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66784 (1999 TM228)
Classification: Main-belt Asteroid          SPK-ID: 2066784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695390394625094 2.8133e-08  
a 2.589419692750298 1.066e-08 au
q 2.150411965276107 7.1174e-08 au
i 4.907406454839779 4.3446e-06 deg
node 165.7922118068515 5.7202e-05 deg
peri 145.1210978527404 5.9852e-05 deg
M 72.44401627654121 1.7791e-05 deg
tp 2458894.231652428789
(2020-Feb-14.73165243)
7.5006e-05 TDB
period 1521.955998474083
4.17
9.398e-06
2.573e-08
d
yr
n .2365377188045758 1.4606e-09 deg/d
Q 3.02842742022449 1.2467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      9741 days (26.67 yr)  
   first obs. used      1994-05-13  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52211  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:56  

Additional Information
 Earth MOID = 1.13647 au 
 Jupiter MOID = 2.25354 au 
 T_jup = 3.395 
[ 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 16.00   n/a MPCxxxxx  

66784 (1999 TM228)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TM228 = 1995 UQ64 = 1999 RN257 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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