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13235 Isiguroyuki (1998 HT42)
Classification: Main-belt Asteroid          SPK-ID: 2013235
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04277856847715279 4.2477e-08  
a 2.308448592658829 1.2702e-08 AU
q 2.209696466461786 9.9251e-08 AU
i 4.018372669770281 6.8342e-06 deg
node 181.4968680939027 6.7755e-05 deg
peri 100.1754577351822 0.00011718 deg
M 152.7863929697864 9.3577e-05 deg
tp 2456256.798018777723
(2012-Nov-25.29801878)
0.00033219 JED
period 1281.087336610703
3.51
1.0573e-05
2.895e-08
d
yr
n .2810112860473906 2.3193e-09 deg/d
Q 2.407200718855871 1.3245e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      10870 days (29.76 yr)  
   first obs. used      1984-05-07  
   last obs. used      2014-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52012  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:35:39  

Additional Information
 Earth MOID = 1.19714 AU 
 T_jup = 3.582 
[ 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 14.1 mag n/a MPO267759  

13235 Isiguroyuki           Discovered 1998 Apr. 30 by T. Okuni at Nanyo.
Amateur astronomer Nobuyuki Ishiguro (b. 1959) has been active in the Nanyo Astronomical Amateurs Club since 1984.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1998 HT42 = 1984 JJ = 1985 SA6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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