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8251 Isogai (1980 VA)
Classification: Mars-crossing Asteroid          SPK-ID: 2008251
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2637872795105483 6.9367e-08  
a 2.253470034785628 7.9376e-09 AU
q 1.659033304850987 1.5716e-07 AU
i 3.208859550798966 7.9956e-06 deg
node 169.260513946607 0.00010647 deg
peri 233.1811943924613 0.00010739 deg
M 329.7663350335785 1.4565e-05 deg
tp 2456904.268228691770
(2014-Sep-03.76822869)
5.0296e-05 JED
period 1235.594902917877
3.38
6.5283e-06
1.787e-08
d
yr
n .2913576279327912 1.5394e-09 deg/d
Q 2.84790676472027 1.0031e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      11949 days (32.71 yr)  
   first obs. used      1980-10-13  
   last obs. used      2013-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6361  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:54:52  

Additional Information
 Earth MOID = .668722 AU 
 T_jup = 3.577 
[ 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 15.1 mag n/a PDS3 (MPC 31208)  

8251 Isogai           Discovered 1980 Nov. 8 by T. Furuta at Tokai.
Rensuke Isogai (b. 1941), a high-school classmate of the discoverer, is an electrical engineer and amateur astronomer. He influenced the discoverer in astronomy, who began to observe stars with a telescope borrowed from him.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1980 VA = 1980 VL = 1990 RX 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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