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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361571970444293 1.9492e-08  
a 3.186807843206495 1.2135e-08 au
q 2.752901019756295 6.2046e-08 au
i 10.34969794159963 4.8762e-07 deg
node 261.17318882 4.2322e-06 deg
peri 340.8622420606209 1.0096e-05 deg
M 57.11106649039785 6.929e-06 deg
tp 2459066.852328518635
(2020-Aug-05.35232852)
3.9688e-05 TDB
period 2077.93636200515
5.69
1.1869e-05
3.25e-08
d
yr
n .1732488090504418 9.8955e-10 deg/d
Q 3.620714666656694 1.3787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3026  
   data-arc span      33212 days (90.93 yr)  
   first obs. used      1930-07-22  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:08:12  

Additional Information
 Earth MOID = 1.74237 au 
 Jupiter MOID = 1.44689 au 
 T_jup = 3.158 
[ 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 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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