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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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1939-Sep-04 03:50 00:01 Jupiter 1.9849093678462 1.98490902243337 1.98490971325948 3.72935588871676 3.61311959214733 2429510.659739882 1.26967235171566 105.148941157199 12.5235213777236 86.5148858561005 3980047.90713669 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:25 2020-Nov-13 02:53
2022-Aug-12 12:59 < 00:01 Jupiter 1.97539348170477 1.97539318380277 1.97539377960667 3.66703130893796 3.54817490498309 2459804.040628556 0.203224931717008 32.4851245559142 12.4002101397751 86.4371346482063 3940814.30547803 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:25 2020-Nov-13 02:53
2105-Jul-20 16:51 00:02 Jupiter 1.97327194276065 1.97327164876604 1.97327223675526 3.61594174431979 3.49521662052904 2490096.202065351 1.55581705528366 127.60674266804 12.3341231806264 -89.345193688828 3891025.5346425 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:25 2020-Nov-13 02:53
2188-Jun-27 13:01 00:03 Jupiter 1.96224383339562 1.96224353022596 1.96224413656617 3.55430264932386 3.4307064831768 2520389.042398313 2.96236815183703 236.119136972671 12.2552906162112 -87.6315665957129 3844224.92457271 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:25 2020-Nov-13 02:53

Alternate Designations
 1994 PH30 = 1981 UK24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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