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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1225226757750921 2.9783e-08  
a 2.299374655846796 6.5072e-09 au
q 2.017649120403015 6.9505e-08 au
i 5.439896540342777 3.2968e-06 deg
node 264.3014646531475 3.7012e-05 deg
peri 217.6874196959434 4.0105e-05 deg
M 4.68872305774192 1.4733e-05 deg
tp 2458983.913104139142
(2020-May-14.41310414)
5.2119e-05 TDB
period 1273.541311007706
3.49
5.4062e-06
1.48e-08
d
yr
n .2826763426426626 1.2e-09 deg/d
Q 2.581100191290577 7.3045e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1700  
   data-arc span      11319 days (30.99 yr)  
   first obs. used      1989-02-04  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:31:31  

Additional Information
 Earth MOID = 1.03672 au 
 Jupiter MOID = 2.50155 au 
 T_jup = 3.577 
[ 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 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)  
rotation period rot_per 1.15 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
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

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