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12811 Rigonistern (1996 CL7)
Classification: Main-belt Asteroid          SPK-ID: 2012811
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504710846269683 3.4571e-08  
a 2.262141908057706 8.3146e-09 au
q 1.921754961572143 7.917e-08 au
i 9.353897161714002 4.4532e-06 deg
node 338.6438454483943 2.5516e-05 deg
peri 117.7470340601834 3.0737e-05 deg
M 89.54790416693987 1.6824e-05 deg
tp 2458691.377141918716
(2019-Jul-26.87714192)
5.7471e-05 TDB
period 1242.734042125657
3.40
6.8516e-06
1.876e-08
d
yr
n .2896838646056814 1.5971e-09 deg/d
Q 2.602528854543268 9.5657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1268  
   data-arc span      11374 days (31.14 yr)  
   first obs. used      1988-12-13  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54313  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:27:34  

Additional Information
 Earth MOID = .958296 au 
 Jupiter MOID = 2.56012 au 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO458948  
diameter diameter 2.741 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.373   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12811 Rigonistern           Discovered 1996 Feb. 14 by U. Munari and M. Tombelli at Cima Ekar.
Mario Rigoni Stern (b. 1922), born and living in Asiago, is one of the most influential contemporary Italian writers, famous for his poetry and novels about mountain life and habitat. His work has been translated into more than a dozen languages and has won several national and international awards.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

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