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JPL Small-Body Database Browser
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19210 Higayoshihiro (1992 YE4)
Classification: Main-belt Asteroid          SPK-ID: 2019210
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331156269282353 3.6939e-08  
a 2.581963709754892 1.2626e-08 au
q 1.980067620849428 9.881e-08 au
i 4.088621991938018 4.273e-06 deg
node 150.2520015005469 4.9708e-05 deg
peri 240.3645406388514 5.0682e-05 deg
M 276.5117671206456 1.3705e-05 deg
tp 2459351.936120159128
(2021-May-17.43612016)
5.9657e-05 TDB
period 1515.387245530889
4.15
1.1116e-05
3.043e-08
d
yr
n .2375630394552255 1.7426e-09 deg/d
Q 3.183859798660356 1.557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      14477 days (39.64 yr)  
   first obs. used      1979-09-20  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:41:13  

Additional Information
 Earth MOID = .989205 au 
 Jupiter MOID = 2.26773 au 
 T_jup = 3.382 
[ 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 14.5   n/a MPO384919  
rotation period rot_per 6.23 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

19210 Higayoshihiro           Discovered 1992 Dec. 25 by T. Seki at Geisei.
Yoshihiro Higa (1965-2015) was an amateur astronomer and science communicator. He created the first astronomical science cafe in Sendai, Japan. He was also an amateur meteor researcher.
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 2018-05-29Last Updated: 2018-09-17

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Alternate Designations
 1992 YE4 = 1979 SR13 = 1979 SX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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