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16503 Ayato (1990 TY)
Classification: Main-belt Asteroid          SPK-ID: 2016503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464051437015605 3.6668e-08  
a 2.312281715939371 9.5711e-09 au
q 1.74252360744484 8.6658e-08 au
i 22.22603516383846 5.7771e-06 deg
node 184.047349349508 1.0588e-05 deg
peri 272.6841401475823 1.5689e-05 deg
M 102.4520159595271 1.1028e-05 deg
tp 2458635.008272029841
(2019-May-31.50827203)
3.8804e-05 TDB
period 1284.279482809161
3.52
7.9739e-06
2.183e-08
d
yr
n .2803128172791145 1.7404e-09 deg/d
Q 2.882039824433902 1.1929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1434  
   data-arc span      10703 days (29.30 yr)  
   first obs. used      1990-10-15  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:42:59  

Additional Information
 Earth MOID = .908824 au 
 Jupiter MOID = 2.59536 au 
 T_jup = 3.446 
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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 14.2   n/a MPO467877  
diameter diameter 3.817 km 0.558 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.293   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

16503 Ayato           Discovered 1990 Oct. 15 by T. Seki at Geisei.
Ayato Seki (b. 2005) is the first grandchild of the discoverer. He is interested in observing the constellations as a hobby and dreams of making an astronomical discovery some day.
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 2015-11-25Last Updated: 2015-11-30

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Alternate Designations
 1990 TY = 1955 WH = 1999 JU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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