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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2647848089105413 5.8812e-08  
a 2.252827080905571 9.1841e-09 au
q 1.656312692779496 1.3161e-07 au
i 3.211326154180015 6.4968e-06 deg
node 169.2554068665252 9.6973e-05 deg
peri 233.1691481621822 9.7579e-05 deg
M 202.8258174322132 1.181e-05 deg
tp 2458139.723639764553
(2018-Jan-21.22363976)
4.2424e-05 JED
period 1235.066135823661
3.38
7.5525e-06
2.068e-08
d
yr
n .2914823664563658 1.7824e-09 deg/d
Q 2.849341469031645 1.1616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      12970 days (35.51 yr)  
   first obs. used      1980-10-13  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54037  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:01:42  

Additional Information
 Earth MOID = .665739 au 
 Jupiter MOID = 2.56654 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 15.3 mag n/a MPO337325  

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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