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8295 Toshifukushima (1992 UN4)
Classification: Main-belt Asteroid          SPK-ID: 2008295
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568507339899935 4.5048e-08  
a 2.783345711972845 1.3341e-08 au
q 2.346775894102003 1.2672e-07 au
i 10.35450929992794 4.7589e-06 deg
node 77.70173235599144 2.8737e-05 deg
peri 325.1026605936796 3.2744e-05 deg
M 334.0069784495041 1.654e-05 deg
tp 2459122.962584671972
(2020-Sep-30.46258467)
7.8199e-05 TDB
period 1696.091021825387
4.64
1.2195e-05
3.339e-08
d
yr
n .2122527596499842 1.5261e-09 deg/d
Q 3.219915529843687 1.5434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1753  
   data-arc span      15280 days (41.83 yr)  
   first obs. used      1978-10-02  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:58:02  

Additional Information
 Earth MOID = 1.36474 au 
 Jupiter MOID = 2.179 au 
 T_jup = 3.291 
[ 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 12.9   n/a MPO448996  
diameter diameter 6.384 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.360   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8295 Toshifukushima           Discovered 1992 Oct. 26 by K. Endate and K. Watanabe at Kitami.
Named in honor of Toshio Fukushima (b. 1954), a Japanese astronomer working mainly on general relativity, positional astronomy and celestial mechanics. He is current president of the IAU Commission 31 and served as chair of the local organizing committee for the IAU General Assembly in Kyoto in 1997. He created the current version of Japanese Ephemeris, published by the Japanese Hydrographic Department, and contributed to the introduction of general relativity into the current IAU system of time systems, reference frames and astronomical constants. He has been the director of the public relations center of the National Astronomical Observatory of Japan since 1998.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1992 UN4 = 1978 TV6 
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