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19954 Shigeyoshi (1982 VY3)
Classification: Main-belt Asteroid          SPK-ID: 2019954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362907345123457 2.7864e-08  
a 2.290312725571674 6.6969e-09 au
q 1.978164321940538 6.3569e-08 au
i 6.530699570368319 3.4305e-06 deg
node 67.22685606520491 2.8518e-05 deg
peri 198.0474596907491 3.1496e-05 deg
M 133.990767893135 1.3442e-05 deg
tp 2458729.291646043807
(2019-Sep-02.79164604)
4.7115e-05 TDB
period 1266.020115352445
3.47
5.5528e-06
1.52e-08
d
yr
n .2843556714734981 1.2472e-09 deg/d
Q 2.60246112920281 7.6096e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2398  
   data-arc span      13989 days (38.30 yr)  
   first obs. used      1982-11-14  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4493  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:13  

Additional Information
 Earth MOID = .961929 au 
 Jupiter MOID = 2.46225 au 
 T_jup = 3.578 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457282.5 (2015-Sep-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358736375352954 2.786e-08  
q 1.979337878774838 6.3541e-08 au
tp 2457463.401328641057
(2016-Mar-15.90132864)
4.741e-05 TDB
node 67.24045490200184 2.8511e-05 deg
peri 198.1636759359908 3.151e-05 deg
i 6.531452241348711 3.4311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2398  
   data-arc span      13989 days (38.30 yr)  
   first obs. used      1982-11-14  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4493  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:13  

Additional Information
 Jupiter MOID = 2.46225 au 
 T_jup = 3.578 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.761595348338754E-16 -1.762870605774985E-15 -3.750026074276038E-13 -2.983553008159839E-16 -1.006028583906984E-13 3.348859660599998E-16
q -1.762870605774985E-15 4.037496664937146E-15 8.400440660712449E-13 2.032610646922253E-16 2.241192992743496E-13 -7.300295104633655E-16
tp -3.750026074276038E-13 8.400440660712449E-13 2.247742551778983E-9 -1.019081399540078E-12 6.461729185784741E-10 -5.34558478257741E-14
node -2.983553008159839E-16 2.032610646922253E-16 -1.019081399540078E-12 8.128518492030068E-10 -8.07412940942488E-10 -2.547068865576888E-11
peri -1.006028583906984E-13 2.241192992743496E-13 6.461729185784741E-10 -8.07412940942488E-10 9.929090693192074E-10 2.530042955277708E-11
i 3.348859660599998E-16 -7.300295104633655E-16 -5.34558478257741E-14 -2.547068865576888E-11 2.530042955277708E-11 1.177210570237067E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.17   n/a E2021B10  
rotation period rot_per 65.129 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.]

19954 Shigeyoshi           Discovered 1982 Nov. 14 by H. Kosai and K. Hurukawa at Kiso.
Shigeyoshi Nabeshima (1800-1862) was the 28th lord of Takeo area, Saga domain in the 19th century. He imported globes and astronomical telescopes, and introduced foreign studies including astronomy. He is respected as a local hero, called "Shigeyoshi-kou" in Takeo.
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 2017-01-12Last Updated: 2017-01-17

Alternate Designations
 1982 VY3 = 1998 HR135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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