622.407474150118
(2022-Feb-11.90747415)
3.5122e-05 TDB
period 1288.106173551388
3.53
5.9471e-06
1.628e-08
d
yr
n .2794800672427941 1.2903e-09 deg/d
Q 2.621729780985006 8.0696e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      14407 days (39.44 yr)  
   first obs. used      1982-02-21  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:58:18  

Additional Information
 Earth MOID = .997683 au 
 Jupiter MOID = 2.52676 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457467.5 (2016-Mar-20.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1321235283384827 1.2588e-08  
q 2.010674906497531 2.9532e-08 au
tp 2457045.798323690269
(2015-Jan-23.29832369)
3.1114e-05 TDB
node 127.5525779671351 6.5524e-06 deg
peri 156.9368185993337 1.0585e-05 deg
i 7.520997054634435 6.0501e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      14407 days (39.44 yr)  
   first obs. used      1982-02-21  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:58:18  

Additional Information
 Jupiter MOID = 2.52676 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.584659988458832E-16 -3.636057041401241E-16 3.119047669945838E-14 -1.884734915798299E-14 1.136127089463437E-14 -1.586842888885703E-15
q -3.636057041401241E-16 8.72157731216518E-16 -4.182388689081514E-14 4.578725112388202E-14 -1.784116690263033E-14 3.822321708545362E-15
tp 3.119047669945838E-14 -4.182388689081514E-14 9.680733766061879E-10 2.083126907735992E-11 2.622656087558403E-10 -9.045243535185328E-13
node -1.884734915798299E-14 4.578725112388202E-14 2.083126907735992E-11 4.293459048694596E-11 -3.499239873521093E-11 2.821360707281556E-12
peri 1.136127089463437E-14 -1.784116690263033E-14 2.622656087558403E-10 -3.499239873521093E-11 1.120415589758469E-10 -2.862693020569323E-12
i -1.586842888885703E-15 3.822321708545362E-15 -9.045243535185328E-13 2.821360707281556E-12 -2.862693020569323E-12 3.660425599321188E-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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