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15418 Sergiospinelli (1998 DU35)
Classification: Main-belt Asteroid          SPK-ID: 2015418
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607286683645003 2.952e-08  
a 2.781728910376787 1.2879e-08 au
q 2.334625326860894 8.2358e-08 au
i 9.437835800270504 3.8491e-06 deg
node 151.2144423526307 2.1011e-05 deg
peri 116.8879728726065 2.4843e-05 deg
M 228.0930344225988 1.4762e-05 deg
tp 2459821.420304996059
(2022-Aug-29.92030500)
7.1476e-05 TDB
period 1694.613387701776
4.64
1.1768e-05
3.222e-08
d
yr
n .2124378354453046 1.4753e-09 deg/d
Q 3.228832493892681 1.4949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2148  
   data-arc span      23329 days (63.87 yr)  
   first obs. used      1957-04-28  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:57:27  

Additional Information
 Earth MOID = 1.33516 au 
 Jupiter MOID = 1.95711 au 
 T_jup = 3.294 
[ 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 13.66   n/a E2021B10  
diameter diameter 14.482 km 2.783 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.037   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15418 Sergiospinelli           Discovered 1998 Feb. 27 by G. Forti and M. Tombelli at Cima Ekar.
Sergio Spinelli (b. 1939) is a very active volunteer promoting both music and astronomy in Italy. He is a member of the Nardini Philharmonic Association and of the Gruppo Astrofili Montelupo.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-07-02Last Updated: 2015-07-06

[ show close-approach data ]
Alternate Designations
 1998 DU35 = 1999 NS44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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