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12618 Cellarius (6217 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012618
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408838649134367 1.2192e-07  
a 3.103959447524339 2.6268e-08 AU
q 2.666661644022535 3.8301e-07 AU
i 16.09122174210576 1.2753e-05 deg
node 196.2167026811829 2.5152e-05 deg
peri 13.52458549075063 3.6745e-05 deg
M 70.54873474523852 2.3031e-05 deg
tp 2456409.065398286405
(2013-Apr-26.56539829)
0.00012796 JED
period 1997.434215167195
5.47
2.5356e-05
6.942e-08
d
yr
n .1802312172618242 2.2879e-09 deg/d
Q 3.541257251026144 2.9969e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      19551 days (53.53 yr)  
   first obs. used      1960-09-24  
   last obs. used      2014-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60882  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:02:33  

Additional Information
 Earth MOID = 1.66553 AU 
 T_jup = 3.146 
[ 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 13.3 mag n/a MPO263462  

12618 Cellarius           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Andreas Cellarius (c. 1596-1665), a German schoolmaster from Neuhausen near Worms, settled in Amsterdam in the early 1620s, becoming rector of the Latin School in Hoorn in 1637. His Harmonia Macrocosmica, published 1660 in Amsterdam, ranks amongst the most spectacular celestial atlases of the seventeenth century.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 6217 P-L = 1980 GG1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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