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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1352450153914451 4.0023e-08  
a 3.183413995829734 1.3926e-08 au
q 2.7528731209664 1.3207e-07 au
i 10.35947400531122 4.2922e-06 deg
node 261.2144326341315 2.2704e-05 deg
peri 340.6383578652701 2.7183e-05 deg
M 23.35160283882672 1.5328e-05 deg
tp 2459065.928744668861
(2020-Aug-04.42874467)
8.8282e-05 TDB
period 2074.617843305354
5.68
1.3613e-05
3.727e-08
d
yr
n .173525934504851 1.1387e-09 deg/d
Q 3.613954870693068 1.581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2849  
   data-arc span      32940 days (90.18 yr)  
   first obs. used      1930-07-22  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40248  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:04:20  

Additional Information
 Earth MOID = 1.74068 au 
 Jupiter MOID = 1.45476 au 
 T_jup = 3.159 
[ 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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