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12369 Pirandello (1994 CJ16)
Classification: Main-belt Asteroid          SPK-ID: 2012369
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08941097128353788 3.9301e-08  
a 2.292246611136496 7.2035e-09 au
q 2.087294615213384 9.1024e-08 au
i 4.96543148285741 3.1879e-06 deg
node 121.6829822626412 4.5362e-05 deg
peri 83.51824743774112 4.9441e-05 deg
M 221.4684309674327 2.1772e-05 deg
tp 2459688.294263035201
(2022-Apr-18.79426304)
7.7832e-05 TDB
period 1267.623949681745
3.47
5.9754e-06
1.636e-08
d
yr
n .2839958964883734 1.3387e-09 deg/d
Q 2.497198607059608 7.8476e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2136  
   data-arc span      10818 days (29.62 yr)  
   first obs. used      1991-06-06  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45881  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:05:34  

Additional Information
 Earth MOID = 1.08932 au 
 Jupiter MOID = 2.46874 au 
 T_jup = 3.587 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.09   n/a E2021B10  
diameter diameter 4.048 km 1.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.504 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
geometric albedo albedo 0.271   0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

12369 Pirandello           Discovered 1994 Feb. 8 by E. W. Elst at the European Southern Observatory.
Luigi Pirandello (1867-1936) was a Sicilian writer who suffered from personal tragedy, leading him to explore madness, illusion and isolation. In 1925 he received the French Legion of Honor. In his well-known play Henri IV Pirandello's protagonist loses his mind, after falling from a horse.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

Alternate Designations
 1994 CJ16 = 1991 LZ3 = 1998 KO65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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