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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545499341109249 7.9383e-08  
a 3.987624081647192 9.2319e-08 AU
q 3.371337042569481 3.583e-07 AU
i 5.563031126006534 8.7419e-06 deg
node 31.76098734481947 7.7799e-05 deg
peri 241.3724759838297 8.3321e-05 deg
M 308.7904302582216 3.1943e-05 deg
tp 2457414.231290821948
(2016-Jan-26.73129082)
0.00026163 JED
period 2908.50451286625
7.96
0.000101
2.765e-07
d
yr
n .123774949774869 4.2983e-09 deg/d
Q 4.603911120724903 1.0659e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7918 days (21.68 yr)  
   first obs. used      1993-09-15  
   last obs. used      2015-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61475  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:00:54  

Additional Information
 Earth MOID = 2.36176 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 13.5 mag n/a MPO296538  

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 ]
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