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6250 Saekohayashi (1991 VX1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2006250
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07099492559016385 6.5743e-08  
a 1.932687450241942 9.0846e-09 au
q 1.795476448522972 1.2802e-07 au
i 19.78479542981299 5.9502e-06 deg
node 226.5685574073483 1.8654e-05 deg
peri 299.2212516231182 4.3531e-05 deg
M 236.7210774861866 4.0799e-05 deg
tp 2457736.568026677462
(2016-Dec-14.06802668)
0.00011184 JED
period 981.3882790087664
2.69
6.9196e-06
1.894e-08
d
yr
n .3668272871198457 2.5864e-09 deg/d
Q 2.069898451960912 9.7296e-09 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      11719 days (32.08 yr)  
   first obs. used      1983-11-09  
   last obs. used      2015-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4797  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:59:21  

Additional Information
 Earth MOID = .83466 au 
 Jupiter MOID = 2.96176 au 
 T_jup = 3.836 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO347574  
rotation period rot_per 82.6 h n/a LCDB (Rev. 2015-December); 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:
[Warner, B.D. (2009) Minor Planet Bul. 36, 172-176.]

6250 Saekohayashi           Discovered 1991 Nov. 2 by E. F. Helin at Palomar.
Saeko S. Hayashi (b. 1958) is an associate professor at the National Astronomical Observatory of Japan, whose research interest is planetary formation processes. Working at the Subaru Telescope, she also devotes herself to the popularization of astronomy in Hawaii and Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04

Alternate Designations
 1991 VX1 = 1983 VP5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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