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32990 Sayo-hime (1996 YD3)
Classification: Main-belt Asteroid          SPK-ID: 2032990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0814210276466482 3.7771e-08  
a 3.027025358569797 1.9586e-08 au
q 2.780561843162581 1.1869e-07 au
i 9.449460473639244 4.9159e-06 deg
node 350.8015356594355 2.4893e-05 deg
peri 280.4213214151903 3.8894e-05 deg
M 280.6671959243544 3.0665e-05 deg
tp 2459024.409178421814
(2020-Jun-23.90917842)
0.00016413 TDB
period 1923.634315085327
5.27
1.867e-05
5.112e-08
d
yr
n .1871457569543468 1.8163e-09 deg/d
Q 3.273488873977014 2.118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1347  
   data-arc span      8167 days (22.36 yr)  
   first obs. used      1996-12-30  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:45:40  

Additional Information
 Earth MOID = 1.78447 au 
 Jupiter MOID = 1.89911 au 
 T_jup = 3.219 
[ show covariance matrix ]

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 13.3   n/a MPO435993  
diameter diameter 7.874 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.788 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.136   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32990 Sayo-hime           Discovered 1996 Dec. 30 by N. Sato at Chichibu.
Sayo-hime is the female protagonist of a love story, written around the sixth century, in which a young man heads off to the Korean peninsula. This tragic love story was included in Japan's oldest collection of waka poetry, the Manyohshu.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1996 YD3 = 1998 FU48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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