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JPL Small-Body Database Browser
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17403 Masciarelli (1986 EL5)
Classification: Main-belt Asteroid          SPK-ID: 2017403
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07793266531625263 3.3065e-08  
a 2.538723887783094 1.0543e-08 au
q 2.340874368706118 8.3461e-08 au
i 5.212941931843409 5.6644e-06 deg
node 2.025537710478031 4.3002e-05 deg
peri 71.01880138835256 6.0917e-05 deg
M 263.387771504025 4.2407e-05 deg
tp 2459397.007339006866
(2021-Jul-01.50733901)
0.00017459 TDB
period 1477.480069186257
4.05
9.2033e-06
2.52e-08
d
yr
n .2436581091738686 1.5178e-09 deg/d
Q 2.73657340686007 1.1364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2436  
   data-arc span      15613 days (42.75 yr)  
   first obs. used      1976-12-20  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:28:17  

Additional Information
 Earth MOID = 1.36157 au 
 Jupiter MOID = 2.44642 au 
 T_jup = 3.437 
[ 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 13.2   n/a MPO492942  
diameter diameter 6.803 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17403 Masciarelli           Discovered 1986 Mar. 6 by G. De Sanctis at the European Southern Observatory.
Clodoveo Masciarelli (b. 1955) is a doctor, artist and amateur astronomer. He has dedicated his life to astronomy and its popularization, building a small observatory and making it available to the public. The inspiration for his art is linked to the cosmos.
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 2016-03-23Last Updated: 2016-03-24

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Alternate Designations
 1986 EL5 = 1976 YP6 = 1998 DZ35 = 1998 FJ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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