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13643 Takushi (1996 HC1)
Classification: Main-belt Asteroid          SPK-ID: 2013643
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122947914262742 6.2013e-08  
a 2.594171365446747 1.6342e-08 au
q 2.302859433039892 1.6559e-07 au
i 13.83072366791776 6.5535e-06 deg
node 56.3424211942468 2.5509e-05 deg
peri 88.04075261745292 3.9373e-05 deg
M 6.274942973855707 2.9195e-05 deg
tp 2457573.898648529427
(2016-Jul-04.39864853)
0.00012376 JED
period 1526.147180827997
4.18
1.4421e-05
3.948e-08
d
yr
n .2358881269922376 2.229e-09 deg/d
Q 2.885483297853602 1.8178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      936  
   data-arc span      7301 days (19.99 yr)  
   first obs. used      1996-04-21  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4964  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:17:01  

Additional Information
 Earth MOID = 1.36326 au 
 Jupiter MOID = 2.2443 au 
 T_jup = 3.368 
[ 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 12.8 mag n/a MPO365414  
rotation period rot_per 83.838 h n/a LCDB (Rev. 2016-February); 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:
[Clark, M. (2013) Minor Planet Bul. 40, 11-12.]

13643 Takushi           Discovered 1996 Apr. 21 by H. Abe at Yatsuka.
Takushi Yokota (b. 1958) was the leader of Kobe University astronomy club. He was also an observing partner of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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