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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2461909720267616 1.0991e-08  
a 2.31258645887968 8.264e-09 au
q 1.743248550672165 2.4734e-08 au
i 22.22460161727799 5.9599e-07 deg
node 184.0382904036627 1.4159e-06 deg
peri 272.6971689586935 2.9124e-06 deg
M 158.5195448443921 3.1874e-06 deg
tp 2458634.878759037213
(2019-May-31.37875904)
9.1374e-06 TDB
period 1284.533380073017
3.52
6.8854e-06
1.885e-08
d
yr
n .2802574114341321 1.5022e-09 deg/d
Q 2.881924367087195 1.0298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1806  
   data-arc span      10893 days (29.82 yr)  
   first obs. used      1990-10-15  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:32:04  

Additional Information
 Earth MOID = .909385 au 
 Jupiter MOID = 2.59445 au 
 T_jup = 3.446 
[ 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 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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