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 ]  
55196 Marchini (2001 RM16)
Classification: Outer Main-belt Asteroid          SPK-ID: 2055196
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543831764954284 8.0249e-08  
a 3.987370871395048 1.1779e-07 AU
q 3.371787890403736 3.7409e-07 AU
i 5.56305425187803 9.0492e-06 deg
node 31.76104706535924 9.075e-05 deg
peri 241.3666794166255 0.00010032 deg
M 284.021596782097 5.1211e-05 deg
tp 2457414.284668374899
(2016-Jan-26.78466837)
0.00043008 JED
period 2908.227486451014
7.96
0.00012886
3.528e-07
d
yr
n .1237867400941587 5.485e-09 deg/d
Q 4.60295385238636 1.3597e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1993-09-15  
   last obs. used      2014-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6182  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 15:10:38  

Additional Information
 Earth MOID = 2.36039 AU 
 T_jup = 3.027 
[ 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 13.4 mag n/a MPO257229  

55196 Marchini           Discovered 2001 Sept. 11 by A. Boattini and L. Tesi at San Marcello Pistoiese.
Alessandro Marchini (b. 1965) is a computer scientist in the physics department and director of the astronomical observatory of the University of Siena. He also works in the popularization of astronomy.
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
 2001 RM16 = 1999 JS38 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-29 10:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin