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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08955030353285937 4.041e-08  
a 2.291915562105581 7.8911e-09 au
q 2.086673827847342 9.2942e-08 au
i 4.965444570930498 4.3315e-06 deg
node 121.6832662731972 4.8186e-05 deg
peri 83.57694571116888 5.3917e-05 deg
M 164.596210324467 2.4612e-05 deg
tp 2458421.053054214063
8.6054e-05 TDB
period 1267.349351918397
n .2840574301435237 1.467e-09 deg/d
Q 2.49715729636382 8.5977e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1725  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1991-06-06  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:36:25  

Additional Information
 Earth MOID = 1.08958 au 
 Jupiter MOID = 2.46992 au 
 T_jup = 3.587 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO384866  
diameter diameter 4.048 km 1.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 3.504 h n/a LCDB (Rev. 2019-August); 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] (  

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 ]
FirstGov 2020-Apr-04 06:33 UT
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