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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0859245142507188 4.2872e-08  
a 2.584310580521813 1.5011e-08 au
q 2.362254949217483 1.1203e-07 au
i .7253735014666813 3.7727e-06 deg
node 279.6460383065415 0.00041372 deg
peri 300.1760377989108 0.00041445 deg
M 235.152880354428 2.5691e-05 deg
tp 2459126.749276475466
(2020-Oct-04.24927648)
0.00010915 TDB
period 1517.453827280883
4.15
1.3221e-05
3.62e-08
d
yr
n .2372395083974858 2.0669e-09 deg/d
Q 2.806366211826143 1.63e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      10151 days (27.79 yr)  
   first obs. used      1991-03-15  
   last obs. used      2018-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57439  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:14:34  

Additional Information
 Earth MOID = 1.35433 au 
 Jupiter MOID = 2.16626 au 
 T_jup = 3.418 
[ 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 16.1   n/a MPO432401  

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

[ show close-approach data ]
Alternate Designations
 1999 AY28 = 1997 TD23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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