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18335 San Cassiano (1987 SC1)
Classification: Main-belt Asteroid          SPK-ID: 2018335
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .250306105656595 4.0452e-08  
a 2.590032467376774 1.2674e-08 au
q 1.941731526943552 1.1103e-07 au
i 5.366847530636951 4.0497e-06 deg
node 139.1460133482612 3.3355e-05 deg
peri 263.0342244698292 3.4877e-05 deg
M 328.3545383226587 1.2855e-05 deg
tp 2459334.333604374023
(2021-Apr-29.83360437)
5.5079e-05 TDB
period 1522.496276587612
4.17
1.1176e-05
3.06e-08
d
yr
n .2364537802396942 1.7356e-09 deg/d
Q 3.238333407809996 1.5847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      12195 days (33.39 yr)  
   first obs. used      1987-08-31  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:37:48  

Additional Information
 Earth MOID = .957982 au 
 Jupiter MOID = 2.20063 au 
 T_jup = 3.369 
[ 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 14.28   n/a E2021B10  
diameter diameter 4.271 km 0.827 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.749 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.168   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18335 San Cassiano           Discovered 1987 Sept. 19 by E. Bowell at Lowell Observatory's Anderson Mesa Station.
A small village in the hills near Verona, San Cassiano is renowned for its high-quality oil (Grignano) and wine (Amarone). Its isolated location affords views of both the Alps and the Adriatic Sea. The name was suggested by V. Zappalà and A. W. Harris.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1987 SC1 = 1991 PX12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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