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16683 Alepieri (1994 JY)
Classification: Main-belt Asteroid          SPK-ID: 2016683
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1135311056434384 3.7473e-08  
a 3.041002619997506 1.5207e-08 au
q 2.695754230284596 1.1608e-07 au
i 3.892434760475902 3.7515e-06 deg
node 93.93064146925704 7.0503e-05 deg
peri 142.9414996553246 7.3356e-05 deg
M 24.90772681136956 2.1216e-05 deg
tp 2459262.484444368913
(2021-Feb-16.98444437)
0.00011397 TDB
period 1936.973228932663
5.30
1.4529e-05
3.978e-08
d
yr
n .1858569827515747 1.3941e-09 deg/d
Q 3.386251009710415 1.6933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2054  
   data-arc span      12661 days (34.66 yr)  
   first obs. used      1986-10-31  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49403  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:41:33  

Additional Information
 Earth MOID = 1.68545 au 
 Jupiter MOID = 1.61553 au 
 T_jup = 3.227 
[ 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 13.35   n/a E2021B10  
diameter diameter 11.401 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16683 Alepieri           Discovered 1994 May 3 by L. Tesi and G. Cattani at San Marcello Pistoiese.
Alessandro Pieri (1969-2000) was an amateur astronomer from childhood and was for many years a member of the Associazione Astrofili Valdinievole, an organization of amateur astronomers in northern Tuscany. He was an active meteor observer and an astrophotographer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1994 JY = 1994 JO9 = 1999 GK22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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