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2731 Cucula (1982 KJ)
Classification: Main-belt Asteroid          SPK-ID: 2002731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189251815494924 2.8481e-08  
a 3.190204928694773 1.7221e-08 au
q 2.586452854138432 9.1542e-08 au
i 13.34931215175347 3.4961e-06 deg
node 150.6577952142858 1.6435e-05 deg
peri 133.1637581071121 1.9448e-05 deg
M 212.4940115003798 1.0818e-05 deg
tp 2459853.273018421006
(2022-Sep-30.77301842)
6.4408e-05 TDB
period 2081.259817002973
5.70
1.6852e-05
4.614e-08
d
yr
n .1729721570843578 1.4006e-09 deg/d
Q 3.793957003251114 2.048e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2819  
   data-arc span      20704 days (56.68 yr)  
   first obs. used      1964-02-15  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:06:35  

Additional Information
 Earth MOID = 1.59151 au 
 Jupiter MOID = 1.59592 au 
 T_jup = 3.127 
[ 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 10.8   n/a MPO296154  
diameter diameter 44.841 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 61.55 h n/a LCDB (Rev. 2019-August); 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:
[Brinsfield, J.W. (2012) Minor Planet Bull. 39, 55-57.]
[Oey, J. (2012) Minor Planet Bull. 39, 145-147.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2731 Cucula (1982 KJ)          Discovered 1982-May-21 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 KJ = 1937 GO = 1964 CK = 1966 SA = 1978 TM8 = 1981 AR = 1981 FO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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