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66805 (1999 TU284)
Classification: Main-belt Asteroid          SPK-ID: 2066805
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 .2770921233845863 5.7081e-08  
a 2.77260555463351 2.2206e-08 au
q 2.004338394192212 1.6084e-07 au
i 9.885201457575636 5.6332e-06 deg
node 106.3202459755556 2.9436e-05 deg
peri 221.5655645992873 3.0525e-05 deg
M 255.6567288118569 7.1954e-06 deg
tp 2459689.256456388710
(2022-Apr-19.75645639)
3.5811e-05 TDB
period 1686.283382688595
4.62
2.0259e-05
5.547e-08
d
yr
n .2134872487600626 2.5648e-09 deg/d
Q 3.540872715074808 2.8359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      8396 days (22.99 yr)  
   first obs. used      1998-03-24  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:02:28  

Additional Information
 Earth MOID = 1.00245 au 
 Jupiter MOID = 1.84906 au 
 T_jup = 3.259 
[ 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 15.49   n/a E2021B10  

66805 (1999 TU284)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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