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 ]  
13332 Benkhoff (1998 SM58)
Classification: Main-belt Asteroid          SPK-ID: 2013332
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .061315307643726 6.7996e-08  
a 2.841019711878995 2.3714e-08 AU
q 2.666821714223245 1.8766e-07 AU
i 2.254296267238368 6.6437e-06 deg
node 164.5028623458753 0.00014208 deg
peri 243.5690181031109 0.00015161 deg
M 100.4092257578861 5.2418e-05 deg
tp 2456512.656059594861
(2013-Aug-08.15605959)
0.00025335 JED
period 1749.080497536417
4.79
2.1899e-05
5.996e-08
d
yr
n .2058224309899176 2.577e-09 deg/d
Q 3.015217709534745 2.5168e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      8887 days (24.33 yr)  
   first obs. used      1991-03-13  
   last obs. used      2015-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55147  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:38:23  

Additional Information
 Earth MOID = 1.67702 AU 
 T_jup = 3.305 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO337371  

13332 Benkhoff           Discovered 1998 Sept. 17 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Johannes Benkhoff (b. 1961) is a planetary scientist at the German Aerospace Center (DLR) in Berlin-Adlerhof. His research is in the field of modeling cometary nuclei, in preparation for space missions like Rosetta and Contour. He was instrumental in organizing the ACM 2002 conference. The name was suggested by G. Hahn.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 SM58 = 1993 QO2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 17:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin