Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04277851841575103 4.421e-08  
a 2.308448592220314 1.3134e-08 AU
q 2.209696581606203 1.0309e-07 AU
i 4.018374855130879 7.077e-06 deg
node 181.4968705997655 7.0643e-05 deg
peri 100.1754270064664 0.00012027 deg
M 152.7864242206236 9.539e-05 deg
tp 2456256.797907724168
(2012-Nov-25.29790772)
0.00033875 JED
period 1281.087336245669
3.51
1.0933e-05
2.993e-08
d
yr
n .2810112861274622 2.3983e-09 deg/d
Q 2.407200602834425 1.3696e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1089  
   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      .53227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:19:06  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-24 05:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin