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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608477560897651 3.137e-08  
a 2.781562679858728 1.3531e-08 au
q 2.334154564380418 8.648e-08 au
i 9.437125475553835 4.154e-06 deg
node 151.2189725681345 2.4414e-05 deg
peri 116.8494098352198 2.8345e-05 deg
M 185.6550146540074 1.5127e-05 deg
tp 2459821.113510094280
(2022-Aug-29.61351009)
7.3314e-05 TDB
period 1694.461489945752
4.64
1.2364e-05
3.385e-08
d
yr
n .2124568791536982 1.5503e-09 deg/d
Q 3.228970795337038 1.5708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      22896 days (62.69 yr)  
   first obs. used      1957-04-28  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:47:56  

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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