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JPL Small-Body Database Browser
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66787 (1999 TY228)
Classification: Main-belt Asteroid          SPK-ID: 2066787
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0686364154970619 4.4201e-08  
a 2.766446043611203 1.8482e-08 au
q 2.576567103511702 1.2899e-07 au
i 9.538610734310037 5.1021e-06 deg
node 179.62074683158 2.621e-05 deg
peri 47.68772903877188 4.4481e-05 deg
M 314.0397745190526 3.6049e-05 deg
tp 2459215.066236185631
(2020-Dec-31.56623619)
0.00016876 TDB
period 1680.667233863949
4.60
1.6842e-05
4.611e-08
d
yr
n .2142006417131961 2.1465e-09 deg/d
Q 2.956324983710704 1.975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      10784 days (29.52 yr)  
   first obs. used      1990-10-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:03:21  

Additional Information
 Earth MOID = 1.57943 au 
 Jupiter MOID = 2.02773 au 
 T_jup = 3.316 
[ 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 15.1   n/a MPO333374  

66787 (1999 TY228)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TY228 = 1997 EN43 = 1999 TN326 = 2002 EA87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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