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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608477574648232 3.1322e-08  
a 2.781562678987316 1.349e-08 au
q 2.33415455982436 8.6292e-08 au
i 9.43712556143862 4.0208e-06 deg
node 151.2189727397228 2.4288e-05 deg
peri 116.8494120381347 2.8079e-05 deg
M 185.655012832283 1.495e-05 deg
tp 2459821.113518283216
(2022-Aug-29.61351828)
7.2572e-05 TDB
period 1694.461489149487
4.64
1.2326e-05
3.375e-08
d
yr
n .2124568792535364 1.5455e-09 deg/d
Q 3.228970798150272 1.5659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1881  
   data-arc span      22924 days (62.76 yr)  
   first obs. used      1957-04-28  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:14  

Additional Information
 Earth MOID = 1.33647 au 
 Jupiter MOID = 1.95783 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 13.6   n/a MPO452388  
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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