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JPL Small-Body Database Browser
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9941 Iguanodon (1989 CB3)
Classification: Main-belt Asteroid          SPK-ID: 2009941
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122557748149275 3.8618e-08  
a 2.298992736100936 7.7316e-09 au
q 2.017233363352865 8.7292e-08 au
i 5.439998959056687 3.4073e-06 deg
node 264.3015417895766 4.8454e-05 deg
peri 217.8030504974579 5.1032e-05 deg
M 251.5051612301425 1.6643e-05 deg
tp 2458984.217320809698
(2020-May-14.71732081)
5.9371e-05 TDB
period 1273.224026670192
3.49
6.4229e-06
1.758e-08
d
yr
n .2827467849012342 1.4263e-09 deg/d
Q 2.580752108849008 8.6792e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1442  
   data-arc span      11180 days (30.61 yr)  
   first obs. used      1989-02-04  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:05:45  

Additional Information
 Earth MOID = 1.03663 au 
 Jupiter MOID = 2.50311 au 
 T_jup = 3.577 
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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 14.7   n/a MPO452310  
diameter diameter 3.123 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9941 Iguanodon           Discovered 1989 Feb. 4 by E. W. Elst at the European Southern Observatory.
Iguanodon was a heavy bipedal, upright-standing dinosaur, balancing its long 10-meter body by a heavy tail. It lived in Lower Cretaceous times, and many skeletons have been found in Europe
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1989 CB3 = 1994 PV30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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