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85860 (1999 AY28)
Classification: Main-belt Asteroid          SPK-ID: 2085860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08597153617115282 3.1797e-08  
a 2.584498355377913 1.0915e-08 au
q 2.362305061534256 8.2025e-08 au
i .7250901445213115 3.4668e-06 deg
node 279.646640292946 0.00032186 deg
peri 300.6600051913182 0.00032279 deg
M 63.56831813462964 2.4014e-05 deg
tp 2459128.520830095050
(2020-Oct-06.02083009)
0.00010134 TDB
period 1517.619216564221
4.16
9.6137e-06
2.632e-08
d
yr
n .2372136541701242 1.5027e-09 deg/d
Q 2.80669164922157 1.1853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      11100 days (30.39 yr)  
   first obs. used      1991-03-15  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:34  

Additional Information
 Earth MOID = 1.35468 au 
 Jupiter MOID = 2.16331 au 
 T_jup = 3.418 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.21   n/a MPO637177  

85860 (1999 AY28)          Discovered 1999-Jan-13 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 AY28 = 1997 TD23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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