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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08577604340029994 4.0501e-08  
a 2.583556078735938 1.3522e-08 au
q 2.361948860399175 1.0778e-07 au
i .7254410405256578 3.6168e-06 deg
node 279.6483953906185 0.00038986 deg
peri 300.3614745974152 0.00039065 deg
M 329.8686181819476 2.5612e-05 deg
tp 2459127.452662665504
(2020-Oct-04.95266267)
0.00010806 TDB
period 1516.789333976036
4.15
1.1908e-05
3.26e-08
d
yr
n .2373434411331955 1.8634e-09 deg/d
Q 2.805163297072701 1.4682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      10552 days (28.89 yr)  
   first obs. used      1991-03-15  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:40:01  

Additional Information
 Earth MOID = 1.35387 au 
 Jupiter MOID = 2.16676 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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