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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06851819448385636 4.3916e-08  
a 2.765977462363845 1.8246e-08 au
q 2.576457680659636 1.2843e-07 au
i 9.539270936376701 5.1001e-06 deg
node 179.6214169522885 2.5624e-05 deg
peri 47.79432352470531 4.42e-05 deg
M 356.7844469852782 3.6097e-05 deg
tp 2459215.508059952466
(2021-Jan-01.00805995)
0.00016851 TDB
period 1680.240244260221
4.60
1.6626e-05
4.552e-08
d
yr
n .2142550752666334 2.1201e-09 deg/d
Q 2.955497244068054 1.9497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      10827 days (29.64 yr)  
   first obs. used      1990-10-19  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:58  

Additional Information
 Earth MOID = 1.57823 au 
 Jupiter MOID = 2.02756 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 15.18   n/a E2021B10  

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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