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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2456849435665149 1.0977e-08  
a 2.313525166168582 8.1764e-09 au
q 1.745126866278742 2.4711e-08 au
i 22.22618933955515 5.9585e-07 deg
node 184.0111340479975 1.4144e-06 deg
peri 272.7090550297518 2.9107e-06 deg
M 213.4479534827556 3.4226e-06 deg
tp 2459919.737853866806
(2022-Dec-06.23785387)
1.4603e-05 TDB
period 1285.31557128331
3.52
6.8138e-06
1.866e-08
d
yr
n .2800868580784109 1.4848e-09 deg/d
Q 2.881923466058422 1.0185e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      11207 days (30.68 yr)  
   first obs. used      1990-10-15  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:39:03  

Additional Information
 Earth MOID = .911461 au 
 Jupiter MOID = 2.59346 au 
 T_jup = 3.446 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457434.5 (2016-Feb-16.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2460294064521998 1.0999e-08  
q 1.74381804011135 2.4821e-08 au
tp 2457351.197215281685
(2015-Nov-24.69721528)
6.9564e-06 TDB
node 184.0574185951169 1.4156e-06 deg
peri 272.8781115258865 2.8969e-06 deg
i 22.22586655247071 5.9582e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      11207 days (30.68 yr)  
   first obs. used      1990-10-15  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:39:03  

Additional Information
 Jupiter MOID = 2.59346 au 
 T_jup = 3.446 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209824866906512E-16 -2.646448283735174E-16 2.639818018543351E-14 1.880343041635208E-16 5.098790753157297E-15 -3.156655379799261E-15
q -2.646448283735174E-16 6.160846823130644E-16 -6.678632839386865E-14 -4.000863404573442E-16 -1.448492931112808E-14 7.399084359615103E-15
tp 2.639818018543351E-14 -6.678632839386865E-14 4.839146978180319E-11 2.313895982965774E-12 1.734790424081901E-11 -1.076752171609272E-12
node 1.880343041635208E-16 -4.000863404573442E-16 2.313895982965774E-12 2.003935575751202E-12 -9.85590845533674E-13 -4.051950127141876E-13
peri 5.098790753157297E-15 -1.448492931112808E-14 1.734790424081901E-11 -9.85590845533674E-13 8.392225287522953E-12 1.064543606529126E-13
i -3.156655379799261E-15 7.399084359615103E-15 -1.076752171609272E-12 -4.051950127141876E-13 1.064543606529126E-13 3.549956294366812E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

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