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JPL Small-Body Database Browser
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12648 Ibarbourou (1135 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012648
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08255383329520261 3.3511e-08  
a 2.380803330810209 9.0691e-09 au
q 2.18425888952984 8.0693e-08 au
i 6.20468973672499 5.367e-06 deg
node 319.7735763043221 3.163e-05 deg
peri 299.2166638367743 4.773e-05 deg
M 329.1597644126085 3.5419e-05 deg
tp 2459115.447331937542
(2020-Sep-22.94733194)
0.00013193 TDB
period 1341.787399134945
3.67
7.6668e-06
2.099e-08
d
yr
n .2682988379769353 1.533e-09 deg/d
Q 2.577347772090578 9.8178e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      22459 days (61.49 yr)  
   first obs. used      1958-07-12  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:52:11  

Additional Information
 Earth MOID = 1.17677 au 
 Jupiter MOID = 2.49179 au 
 T_jup = 3.526 
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Orbital Elements at Epoch 2456409.5 (2013-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08332307206449752 3.3561e-08  
q 2.182823210996678 8.088e-08 au
tp 2456430.883913232134
(2013-May-18.38391323)
0.00013331 TDB
node 319.8166744403864 3.1607e-05 deg
peri 299.0891404345388 4.748e-05 deg
i 6.207425730666175 5.3679e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      22459 days (61.49 yr)  
   first obs. used      1958-07-12  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:52:11  

Additional Information
 Jupiter MOID = 2.49179 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.126371795887523E-15 -2.700009700281256E-15 1.715244081292663E-12 -2.329080608380745E-15 4.337927240003979E-13 1.091161467461114E-15
q -2.700009700281256E-15 6.541635261390571E-15 -4.342373255704789E-12 5.578918971443846E-15 -1.10148085926112E-12 -2.231359917287997E-15
tp 1.715244081292663E-12 -4.342373255704789E-12 1.777154885155346E-8 -3.350373929271985E-11 4.730257642174524E-9 -4.158549637748141E-12
node -2.329080608380745E-15 5.578918971443846E-15 -3.350373929271985E-11 9.989995472674928E-10 -1.001463587282485E-9 2.718190902918333E-11
peri 4.337927240003979E-13 -1.10148085926112E-12 4.730257642174524E-9 -1.001463587282485E-9 2.254333557139869E-9 -2.816062986722145E-11
i 1.091161467461114E-15 -2.231359917287997E-15 -4.158549637748141E-12 2.718190902918333E-11 -2.816062986722145E-11 2.88144746013957E-11

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 MPO332938  
diameter diameter 3.356 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12648 Ibarbourou           Discovered 1977 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Uruguayan poet and writer Juana Fernández Morales de Ibarbourou (1892-1979) was one of the most popular South American poets. Her poems are notable for her identification of her feelings with nature around her.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

Alternate Designations
 1135 T-3 = 1995 OF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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