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1232 Cortusa (1931 TF2)
Classification: Main-belt Asteroid          SPK-ID: 2001232
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361571972602489 1.9482e-08  
a 3.186807842302041 1.195e-08 au
q 2.752901018287214 6.193e-08 au
i 10.34969793156239 4.8703e-07 deg
node 261.1731887951847 4.232e-06 deg
peri 340.8622423453078 1.0076e-05 deg
M 57.1110664479087 6.9281e-06 deg
tp 2459066.852328904221
(2020-Aug-05.35232890)
3.9676e-05 TDB
period 2077.936361120536
5.69
1.1688e-05
3.2e-08
d
yr
n .1732488091241969 9.7451e-10 deg/d
Q 3.620714666316868 1.3578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3115  
   data-arc span      33255 days (91.05 yr)  
   first obs. used      1930-07-22  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:28:13  

Additional Information
 Earth MOID = 1.74237 au 
 Jupiter MOID = 1.44689 au 
 T_jup = 3.158 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456558.5 (2013-Sep-23.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334533518899749 1.9664e-08  
q 2.757770538790655 6.2011e-08 au
tp 2456987.860567688492
(2014-Nov-26.36056769)
4.0425e-05 TDB
node 261.2444601240903 4.2264e-06 deg
peri 340.0079966971383 1.0214e-05 deg
i 10.35930706589744 4.8744e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3115  
   data-arc span      33255 days (91.05 yr)  
   first obs. used      1930-07-22  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:28:13  

Additional Information
 Jupiter MOID = 1.44689 au 
 T_jup = 3.158 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.866773714028236E-16 -1.202089430478509E-15 -4.410900529058806E-14 1.847614328595825E-14 -5.719348722972293E-14 2.078185148221909E-16
q -1.202089430478509E-15 3.845346922424452E-15 8.314824631642027E-14 -5.69638851144894E-14 1.680914638676665E-13 -1.916067035163964E-16
tp -4.410900529058806E-14 8.314824631642027E-14 1.634168318362792E-9 -2.612577957820222E-11 3.652829802887548E-10 -6.44459714958538E-12
node 1.847614328595825E-14 -5.69638851144894E-14 -2.612577957820222E-11 1.786259931549855E-11 -2.438865138950117E-11 1.645546772189297E-12
peri -5.719348722972293E-14 1.680914638676665E-13 3.652829802887548E-10 -2.438865138950117E-11 1.043281121981214E-10 -3.05994798433383E-12
i 2.078185148221909E-16 -1.916067035163964E-16 -6.44459714958538E-12 1.645546772189297E-12 -3.05994798433383E-12 2.375941095486779E-13

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 10.35   n/a E2021B10  
diameter diameter 36.367 km 0.463 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 25.16 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:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.072   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1232 Cortusa (1931 TF2)          Discovered 1931-Oct-10 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TF2 = 1930 OH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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