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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08281561833864656 3.5655e-08  
a 3.031163166416597 1.8719e-08 au
q 2.780135514504476 1.1361e-07 au
i 9.453097310850422 4.7682e-06 deg
node 350.7119230562491 2.3443e-05 deg
peri 279.8893245199356 3.7102e-05 deg
M 33.41833592934966 2.9081e-05 deg
tp 2459021.565238484137
(2020-Jun-21.06523848)
0.00015567 TDB
period 1927.579945389701
5.28
1.7855e-05
4.888e-08
d
yr
n .186762681807845 1.73e-09 deg/d
Q 3.282190818328717 2.0269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1459  
   data-arc span      8636 days (23.64 yr)  
   first obs. used      1996-12-30  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52931  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 07:16:20  

Additional Information
 Earth MOID = 1.78288 au 
 Jupiter MOID = 1.88956 au 
 T_jup = 3.217 
[ 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 13.41   n/a MPCxxxxx  
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. 2020-October); 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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