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12381 Hugoclaus (1994 PH30)
Classification: Main-belt Asteroid          SPK-ID: 2012381
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002658671802024 3.1214e-08  
a 2.768671470251157 1.1219e-08 au
q 2.491068224349339 8.6591e-08 au
i 9.065450837167116 3.7576e-06 deg
node 185.4106581034528 1.9907e-05 deg
peri 318.1229887285987 2.734e-05 deg
M 49.05263079403192 1.7596e-05 deg
tp 2458771.220424555453
(2019-Oct-14.72042456)		 8.2232e-05 TDB
period 1682.695623535841
4.61		 1.0228e-05
2.8e-08		 d
yr
n .2139424355567845 1.3004e-09 deg/d
Q 3.046274716152975 1.2344e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2263  
   data-arc span      14147 days (38.73 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:20  

Additional Information
 Earth MOID = 1.51055 au 
 Jupiter MOID = 1.97605 au 
 T_jup = 3.313 
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[ 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 13.5   n/a MPO279646  
diameter diameter 5.315 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.86845 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.299   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12381 Hugoclaus           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory.
The expressionistic work of the famous contemporary Flemish writer Hugo Claus (b. 1929) has been translated into several languages. He is also a well-known playwright and prominent poet. In 1983 he published his Het Verdriet van Belgii ("The Sorrow of Belgium"), which brought him international recognition.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

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Alternate Designations
 1994 PH30 = 1981 UK24 
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