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20193 Yakushima (1997 BH8)
Classification: Main-belt Asteroid          SPK-ID: 2020193
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2001773064702598 8.4916e-08  
a 2.654832677752158 2.7237e-08 AU
q 2.123395423190503 2.3141e-07 AU
i 10.56025138944128 9.3906e-06 deg
node 316.9341296083028 3.6099e-05 deg
peri 31.30149143735973 4.0382e-05 deg
M 163.6318014844586 2.0662e-05 deg
tp 2456282.343046614546
(2012-Dec-20.84304661)
8.706e-05 JED
period 1579.989347262174
4.33
2.4315e-05
6.657e-08
d
yr
n .2278496374825645 3.5064e-09 deg/d
Q 3.186269932313812 3.2689e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      18079 days (49.50 yr)  
   first obs. used      1965-10-23  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46862  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:36:20  

Additional Information
 Earth MOID = 1.12374 AU 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279725  

20193 Yakushima           Discovered 1997 Jan. 18 by N. Sato at Chichibu.
Yakushima is a small island located to the south of Kagoshima prefecture, Japan. This island was listed as a UNESCO World Natural Heritage site in 1993. The first total solar eclipse visible in Japan in 46 years occurred on the island on July 22, 2009, and attracted many space enthusiasts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111012/MPCPages.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 1997 BH8 = 1965 UH2 = 1998 FB108 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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