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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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1918-Feb-12 20:45 00:02 Jupiter 1.94891011824559 1.94890969169996 1.94891054479156 1.86736143928118 1.61796535198938 2421637.364603911 2.12700740351914 93.3693097820134 21.5720365704747 83.4399944246733 3052697.72385742 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 21:18:29 2020-Feb-22 21:18
1940-Oct-16 16:58 00:02 Jupiter 1.99247661977151 1.99247609247781 1.99247714706578 2.77294327427217 2.6151469594285 2429919.206731937 1.58817500104372 100.704870937258 12.7371931384468 87.4497439260396 2326038.78956937 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 21:18:29 2020-Feb-22 21:18
2024-Aug-13 01:23 < 00:01 Jupiter 1.9490852096032 1.94908482568085 1.94908559352544 1.94696110057245 1.7092421558574 2460535.557391949 0.261989072469522 46.4523688738359 12.0427628407227 69.2157329717393 2946262.83557897 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 21:18:29 2020-Feb-22 21:18
2108-Jun-09 10:58 00:02 Jupiter 1.97565657102512 1.9756561069079 1.97565703514211 2.11526581623501 1.90181234830437 2491150.956981997 1.98993417859018 57.5956926843059 28.4236829411025 89.2280909818118 1726708.59190993 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 21:18:29 2020-Feb-22 21:18
2131-Feb-11 17:48 00:03 Jupiter 1.96318314089927 1.9631826203967 1.96318366140272 2.14730622038565 1.93597952477715 2499433.241376140 2.52214643007905 146.945652909229 6.8561342629208 74.5105554874988 2667241.98015265 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 21:18:29 2020-Feb-22 21:18

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